General Dynamics C4 Systems URC-200XCVR-V2 URC-200 (V2) Tactical, Line-Of-Sight, Radio User Manual 1

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Exhibit 8 – User’s Manual RevA
General Dynamics C4 Systems
VHF URC-200 Transceiver
FCC ID: MIJURC-200XCVR-V2
Model No. URC-200 (V2)
8 Product Functional Requirements (User Manual)
Page 1 of 98
Exhibit 8 RevA
FCC ID: MIJURC-200XCVR-V2
10/1/09
URC-200 (V2) LIGHTWEIGHT VHF/UHF
TRANSCEIVER
OPERATION AND LIMITED MAINTENANCE
MANUAL
8220 East Roosevelt Street, M/D R3163
Scottsdale, AZ 85257
DOCUMENT NO. URC-200_V2_Manual_ 99-P42304K
PRELIMINARY ISSUE AUGUST 2009
For customer support, service and technical questions within the hours of 7:30 am – 4:30
pm MST, Mon-Fri, please call the following toll free phone number:
In the U.S.: 1-800-424-0052
E-mail: customerservice@gdc4s.com
For customer support, service and technical questions outside of these hours, please call
the following toll free phone numbers:
In the U.S.: 1-877-449-0600
Outside the U.S.: Toll free AT&T Direct 877-466-9467 (Dial AT&T Direct access number for the
country where you are located. When prompted, enter 877-466-9467.
E-mail: customerservice@gdc4s.com
For additional product information, please contact:
GENERAL DYNAMICS
C4 Systems
8220 E. Roosevelt Street, M/D R3163
Scottsdale, AZ 85257
Web site: http://www.gdc4s.com
2009 General Dynamics. All Rights Reserved. All trademarks indicated as such herein are
trademarks of General Dynamics® Reg. U.S. P.T.O. All other product or service names are the
property of their respective owners.
General Dynamics reserves the right to make changes in its products and specifications at any
time and without notice. Printed in the U.S.A.
General Dynamics C4 Systems, Inc
EXPORT CONTROL WARNING:
Do not disclose this document or its contents to non-U.S. citizens, or transmit this
document or its contents outside the United States without he written permission
of General Dynamics and required U.S. Government approvals.
TABLE OF CONTENTS
Paragraph
Page
SECTION 1.
INTRODUCTION ................................................................................................ 1-1
1-1 General Information ............................................................................................................ 1-1
1-2 AbbreviationS and ACRONYMS ........................................................................................ 1-2
1-3 Equipment Description........................................................................................................ 1-4
1-4 Features .............................................................................................................................. 1-4
1-5 URC-200 (V2) System ........................................................................................................ 1-4
1-5.1 Transceiver - URC-200 (V2) ................................................................................... 1-4
1-5.2 Antenna - UVU-100 ................................................................................................. 1-4
1.5.3 Battery Case - UBC-100.......................................................................................... 1-5
1-5.4 Handset - H-189/GR................................................................................................ 1-5
1-6 Minimum Equipment Requirement ..................................................................................... 1-5
1-7 Reference Data ................................................................................................................... 1-6
1-8 AVAILABLE Options ......................................................................................................... 1-11
1-8.1 30-90 MHz Option ................................................................................................. 1-11
1-8.2 400-420 MHz Option ............................................................................................. 1-11
1-8.3 ECS-8, 8.33 kHz Option ....................................................................................... 1-11
1-9 COMPATIBLE Accessories .............................................................................................. 1-11
1-9.1 Power Supplies........................................................................................................ 1-11
1-9.2 Battery Chargers ..................................................................................................... 1-13
1-9.3 Interface Boxes........................................................................................................ 1-13
1-9.4 Shock Trays and Mounts......................................................................................... 1-13
1-9.5 Cables...................................................................................................................... 1-13
1-9.6 UEC-120/ UEC-200 Remote Control Unit ............................................................... 1-14
1-9.7 Power Amplifiers...................................................................................................... 1-14
1-9.8 Antennas ................................................................................................................. 1-14
1-9.9 Other Accessories ................................................................................................... 1-14
SECTION 2.
OPERATION ...................................................................................................... 2-1
2-1. General Information ............................................................................................................ 2-1
2-2. Controls, Indicators And Connectors .................................................................................. 2-1
2-3. KEYPAD and display functions........................................................................................... 2-3
2-3.1. Normal Operating Mode configuration procedures ................................................. 2-4
2-3.1.1 Turning on the Unit .................................................................................. 2-5
2-3.1.2 Cancellation of Presets ............................................................................ 2-5
2-3.1.3 Front Panel Illumination ........................................................................... 2-5
2-3.1.4 Select Speaker ON/OFF .......................................................................... 2-5
2-3.1.5 Select Meter Mode ................................................................................... 2-6
2-3.2. Setting Preset Channels.......................................................................................... 2-6
2-3.2.1 Select Preset Channels ........................................................................... 2-6
2-3.2.2 Select Frequencies .................................................................................. 2-7
2-3.2.3 Select Modulation Mode .......................................................................... 2-7
2-3.2.4 Select Cipher Text/Plain Text .................................................................. 2-8
2-3.2.5 Select Receive/Transmit Data ................................................................. 2-8
2-3.2.6 Storing Presets......................................................................................... 2-8
2-3.2.7 Select Scan Channels.............................................................................. 2-8
2-3.2.8 Select Transmit Power Levels ................................................................. 2-9
2-3.3. Selecting Special Modes ......................................................................................... 2-9
2-3.3.1 Select Scan Mode .................................................................................... 2-9
2-3.3.2 Select Beacon Mode .............................................................................. 2-10
TABLE OF CONTENTS
Paragraph
2-4.
2-5.
2.5.1
2-6.
2-7.
Page
2-3.3.3 Internal Voltage Measurements ............................................................. 2-10
2-3.3.4 Release from Remote Control ............................................................... 2-10
ECS-8 8.33 KHZ Option ................................................................................................... 2-10
Operating Procedure ........................................................................................................ 2-11
Siting ................................................................................................................................. 2-11
2-5.1. Unencrypted Operation ......................................................................................... 2-11
URC-200 (V2) EEPROM Limitations ................................................................................ 2-11
2-6.1. Front Panel User Command Limitations ............................................................... 2-11
2-6.1.1 Select Scan Channels............................................................................ 2-11
2-6.1.2 Cancellation of Presets .......................................................................... 2-11
2-6.1.3 Select Preset Channels ......................................................................... 2-11
2-6.1.4 Storing Presets....................................................................................... 2-12
2-6.2. Alignment Command Limitations .......................................................................... 2-12
2-6.2.1 Warp Alignment Command .................................................................... 2-12
Error Messages ................................................................................................................ 2-12
SECTION 3.
INSTALLATION ................................................................................................. 3-1
3-1. General Information ............................................................................................................ 3-1
3-2. Assembly and Preparation for Use ..................................................................................... 3-1
3-2.1. Checking Unpacked Equipment .............................................................................. 3-1
3-2.2. Installing or replacing the Batteries ......................................................................... 3-1
3-2.3. Attaching and Removing the Handset..................................................................... 3-2
3-2.4. Attaching the Antenna ............................................................................................. 3-2
3-2.4.1 Attaching the Antenna .............................................................................. 3-2
3-2.4.2 Removing the Antenna ............................................................................ 3-3
3-3. Remote Operation .............................................................................................................. 3-4
3-3.1. Remote Control Interconnect .................................................................................. 3-4
3-3.1.1 X-mode Connector ................................................................................... 3-4
3-3.1.2 Data Rates and Logic Levels ................................................................... 3-4
3-3.1.3 Data Exchange Protocol .......................................................................... 3-5
3-3.2. Remote Control Codes ............................................................................................ 3-6
3-4. Interface Characteristics ................................................................................................... 3-18
SECTION 4.
SYSTEM MAINTENANCE ................................................................................. 4-1
4-1. General Information ............................................................................................................ 4-1
4-2. Manual System Test ........................................................................................................... 4-1
4-2.1. Test Equipment Required........................................................................................ 4-1
4-2.2. Receiver Tests ........................................................................................................ 4-2
4-2.2.1 FM PT Sensitivity and Distortion .............................................................. 4-2
4-2.2.2 FM CT Sensitivity ..................................................................................... 4-5
4-2.2.3 Receive AM PT Sensitivity and Distortion ............................................... 4-7
4-2.2.4 Receiver AM CT Sensitivity ..................................................................... 4-9
4-2.2.5 CT Audio Response ............................................................................... 4-11
4-2.2.6 Squelch Sensitivity ................................................................................. 4-13
4-2.2.7 Scan Function ........................................................................................ 4-15
4-2.2.8 Signal-Strength Meter ............................................................................ 4-17
4-2.3. Transmitter Tests .................................................................................................. 4-18
4-2.3.1 Frequency Accuracy and FM Power Output .......................................... 4-20
4-2.3.2 FM PT Deviation and Distortion ............................................................. 4-22
4-2.3.3 FM CT Deviation and Distortion ............................................................. 4-24
4-2.3.4 AM Power Output, PT % Modulation and PT Distortion ........................ 4-26
ii
TABLE OF CONTENTS
Paragraph
Page
4-2.3.5 AM CT % Modulation and CT Distortion ................................................ 4-29
4-2.3.6 Beacon ................................................................................................... 4-31
4-3. Power Supply Voltages..................................................................................................... 4-33
4-3.1. Input Voltage ......................................................................................................... 4-33
4-3.2. Internal voltages .................................................................................................... 4-33
4-3.2.1 Voltage Measurements .......................................................................... 4-33
SECTION 5.
OPTIONS ........................................................................................................... 5-1
5-1. 30 TO 90 MHZ OPTION 01-P37200N001 TO THE URC-200 (V2) TRANSCEIVER......... 5-1
5-1.1. General Information ................................................................................................. 5-1
5-1.2. Features .................................................................................................................. 5-1
5-1.2.1 Frequency Range: ................................................................................... 5-1
5-1.2.2 Tone Squelch: .......................................................................................... 5-1
5-1.3. Limitations ............................................................................................................... 5-1
5-1.3.1 Modulation:............................................................................................... 5-1
5-1.3.2 Carrier-to-Noise Squelch: ........................................................................ 5-1
5-1.3.3 Select Meter Mode: .................................................................................. 5-1
5-1.3.4 UEC-120/220 Remote Control Optional Accessory:................................ 5-1
5-1.4. Specifications .......................................................................................................... 5-1
5-1.5. Required System Equipment................................................................................... 5-2
5-1.6. Installation And Operation ....................................................................................... 5-2
5-1.6.1 Siting: ....................................................................................................... 5-2
5-1.6.2 Antenna Installation: ................................................................................ 5-3
5-1.6.3 Selecting LVHF Frequencies: .................................................................. 5-3
5-1.6.4 Squelch: ................................................................................................... 5-3
5-2. 400 TO 420 MHZ OPTION 01-P39234N001 TO THE URC-200 (V2) TRANSCEIVER..... 5-4
5-2.1. General Information ................................................................................................. 5-4
5-2.2. Features .................................................................................................................. 5-4
5-2.2.1 Frequency Range: ................................................................................... 5-4
5-2.3. Limitations ............................................................................................................... 5-4
5-2.3.1 Modulation:............................................................................................... 5-4
5-2.3.2 Text Mode: ............................................................................................... 5-4
5-2.4. Specifications .......................................................................................................... 5-4
5-2.5. Required System Equipment................................................................................... 5-4
5-2.6. Installation And Operation ....................................................................................... 5-5
5-2.6.1 Selecting 400 to 420 MHz Frequencies: .................................................. 5-5
5-3. ECS- 8 OPTION - Part number 01-P42311K001 ............................................................... 5-5
5-3.1. General Information ................................................................................................. 5-5
5-3.2. enabling Aviation mode ........................................................................................... 5-5
5-3.3. tuning and channel spacing in aviation mode ......................................................... 5-5
5-3.4. Tuning Increment Vs. Channel Spacing, Electrical Characteristics ........................ 5-6
iii
LIST OF ILLUSTRATIONS
Figure
Page
Figure 1-1. URC-200 (V2) Transceiver Set .................................................................................. 1-1
Figure 1-2. URC-200 (V2) Minimum System Requirement.......................................................... 1-6
Figure 1-3. Mechanical Configuration ........................................................................................ 1-11
Figure 2-1. URC-200 (V2) Front and Rear Panel Controls, Indicators and Connectors............. 2-2
Figure 2-2. Key-pad and Display Functions ................................................................................. 2-4
Figure 3-1. Remote-Control Unit .................................................................................................. 3-4
Figure 3-2. URC-200 (V2) Interfaces ......................................................................................... 3-23
Figure 4-1. Receiver Test Equipment Setup ................................................................................ 4-3
Figure 4-2. Transmitter Test Setup ............................................................................................ 4-20
Figure 4-4. Breakout Box Schematic.......................................................................................... 4-34
iv
LIST OF TABLES
Table
Page
Table 1-1. Battery Types .............................................................................................................. 1-5
Table 1-2. Operating Parameters Standard Test Conditions: 28Vdc Input, +25C .................... 1-7
Table 1-3. Mechanical Data ......................................................................................................... 1-9
Table 1-4. Environmental Data..................................................................................................... 1-9
Table 2-1. Front Panel Controls, Indicators and Connector and Rear Panel Connectors........... 2-3
Table 2-2. Error Messages ......................................................................................................... 2-12
Table 3-1. Remote Responses.................................................................................................... 3-6
Table 3-2 URC-200 (V2) Operational Frequency-Based Dependencies.................................... 3-8
Table 3-3. Remote Transceiver Operation Commands .............................................................. 3-9
Table 3-4. Transceiver Customizing Codes .............................................................................. 3-14
Table 3-5. Transceiver Status Inquiry Commands.................................................................... 3-17
Table 3-6. Power Connector J1 (CA110821-1) Pin Characteristics ......................................... 3-18
Table 3-7. Power Connector J5 (CA110821-1) Pin Characteristics ......................................... 3-20
Table 3-8. Handset Connector J4 (GC283F-1-050) Pin Characteristics .................................. 3-20
Table 3-9. X-MODE Connector J2 (MS3114E16-26S) Pin Characteristics .............................. 3-21
Table 3-10. URC-200 (V2) Connector Identification .................................................................. 3-23
Table 4-1. Test Equipment Required ........................................................................................... 4-1
Table 4-2. Alternate Test Equipment............................................................................................ 4-1
Table 4-3. FM Frequency Presets................................................................................................ 4-4
Table 4-4. AM Frequency Presets................................................................................................ 4-8
SECTION 1. INTRODUCTION
1-1
GENERAL INFORMATION
This manual provides operation and maintenance instructions for the URC-200 (V2) Radio
Set shown in Figure 1-1. The radio set is a lightweight VHF/UHF transceiver providing AM/FM
transmission and reception of non-secure voice or data in the frequency bands used in maritime,
land, mobile and tactical line-of sight communications as well as military and civilian air traffic
control operations. Secure communications can be achieved with an appropriate external
encryption device and with the transceiver in the data [Cipher Text (CT)] mode.
NOTICE
The URC-200 (V2) is FCC certified in the 115-149.995 (AM) and
115 - 173.995 (FM) bands.
1. The URC-200 (V2) transceiver is to be tuned only to those frequencies that
the transceiver user, by law, is permitted to use.
2. Operation and tuning of the transceiver should be restricted to those users
who are knowledgeable about which frequencies are authorized for use.
3. Transceiver operation on unauthorized frequencies is a violation of the law.
4. The capabilities of this transceiver allow users the freedom for authorized
personnel to easily tune the transceiver. This allows the transceiver to work with
other communication systems within the band, provided that the transceiver's
tuned frequencies are permitted by regulation.
Figure 1-1. URC-200 (V2) Transceiver Set
1-1
1-2
ABBREVIATIONS AND ACRONYMS
ACK
ADC
AGC
ALC
AM
ANT
APPS
BCN
CALRF
CH
COMSEC
CT
dB
DSB
EEPROM
EPROM
ESD
FM
FREQ
GRD
HDST
HI
Hz
IF
kHz
L.O.
LCD
LED
LNA
LO
LOS
MED
MHz
mW
NAK
nom
PCV
PLL
ppm
PS
PT
PTT
PWR
R/T
RAM
RCU
RCV
RF
RRKS
Acknowledge
Analog-To-Digital converter
Automatic Gain Control
Automatic Level Control
Amplitude Modulation
Antenna
Audio Processor Power Supply
Beacon
Calibration RF
Channel
Communication Security
Cipher Text (Data)
Decibel
Double Sideband
Electrically-Erasable-Programmable-Read-Only-Memory
Erasable Programmable Read-Only Memory
Electrostatic Discharge
Frequency Modulation
Frequency
Guard
Handset/Headset
High Power
Hertz
Intermediate Frequency
Kilohertz
Local Oscillator
Liquid Crystal Display
Light Emitting Diode
Low Noise Amplifier
Low Power
Line-Of-Sight
Medium Power
Megahertz
Milliwatt
Not-Acknowledge
Nominal
Plain Text/Cipher Text/Voice Privacy
Phase-Locked Loop
parts per million
Power Supply
Plain Text (Voice)
Push-To-Talk
Power
Receive/Transmit
Random-Access Memory
Remote Control Unit
Receive
Radio Frequency
Release Remote Key Sequence
SINAD
Ratio:
SPKR
SQ
STO
T/R
TX
UBS
Loudspeaker
Squelch
Store
Transmit/Receive
Transmit
UHF Band Selector
Signal  noise  distortion
noise  distortion
1-2
UHF
VCA
VCO
Vdc
Vf
VHF
VOL
Vr
VSWR
X-mode
XMT
Ultra-High Frequency
Voltage-Controlled Attenuator
Voltage-Controlled Oscillator
Volts, direct current
Forward voltage
Very-High Frequency
Volume
Reverse voltage
Voltage Standing-Wave Ratio
Watt
Interface connector for COMSEC equipment
Transmit
1-3
1-3
EQUIPMENT DESCRIPTION
The URC-200 (V2) VHF/UHF Transceiver is a lightweight, tactical, Line-Of-Sight (LOS)
transceiver that provides AM and FM communication of nonsecure voice or data. It is suitable for
manpack, vehicular, or fixed station applications. The transceiver can be used with other AM or
FM transceivers operating in the same VHF and UHF frequency ranges.
 In the AM mode the VHF frequency range is 115 to 149.9950 MHz
 In the FM mode the VHF frequency range is 115 to 173.9950 MHz
 In both the AM and FM modes the UHF frequency range is 225 to 399.9950 MHz
The transceiver has standard tuning increments of 25 kHz, 12.5 kHz and 5 kHz with a
channel spacing as detailed in Table 1-2. The transceiver is capable of transmitting and
receiving analog Plain Text (PT) voice and digital Cipher Text (CT) voice or data. With an
appropriate external encryption device and the transceiver in the data (CT) mode, secure
communications can be achieved. The URC-200 (V2) can be operated in all weather conditions
and can be remote controlled.
Three options are available. Refer to SECTION 5, OPTIONS, for a full description of each.
 A 30-90 MHz FM Low VHF option
 An extended 400-420 MHz FM UHF option
 An 8.33 kHz tuning increment and channel spacing option
1-4
FEATURES
 Microprocessor controlled, fully synthesized transceiver.
 COMSEC compatibility.
 Multi-band capability including civilian and military frequencies.
 Easy access front panel controls.
 Built-in speaker.
 RS-232 remote control for all programmable functions.
 Backlit display and keypad.
 Ten preset memory channels with fully programmable frequencies, including
transmit/receive offsets and AM/FM selection.
 Self-calibrating varactor-tuned receiver front-end.
1-5
URC-200 (V2) SYSTEM
The following items constitute a URC-200 (V2) system.
1-5.1 TRANSCEIVER - URC-200 (V2)
The transceiver is contained in cast-aluminum housing with all operating controls and
connectors located on the front panel. The battery connectors, for two batteries, are located on
the rear panel. The front panel components are protected by handles and an extension on the top
cover to protect the volume and squelch controls.
1-5.2 ANTENNA - UVU-100
CAUTION
To comply with RF exposure requirements, a
minimum separation distance of 20 cm (7.9 inches)
is required between the antenna and all persons
while the transceiver is transmitting.
1-4
The antenna is a 12-inch long, broadband, VHF/UHF vertically polarized antenna that is
attached to the front panel antenna connector. The antenna connector is a BNC type connector,
surrounded by a threaded sleeve. The antenna is screwed onto this sleeve.
1.5.3 BATTERY CASE - UBC-100
The battery case holds two batteries. Always use two of the same type battery when
replacing batteries. Refer to Table 1-1 for available battery types and part numbers.
Table 1-1. Battery Types
Part Number
BA-5390/U
BA-5590B/U
BB-390A/U
BB-590/U
BB-2590/U
Composition
Lithium Manganese
Dioxide
Lithium Sulfur Dioxide
Nickel Metal Hydride
NiCad
Lithium Ion
Type
Non-rechargable
Non-rechargable
Rechargable
Rechargable
Rechargable
WARNING
DO NOT THROW BATTERIES IN THE TRASH
Dispose of all used batteries in accordance with all Federal, State
and local laws and regulations. Lithium batteries may be used in
the URC-200 (V2) Transceiver however lithium batteries contain
hazardous materials.
Improper
handling,
reverse-current
operation
or
high
environmental temperatures may cause internally generated heat,
fire or toxic materials and gasses to be released from the battery.
The following precautions must be strictly observed to prevent
injury to personnel or damage to equipment:
 DO NOT heat, incinerate, crush, puncture, disassemble or
mutilate the batteries.
 DO NOT recharge primary Non- rechargeable) batteries.
 DO NOT store in equipment during periods of non-use for
more than 30 days.
 DO follow all safety instructions that come with the batteries or
printed on them.
 TURN OFF the equipment immediately if you (1) detect that
the battery compartment is becoming unduly hot, (2) hear battery
cells venting (hissing), or (3) smell irritating sulfur dioxide gas.
Remove the battery only after it is cool (after 30 to 60 minutes),
and dispose of it by following approved procedures.
Quick release latches enable the battery case to be securely attached to the unit for
operation. When the battery case is attached to the unit, the battery case is watertight. The case
contains a vent to permit venting of battery gasses.
1-5.4 HANDSET - H-189/GR
The handset contains a microphone and receiver for transmitting and receiving audio
signals. A retractable cord with a 5-pin connector attaches to the transceiver front panel. A pushto-talk switch is located in the handset handle.
1-6
MINIMUM EQUIPMENT REQUIREMENT
As a minimum, the items shown in Figure 1-2 are required for an LOS system.
1-5
1-7
REFERENCE DATA
The operating parameters of the URC-200 (V2) transceiver are listed in Table 1-2. The
physical characteristics are listed in Table 1-3, and the environmental data in Table 1-4.
Find
No.
Qty
Req.
Part No.
01-P36744M003
85-P35988M001
01-P04535L001
01-P36751M001
Nomenclature
Receiver-Transmitter
Antenna VHF/UHF
Handset, H-189/GR
Battery Box
Figure 1-2. URC-200 (V2) Minimum System Requirement
1-6
Table 1-2. Operating Parameters
Standard Test Conditions: 28Vdc Input, +25C
Characteristics
Frequency Range
Specifications
General
VHF - (FM) 115 to 173.995 MHz (AM) 115 to 149.995 MHz.
UHF - (FM) 225 to 399.995 MHz (AM) 225 to 399.995 MHz.
25 kHz 12.5 kHz and 5 kHz
25 kHz
1 ppm
10 transmit and 10 receive preset channels.
AM or FM
Tuning Increments
Channel Spacing
Stability
Preset Channels
Modulation
Power
Voltage
Current
Estimated Battery Life
BB-590/U
BA-5590/U
+22 to +34 Vdc
3.5 Amps Maximum
Hours, based on 9:1 ratio receive to transmit.
23
BB-2590/U
19
BA-5390/U
30
BB-390/U
11
Plain Text (PT)
Cipher Text (CT)
T-R
Beacon
Scan
IF Selectivity
Audio Response
Operating Modes
AM or FM
AM or FM
Relay mode, each of the ten preset channels may have separate
receive and transmit frequencies.
Transmit an emergency audio sweep tone on any selected frequency.
Scan up to 10 channels.
Bandwidth
PT - 9.5 kHz, 6 dB down
CT - 15 kHz, 6 dB down
PT - 300 to 3000 Hz. (+2, -4 dB)
CT - 30 Hz to 10.24 kHz. (+2, -4 dB)
Receiver Characteristics
Sensitivity (10 dB SINAD)
AM-CT
AM-PT
FM-CT
FM-PT
Input Impedance
RF Signal Level
at the Antenna Port
Image Response
Spurious Response
Squelch
Squelch Range
 -105 dBm (1.3V), 16 kb/sec with 70% modulation
 -103.5 dBm (1.5V), 1 kHz modulation at 30%
 -107 dBm (1.0V), 16 kb/sec with 5.6 kHz deviation
 -114 dBm (0.4V), 1 kHz modulation with 6.5 kHz deviation
50 nominal
FM - No Signal to +23 dBm No signal to 200 mW) (typical)
AM - No Signal to 0 dBm No signal to 1.0 mW) (typical)
FM or AM - +27 dBm (500 mW) maximum for short durations to prevent
damage
80 dB (typical)
80 dB (typical)
Manual adjust, Carrier-to-noise ratio squelch, changing to carrier-level
squelch at stronger signal levels.
-110 dBm (0.7V) to -80 dBm (22.3V) nominal.
1-7
Table 1-2. Operating Parameters
Standard Test Conditions: 28Vdc Input, +25C
Characteristics
Distortion
High Power Output Mode
AM (at 80% AM PT 5%)
FM
Medium Power Output Mode
FM
Low Power Output Mode
AM (at 80% AM PT 5%)
FM
Modulation
AM (PT)
AM (CT)
FM (PT)
VHF
UHF
FM (CT)
VHF
UHF
Spurious Outputs
Harmonic Outputs
Output Impedance
Protection
Transmit Duty Cycle when in the
Hi Power Output Mode (10 W)
Specifications
AM - 10% Maximum, RF = -33dBm (5 mV), 1 kHz @ 85% AM
Modulation
FM - 10% Maximum, RF = -33dBm (5 mV), 1 kHz @ 6.5 kHz
Modulation
Transmitter Characteristics
Tolerance
Expressed in Watts
Maximum (+2 dBm)
Typical
Minimum (-2 dBm)
Maximum (+2 dBm)
Typical
Minimum (-2 dBm)
Tolerance
15.85 Watts Avg.
10 Watts Avg.
6.31 Watts Avg.
15.85 Watts
10 Watts
6.31 Watts
Expressed in Watts
Maximum (+2 dBm)
Typical
Minimum (-2 dBm)
Tolerance
7.94 Watts
5 Watts
3.16 Watts
Expressed in Watts
Maximum (+2 dBm)
Typical
Minimum (-2 dBm)
Nominal
7.94 Watts Avg.
5 Watts Avg.
3.16 Watts Avg.
0.1 Watts or 100 mW
Expressed in
dBm
42 dBm Avg.
40 dBm Avg.
38 dBm Avg.
42 dBm
40 dBm
38 dBm
Expressed in
dBm
39 dBm
37 dBm
35 dBm
Expressed in
dBm
39 dBm Avg.
37 dBm Avg.
35 dBm Avg.
20 dBm
60% to 90% at 1 kHz. : Distortion 10% Max. @ 30% AM; 15% Max. @
80% AM
70% nominal at 8 kHz. : Distortion 10% Max. @ 30% AM
3.3 kHz at 1 kHz. : Distortion 10% Max.
6.5 kHz at 1 kHz. : Distortion 10% Max.
5.0 kHz at 1 kHz.
5.6 kHz at 1 kHz.
>=70 dB below CW carrier (typical)
>=53 dB below CW carrier
50 nominal
No damage from open or short circuits at the antenna port.
Gradual transmit power reduction for high VSWR loads.
25 degrees C: continuous
55 degrees C: 9:1 receive to transmit duty cycle
1-8
Table 1-3. Mechanical Data
Characteristics
Height
Width
Depth
Weight (approximate)
Height
Width
Depth
Weight (approximate)
Specification
Transceiver
3.1 inches
10.8 inches
9.75 inches (including handles)
9.2 pounds
Battery Case
3.10 inches
10.80 inches
5.20 inches
1.1 pounds without batteries
6.9 lbs with two BA-5390/U batteries
5.5 lbs with two BA-5590B/U batteries
9.1 lbs with two BB-390A/U batteries
6.9 lbs with two BB-590/U batteries
7.4 lbs with two BB-2590/U batteries
Table 1-4. Environmental Data
Characteristics
Temperature (Operating)
Humidity
Altitude (Operating)
Specification
-20 C to +55 C
95% relative
15,000 feet, MSL
1-9
1-10
Figure 1-3. Mechanical Configuration
1-8
AVAILABLE OPTIONS
Various options are available for purchase to extend the URC-200 (V2) frequency range or
change the tuning increments or channel spacing.
1-8.1 30-90 MHZ OPTION
This option adds frequency range of 30-90 MHz to the URC-200 (V2). This option is for FM
only in both receive and transmit modes. Plain or cipher text types of signals may be used. See
Section 5 for a detailed description of this option.
1-8.2 400-420 MHZ OPTION
This option extends the UHF frequency range of the URC-200 (V2) to 420 MHz. In 400-420
MHz region this option is for FM only in both receive and transmit modes. Both plain text and
cipher text signals may be used in 400 to 420 MHz frequency range. See Section 5 for a detailed
description of this option.
1-8.3 ECS-8, 8.33 KHZ OPTION
This option allows 8.33 kHz tuning in the VHF/UHF bands, and user selectable 8.33 kHz
receive channel spacing in the 117.9750 to 136.9750 MHz band.
It also allows the operator to place the radio into Aviation mode, which restricts the operating
frequency range from 117.9750 to 136.9750 kHz, with tuning increments of 25 and 8.33 kHz.
Channel spacings of 25 or 8.33 kHz are assigned automatically by frequency, following the ICAO
standards for frequency entry.
This mode also restricts modulation to AM, and allows PT only, disabling the CT feature of
the radio.
1-9
COMPATIBLE ACCESSORIES
The following paragraphs describe various accessories which can be attached and/or used
with the URC-200 (V2) transceiver. Unless otherwise noted, they may be selected and purchased
as required from General Dynamics C4 Systems. Other accessories are also available. Please
contact General Dynamics C4 Systems or refer to our website at http://www.gdc4s.com for
more information.
NOTE
The list of accessories offered by General Dynamics C4 Systems
may change over time. Please contact GDC4S or refer to
our website at http://www.gdc4s.com for the most
up-to-date product information.
1-9.1 POWER SUPPLIES

UAC-100
Power Supply, AC Input
The UAC-100 power supply powers the URC-200 (V2) transceiver from
a 110/220-Vac source.

UDD-100A
Power Supply, DC Input
The UDD-100A power supply powers the URC-200 (V2) transceiver from
a 12 Vdc source.

UAC-350
AC Power Supply
1-11
The UAC-350 power supply powers the URC-200 (V2) transceiver and
the UPA-50 or UPA-55/55H power amplifiers from a 110/220-Vac
source.
1-12

UAD-100A
Uninterruptible Power Supply
Intended for “jerk-and-run” applications, the UAD-100A power supply
operates from a110/220-Vac source but includes two batteries which
power the radio when disconnected from the source.
1-9.2 BATTERY CHARGERS

UBS-110
Battery Charger
Commercial grade battery charger charges a single battery.

LSBC-102
Battery Charger
Ruggedized, military grade battery charger charges a two batteries at
once.
1-9.3 INTERFACE BOXES

UIB-100/100A Power Interface Box
Power distribution box that attaches to the rear of the URC-200 (V2)
transceiver. Provides the mechanical connections to distribute unfiltered
28Vdc from a power supply or other source to the transceiver and power
amplifier.

UFB-100/100A Power Filter Box
Power distribution box with internal filter that attaches to the rear of the
URC-200 (V2) transceiver. Provides the mechanical connections to
distribute filtered 28Vdc from a power supply or other source to the
transceiver and power amplifier.

UBC-100
Battery Box
Attaches batteries to the rear of the URC-200 (V2) Transceiver
1-9.4 SHOCK TRAYS AND MOUNTS

UST-100
Shock Tray
Used to mount the URC-200 (V2) Transceiver and power interface/filter
box in a vehicular or other setting where shock and vibration damping is
required.

UST-200
Shock Tray Mounts
Used to mount the URC-200 (V2) Transceiver in a 10 watt or 30/50 watt
system configuration in a vehicular or other setting where shock and
vibration damping is required.

URM-100
Rack Mount
Used to mount the URC-200 (V2) Transceiver in a 10 watt or 30/50 watt
system configuration in a 19” rack.
1-9.5 CABLES
1-13
In addition to the cables shown below, other cables for data and audio connections, remote
control, power, and RF/Antenna connections are available.

LSCA-103A and LSCA-110 Cable Assemblies
Used to remote the PTSH-104 Amplified Speaker assembly.

PTKY-103
CRYPTO Cable Assembly
Shielded, three-foot long water-tight cable assembly used to connecting
the transceiver to a COMSEC device for secure operation.
1-9.6 UEC-120/ UEC-200 REMOTE CONTROL UNIT
Two remote control units are available. The UEC-120 controls one transceiver. The UEC-220 can
control one or two transceivers.
1-9.7 POWER AMPLIFIERS
The UPA-50 and the UPA-55/55H are 50 Watt power amplifiers that cover frequency range of
100 to 420 MHz.

50 WATT – FM/AM Power Amplifier
UPA-50
The UPA-50 supplies 50 Watt FM and 30 Watt AM when connected to
the output of the URC-200 (V2) Transceiver. This model has been
replaced by the UPA-55 and UPA-55H models and is longer available for
purchase.

UPA-55
50 WATT – FM/AM Power Amplifier
The UPA-55 supplies 50 Watt FM and 50 Watt AM when connected to
the output of the URC-200 (V2) Transceiver.
1-9.8 ANTENNAS
In addition to the antennas shown in this manual, a variety of single, dual and tri-band antennas
are available for operation with the URC-200 (v2) Transceiver. Applications include mobile,
manpack and base station installations. Mounting brackets are supplied in some cases.
1-9.9 OTHER ACCESSORIES
Other accessories include (but are not limited to) the following:

UCB-200, UCB-300, and UCB-500 Carrying Bag
The convenient canvas carrying case is available in woodland
camouflage, black, and desert camouflage, respectively.

PTSH-104
Remote Speaker
Used to remote the transceiver audio.
1-14
SECTION 2. OPERATION
2-1. GENERAL INFORMATION
This section provides information for operating the URC-200 (V2) Transceiver. It includes a
functional description of all operating controls, indicators, and connectors and procedures for setup and operation.
NOTE
Lithium Battery Pre-Conditioning
When using BA-5590/U lithium batteries, General Dynamics C4
Systems recommends that the user consult MIL-B-49430 (ER),
"MIL-SPEC, Batteries, non-rechargeable, Lithium Sulfur Dioxide",
and MIL-B-49430/3D (ER) "MIL-SPEC, Batteries, nonrechargeable, Lithium Sulfur Dioxide BA-5590/U." Particular
attention should be paid to the paragraphs relating to voltage
delay of the BA-5590/U.
It is recommended that the batteries be changed in pairs.
New, unconditioned, lithium batteries may not be able to deliver
the current required to allow the transceiver to transmit in high
power. To condition the lithium batteries the user can, after
installing the new batteries, set the transceiver to low power and
key the transmitter for 20 to 30 seconds, then set the transceiver
to medium power and again key the transmitter for 20 to 30
seconds, the batteries should now be conditioned and capable of
supplying sufficient current to allow the transceiver to transmit in
the high power mode.
2-2. CONTROLS, INDICATORS AND CONNECTORS
The URC-200 (V2) uses a microprocessor to control and display all operating functions. A
key-pad with 12 key switches is used with a Liquid Crystal Display (LCD) to select frequencies
and operating modes for each of the 10 preset channels and to store each channel's operating
parameters. Separate volume and squelch controls are provided to adjust the handset and
loudspeaker audio level and the receiver squelch threshold. The controls, indicators and
connectors shown in Figure 2-1 are explained in Table 2-1. The display and key-pad functions
are shown and explained in Figure 2-2.
2-1
1
6 7
AUDIO
ANT
REMOT
10
Figure 2-1. URC-200 (V2) Front and Rear Panel Controls, Indicators and Connectors
2-2
Table 2-1. Front Panel Controls, Indicators and Connector and Rear Panel Connectors
Find
No.
Controls,
Indicators,
Connectors
Antenna
connector, J3
Liquid Crystal
Display (LCD)
Keypad
VOL/OFF
a) OFF
b) VOL
Type
BNC
7-segment
display
12-pushbutton keypad
Rotary control
with switch
SQ/OFF
Rotary control
with switch
X-mode
J2
HDST
J4
Speaker
Battery
connector J1
(Located on
back-panel)
Battery
connector J5
(Located on
back-panel)
26-pin
connector
10
6-pin audio
connector
Function
Connects VHF/UHF Antenna, threaded sleeve is provided to
securely fasten flexible antenna to the transceiver.
Alpha-numeric display that shows operating modes, frequency,
messages and measurements.
Used to select all operating modes and frequencies.
Full CCW position turns transceiver off.
Continuously variable control adjusts handset and speaker audio
level.
Continuously variable control adjusts squelch threshold in the PT
mode of operation.
Full CCW position turns squelch off.
Squelch is not operational when CT is selected.
Connects transceiver to peripheral devices such as COMSEC
equipment, remote control unit and test equipment.
Handset connector for H-189/GR or H-250/U handset
6-pin battery
connector
Connects transceiver to a power source such as the UBC-100
battery case or UAC-100 AC supply. See Paragraph 1-9 for power
source options.
6-pin battery
connector
Connects transceiver to a power source such as the UBC-100
battery case or UAC-100 AC supply. See Paragraph 1-9 for power
source options.
2-3. KEYPAD AND DISPLAY FUNCTIONS
The following procedures describe how to set-up the transceiver for operation in any of the
possible operating modes. Figure 2-2 shows the display and the key-pad and identifies the key
functions. Each will be discussed in further detail as specific operating modes are described.
2-3
Figure 2-2. Key-pad and Display Functions
2-3.1. NORMAL OPERATING MODE CONFIGURATION PROCEDURES
The transceiver can be used for operation once it has been installed as described in Section
3. The transceiver is fully micro-processor-controlled from push button instructions selected at the
front panel. The frequency is tuned either by selecting one of ten preset channels or by manually
setting up the frequency on the LCD display. The preset frequencies may be stored in memory
and may be changed any time the transceiver is turned on. The memory is maintained using an
EEPROM that allows the presets to be stored even when the power is turned off or the
transceiver batteries are removed. The EEPROM provides non-volatile memory and does not
require the use of a keep-alive-voltage.
In normal operating mode, the display will show the channel currently in use. The receive
frequency and its associated data for that channel will be displayed while the transceiver is in
receive mode. When the PTT is pressed, the transmit frequency and its associated data for that
channel will be displayed. When transmitting, the transmit annunciator (TX) will be on.
If the [R/T] key is pressed while in receive mode, the transmit frequency will be displayed,
but the transceiver will still be receiving on the current channel's receive frequency. This situation
is indicated by a blinking transmit annunciator. Pressing PTT at this point will put the transceiver
in transmit mode, causing the transmit annunciator to come on steadily. When the PTT is
released, the transceiver will go back into receive mode with the receive frequency and data for
this channel being displayed.
2-4
2-3.1.1 Turning on the Unit
Before performing the following steps, refer to Paragraph 2-2 for the location and functional
description of the controls and indicators.
1. Make sure the transceiver set is connected for operation according to the installation
instructions in Section 3.
2. Turn on the transceiver by turning the VOL control clockwise.
3. Set the VOL control for the desired volume (the SQ control must be in maximum counter
clockwise position). To hear audio from the loudspeaker the speaker must be enabled
per Paragraph 2-3.1.4.
4. Adjust the SQ control for the threshold by advancing clockwise slowly, just until the noise
stops. Advancing the control further will reduce the sensitivity of squelch break.
2-3.1.2
Cancellation of Presets
If the transceiver is powered-up while the [MODE] key is pressed, the
transceiver will preset all the channel data for each channel to the default
values (225 MHz, PT, AM, low power). It is this default condition that is used
as the starting point for the following discussions.
2-3.1.3
Front Panel Illumination
LAMP
LAMP
2-3.1.4
Pressing the [LAMP] key Controls the backlighting of the display and
keyboard. Consecutive key strokes cycles through the four levels of brightness
-- off No backlighting), low, medium, and high.
When the transceiver is turned ON, the normal default from the factory is with
the backlighting off.
Select Speaker ON/OFF
SPKR
SPKR
PT MODE
Pressing the [SPKR] key toggles the loudspeaker ON and OFF. When the
[SPKR] key toggles the loudspeaker ON, the SPKR annunciator will appear in
the upper right corner of the display. This is to signify that the loudspeaker has
been turned ON. When the [SPKR] key toggles the loudspeaker OFF, the
SPKR annunciator will disappear.
When the transceiver is turned ON, the normal default from the factory is with
the speaker off.
2-5
2-3.1.5
Select Meter Mode
Pressing the [MODE] key and then the [PWR] key activates the METER
MODE. When the transceiver is in the receive mode, the display becomes a
signal strength meter in the form of a bargraph, indicating the relative strength
of the incoming receive signal. The meter will indicate a single bar at
approximately -115 dBm and be full scale at approximately +3 dBm.
When the transceiver is in the transmit mode (PTT pressed), indicated by the
TX annunciator, the display becomes a power meter. At high UHF frequencies
its accuracy is approximately 1 Watt per bar. As frequency decreases the
power meter may be indicating a decrease in output power. This does not
reflect a true reduction in output power. The true output power will be within
specification across the frequency band.
2-3.2. SETTING PRESET CHANNELS
This section describes how the preset channels are set. The transceiver is initially assumed
to be set-up with the following conditions: low power, AM, plain text (PT), and a frequency of 225
MHz (for both receive and transmit), these are default values that are achieved when the
transceiver is powered-up with the [MODE] key pressed, as described in Paragraph 2-3.1.,
above. The transceiver does not need to be set-up with these default settings; the following
procedure applies for any settings except that the display examples will be different.
2-3.2.1
Select Preset Channels
Pressing the [CH] key and then one of the numbered [n] keys, selects channel
[n], the display shows the frequency and the attributes associated with that
channel. This example shows the key-press sequence for selecting Preset
Channel 1. Any channel from 0 to 9 may be selected.
2-6
2-3.2.2
Select Frequencies
With a channel set-up as above, pressing the [FREQ] key (key-pad [1]) the
transceiver will go into the "enter frequency" mode. The main display is
blanked out except for the channel number (the number shown to the left the
colon). The first digit of the desired frequency (1, 2, or 3) is pressed next and is
displayed to the right of the colon. At this point, the transceiver will still be
receiving on the same frequency as before. As the remaining digits of the
desired frequency are entered, they will be displayed. Pressing the [<--] key
will cause the last digit entered to be erased. If the first digit of the frequency is
erased, the display will go back to showing the current receive frequency for
this channel. When the sixth digit of the frequency is entered, the rest of the
frequency is automatically determined, so the correct frequency is displayed
and the transceiver is set to that frequency. Note that this can be used as a
"manual" receive channel since the new frequency and any other associated
data that has been changed will not be stored in memory until the [STO] key is
pressed. If the Receive mode display is shown, entering the frequency will
change the frequency for both Receive and Transmit frequencies. If the
Transmit mode display is shown, entering the frequency changes only the
Transmit frequency. If a flashing frequency is displayed on the transceiver’s
screen, it may be an indication that an invalid frequency was entered into the
transceiver. Reenter the frequency with a valid frequency.
NOTE
It is possible to enter a frequency in the 30 to 90MHz frequency band
either through the transceiver’s front panel keypad or through the RS-232
ports on the J2 Remote Connector even though the 30 to 90MHz
Enhancement Option is not installed in the transceiver. If a frequency in
this range is entered and the 30 to 90MHz Enhancement Option is not
installed, the frequency displayed on the transceiver’s front panel will flash.
Also, the transceiver’s receiver and transmitter will not respond to the
invalid frequency.
By reentering the frequency with a valid frequency from the keypad or
through the RS-232 ports the flashing display will cease and the
transceiver will return to normal operation.
2-3.2.3
Select Modulation Mode
AM/FM
AM/FM
FM AM
Pressing the [AM/FM] key causes the transceiver to toggle between the AM
and FM modulation modes for the currently-displayed channel. The new value
will take effect immediately, as indicated by the annunciator, but will not be
stored until the [STO] key is pressed. This select automatically applies to both
sides of the preset channel, i.e., if AM is selected for the receive frequency,
the transmit frequency is also AM. If the new modulation is AM and the
transmit power level was MED, the power level will be automatically changed
to HI (there is no AM MED level). If the Receive mode display is shown, the
new modulation will apply to both the Receive and Transmit frequencies. If the
Transmit mode display is shown, the new modulation will apply to the transmit
frequency only.
2-7
2-3.2.4
Select Cipher Text/Plain Text
Pressing the [PCV] key toggles between the plain-text and cipher-text (data)
modes for the currently-displayed channel. The new value will take effect
immediately when the [STO] key is pressed, as indicated by the annunciator.
2-3.2.5
Select Receive/Transmit Data
Pressing the [R/T] key switches the display between the receive frequency and
its operating data for the selected channel and the transmit frequency and data
for that channel.
When the transmit data is displayed, the transmit
annunciator, TX will blink. This key is also used as "back-space" when in the
frequency select mode as described in Paragraph 2-3.2.2.
R/T
TX
2-3.2.6
Storing Presets
Pressing the [STO] key stores into memory the frequencies (receive and
transmit), mode (PT/CT), modulation (AM/FM), transmit power (Tx),
bandwidth, and scan list membership for the selected channel.
STO
AM
LO
2-3.2.7
PT
Select Scan Channels
Pressing the [SCAN] key switches the selected preset channel on or off the
scan list. The scan list must contain from two to ten of the preset channels
before the scan mode can operate. The SCAN annunciator will light to indicate
that this preset channel is on the scan list.
2-8
2-3.2.8
Select Transmit Power Levels
PWR
Pressing the [PWR] key selects the transmit power levels for the transceiver.
The power level annunciator will show the current setting. There are three
power levels, LO, MED, and HI, available in the FM modulation mode and two
power levels, LO and HI, when AM is selected.
FM
LO MED HI
2-3.3. SELECTING SPECIAL MODES
The following paragraphs describe the procedures for special operating modes and
functions of the transceiver. The special operating modes consist of the Beacon-, Guard-, and
Scan-mode of operation. The special functions consist of Self Calibration of Receive Filters,
Internal Voltage Measurements, and Return to Local Control from Remote operation.
2-3.3.1
Select Scan Mode
Pressing the [MODE] key and then the [SCAN] key activates or de-activates
the SCAN MODE. The scan mode causes the transceiver to cycle through the
preset channels which are flagged as "scan channels", (see Paragraph 23.2.7), searching for an active channel I.e., one where incoming signal
strength is sufficiently large to break squelch). While scanning, the display will
show the channel that it is scanning. The transceiver will scan for 0.5 second
on each selected scan channel. If an active channel is found, the transceiver
will lock on that channel. If that channel becomes inactive for approximately
four seconds, the transceiver will continue the scan with the next flagged
channel. If the operator wishes to continue the scan while on a channel that is
(or was) active, the [SCAN] key can be pressed. When an active channel is
found, that channel's receive frequency will be displayed. If the push-to-talk
key (PTT) is pressed while the transceiver is scanning, it will be ignored. If the
PTT is pressed while a channel is active, the transceiver will go out of scan
mode and into the normal mode using that channel, transmitting on that
channel's preset transmit frequency. If the scan list has less than two
channels, then the LCD will blink "Err-noSC" indicating the transceiver cannot
enter the scan mode. To return to normal operation press the [CH] key
followed by one of the 10 channel numbers [0 through 9]. The Scan Mode will
be cancelled and the transceiver will go to the selected channel.
When the scan mode is de-activated normally, by using the [MODE] plus
[SCAN] keys, or by turning the transceiver OFF then ON, the transceiver will
return to normal operation on the channel which was in use immediately prior
to entering the SCAN MODE.
2-9
2-3.3.2
Select Beacon Mode
Pressing the [MODE] key and then the [BCN] key activates or de-activates the
BEACON MODE. When the BEACON MODE is selected, the transceiver
transmits a sweeping emergency audio signal on the selected channel
frequency and in the selected modulation mode (AM or FM). The display
alternately switches between the word "BEACON" and the selected channel
information. No other operating functions are available when the BEACON is
active.
When the beacon mode is de-activated (by toggling the mode off or by
turning the power OFF and then ON), the transceiver will go back into normal
mode using the channel that was in use immediately prior to entering the
BEACON MODE.
2-3.3.3
Internal Voltage Measurements
With the transceiver set-up in the meter-mode per Paragraph 2-3.1.5.,
pressing the [R/T] key will display the voltages of the internal power supplies
and of the batteries. The first time [R/T] is pressed the voltage of the +5Vdc
supply - PS1 is displayed. Each consecutive press of [R/T] brings up the next
supply; PS2: +12Vdc, PS3: -5Vdc, PS4: -12Vdc, PS5: +24Vdc (external power
batteries), PS6: +70Vdc and AGC.
NOTE
The voltages displayed on the front panel are relative voltages. If a
voltage/s appears to be too low or too high, measure the suspected
voltage using a lab type voltmeter. The AGC level displayed is not a
voltage. The AGC level is expressed as a digital value from 000 to 255.
2-3.3.4
Release from Remote Control
Pressing the [MODE] key and then the [R/T] key returns the transceiver to
local control from remote control. This sequence is called Release Remote
Key Sequence (RRKS). This key sequence has no effect if the transceiver is
not in the remote control mode. There is no on-screen indication that the
transceiver is back in local mode.
2-4. ECS-8 8.33 KHZ OPTION
This is the 8.33 kHz tuning increment / channel spacing option. The features of this option are
only available if this option has been installed. If your transceiver has this option installed, refer to
Section 5 for detailed information and operating procedures.
2-10
2-5. OPERATING PROCEDURE
2.5.1 SITING
The transceiver operates in the VHF and UHF frequency bands, these are Line-Of Sight
(LOS) frequencies; therefore, siting of the transceiver greatly affects its operating range. The
longest range is normally obtained when a direct LOS is maintained between the transceivers.
Use of hilltop or tower locations will increase the LOS range. Location in valleys with intervening
hills, behind buildings or in dense woods may reduce or prevent communications. If possible,
avoid locations near electrical interference sources, such as power and telephone lines, radars,
welders and electrical generators.
2-5.1. UNENCRYPTED OPERATION
The following procedure allows unencrypted operation.
1. Attach the VHF/UHF antenna and H-189/GR handset to the transceiver.
2. Turn the transceiver on by rotating the VOL control clockwise.
3. Set the transceiver PT.
4. Set the SQ control to OFF and set the VOL control until noise is heard from the
handset or the loudspeaker If enabled per Paragraph 2-3.1.4).
5. Select operating modes and frequencies per Paragraph 2-3.
6. To transmit, hold the H-189/GR handset Push-To-Talk (PTT) switch down while
talking into the mouthpiece.
7. To receive, release the PTT switch and listen to the handset earpiece or to the
loudspeaker.
8. To eliminate the background noise when no receive signal is present, turn the SQ
control clockwise just until the noise turns off. Adjusting the control further clockwise
reduces the sensitivity of the squelch-break.
2-6. URC-200 (V2) EEPROM LIMITATIONS
The URC-200 (V2) transceivers use the Freescale MC9S08DN60AMLH microprocessor for
control and interface operations of the transceiver. The processor has 2048 bytes of internal
EEPROM that is capable of storing data after the power has been turned off. The EEPROM's
write cycle (an erase followed by a write) is only guaranteed for 100,000 operations. However,
typical operational life at ambient temperatures (approximately +25C) is much greater.
Excessive use of the following commands will result in a reduction in the EEPROM's write
cycle.
2-6.1. FRONT PANEL USER COMMAND LIMITATIONS
The following front panel user commands should be used only as needed.
2-6.1.1 Select Scan Channels
When a preset channel is selected or deselected for the scan list, the preset channel data is
updated. Repeated use of this command may result in defective channel data. (Reference:
Paragraph 2-3.2.7 and Table 3-3, "C" code.
2-6.1.2 Cancellation of Presets
This command is used to initialize all channels to a default configuration (AM, low power,
225 MHz receive and transmit, PT, wideband, and off scan list). (Reference: Paragraph 2-3.1.2
and Table 3-3, "I" code.
2-6.1.3 Select Preset Channels
This command changes the currently selected preset and updates the current preset
channel number in the EEPROM. Excessive use of this command may result in the transceiver
2-11
always starting in preset channel 0 at power up. (Reference: Paragraph 2-3.2.1 and Table 3-3,
"P" code.
2-6.1.4 Storing Presets
This command allows the user to change the stored information for the current preset
channel. (Receive/transmit frequency, and selection of AM or FM. Excessive use of the Q
command may result in defective channel data and/or the transceiver may always start in preset
channel 0 at power up. (Reference: Paragraph 2-3.2.6 and Table 3-3, "Q" code.
2-6.2. ALIGNMENT COMMAND LIMITATIONS
The following alignment commands should be used only as needed.
2-6.2.1 Warp Alignment Command
This is a factory setting used to set the crystal warp. This value should rarely require
adjustment (typically once a year or less often). Excessive use of the warp command may result
in defective crystal operation and/or loss of lock at some or all frequencies and/or the transceiver
will behave as if factory initialization has not been completed. (Reference: Table 3-3, "W" code.
2-7. ERROR MESSAGES
The following eight error messages are produced by the URC-200 (V2) Transceiver and are
displayed on the front panel screen. The displayed error, the error title, and a description of the
error are indicated below in Table 2-2.
Table 2-2. Error Messages
Display
Error Title
Description
Err – bEAC
Beacon Lock Failure
This message indicates that there is no
synthesizer lock on beacon.
Err – EEPr
EEprom Failure
This message indicates that data could not be
written into the EEPROM and that the processor
should be replaced.
Err – FACt
Factory Init Incomplete
This message is produced after the installation
of a newly programmed microprocessor. It
indicates that the initialization has not been
completed for this transceiver.
Err – noSC
Scan Error
This message indicates that an attempt to begin
scanning failed because less than two channels
are selected for Scan mode.
Err – trPr
PA Path Over
This message indicates that the VFWD is below
the calculated threshold value.
Err – UOLt
Voltage Out of Range
This message indicates that the 70 volt supply is
out of its normal range either high (>80 V) or low
(<60 V).
tOO – HOt
Over Temp Error
This message indicates that the transmitter’s
power amplifier temperature is above normal
range. When this alarm condition exists, the
transceiver will automatically reduce the
transmitter power by half until the temperature
returns to normal range.
2-12
SECTION 3. INSTALLATION
3-1. GENERAL INFORMATION
This section contains information necessary for preparing the URC-200 (V2) Transceiver for
use. Included is information on installation of the battery, handset and antenna. Also provided are
connector pin-outs, levels and impedances and computer interface information for remote control
of the transceiver via a RS-232 interface.
3-2. ASSEMBLY AND PREPARATION FOR USE
3-2.1. CHECKING UNPACKED EQUIPMENT
After unpacking it, check the equipment as follows:
1. Inspect the equipment for possible damage incurred during shipment.
2. Check to see that equipment is complete.
3-2.2. INSTALLING OR REPLACING THE BATTERIES
The following batteries may be used in the transceiver:





BA-5390/U
BA-5590B/U
BB-390A/U
BB-590/U
BB-2590/U
Lithium Manganese Dioxide
Lithium Sulfur Dioxide
Nickel Metal Hydride
NiCad
Lithium Ion
Non-rechargable
Non-rechargable
Rechargable
Rechargable
Rechargable
WARNING
DO NOT THROW BATTERIES IN THE TRASH
Dispose of all used batteries in accordance with all Federal, State
and local laws and regulations. Lithium batteries may be used in
the URC-200 (V2) Transceiver however lithium batteries contain
hazardous materials.
Improper
handling,
reverse-current
operation
or
high
environmental temperatures may cause internally generated heat,
fire or toxic materials and gasses to be released from the battery.
The following precautions must be strictly observed to prevent
injury to personnel or damage to equipment:
 DO NOT heat, incinerate, crush, puncture, disassemble or
mutilate the batteries.
 DO NOT recharge primary Non- rechargeable) batteries.
 DO NOT store in equipment during periods of non-use for
more than 30 days.
 DO follow all safety instructions that come with the batteries or
printed on them.
 TURN OFF the equipment immediately if you (1) detect that
the battery compartment is becoming unduly hot, (2) hear battery
cells venting (hissing), or (3) smell irritating sulfur dioxide gas.
Remove the battery only after it is cool (after 30 to 60 minutes),
and dispose of it by following approved procedures.
3-1
NOTE
Lithium Battery Pre-Conditioning
When using BA-5590/U lithium batteries, General Dynamics – C4
Systems recommends that the user consult MIL-B-49430 (ER),
'MIL-SPEC, Batteries, non-rechargeable, Lithium Sulfur Dioxide',
and MIL-B-49430/3D (ER) 'MIL-SPEC, Batteries, nonrechargeable, Lithium Sulfur Dioxide BA-5590/U.' Particular
attention should be paid to the paragraphs relating to voltage
delay of the BA-5590/U.
It is recommended that the batteries be changed in pairs.
New, unconditioned, lithium batteries may not be able to deliver
the current required to allow the transceiver to transmit in high
power. To condition the lithium batteries the user can, after
installing the new batteries, set the transceiver to low power and
key the transmitter for 20 to 30 seconds, then set the transceiver
to medium power and again key the transmitter for 20 to 30
seconds, the batteries should now be conditioned and capable of
supplying sufficient current to allow the transceiver to transmit in
the high power mode.
The battery case holds two batteries. Always use two of the same type battery when
replacing batteries. To replace the batteries, follow these instructions:
1. Turn off the transceiver by turning VOL/OFF control to OFF.
2. Set transceiver face down on the front panel handles.
3. Undo the two latches, located on the side of the transceiver to unlatch the
battery case from the transceiver.
4. Pull the battery case straight up and away from the transceiver.
5. Remove the used batteries from the transceiver by pulling straight up.
6. Plug new batteries into the transceiver.
7. Slide battery case over the batteries and into the rear skirt of the transceiver,
fastening it into place with the two latches.
3-2.3. ATTACHING AND REMOVING THE HANDSET
Attach the handset to the HDST connector. The O-ring seal on the handset may require
considerable exertion before rotating the mating connector clockwise into a locked position.
3-2.4. ATTACHING THE ANTENNA
3-2.4.1 Attaching the Antenna
Before attaching the UVU-100 LOS antenna to the transceiver, verify the ball and swivel joint
at the mounting base of the antenna is free to swivel. If it is not free, then loosen the swivel clamp
ring from the collar ring. These two rings are located at the antenna base. With the ball and
swivel joint free to swivel, screw the antenna to the ANT connector with only the collar ring.
Exercise Extreme Care to prevent the threads on the collar ring from cross-threading with the
threads on the ANT connector. To set the antenna in a vertical position, tighten the swivel joint
clamp ring against the collar ring with the antenna in its proper position. With the swivel joint
clamp ring tightened, DO NOT use the antenna as a lever to cinch the collar ring to the ANT
connector.
3-2
CAUTION
Several conditions must be observed when using the UVU-100
LOS antenna mounted on the transceiver's front panel, as serious
damage to the transceiver may result if high RF power is allowed
to leak into the interior of the transceiver directly from the antenna.
1. Transmit ONLY with the cover of the transceiver securely
fastened in place.
2. Use ONLY vendor supplied power supplies, such as the RF
shielded battery case (UBC-100) or power supply (UAC-100).
3. Use ONLY TEMPEST approved shielded cables to the XMODE connector.
3. Use ONLY TEMPEST approved shielded cables to the XMODE connector.
CAUTION
To comply with RF exposure requirements, a
minimum separation distance of 20 cm (7.9 inches)
is required between the antenna and all persons
while the transceiver is transmitting.
3-2.4.2 Removing the Antenna
To remove the antenna from the transceiver, first loosen the swivel clamp ring to allow the
ball and swivel joint, at the antenna’s mounting base, to freely swivel. Then unscrew the collar
ring from the ANT connector and remove the antenna. With the swivel joint clamp ring tightened,
DO NOT use the antenna as a lever to loosen or remove the collar ring from the ANT connector.
3-3
3-3. REMOTE OPERATION
The Remote Control Unit (RCU) shown in Figure 3-1 can either be a personal computer or it can
be a Remote Terminal Unit (a handset, or a control head connected by a cable of up to 250 ft).
As shown, the RCU is connected in a master/slave relationship to the transceiver and the RCU
always initiates a given command. All commands are sent as a series of ASCII characters over
the RS232 connection.
RCU
RADIO
(MASTER)
(SLAVE)
Figure 3-1. Remote-Control Unit
When first powered up, the RCU sends an ID interrogation code to query what type of radio it is
connected to (what options have been attached). Given this information, the RCU restricts the
type of commands that it can transmit to the transceiver. When the remote command is
recognized by the transceiver as a valid command, the transceiver will enter into the slave mode
(the RCU is the master with the transceiver as the slave). The transceiver will also lock out all
local keyboard inputs (except for the Release Remote Key Sequence, RRKS: [Mode] [R/T])
allowing all commands to come from the RCU.
3-3.1. REMOTE CONTROL INTERCONNECT
3-3.1.1 X-mode Connector
The X-mode pins used for remote-control of the transceiver are:
3-3.1.2
Pin #
Description
Remote Data Out (ASCII data from the transceiver)
Remote Data In (ASCII data to the transceiver)
Ground
Data Rates and Logic Levels
If using HyperTerminal, configure as shown.
3-4
The data rate is 1200 bps 5%. The data code is serial 8-bit ASCII including no parity, one
start bit and one stop bit, no flow control. The logic levels for the three-wire serial interface are as
follows.
Pin #
Description
IMPEDANCE
LOGIC LEVEL
Remote Data Out
Remote Data In
Ground
470 
6.8 k
RS232
RS232
3-3.1.3 Data Exchange Protocol
The RCU initiates all configuration commands and status inquiries to the transceiver using the
RS-232 data communication protocol. Configuration commands control a change of state or a
parameter of the transceiver such as AM/FM or transmit frequency. Status inquiries return
transceiver data such as internal power supply voltage levels.
Each command or inquiry results in a response from the transceiver. If the transceiver receives a
valid command, it performs the command and responds with an ACK reply to the RCU. If the
transceiver receives an inquiry that requires a data response, the data is sent first, followed by
ACK. If the transceiver receives an invalid command, it responds with a NAK reply. In the case
where the transceiver is in manual (keypad) mode and it is commanded to change to the remote
mode, it first responds with HT and then responds to further commands with ACK or NAK.
The ACK, NAK, and HT remote responses are summarized in Table 3-1.
3-5
Table 3-1. Remote Responses
CODE
NAME
ACK
Acknowledge
NAK
HT
No Acknowledge
New
acknowledge
DESCRIPTION
Response from the transceiver to a valid RCU command. If the
command requires data from the transceiver, the data is sent first,
followed by ACK.
Response from the transceiver to an invalid RCU command.
A response from the transceiver indicating that the transceiver was in
the keypad (manual) command mode at the time it received a remote
command. The transceiver changes mode to the remote command
mode and sends HT. This acknowledge is used instead of an ACK for
the first valid remote command received when transceiver was in
keypad command mode.
The RCU cannot send a new command until it receives an ACK/NAK/HT or times out,
whichever occurs first. If the RCU receives a NAK or times out, send the Z command to reestablish sync with the transceiver.
Provisions must be made on the RCU side to poll the status of the transceiver especially in
the over-temp, scan, and synth lock conditions. Another provision that the RCU should make is
that after three (3) NAKs from the transceiver for the same command, the RCU should display an
error code to indicate that an interface problem or an invalid command has occurred.
The RCU (handset or control head) should display the status on its LCD display only after it
has queried the transceiver for data. In this way, the RTU and the transceiver displays will always
agree.
NOTE
To conserve power, the RS232 transmitter in the transceiver is
automatically turned off after an ACK or HT is sent. This
essentially puts the TX in the break state. The remote software
must handle any special interrupts etc. that may occur as a result
of a break.
3-3.2. REMOTE CONTROL CODES
The following tables show the remote control command codes for the URC-200 (V2)
Transceiver. The commands are organized as follows:
 Remote Transceiver Operation Commands
 Transceiver Customizing Commands
 Transceiver Status Inquiry Commands
The codes for the basic transceiver as well as those for the available options are included in
the tables. The available options are:
 30 - 90 MHz extended frequency option, EBN-30
 400 - 420 MHz extended frequency option, EBN-400
 8.33 kHz tuning increment / channel spacing option, ECS-8
Many of the commands are only valid for certain transceiver configurations and frequency
ranges, Table 3-2 provides a mapping of these dependencies. In Table 3-3, the commands
affected by these dependencies are indicated by a reference to “Note 1” below the command. For
example, if the transceiver is equipped with the 30-90 MHz option, AM is not available, but FM,
PT and CT are, including the other parameters in the remainder of the column. Similarly, 8.33
kHz tuning is available only for the 115 - 173.995 MHz and 225 - 399.995 MHz bands.
3-6
3-7
Table 3-2 URC-200 (V2) Operational Frequency-Based Dependencies.
AM
FM
PT
CT
Tone Squelch
(150 Hz)
25 kHz Tuning
12.5 kHz Tuning
30-90 MHz1
PT only
(unless custom
code used)
115 - 173.995 MHz
Y2
225 - 399.995 MHz
400-420 MHz1
N in Aviation Mode)
N in Aviation Mode)
Non-Aviation: Y
Aviation: N (Auto) 4
N in Aviation Mode)
N in Aviation Mode)
NA
5 kHz Tuning
8.33 kHz Tuning1
NA
NA
RX IF Filter1,3
Selectable
(AM PT)
Pre/De-Emphasis
(132-173.995 MHz)
(FM PT)
5, 1, or 0.15 Watts 10, 5, or 0.1 Watts
10, 5, or 0.1Watts
10, 5, or 0.1Watts
FM RF Output
Power
NA
10 or 5 Watts
10 or 5 Watts
NA
AM RF Output
Power
Indicates an option.
Transceiver operates over full band, but spec is guaranteed from 115 - 149.995 MHz only.
The 8.33 kHz filter only applies to 117.975 – 136.975 MHz.
(Auto). Indicates that as you enter the frequency, an 8.33 or 25 kHz channel is selected and the
correct filter is automatically selected, depending on the value entered.
3-8
Table 3-3. Remote Transceiver Operation Commands
CODE
NAME
Zap
Squelch Control
Channel Initialization
DESCRIPTION
Command sent to the transceiver to disregard
the current remote command (or partial
command) and re-sync. Transceiver will
ACK/HT
The "$" Command followed by three digits in
the following format will adjust the remote
squelch.
“$xxx”
where:
‘xxx’ = a decimal number from 000–255.
When in remote mode, the transceiver uses
the remote squelch value rather than the
squelch knob setting. The remote value is
initialized to the knob value when a remote
session is initiated.
Initializes all channels to the default values
(AM, PT, low power, 225 MHz, Wideband (25
kHz), Aviation Mode Off).
EQUIVALENT
TRANSCEIVER
KEYPAD COMMAND
None)
(There is no equivalent
keypad response for the
$ Command. The $
Command is equivalent
to the SQUELCH Control
on the Transceiver’s front
panel, see Paragraph
2-3.1.1-4)
Press
MODE
and turn ON transceiver
(See Paragraph 2-3.1.2)
Lamp Control
Speaker On/Off
Preset Channel
Select
The “L” Command followed by a 0, 1, 2, or 3
will select the intensity of the transceiver’s
display backlighting
"L0" = Lamp Off
"L1" = Lamp Low
"L2" = Lamp Med
"L3" = Lamp Hi
The “J” Command followed by a 0 or 1 will
select whether the transceiver’s internal
speaker is OFF or ON.
"J0" = Speaker Off
"J1" = Speaker On
The "P" Command selects the preset channel
to be displayed and used.
The "P" Command followed by a decimal digit
from 0 to 9 will select the preset channel.
"P0" = Channel 0
"P1" = Channel 1
"P9" = Channel 9
LAMP
(See Paragraph 2-3.1.3)
SPKR
(See Paragraph 2-3.1.4)
CH
BCN
FREQ
(See Paragraph 2-3.2.1)
3-9
Table 3-3. Remote Transceiver Operation Commands (Cont)
CODE
NAME
Receive Frequency
Note 1
DESCRIPTION
The "R" Command sets the receive frequency
value for the current preset channel.
The “R” Command followed by 6 digits will
define a receive frequency value. The 7th digit
is automatically determined by the transceiver.
The ‘x’ values, along with the 7th digit, must be
divisible by 25 kHz, 12.5 kHz, or 5 kHz.
"Rxxxxxx" = receive frequency
Transceivers with the EBN-30 Option, for the
30-90 MHz band, the first digit following the “R”
Command will be a "0" which is then followed
by 5 digits to define the receive frequency
value. The 7th digit is automatically determined
by the transceiver. The ‘x’ values, along with
the 7th digit, must be divisible by 25 kHz or 12.5
kHz.
“R0xxxxx” = receive frequency for the 30-90
Band
Transceivers with the EBN-400 Option, for the
400-420 MHz band, the first digit following the
“R” Command will be a "4" which is then
followed by 5 digits to define the receive
frequency value. The 7th digit is automatically
determined by the transceiver. The ‘x’ values,
along with the 7th digit, must be divisible by
25 kHz, 12.5 kHz, or 5 kHz.
“R4xxxxx” = receive frequency for the 400-420
Band
3-10
EQUIVALENT
TRANSCEIVER
KEYPAD COMMAND
BCN
FREQ
0-9
XXX
(ENTER 6 DIGITS)
Note: When using the
keypad to input the
receive frequency, the
transmit frequency is also
entered simultaneously.
(See Paragraph 2-3.2.2)
Table 3-3. Remote Transceiver Operation Commands (Cont)
CODE
NAME
DESCRIPTION
Transmit Frequency
The “T” Command sets the transmit frequency
value for the current preset channel.
Note 1
The “T” Command followed by 6 digits will
define a transmit frequency value. The 7th digit
is automatically determined by the transceiver.
The ‘x’ values, along with the 7th digit, must be
divisible by 25 kHz, 12.5 kHz, or 5 kHz.
"Txxxxxx" = transmit frequency
Transceivers with the EBN-30 Option, for the
30-90 MHz band, the first digit following the “T”
Command will be a "0" which is then followed
by 5 digits to define the transmit frequency
value. The 7th digit is automatically determined
by the transceiver. The ‘x’ values, along with
the 7th digit, must be divisible by 25 kHz or 12.5
kHz.
“T0xxxxx” = transmit frequency for the 30-90
Band
EQUIVALENT
TRANSCEIVER
KEYPAD COMMAND
R/T

BCN
FREQ
0–9
XXX
(ENTER 6 DIGITS)
(See paragraphs 2-3.2.5
and 2-3.2.2)
Transceivers with the EBN-400 Option, for the
400-420 MHz band, the first digit following the
“T” Command will be a "4" which is then
followed by 5 digits to define the transmit
frequency value. The 7th digit is automatically
determined by the transceiver. The ‘x’ values,
along with the 7th digit, must be divisible by
25 kHz, 12.5 kHz, or 5 kHz.
“T4xxxxx” = transmit frequency for the 400-420
Band
Modulation Mode
Note 1
TRANSMIT/RECEIVE
Note 1
Modulation Mode
TRANSMIT only
The “M” Command followed by a 0 or 1 will
select the transmit and receive modulation
mode that is to be displayed and used.
"M0" = TRANSMIT/RECEIVE AM
"M1" = TRANSMIT/RECEIVE FM
The “N” Command followed by a 0 or 1 will
select only the transmit modulation mode that
is to be displayed and used.
"N0" = TRANSMIT AM
"N1" = TRANSMIT FM
AV
AM/FM
(See Paragraph 2-3.2.3)
R/T

AV
AM/FM
(See paragraphs 2-3.2.5
and 2-3.2.3)
3-11
Table 3-3. Remote Transceiver Operation Commands (Cont)
CODE
NAME
Text Mode
Note 1
DESCRIPTION
The “X” Command followed by a 0 or 1 will
select between PT (Plain Text, Voice) and CT
(Cipher Text, Data).
"X0" = Plain Text (PT)
"X1" = Cipher Text (CT)
EQUIVALENT
TRANSCEIVER
KEYPAD COMMAND
PT/CT
(See Paragraph 2-3.2.4)
(Returns a NAK if in Aviation Mode)
For transceivers with the EBN-30 and/or the
UPL-100 Option: If the 150Hz Tone Squelch is
activated the transceiver will revert to the Plain
Text (PT) mode only.
Store Function
The “Q” Command will store the entered data
in EEPROM for the current preset channel.
STO
(See Paragraph 2-3.2.6)
Scan list member
The “C” Command followed by a 0 or 1 will
select whether the current preset channel is
ON or OFF the Scan List.
"C0" = OFF the scan list
"C1" = ON the scan list
SCNLST
SCAN
(See Paragraph 2-3.2.7)
Power Level Setting
Note 1
Scan Mode
The “#” Command followed by a 0, 1, or 2 will
select the transmitter’s output power for the
current preset channel.
"#0" = FM: Lo power, AM: Lo power
"#1" = FM: Med power, AM: Hi power
"#2" = FM: Hi power, AM: Hi power
The “S” Command followed by a 0 or 1 will
place the transceiver in the Scan Mode.
"S0" = Scan Mode Off
"S1" = Scan Mode On
Note, if the scan list has less than two preset
channels, the transceiver will return a "NAK".
Only Inquiry Command ?02 is available during
the scan operation.
PWR
METER
(See Paragraph 2-3.1.5)
MODE
SCNLST
SCN
(See Paragraph 2-3.3.1)
Beacon Mode
The “*” Command followed by a 0 or 1 will
place the transceiver in the Beacon Mode.
"*0" = Beacon Mode Off,
"*1" = Beacon Mode On
BCN
FREQ
(See Paragraph 2-3.3.2)
3-12
Table 3-3. Remote Transceiver Operation Commands (Cont)
CODE
NAME
Keypad Control
DESCRIPTION
When in the Remote Mode, the “+” Command
remotely re-enables the keypad.
EQUIVALENT
TRANSCEIVER
KEYPAD COMMAND
MODE
R/T

(See Paragraph 2-3.3.4)
Transmit Command
Receive Mode
The “B” Command sets the transceiver into the
transmit mode from the receive mode.
None)
Note, to set the transceiver back to the receive
mode, use the "E" Command as described
below.
The “E” Command returns the transceiver from
the transmit mode back to the receive mode.
None)
Note, to set the transceiver into the transmit
mode, use the "B" Command as described
above.
The following command applies to transceivers with the EBN-30 Option, 30-90 MHz Band Enhancement
150 Hz Tone Squelch
Note 1
This command is only effective for 30 - 90 MHz
range frequencies.
Transceivers with the EBN-30 Option, for the
30-90 MHz band, the “>” Command followed
by a 0, 1, 2, or 3 will enable/disable the 150
tone squelch.
“>0” = Turns OFF the 150 Hz tone squelch for
both receive and transmit.
“>1” = Turns ON the 150 Hz tone squelch for
receive only.
“>2” = Turns ON the 150 Hz tone squelch for
transmit only.
“>3” = Turns ON the 150 Hz tone squelch for
both receive and transmit.
CH/BW
TONE
Transceivers with the UPL-100 Option, Private
Line (PL), will note that if the Private Line tone
is currently ON, the “>” Command will return a
"NAK".
Note 1 – Please see Table 3-2 (Operational Frequency-Based Dependencies) for restrictions.
3-13
Table 3-4. Transceiver Customizing Codes
CODE
NAME
Transceiver’s Internal
Speaker
Transceiver’s Front
Panel Backlighting
Squelch Control
when in the CT mode
Scan Control
Delay and Timing
Parameters
DESCRIPTION
The “e” Command followed by the appropriate two decimal digits will set
the state of the transceiver’s internal speaker upon turn ON of the
transceiver.
“e00” = Speaker is OFF at transceiver turn ON (default)
“e01” = Speaker is ON at transceiver turn ON
The “e” Command followed by the appropriate two decimal digits will set
the intensity of the backlighting on the transceiver’s front panel keyboard
and display upon turn ON of the transceiver.
“e10” = Backlighting OFF (default)
“e11” = Backlighting at intensity level 1 (low)
“e12” = Backlighting at intensity level 2 (medium)
“e13” = Backlighting at intensity level 3 (high)
The “q” Command followed by the appropriate three decimal digits will set
the state of the CT squelch.
“q020” = CT squelch is always broken. The Squelch Control has no effect.
(default)
“q021” = CT squelch is broken by the signal level as controlled by the
Squelch Control.
Notes:
1. The Squelch Control can be either the front panel SQUELCH Control
or the remote squelch as controlled by the “$xxx” command.
2. PT squelch is unaffected by the “qxxx” command.
The “q” Command followed by the appropriate three decimal digits will set
the state of the Scan function.
“q030” = Scanning stops upon completion of a transmission. (default)
“q031” = Scanning resumes upon a completion of a transmission.
xx = 00 to 01 yyy = 000 to 255. xx = device number yyy = device value
Device descriptions:
00: DVI Shutdown Time (Obsolete)
01: PTT Check Squelch Delay
Specifies the amount of time In 10 ms units) to wait before checking
squelch after entering receive mode following a PTT release. Example:
^01060 sets delay to 600 msecs.
Aviation Mode
Wideband vs.
Narrowband selection
Initializes all channels to the default values including Aviation Mode
On(AM, PT, low power, 225 MHz, Wideband 25 kHz, Aviation Mode On).
<1: Enable Wideband Filter If “833 authorized” option is enabled.
<2: Enable Narrowband Filter If “833 authorized” option is enabled. Returns
a NAK if “833 authorized” option is not enabled.
3-14
Table 3-5. Transceiver Status Inquiry Commands
CODE
NAME
DESCRIPTION
?01
Synth Lock/Unlock
?02
Channel Scan Detect
?03
Receive Sig Strength
?04
Calibration Status
?05
Power Supply Status
?06
VFWD Status
?07
VRFD Status
?08
SW Version
The transceiver will respond to whether its synthesizer is in a lock or unlock
condition.
"A0" = synthesizer is unlocked
"A1" = synthesizer is locked
This inquiry is used to determine whether or not squelch has been broken
during scan mode. If so, the channel number is identified.
"Q0" = Channel 0 detected during scan
"Q1" = Channel 1 detected during scan
"Q9" = Channel 9 detected during scan
"QN" = No channel currently detected
Note:
This is the only inquiry command allowed while in the Scan mode.
The transceiver will respond to the value of the SQ CL, which represents
the signal strength of a received signal.
"Nxxx" – where 'xxx' = a decimal value (000-255) representing the signal
strength.
The transceiver will respond with the status of the tuning procedure.
H0 if calibration is not complete.
H1 if calibration is complete.
The transceiver will respond with the decimal values of the power supplies
(without the decimal points).
"Vaaabbbcccdddeeefff" – where:
'aaa' = the +5 Vdc reading (a.aa)
'bbb' = the +12 Vdc reading (bb.b)
'ccc' = the -5 Vdc reading (c.cc)
'ddd' = the -12 Vdc reading (dd.d)
'eee' = the +24 Vdc reading (ee.e)
'fff' = the +70 Vdc reading (ff.f)
The transceiver will respond by sending back the value of the VFWD read.
"Zxxx" – where 'xxx' = the decimal value
The transceiver will respond by sending back the value of the VRFD read.
"Ixxx" – where 'xxx' = the decimal value.
The transceiver will respond by sending back a value representing the
software version followed by the date and time of compilation.
"Ux" – 'U' represents the URC-200 (V2) version and 'x' represents the Rev
level followed by the date and time as follows: "tr cccccccccc Vervv ‘Mmm
dd yyyy hh:mm:ss’ “
= Radio type (‘V’ = urc200/500)
= Revision level.
ccc… = Control drawing number Ie: 98-P41135F)
vv
= Version number.
mmm = Month (Jan, Feb, …)
?09
Squelch Level Setting
dd
= Day.
yyyy = Year.
hh
= Hour.
mm = Minute.
ss
= Second.
The value of the squelch setting of the transceiver. This command returns
the front panel control setting or the remote setting depending on whether
the transceiver is in local or remote at the time the inquiry is sent.
"$xxx" – where 'xxx' is a decimal number from 0 to 255.
3-15
Table 3-5. Transceiver Status Inquiry Commands
CODE
NAME
DESCRIPTION
?10
Current Preset Status
?11
General Status
?12
General Mode Status
?13
Squelch Status
?14
Warp Value
Gives status of the various values of the current preset.
"Txxxxxxx" = Transmit Frequency
"Rxxxxxxx" = Receive Frequency
"Mx" – AM/FM – TRANSMIT/RECEIVE
“M0” = TRANSMIT/RECEIVE AM
“M1” = TRANSMIT/RECEIVE FM
"Nx" – AM/FM – TRANSMIT only
“N0” = TRANSMIT AM
“N1” = TRANSMIT FM
"Cx" – SCAN LIST ON/OFF
“C0” = Not on scan list
“C1” = On scan list
"Px" – PRESET NUMBER
"#x" – Power Level
“#0” = Lo Power
“#1” = Med Power
“#2” = High Power
Gives the general status of the transceiver in the form : “XxJjLldyFfvzzz”
"Xx" – PT/CT
“X0” = PT
“X1” = CT
"Jx" – SPEAKER OFF/ON
“J0” = Speaker OFF
“J1” = Speaker ON
"Lx" – LAMP OFF/LO/MED/HI
“L0” = Lamp Off
“L1” = Lamp Lo
“L2” = Lamp Med
“L3” = Lamp Hi
"dx" – Option Status
"d0" - no options
"d1" - PL option selected
"d2" - 30_90 option selected
"d3" - both PL and 30_90 option selected
"d4" - 420 option selected
"d5" - both PL and 420 option selected
"d6" - both 30_90 and 420 option selected
"d7" - all three options selected
"Fx" – Overtemp Condition
“F0” - Temperature OK
“F1” - Overtemp Condition
zzz = 000 if no options are selected
= 001 to 255 depending on the options enabled (see the ‘d’ cmd..
Gives the mode of the transceiver with one of the codes shown below. This
will indicate whether it is in the Beacon, normal receive, or transmit mode.
"*1" = Beacon mode
"U0" = Receive mode
"U1" = Transmit mode
"[0" = Transceiver Squelched
"[1" = Transceiver Squelch Broken
Returns the current warp value in the following format:
"Wxxx"
where:
‘W’ = Warp and
'xxx' = the current Warp value
3-16
Table 3-5. Transceiver Status Inquiry Commands
CODE
NAME
DESCRIPTION
?15
Crystal Values
?16
Power Level Values
?17
Tuning Filter Value
Value is returned in the form: "%xxyyzzaa"
See “%” remote command.
Returns the value in the form: "&aaabbbcccdddeeefffggghhhiiijjjkkk"
aaa = AM Low value.
bbb = AM High value.
ccc = FM Low value.
ddd = FM Medium value.
eee = FM High value.
fff = AM high value at 115 MHz.
ggg = AM high value at 152 MHz.
hhh = AM high value at 174 MHz.
iii = AM high value at 225 MHz.
jjj = AM high value at 400 MHz.
kkk = AM high value at 420 MHz.
Returns the value of the tuning filter pot. "}nnn" is the value returned where:
‘nnn’ = a value from 0 - 255.
?18
?19
Reserved
30_90 Tone
?20 to
?70
?71
?72
?73
Deviation Values
Non-VP)
Flat Slope Status
5 kHz Spacing
Startup Enable
Values
?74
Transceiver Control
Modes
?75
Timing and Delay
Parameters
Returns the value in the form ">n"
n = 0 if receive and transmit tones are off.
= 1 if 150 Hz receive-tone is on.
= 2 if 150 Hz transmit-tone is on.
= 3 if both receive and transmit tones are on.
Returns the value in the form “Fxxx”
xxx = current value of that variable.
Returns "fx" where ‘x’ = 0 if no flat slope and ‘x’ = 1 if flat slope is set.
Return the value in the form: “nx”
x = 0 if 5 kHz spacing is disabled.
X = 1 if 5 kHz spacing is enabled.
Returns the startup enable values as shown below:
“e.0a.1b” -- where:
a = 0 if speaker is off.
= 1 if speaker is on.
b = 0 if display lamp is off.
= 1 if display lamp is at intensity level 1.
= 1 if display lamp is at intensity level 2.
= 1 if display lamp is at intensity level 3.
Value is returned in the form: “q.00a.01b.02c.03d”
a = 0 if transceiver in old RF card mode.
= 1 if transceiver in new RF card mode.
b = 0 if PT & CT are channel specific.
= 1 if PT & CT are global.
c = 0 if CT squelch control is static.
= 1 if CT squelch control is dynamic.
d = 0 if scan stops after a PTT press/release.
= 1 if scan continues after a PTT press/release
Value is returned in the form: “^.00aaa.01bbb”
aaa = DVI Shutdown Time (obsolete)
bbb = PTT Squelch Delay In 10 ms units)
3-17
Table 3-5. Transceiver Status Inquiry Commands
CODE
NAME
?76
Squelch Detect
Parameters
DESCRIPTION
?77 to
?79
?80 to
?85
?86
Reserved
Deviation Values
(VP)
Read PA-PATH
discrete
?87
Read muxed analog
values
?88
Read analog values
?89
Aviation Mode
?90
Receiver Filter
Bandwidth Selection
Debug Inquiry
?99
Value is returned in the form: “w.0aaa.1bbb.2ccc .3ddd.4eee.5fff”
aaa = 30 to 90 MHz squelch level scalar
bbb = Carrier level slope scalar
ccc = Noise level slope scalar
ddd = Squelch level offset
eee = Squelch pot slope scalar
fff = Squelch threshold offset
Returns the value in the form “Fxxx”
xxx = current value of that variable.
Return values in the from: “Dx”.
x = 0 if PA-PATH discrete low,
x = 1 if PA-PATH discrete high.
Returns value in the form: “abbbcccdddeeefff”
bbb = CAL_DET_CTRL,
ccc = B3_CAL_DET_CTRL,
ddd = B3_LOCK_DET_CTRL,
eee = B3_TONE_DET_CTRL,
fff = LOCK_DET_CTRL.
Returns value in the form: “bxxxcccdddeeefff”
xxx = A2D_OVERTEMP,
ccc = A2D_VOL_POT,
ddd = A2D_SQL_NL,
eee = A2D_SQL_CL,
fff = A2D_SQL_POT.
Returns value in the form: “!”
n=0 Disable Aviation Mode
n=1 Enable Aviation Mode
Returns value in the form: “" command in the
Transceiver Adjustment Commands. Returns ">n" where ‘n’ = 0 for
unsquelched, and ‘n’ = 1 for squelched.
3-4. INTERFACE CHARACTERISTICS
Figure 3-2 shows interface connector locations for the URC-200 (V2). The following tables list the
interface characteristics of the voltages and signals of the URC-200 (V2) power, HDST, and Xmode connectors, respectively. Connector reference designation and connector part numbers are
given in each table title. Table 3-10 provides part identification data for each connector.
Table 3-6. Power Connector J1 (CA110821-1) Pin Characteristics
PIN
FUNCTION
12V Battery 1 - Negative / Transceiver Ground for External Power Source
3-18
2
12V Battery 2 - Negative
No Connection for Lithium Battery, Grounded in a NiCad Battery.
12V Battery 1 - Positive
12V Battery 2 - Positive / +24 V transceiver power from External Power Source
No Connection
3-19
Table 3-7. Power Connector J5 (CA110821-1) Pin Characteristics
PIN
FUNCTION
12V Battery 1 - Negative / Transceiver Ground for External Power Source
12V Battery 2 - Negative
No Connection for Lithium Battery, Grounded in a NiCad Battery.
12V Battery 1 - Positive
12V Battery 2 - Positive / +24 V transceiver power from External Power Source
No Connection
Table 3-8. Handset Connector J4 (GC283F-1-050) Pin Characteristics
PIN
FUNCTION
GND - Ground
PT OUT. Adjustable from 0 to approximately 6.0 V Peak into 600 
PTT-N. Push-to-Talk, . Ground to Transmit
PT IN. 1 mV nominal for full modulation into 150  load.
Connected to pin B. (See Pin B)
Squelch. Receiver Squelch Output for RETRANSMIT, 0 TO +5v, 100 k pull-up to
+5Vdc. Logic gate output with a 50  series resistor.
3-20
Table 3-9. X-MODE Connector J2 (MS3114E16-26S) Pin Characteristics
PIN
Signal Label
Function
Impedance
Level
TX AUDIO – PLAIN TEXT (VOICE)
PT IN
Plain Text (Voice) Input
150 
1 mV RMS
GND
Ground, Audio
GND
GND
HI LVL PT IN
Hi-Level PT In, Bal.
600 
0.77 V RMS
HI LVL PT IN RTN
Hi-Level PT In, Bal.
2 M to Ground
0.77 V RMS
RX AUDIO – PLAIN TEXT (VOICE)
PT OUT
Plain Text (Voice)
Output
600 
0 V to approximately
6V Peak
GND
Ground, Audio
GND
GND
REM PT OUT
Plain Text Output, Bal.
600 
5.5 V RMS @ Max.
Mod.
REM PT OUT
RTN
Plain Text Output, Bal.
Balanced
5.5 V RMS
TX CIPHER TEXT (CT) - DATA
CT IN
Cipher/Data Input
GND
Ground, Audio
GND
RS232
GND
RX CIPHER TEXT (CT) - DATA
CT OUT
Cipher Text Output
GND
Ground, Audio
RS232
GND
GND
10 k to +5V
RCV: +5 V
TX KEY LINE - PUSH-TO-TALK (PTT)*
PTT-N
Push-To-Talk Input,
XMT: GND
Ground to Transmit
GND
Ground, Audio
GND
GND
or
GND-SIGNAL
DC Ground
RS-232 REMOTE
RS232 TX
Remote Control Output
470 
RS232
RS232 RCV
Remote Control Input
6.8 k
RS232
GND-SIGNAL
DC Ground
ON/OFF REMOTE
ON/OFF
Remote Power On/Off
+24 V @ 7 mA.
(Source)
ON/OFF RTN
Remote Power On/Off
+24 V @ 7 mA. Input)
3-21
Table 3-9. X-MODE Connector J2 (MS3114E16-26S) Pin Characteristics (Continued)
PIN
Signal Label
Function
Impedance
Level
OTHER REMOTE LINES
PT/CT CTRL
Plain Text/Cipher Text
Control
PT - Open
CT - Ground
UHF/VHF-N
Amplifier Control
HI = UHF
FM/AM-N
Amplifier Control
HI = FM
GND-SIGNAL
DC Ground
150 k
24Vdc OUTPUT VOLTAGE
+24VX
+24 Vdc Output
GND-SIGNAL
DC Ground
Battery or Power Source
30 VDC Maximum,
500 mA Maximum
Drain
or
GND-CHASSIS
Chassis Ground
GND
HI = Squelched
SQUELCH OUTPUT
SQUELCH
GND-SIGNAL
DC Ground
or
GND-CHASSIS
Chassis Ground
GND
SPARE
GROUNDS
GND-CHASSIS
Chassis Ground
GND
Ground, Audio
GND-SIGNAL
DC Ground
GND
GND
GND
* The standard PTT configuration is 5-wire. A 4-wire configuration is available. Please contact
General Dynamics C4 Systems Customer Service for further information.
3-22
Connector
Number
Name
J1
Power
J2
X Mode
J3
Table 3-10. URC-200 (V2) Connector Identification
NHA
Next Higher
Reference
Part Number
Assembly
Designator
Mating Connector
CA110821-1
30-P35832M
P1
44249-6S HIRELCO
MS3114E16-26S
01-P35780M
J3
MS3116J16-26P
Ant
3204-7388-10
30-P35833M
P1
STD BNC (Male)
J4
Handset
GC283F-1-050
01-P35780M
J2
GC329/U
J5
Power
CA110821-1
30-P35332M
P1
44249-6S HIRELCO
Figure 3-2. URC-200 (V2) Interfaces
3-23
SECTION 4. SYSTEM MAINTENANCE
4-1. GENERAL INFORMATION
This section provides a system-level performance test to check all operations of the URC200 (V2) Radio Set. The following are also provided:
 Procedures to localize a malfunction to a defective module.
 Procedures for removal and replacement of all replaceable modules.
 List of required tools and test equipment.
NOTE
This section does not include system-level performance tests to
check the various URC-200 (V2) options listed in Paragraph 1-8 of
Section 1.
4-2. MANUAL SYSTEM TEST
The manual system test checks the operating parameters of the URC-200 (V2) under test,
using Motorola's Communications System Analyzer (R2600 series) as the primary test
equipment.
CAUTION
To comply with RF exposure requirements, a
minimum separation distance of 20 cm (7.9 inches)
is required between the antenna and all persons
while the transceiver is transmitting.
4-2.1. TEST EQUIPMENT REQUIRED
Testing and troubleshooting the transceiver requires the test equipment listed in Table 4-1. If
a R2600 Communications System Analyzer is not available, the alternate test equipment listed in
Table 4-2 may be substituted to perform its functions. A schematic diagram for the breakout box
is shown in Figure 4-4 at the end of the section.
Table 4-1. Test Equipment Required
Qty.
Description
Power Supply, 28 Vdc, 5A
Communications System Analyzer
Breakout Box For X-MODE Connector
Current Meter
Part No.
HP-6291 A
R2600
HP-428B
Supplier
Hewlett-Packard
General Dynamics
Hewlett-Packard
NOTE
 Verify the test equipment has been calibrated.
 When verifying the various test measurements against the
operating parameters as listed in Table 1-1, take into
consideration the accuracy of the test equipment being used.
Table 4-2. Alternate Test Equipment
Qty.
Description
Frequency Counter
Signal Generator
Distortion Analyzer
Part No.
HP-5383A
HP-8640B
HP-334A
4-1
Supplier
Hewlett-Packard
Hewlett-Packard
Hewlett-Packard
Table 4-2. Alternate Test Equipment
Qty.
Description
Digital Voltmeter
RMS Voltmeter
30 dB, 100-Watt Power Attenuator
3 dB Power Attenuator
Part No.
HP-3465A
HP-3400A
769-30
766-3
Supplier
Hewlett-Packard
Hewlett-Packard
Narda
Narda
Table 4-2. Alternate Test Equipment (Cont)
Qty.
Description
Power Meter
Modulation Meter
Audio Oscillator
Oscilloscope
Power Supply, 28 Vdc, 5A
Breakout Box For X-MODE Connector
Current Meter
Part No.
HP-436A
HP-8901 A
HP-201 C
465
HP-6291A
HP-428B
Supplier
Hewlett-Packard
Hewlett-Packard
Hewlett-Packard
Tektronix
Hewlett-Packard
Hewlett-Packard
4-2.2. RECEIVER TESTS
WARNING
DO NOT THROW BATTERIES IN THE TRASH
Dispose of all used batteries in accordance with all Federal, State
and local laws and regulations. Lithium batteries may be used in
the URC-200 (V2) Transceiver however lithium batteries contain
hazardous materials.
Improper
handling,
reverse-current
operation
or
high
environmental temperatures may cause internally generated heat,
fire or toxic materials and gasses to be released from the battery.
The following precautions must be strictly observed to prevent
injury to personnel or damage to equipment:
 DO NOT heat, incinerate, crush, puncture, disassemble or
mutilate the batteries.
 DO NOT recharge primary Non- rechargeable) batteries.
 DO NOT store in equipment during periods of non-use for
more than 30 days.
 DO follow all safety instructions that come with the batteries or
printed on them.
 TURN OFF the equipment immediately if you (1) detect that
the battery compartment is becoming unduly hot, (2) hear battery
cells venting (hissing), or (3) smell irritating sulfur dioxide gas.
Remove the battery only after it is cool (after 30 to 60 minutes),
and dispose of it by following approved procedures.
The following tests evaluate the performance of the receiver circuits. The functions that will
be tested are receiver sensitivity and distortion at various frequencies in AM and FM, and in CT
and PT modes. Squelch sensitivity will also be checked. If the transceiver fails any of the tests, or
if it cannot be adjusted to specified values, it must be sent to General Dynamics C4 Systems for
repair.
4-2.2.1 FM PT Sensitivity and Distortion
1. Set up the test equipment as shown in Figure 4-1. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin E (PT
OUT) of the Breakout Box. Pin A or D of the remote connector is return
ground.
2. Set the input power supply to 28  0.1 Vdc.
4-2
Figure 4-1. Receiver Test Equipment Setup
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 01.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Using the CURSOR POSITION keys move to the Monitor Frequency position and
enter 115.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 115.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (Synthesizer Format Select) and select the
"Tone A" softkey.
k. Move the cursor to Freq (Frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
4-3
m. Use Table 4-3 to program the frequency presets in steps D and F above.
n. Press the "return" softkey.
Table 4-3. FM Frequency Presets
Preset
URC-200 (V2)
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH0
R2600
CH01
CH02
CH03
CH04
CH05
CH06
CH07
CH08
CH09
CH10
Frequency
MHz
115.000
145.025
173.975
225.075
275.000
299.975
300.000
312.000
355.000
399.975
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the "GEN"
softkey.
b. Move the cursor to the Output Lvl (RF Output Level) position and enter a level of 050.0 dBm from the keypad.
c. Move the cursor to the Gen RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 6.50 kHz from the keypad. Note: This is FM deviation.
Depress the RIGHT ARROW CURSOR CONTROL key and depress the "Cont"
(Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "AC VOLTS" softkey.
h. Move the cursor to the Range position and depress the "AUTO" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trigger Lvl (Trigger Level) position and enter 500 from the
keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
n. Move the cursor to the Vert (Vertical) position and depress the "1 V" softkey.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
4-4
b. Set the frequency presets as listed in Table 4-3 on the URC-200 (V2). For each preset
channel, adjust the URC-200 (V2) for the following. Note: Information on presetting the
URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this manual.
FM, PT, SCN OFF, BCN OFF,
6. On the R2600, do the following:
a. Verify the "AC VOLTS" is on in the Meter position of the DISP (Display) segment.
b. Verify the "AUTO" is on in the Range position of the DISP (Display) segment.
c. Set the presets on both the URC-200 (V2) and the R2600 to channel 01. Adjust the
Volume control on the URC-200 (V2) to give an output level of 1.0 Vac 0.1 Vac as
read on the R2600 display.
d. Receiver FM PT Sensitivity Measurement: Move the cursor to the Meter position and
depress the "SINAD" softkey. Depress the RF key on the R2600 panel and move the
cursor to the Output Lvl (RF Output Level) position. Position the highlight to the onetenth position by depressing the RIGHT ARROW CURSOR POSITION key three
times. Rotate the TUNING control counter-clockwise on the R2600 panel until an
average of 10 dB of SINAD is read on the CRT display. Verify compliance with Table
1-1 located in Section 1 of this manual.
e. Readjust the Output Lvl back to -50 dBm by rotating the TUNING control clockwise to
-50 dBm. This can also be accomplished by moving the highlight back to the beginning
of the Output Lvl position by using the CURSOR CONTROL keys and then entering 50 dBm on the keypad.
f. Receiver FM PT Distortion Measurement: Depress the DISP (Display) and move the
cursor to the Meter position. Depress the "EXT DIST" (External Distortion) softkey. The
FM PT Distortion is displayed in percent in the Display area of the CRT screen. Verify
compliance with Table 1-1 located in Section 1 of this manual.
g. On both the URC-200 (V2) and the R2600 repeat steps A through F for preselect
channels 2 through 9 and channel 0 on the URC-200 (V2) with the R2600 set on
preset channel 10.
4-2.2.2 FM CT Sensitivity
1. Set up the test equipment as shown in Figure 4-1. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin T (CT Out) of the
Remote connector. Pin A of the Remote connector is return ground.
2. Set the input power supply to 28  .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 01.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Use the CURSOR POSITION keys to the Monitor Frequency position and enter
115.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 115.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (synthesizer format select) and select the "Tone
B" softkey.
4-5
k. Move the cursor to Freq (frequency) and enter 08000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 02 through 10. Use
Table 4-3 to program the frequency presets in steps D and E above.
n. Press the "return" softkey.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the "GEN"
softkey.
b. Move the cursor to the Output Lvl (RF Output Level) position and enter a level of 050.0 dBm from the keypad.
c. Move the cursor to the Gen RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and from the keypad enter 5.00 kHz for VHF frequencies or 5.6
kHz for UHF frequencies. Note: This is FM deviation. Depress the RIGHT ARROW
CURSOR CONTROL key and depress the "Cont" (Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "AC VOLTS" softkey. Note: The "more" softkey may have to
be depressed for the "AC VOLTS" softkey to be displayed.
h. Move the cursor to the Range position and depress the "AUTO" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trigger Lvl (Trigger Level) position and enter 500 from the
keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "50 us" softkey.
Note: The "more" softkey may have to be depressed for the "50 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "5 V" softkey. Note: The
"more" softkey may have to be depressed for the "5 V" softkey to be displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the “move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Set the frequency presets as listed in Table 4-3 on the URC-200 (V2). For each preset
channel, adjust the URC-200 (V2) for the following. Note: Information on presetting the
URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this manual.
4-6
FM, CT, SCN OFF, BCN OFF,
6. Receiver FM CT Sensitivity Measurement:
a. Depress the RF key on the R2600 panel. Move the cursor to the Preset position and
set it for Preset 01. Adjust the URC-200 (V2) for channel 1.
b. Move the cursor to the Output Lvl (RF Output Level) position. Position the highlight to
the one-tenth position by depressing the RIGHT ARROW CURSOR POSITION key
three times. Rotate the TUNING control counter-clockwise on the R2600 panel until the
RF Output Level reads the limit for FM CT Sensitivity as stated in Table 1-1 located in
Section 1 of this manual.
c. Verify the 8kHz waveform pattern on the screen of the R2600 has an amplitude of 4
VPP to 24 VPP. Verify the square wave pattern is the same as it was with a -50dBm
signal except for the slight jumping around of the 8kHz pattern. Note, it may be helpful
to observe the 8kHz pattern as the RF input level is decreased. The jumping around of
the pattern will turn into a random breakup of the pattern.
d. On both the URC-200 (V2) and the R2600 repeat steps A through C for preselect
channels 2 through 9 and channel 0 on the URC-200 (V2) with the R2600 set on
preset channel 10.
4-2.2.3 Receive AM PT Sensitivity and Distortion
1. Set up the test equipment as shown in Figure 4-1. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin E (PT OUT) of the
Remote connector. Pin A or D of the remote connector is return ground.
2. Set the input power supply to 28 .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 01.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Use the CURSOR POSITION keys to the Monitor Frequency position and enter
115.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "AM" softkey.
f. Move the cursor to the Generate Frequency position and enter 115.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "AM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (synthesizer format select) and select the "Tone
A" softkey.
k. Move the cursor to Freq (frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 02 through 10. Use
Table 4-4 to program the frequency presets in steps D and E above.
n. Press the "return" softkey.
4-7
Table 4-4. AM Frequency Presets
Preset
URC-200 (V2)
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH0
R2600
CH01
CH02
CH03
CH04
CH05
CH06
CH07
CH08
CH09
CH10
Frequency
MHz
115.000
133.025
149.975
225.075
275.000
299.975
300.000
312.000
355.000
399.975
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the "GEN"
softkey.
b. Move the cursor to the Output Lvl (RF Output Level) position and enter a level of 050.0 dBm from the keypad.
c. Move the cursor to the Gen RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 30% from the keypad. Note: This is AM modulation.
Depress the RIGHT ARROW CURSOR CONTROL key and depress the "Cont"
(Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "AC VOLTS" softkey. Note: The "more" softkey may have to
be depressed for the "AC VOLTS" softkey to be displayed.
h. Move the cursor to the Range position and depress the "AUTO" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trigger Lvl (Trigger Level) position and enter 500 from the
keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "1 V" softkey. Note: The
"more" softkey may have to be depressed for the "1 V" softkey to be displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
4-8
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Set the frequency presets as listed in Table 4-4 on the URC-200 (V2). For each preset
channel, adjust the URC-200 (V2) for the following. Note: Information on presetting the
URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this manual.
AM, PT, SCN OFF, BCN OFF
6. On the R2600, do the following:
a Verify the "AC VOLTS" is on in the Meter position of the DISP (Display) segment.
b. Verify the "AUTO" is on in the Range position of the DISP (Display) segment.
c. Set the presets on both the URC-200 (V2) and the R2600 to channel 01. Adjust the
Volume control on the URC-200 (V2) to give an output level of 1.0 Vac 0.1 Vac as
read on the R2600 display.
d. Receiver AM PT Sensitivity Measurement: Move the cursor to the Meter position and
depress the "SINAD" softkey. Depress the RF key on the R2600 panel and move the
cursor to the Output Lvl (RF Output Level) position. Position the highlight to the onetenth position by depressing the RIGHT ARROW CURSOR POSITION key three
times. Rotate the TUNING control counter-clockwise on the R2600 panel until an
average of 10 dB of SINAD is read on the CRT display. Verify compliance with Table
1-1 located in Section 1 of this manual.
e. Readjust the Output Lvl back to -50 dBm by rotating the TUNING control clockwise to 50 dBm. This can also be accomplished by moving the highlight back to the beginning
of the Output Lvl position by using the CURSOR CONTROL keys and then entering 50 dBm on the keypad.
f. Receiver AM PT Distortion Measurement: Depress the DISP (Display) and move the
cursor to the Meter position. Depress the "EXT DIST" (External Distortion) softkey. The
AM PT Distortion is displayed in percent in the Display area of the CRT screen. Verify
compliance with Table 1-1 located in Section 1 of this manual.
g. On both the URC-200 (V2) and the R2600 repeat steps A through F for preselect
channels 2 through 9 and channel 0 on the URC-200 (V2) with the R2600 set on
preset channel 10.
4-2.2.4 Receiver AM CT Sensitivity
1. Set up the test equipment as shown in Figure 4-1. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin T (CT Out) of the
Remote connector. Pin A or D of the remote connector is return ground.
2. Set the input power supply to 28  .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 01.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Use the CURSOR POSITION keys to the Monitor Frequency position and enter
115.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "AM" softkey.
f. Move the cursor to the Generate Frequency position and enter 115.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "AM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
4-9
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (synthesizer format select) and select the "Tone
B" softkey.
k. Move the cursor to Freq (frequency) and enter 08000.0 from the keypad.
Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 02 through 10. Use
Table 4-4 to program the frequency presets in steps D and E above.
n. Press the "return" softkey.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the "GEN"
softkey.
b. Move the cursor to the Output Lvl (RF Output Level) position and enter a level of 050.0 dBm from the keypad.
c. Move the cursor to the Gen RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 70% from the keypad. Note: This is AM modulation.
Depress the RIGHT ARROW CURSOR CONTROL key and depress the "Cont"
(Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "AC VOLTS" softkey. Note: The "more" softkey may have to
be depressed for the "AC VOLTS" softkey to be displayed.
h. Move the cursor to the Range position and depress the "AUTO" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trigger Lvl (Trigger Level) position and enter 50 from the
keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "50 us" softkey.
Note: The "more" softkey may have to be depressed for the "50 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "5 V" softkey. Note: The
"more" softkey may have to be depressed for the "5 V" softkey to be displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
4-10
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Set the frequency presets as listed in Table 4-4 on the URC-200 (V2). For each preset
channel, adjust the URC-200 (V2) for the following. Note: Information on presetting the
URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this manual.
AM, CT, SCN OFF, BCN OFF
6. Receiver AM CT Sensitivity Measurement:
a. Depress the RF key on the R2600 panel. Move the cursor to the Preset position and
set it for Preset 01. Adjust the URC-200 (V2) for channel 1.
b. Move the cursor to the Output Lvl (RF Output Level) position. Position the highlight to
the one-tenth position by depressing the RIGHT ARROW CURSOR POSITION key
three times. Rotate the TUNING control counter-clockwise on the R2600 panel until the
RF Output Level reads the limit for AM CT Sensitivity as stated in Table 1-1 located in
Section 1 of this manual.
c. Verify the 8kHz waveform pattern on the screen of the R2600 has an amplitude of 4
VPP to 24 VPP. Verify the square wave pattern is the same as it was with a -50dBm
signal except for the slight jumping around of the 8kHz pattern. Note, it may be helpful
to observe the 8kHz pattern as the RF input level is decreased. The jumping around of
the pattern will turn into a random breakup of the pattern.
d. On both the URC-200 (V2) and the R2600 repeat steps A through C for preselect
channels 2 through 9 and channel 0 on the URC-200 (V2) with the R2600 set on
preset channel 10.
4-2.2.5 CT Audio Response
1. Set up the test equipment as shown in Figure 4-1. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin T (CT Out) of the
Remote connector. Pin A of the Remote connector is return ground.
2. Set the input power supply to 28  .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 08.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Use the CURSOR POSITION keys to the Monitor Frequency position and enter
312.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 312.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (synthesizer format select) and select the "Tone
A" softkey.
k. Move the cursor to Freq (frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
4-11
m. Press the "return" softkey twice.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the "GEN"
softkey.
b. Move the cursor to the Output Lvl (RF Output Level) position and enter a level of 080.0 dBm from the keypad.
c. Move the cursor to the Gen RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and from the keypad enter 5.00 kHz for VHF frequencies or 5.6
kHz for UHF frequencies. Note: This is FM deviation. Depress the RIGHT ARROW
CURSOR CONTROL key and depress the "Cont" (Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "AC VOLTS" softkey. Note: The "more" softkey may have to
be depressed for the "AC VOLTS" softkey to be displayed.
h. Move the cursor to the Range position and depress the "AUTO" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "DC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trigger Lvl (Trigger Level) position and enter 500 from the
keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "10 V" softkey. Note:
The "more" softkey may have to be depressed for the "10 V" softkey to be displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Adjust the URC-200 (V2) for preset channel 8. On the URC-200 (V2) set the
frequency to the preset frequency as listed in Table 4-3 for channel 8. Adjust the URC200 (V2) for the following. Note: Information on presetting the URC-200 (V2) is given in
Paragraph 2-3.2 located in Section 2 of this manual.
FM, CT, SCN OFF, BCN OFF,
6. CT Audio Response Measurement (1 kHz):
a. Note amplitude of the waveform in Vpp.
4-12
7. CT Audio Response Measurement (10 Hz): Measure the 10 Hz audio response by doing
the following on the R2600:
a. Depress the AUD (Audio) key
b. Depress the cursor keys for the Tone A frequency. Adjust it to 10 Hz
c. Depress the DISP (Display) key.
d. Depress the Horizontal key.
e. Depress the cursor control keys for 50 mS.
f. Read and record the amplitude of the waveform in Vpp. This reading should be the
same as the reading in step 6a.
8. CT Audio Response Measurement (10 kHz): Measure the 10 kHz audio response by
doing the following on the R2600:
a. Depress the AUD (Audio) key
b. Depress the cursor keys for the Tone A frequency. Adjust it to 10 kHz
c. Depress the DISP (Display) key.
d. Depress the cursor control keys for 50 uS
e. Read and record the amplitude of the waveform in Vpp. This reading should be 4 to 24
VPP.
4-2.2.6 Squelch Sensitivity
1. Set up the test equipment as shown in Figure 4-1. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin E (PT OUT) of the
Remote connector. Pin D of the Remote connector is return ground.
2. Set the input power supply to 28  .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 08.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Use the CURSOR POSITION keys to the Monitor Frequency position and enter
312.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 312.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (synthesizer format select) and select the "Tone
A" softkey.
k. Move the cursor to Freq (frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey twice.
4. Perform the following steps to complete the setup on the R2600 analyzer.
4-13
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the "GEN"
softkey.
b. Move the cursor to the Output Lvl (RF Output Level) position and enter a level of 080.0 dBm from the keypad.
c. Move the cursor to the Gen RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 6.50 kHz from the keypad. Note: This is FM deviation.
Depress the RIGHT ARROW CURSOR CONTROL key and depress the "Cont"
(Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "AC VOLTS" softkey. Note: The "more" softkey may have to
be depressed for the "AC VOLTS" softkey to be displayed.
h. Move the cursor to the Range position and depress the "AUTO" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trigger Lvl (Trigger Level) position and enter 500 from the
keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "1 V" softkey. Note: The
"more" softkey may have to be depressed for the "1 V" softkey to be displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Adjust the URC-200 (V2) for preset channel 8. On the URC-200 (V2) set the
frequency to the preset frequency as listed in Table 4-3 for channel 8. Adjust the URC200 (V2) for the following. Note: Information on presetting the URC-200 (V2) is given in
Paragraph 2-3.2 located in Section 2 of this manual.
FM, PT, SCN OFF, BCN OFF, SPKR ON
c. Adjust the SQ (Squelch) control fully counter-clockwise, past its detent, to the OFF
position.
6. Squelch Sensitivity Measurements:
a. On the R2600 front panel depress the RF key. Move the cursor to the Output Lvl (RF
Output Level) position. Using the TUNING knob on the front panel adjust the RF Output
Level to <-130 dBm.
4-14
b. Adjust the Squelch control clockwise until the speaker just squelches. Adjust the TUNING
knob which is adjusting the RF Output Level clockwise until the speaker just unsquelches.
Note: The TUNING knob's resolution may have to be adjusted so it is controlling tenths of
a dB of RF Output Level. To do this depress the RIGHT or LEFT ARROW CURSOR
CONTROL keys to position the cursor on the RF Output Level's tenth of a dB position.
c. Read the RF Output Level. Verify compliance with Table 1-1 located in Section 1 of this
manual.
4-2.2.7 Scan Function
1. Set up the test equipment as shown in Figure 4-1. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin E (PT Out) of the
Remote connector. Pin A of the Remote connector is return ground.
2. Set the input power supply to 28 .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 06.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Use the CURSOR POSITION keys to the Monitor Frequency position and enter
299.975 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 299.975 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (synthesizer format select) and select the "Tone
A" softkey.
k. Move the cursor to Freq (frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 07 and 08. Use Table
4-3 to program the frequency presets in steps D and E above.
n. Press the "return" softkey.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the "GEN"
softkey.
b. Move the cursor to the Output Lvl (RF Output Level) position and enter a level of 080.0 dBm from the keypad.
c. Move the cursor to the Gen RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 6.50 kHz from the keypad. Note: This is FM deviation.
Depress the RIGHT ARROW CURSOR CONTROL key and depress the "Cont"
(Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
4-15
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "AC VOLTS" softkey. Note: The "more" softkey may have to
be depressed for the "AC VOLTS" softkey to be displayed.
h. Move the cursor to the Range position and depress the "AUTO" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trigger Lvl (Trigger Level) position and enter 500 from the
keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "1 V" softkey. Note: The
"more" softkey may have to be depressed for the "1 V" softkey to be displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Set the channels 6, 7, and 8 for the preset frequencies as listed in Table 4-3. Adjust
the URC-200 (V2) for the following. Note: Information on presetting the URC-200 (V2)
is given in Paragraph 2-3.2 located in Section 2 of this manual.
FM, PT, SCN ON, BCN OFF, SPKR ON, CH 8
c. Adjust the SQ (Squelch) control fully counter-clockwise, past its detent, to the OFF
position.
6. Scan Function Measurements:
a. On the R2600 front panel depress the RF key. Move the cursor to the Output Lvl (RF
Output Level) position. Using the TUNING knob on the front panel adjust the RF
Output Level to <-130 dBm.
b. Adjust the Squelch control clockwise until the speaker just squelches. Adjust the
TUNING knob which is adjusting the RF Output Level clockwise until the speaker just
unsquelches. Note: The TUNING knob's resolution may have to be adjusted so it is
controlling tenths of a dB of RF Output Level. To do this depress the RIGHT or LEFT
ARROW CURSOR CONTROL keys to position the cursor on the RF Output Level's
tenth of a dB position.
c. Set the transceiver to SCAN channels 6 through 8 as described in Paragraph 2-3.2.7
of Section 2.
d. Turn SCN ON as described in Paragraph 2-3.3.1 of Section 2.
e. Adjust SQ control clockwise until speaker squelches. After approximately 8 seconds,
the display should show that channels 6 through 8 are being scanned.
4-16
f. On the R2600, increase the RF Output Level with the TUNING control until the speaker
unsquelches. The display on the transceiver should now stop scanning and show
Channel 8 (312 MHz).
g. Using the TUNING knob on the front panel adjust the RF Output Level to <-130 dBm.
Select preset channel 6.
h. On the R2600, increase the RF Output Level with the TUNING control, until the
speaker unsquelches. The display on the transceiver should now stop scanning and
show Channel 6 (300.000 MHz).
4-2.2.8 Signal-Strength Meter
1. Set up the test equipment as shown in Figure 4-1. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector on the R2600 to Pin E (PT Out) of the
Remote connector. Pin A of the Remote connector is return ground.
2. Set the input power supply to 28  .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 03.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Use the CURSOR POSITION keys to the Monitor Frequency position and enter
173.975 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 173.975 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5 kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (synthesizer format select) and select the "Tone
A" softkey.
k. Move the cursor to Freq (frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey twice.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the "GEN"
softkey.
b. Move the cursor to the Output Lvl (RF Output Level) position and enter a level of 130.0 dBm from the keypad.
c. Move the cursor to the Gen RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 6.50 kHz from the keypad. Note: This is FM deviation.
Depress the RIGHT ARROW CURSOR CONTROL key and depress the "Cont"
(Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
4-17
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "AC VOLTS" softkey. Note: The "more" softkey may have to
be depressed for the "AC VOLTS" softkey to be displayed.
h. Move the cursor to the Range position and depress the "AUTO" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trigger Lvl (Trigger Level) position and enter 500 from the
keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n Move the cursor to the Vert (Vertical) position and depress the "1 V" softkey. Note: The
"more" softkey may have to be depressed for the "1 V" softkey to be displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Set the channel 3 for the preset frequency as listed in Table 4-3. Adjust the URC-200
(V2) for the following. Note: Information on presetting the URC-200 (V2) is given in
Paragraph 2-3.2 located in Section 2 of this manual.
FM, PT, SCN OFF, BCN OFF, SPKR ON, CH 3
c. Adjust the SQ (Squelch) control fully counter-clockwise, past its detent, to the OFF
position.
d. Select METER MODE per Paragraph 2-3.1.5 located in Section 2 of this manual.
6. Signal-Strength Meter Measurement:
a. Move the cursor to the Gen RF Out position and select GEN. Move the cable from the
RF IN/OUT connector to the GEN OUT connector. Position the cursor to the Output
Lvl position and enter a signal level to -80.0 dBm. Verify at least one bar is present.
Readjust the Output Lvl to 0dBm and verify fourteen 14 bars are present on the URC200 (V2) display with the possibility that the 14th bar may be flickering on and off.
b. Move the cursor back to the Gen RF Out position and select RF IN/OUT. Move the
cable back to the RF IN/OUT connector.
4-2.3. TRANSMITTER TESTS
The following tests evaluate the performance of the XMT circuits. Tests include frequency
accuracy, output power, PT/CT modulation, modulation distortion, and beacon. If the transceiver
fails any of the tests, or if it cannot be adjusted to specified values, it must be sent to General
Dynamics C4 Systems for repair.
4-18
WARNING
DO NOT THROW BATTERIES IN THE TRASH
Dispose of all used batteries in accordance with all Federal, State
and local laws and regulations. Lithium batteries may be used in
the URC-200 (V2) Transceiver however lithium batteries contain
hazardous materials.
Improper
handling,
reverse-current
operation
or
high
environmental temperatures may cause internally generated heat,
fire or toxic materials and gasses to be released from the battery.
The following precautions must be strictly observed to prevent
injury to personnel or damage to equipment:
 DO NOT heat, incinerate, crush, puncture, disassemble or
mutilate the batteries.
 DO NOT recharge primary Non- rechargeable) batteries.
 DO NOT store in equipment during periods of non-use for
more than 30 days.
 DO follow all safety instructions that come with the batteries or
printed on them.
 TURN OFF the equipment immediately if you (1) detect that
the battery compartment is becoming unduly hot, (2) hear battery
cells venting (hissing), or (3) smell irritating sulfur dioxide gas.
Remove the battery only after it is cool (after 30 to 60 minutes),
and dispose of it by following approved procedures.
Do not attempt to change the operating frequency while the transmitter is keyed on.
Although the radio set will not be damaged, the radiated frequency will be uncontrolled during
retuning and can cause unnecessary interference to other radio systems.
4-19
CAUTION
DO NOT attempt to change the operating frequency while the
transmitter is keyed on. Although the radio set will not be
damaged, the radiated frequency will be uncontrolled during
tuning and can cause unnecessary interference to other radio
systems.
CAUTION
DO NOT install the LOS antenna on the transceiver during testing
in the transmit mode with (1) the cover removed or (2) the
transceiver powered from an external power supply via test leads
that are unshielded. RF from the antenna can radiate into the
transceiver, circumvent the protection loops, and cause severe
damage to the transmitter circuits.
4-2.3.1 Frequency Accuracy and FM Power Output
1. Set up the test equipment as shown in Figure 4-2. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector to the DEMOD connector on the
R2600. For now, do not connect the R2600 MOD OUT port to either pins B or H of the XMode connector on the URC-200 (V2). Also for now, do not connect the PTT (Push-toTalk) line (pin F) to ground. Note, when the PTT line is grounded the URC-200 (V2)
transmitter is keyed and begins transmitting.
2. Set the input power supply to 28 .1 Vdc.
Figure 4-2. Transmitter Test Setup
4-20
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 01.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Using the CURSOR POSITION keys move to the Monitor Frequency position and
enter 115.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 115.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (Synthesizer Format Select) and select the
"Tone A" softkey.
k. Move the cursor to Freq (Frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 02 through 10. Use
Table 4-3 to program the frequency presets in steps D and E above.
n. Press the "return" softkey.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the
"MON" softkey.
b. Move the cursor to the Attenuation position and press the "40" softkey.
c. Move the cursor to the Mon RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 0.77 V RMS from the keypad. Note: This is FM
deviation. Depress the RIGHT ARROW CURSOR CONTROL key and depress the
"Cont" (Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "RF DISPLAY" softkey. Note: The "more" softkey may have to
be depressed for the "RF DISPLAY" softkey to be displayed.
h. Move the cursor to the Input Lvl Input Level) position and depress the "dBm" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trig Lvl (Trigger Level) position and enter 500 from the keypad.
4-21
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "200 mV" softkey. Note:
The "more" softkey may have to be depressed for the "200 mV" softkey to be
displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Set the frequency presets as listed in Table 4-3 on the URC-200 (V2). For each preset
channel, adjust the URC-200 (V2) for the following. Note: Information on presetting the
URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this manual.
FM, LO POWER, PT, SCN OFF, BCN OFF
6. Transmitter Frequency Accuracy and FM Power Output Measurements:
a. Set the presets on both the URC-200 (V2) and the R2600 to channel 01. Verify the
URC-200 (V2) is in the LO POWER mode.
b. Key the transceiver into the R2600 test set and read the frequency error displayed on
the screen. Verify the ppm as listed in Table 1-1 in Section 1 of this manual is within
compliance by dividing the frequency error by the operating frequency. Note: In keying
the transceiver the PTT line, pin F, will be grounded.
c. Measure the transmit power on the R2600 screen. Verify compliance with Table 1-1 in
Section 1 of this manual.
d. Unkey the URC-200 (V2) and adjust it for MED POWER. Rekey the URC-200 (V2) and
verify compliance with Table 1-1 in Section 1 of this manual.
e. Unkey the URC-200 (V2) and adjust it for HI POWER. Rekey the URC-200 (V2) and
verify compliance with Table 1-1 in Section 1 of this manual.
f. On both the URC-200 (V2) and the R2600 repeat steps A through E for preselect
channels 2 through 9 and channel 0 on the URC-200 (V2) with the R2600 set on
preset channel 10.
4-2.3.2 FM PT Deviation and Distortion
1. Set up the test equipment as shown in Figure 4-2. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector to the DEMOD connector on the
R2600. On the R2600 connect the MOD OUT connector to pins H and J of the X-MODE
connector on the URC-200 (V2). Note: Use Pin J as the return line, ground. Do not
connect the PTT (Push-to-Talk) line (pin F) to ground. Note: When the PTT line is
grounded the URC-200 (V2)'s transmitter will key itself ON.
2. Set the input power supply to 28  .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 01.
4-22
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Using the CURSOR POSITION keys move to the Monitor Frequency position and
enter 115.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 115.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (Synthesizer Format Select) and select the
"Tone A" softkey.
k. Move the cursor to Freq (Frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 02 through 10. Use
Table 4-3 to program the frequency presets in steps D and E above.
n. Press the "return" softkey.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the
"MON" softkey.
b. Move the cursor to the Attenuation position and press the "40" softkey.
c. Move the cursor to the Mon RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 0.77 V RMS from the keypad. Note: This is FM
deviation. Depress the RIGHT ARROW CURSOR CONTROL key and depress the
"Cont" (Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "RF DISPLAY" softkey. Note: The "more" softkey may have to
be depressed for the "RF DISPLAY" softkey to be displayed.
h. Move the cursor to the Input Lvl Input Level) position and depress the "dBm" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trig Lvl (Trigger Level) position and enter 500 from the keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "200 mV" softkey. Note:
The "more" softkey may have to be depressed for the "200 mV" softkey to be
displayed.
4-23
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA. If
the current exceeds 330mA, a problem exists in the transceiver. Turn off the power and
troubleshoot the transceiver.
b. Set the frequency presets as listed in Table 4-3 on the URC-200 (V2). For each preset
channel, adjust the URC-200 (V2) for the following. Note: Information on presetting the
URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this manual.
FM, LO POWER, PT, SCN OFF, BCN OFF
6. Transmitter FM PT Deviation and Distortion Measurements:
a. Set the presets on both the URC-200 (V2) and the R2600 to channel 01. Verify the
URC-200 (V2) is in the LO POWER mode.
b. Key the transceiver into the R2600 test set and read the FM deviation on the R2600
screen. Verify compliance with Table 1-1 in Section 1 of this manual. Note: In keying
the transceiver the PTT line, pin F, will be grounded.
c. Depress the DISP key on the R2600 front panel and move the cursor to the Meter
position and press the "EXT DIST" softkey. Note: The "more" softkey may have to be
depressed for the "EXT DIST" softkey to be displayed.
d. Read the FM distortion on the R2600 screen and verify compliance with Table 1-1 in
Section 1 of this manual.
e. Depress the DISP key on the R2600 front panel and move the cursor to the Meter
position and press the "RF DISPLAY" softkey. Note: The "more" softkey may have to
be depressed for the "RF DISPLAY" softkey to be displayed.
f. On both the URC-200 (V2) and the R2600 repeat steps A through E for preselect
channels 2 through 9 and channel 0 on the URC-200 (V2) with the R2600 set on
preset channel 10.
4-2.3.3 FM CT Deviation and Distortion
1. Set up the test equipment as shown in Figure 4-2. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector to the DEMOD connector on the
R2600. On the R2600 connect the MOD OUT connector to pin B of the X-MODE
connector on the URC-200 (V2). Do not connect the PTT (Push-to-Talk) line (pin F) to
ground. Note: When the PTT line is grounded the URC-200 (V2)'s transmitter will key itself
ON.
2. Set the input power supply to 28  .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 01.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Using the CURSOR POSITION keys move to the Monitor Frequency position and
enter 115.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
4-24
f. Move the cursor to the Generate Frequency position and enter 115.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
h. Move the cursor to bandwidth and press the "WIDE 100kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (Synthesizer Format Select) and select the
"Tone A" softkey.
k. Move the cursor to Freq (Frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 02 through 10. Use
Table 4-3 to program the frequency presets in steps D and E above.
n. Press the "return" softkey.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the
"MON" softkey.
b. Move the cursor to the Attenuation position and press the "40" softkey.
c. Move the cursor to the Mon RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 0.77 V RMS from the keypad. Note: This is FM
deviation. Depress the RIGHT ARROW CURSOR CONTROL key and depress the
"Cont" (Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "RF DISPLAY" softkey. Note: The "more" softkey may have to
be depressed for the "RF DISPLAY" softkey to be displayed.
h. Move the cursor to the Input Lvl Input Level) position and depress the "dBm" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trig Lvl (Trigger Level) position and enter 500 from the keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "200 mV" softkey. Note:
The "more" softkey may have to be depressed for the "200 mV" softkey to be
displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
4-25
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Set the frequency presets as listed in Table 4-3 on the URC-200 (V2). For each preset
channel, adjust the URC-200 (V2) for the following. Note: Information on presetting the
URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this manual.
FM, LO POWER, CT, SCN OFF, BCN OFF
6. Transmitter FM CT Deviation and Distortion Measurements:
a. Set the presets on both the URC-200 (V2) and the R2600 to channel 01. Verify the
URC-200 (V2) is in the LO POWER mode.
b. Key the transceiver into the R2600 test set and read the FM deviation on the R2600
screen. Verify compliance with Table 1-1 in Section 1 of this manual. Note: In keying
the transceiver the PTT line, pin F, will be grounded.
c. Observe the scope display on the R2600, it should be showing a pseudo square wave
1 kHz signal.
d. On both the URC-200 (V2) and the R2600 repeat steps A through C for preselect
channels 2 through 9 and channel 0 on the URC-200 (V2) with the R2600 set on
preset channel 10.
4-2.3.4 AM Power Output, PT % Modulation and PT Distortion
1. Set up the test equipment as shown in Figure 4-2. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector to the DEMOD connector on the
R2600. Connect the R2600 MOD OUT port to pin H of the X-Mode connector on the URC200 (V2). Do not connect the PTT (Push-to-Talk) line (pin F) to ground. Note: When the
PTT line is grounded the URC-200 (V2)'s transmitter will key itself ON.
2. Set the input power supply to 28 .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 01.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Using the CURSOR POSITION keys move to the Monitor Frequency position and
enter 115.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "AM" softkey.
f. Move the cursor to the Generate Frequency position and enter 115.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "AM" softkey.
h. Move the cursor to bandwidth and press the "NARROW 5kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (Synthesizer Format Select) and select the
"Tone A" softkey.
k. Move the cursor to Freq (Frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 02 through 10. Use
Table 4-4 to program the frequency presets in steps D and E above.
4-26
n. Press the "return" softkey.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the
"MON" softkey.
b. Move the cursor to the Attenuation position and press the "40" softkey.
c. Move the cursor to the Mon RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 0.77 V RMS from the keypad. Note: This is AM
modulation. Depress the RIGHT ARROW CURSOR CONTROL key and depress the
"Cont" (Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "RF DISPLAY" softkey. Note: The "more" softkey may have to
be depressed for the "RF DISPLAY" softkey to be displayed.
h. Move the cursor to the Input Lvl Input Level) position and depress the "dBm" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trig Lvl (Trigger Level) position and enter 500 from the keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "200 mV" softkey. Note:
The "more" softkey may have to be depressed for the "200 mV" softkey to be
displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Set the frequency presets as listed in Table 4-4 on the URC-200 (V2). For each preset
channel, adjust the URC-200 (V2) for the following. Note: Information on presetting the
URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this manual.
AM, LO POWER, PT, SCN OFF, BCN OFF
6. Transmitter AM Power Output, PT % Modulation, and PT Distortion Measurements:
a. Set the presets on both the URC-200 (V2) and the R2600 to channel 01. Verify the
URC-200 (V2) is in the LO POWER mode.
4-27
b. Key the transceiver by grounding pin F, see Figure 4-2, and measure the transmit
output power on the R2600 screen. Verify compliance with Table 1-1 in Section 1 of
this manual.
4-28
NOTE
When measuring AM transmitter output power on the R2600 or
on any power meter that has a peak detector, which includes
virtually all of the portable inline or direct power meters, the
carrier power that is read on the wattmeter will need to be
converted to average power to verify compliance as indicated
above. To convert carrier power to average power use the
following formula:
P AVG = P C [1 + (m2 / 2)]
where:
P AVG = Average Power
P C = Carrier Power
m = modulation as a decimal; i.e., 80% = .8
It should be noted, that in order to obtain the modulation value
for the above formula, the next step (c) will need to be
completed.
c. Read the AM % modulation on the R2600 screen. Verify compliance with Table 1-1 in
Section 1 of this manual.
d. Depress the DISP key on the R2600 front panel. Move the cursor to the Meter position and
press the "EXT DIST" softkey. Note: The "more" softkey may have to be depressed for
the "EXT DIST" softkey to be displayed. Read the % of distortion on the R2600 screen.
Verify compliance with Table 1-1 in Section 1 of this manual.
e. Unkey the URC-200 (V2) and adjust it for HI POWER. Depress the DISP key on the R2600
front panel. Move the cursor to the Meter position and press the "RF DISPLAY" softkey.
Note: The "more" softkey may have to be depressed for the "RF DISPLAY" softkey to
be displayed. Rekey the URC-200 (V2) and verify compliance with Table 1-1 in Section
1 of this manual.
NOTE
When measuring AM transmitter output power on the R2600 or
on any power meter that has a peak detector, which includes
virtually all of the portable inline or direct power meters, the
carrier power that is read on the wattmeter will need to be
converted to average power to verify compliance as indicated
above. To convert carrier power to average power use the
following formula:
P AVG = P C [1 + (m2 / 2)]
where:
P AVG = Average Power
P C = Carrier Power
m = modulation as a decimal; i.e., 80% = .8
It should be noted, that the modulation has to be measured in
order to obtain the modulation value for the above formula.
f. On both the URC-200 (V2) and the R2600 repeat steps A through E for preselect
channels 2 through 9 and channel 0 on the URC-200 (V2) with the R2600 set on
preset channel 10.
4-2.3.5 AM CT % Modulation and CT Distortion
1. Set up the test equipment as shown in Figure 4-2. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector to the DEMOD connector on the
R2600. On the R2600 connect the MOD OUT connector to pin B of the X-MODE
connector on the URC-200 (V2). Do not connect the PTT (Push-to-Talk) line (pin F) to
ground. Note: When the PTT line is grounded the URC-200 (V2)'s transmitter will key itself
ON.
2. Set the input power supply to 28 .1 Vdc.
3. Preset the R2600 by performing the following steps.
4-29
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 01.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Using the CURSOR POSITION keys move to the Monitor Frequency position and
enter 115.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "AM" softkey.
f. Move the cursor to the Generate Frequency position and enter 115.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "AM" softkey.
h. Move the cursor to bandwidth and press the "WIDE 100kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (Synthesizer Format Select) and select the
"Tone A" softkey.
k. Move the cursor to Freq (Frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey. Repeat steps A through K for presets 02 through 10. Use
Table 4-4 to program the frequency presets in steps D and E above.
n. Press the "return" softkey.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the
"MON" softkey.
b. Move the cursor to the Attenuation position and press the "40" softkey.
c. Move the cursor to the Mon RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 0.77 V RMS from the keypad. Note: This is AM
modulation. Depress the RIGHT ARROW CURSOR CONTROL key and depress the
"Cont" (Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "RF DISPLAY" softkey. Note: The "more" softkey may have to
be depressed for the "RF DISPLAY" softkey to be displayed.
h. Move the cursor to the Input Lvl Input Level) position and depress the "dBm" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trig Lvl (Trigger Level) position and enter 500 from the keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
4-30
n. Move the cursor to the Vert (Vertical) position and depress the "200 mV" softkey. Note:
The "more" softkey may have to be depressed for the "200 mV" softkey to be
displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p. Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
b. Set the frequency presets as listed in Table 4-4 on the URC-200 (V2). For each preset
channel, adjust the URC-200 (V2) for the following. Note: Information on presetting the
URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this manual.
AM, LO POWER, CT, SCN OFF, BCN OFF
6. Transmitter AM CT % Modulation and Distortion Measurements:
a. Set the presets on both the URC-200 (V2) and the R2600 to channel 01. Verify the
URC-200 (V2) is in the LO POWER mode.
b. Key the transceiver into the R2600 test set and read the AM modulation on the R2600
screen. Verify compliance with Table 1-1 in Section 1 of this manual. Note: In keying
the transceiver the PTT line, pin F, will be grounded.
c. Observe the scope display on the R2600, it should be showing a square wave 1 kHz
signal.
d. On both the URC-200 (V2) and the R2600 repeat steps A through C for preselect
channels 2 through 9 and channel 0 on the URC-200 (V2) with the R2600 set on
preset channel 10.
4-2.3.6 Beacon
1. Set up the test equipment as shown in Figure 4-2. Connect the
VERT/SINAD/DIST/DVM/COUNTER IN connector to the DEMOD connector on the
R2600. On the R2600 connect the MOD OUT connector to pin B of the X-MODE
connector on the URC-200 (V2). Do not connect the PTT (Push-to-Talk) line (pin F) to
ground. Note: When the PTT line is grounded the URC-200 (V2)'s transmitter will key itself
ON.
2. Set the input power supply to 28 .1 Vdc.
3. Preset the R2600 by performing the following steps.
a. Press the MEM (Memory) key on the R2600 panel for the preset-screen.
b. Use the CURSOR POSITION keys to highlight preset 08.
c. Press the "view preset" softkey. Note: The softkeys are the eight keys under the CRT
screen on the R2600.
d. Using the CURSOR POSITION keys move to the Monitor Frequency position and
enter 312.000 from the R2600 keypad.
e. Move the cursor to Modulation Type and press the "FM" softkey.
f. Move the cursor to the Generate Frequency position and enter 312.000 from the
R2600 keypad.
g. Move the cursor to Modulation Type and press the "FM" softkey.
4-31
h. Move the cursor to bandwidth and press the "WIDE 100kHz" softkey.
i. Move the cursor to the Duplex Offset position and press the "DON'T CARE" softkey.
j. Move the cursor to Synth. Format Sel (Synthesizer Format Select) and select the
"Tone A" softkey.
k. Move the cursor to Freq (Frequency) and enter 01000.0 from the keypad.
l. Move the cursor to the DTMF Code position and press the "DON'T CARE" softkey.
Note: The "more" softkey may have to be depressed for the "DON'T CARE" softkey to
be displayed.
m. Press the "return" softkey twice.
4. Perform the following steps to complete the setup on the R2600 analyzer.
a. Press RF key on the R2600 panel. Move the cursor to RF Control and press the
"MON" softkey.
b. Move the cursor to the Attenuation position and press the "40" softkey.
c. Move the cursor to the Mon RF Out position and press the "RF IN/OUT" softkey.
d. Depress the AUD (Audio) key on the R2600 panel. Move the cursor to the Synth
(Synthesizer) position and enter 0.77 V RMS from the keypad. Note: This is FM
deviation. Depress the RIGHT ARROW CURSOR CONTROL key and depress the
"Cont" (Continuous) softkey.
e. Move the cursor to the Fixed 1 kHz position. Depress the LEFT ARROW CURSOR
CONTROL key and then depress the "Off" softkey.
f. Verify the DTMF position and the External position are both OFF.
g. Depress the DISP (Display) key on the R2600 panel. Move the cursor to the Meter
position and depress the "RF DISPLAY" softkey. Note: The "more" softkey may have to
be depressed for the "RF DISPLAY" softkey to be displayed.
h. Move the cursor to the Input Lvl Input Level) position and depress the "dBm" softkey.
i. Move the cursor to the Display position and depress the "EXT SCOPE" softkey.
j. Move the cursor to the Coupling position and depress the "AC" softkey.
k. Move the cursor to the Trigger position and depress the "AUTO" softkey.
l. Move the cursor to the Trig Lvl (Trigger Level) position and enter 500 from the keypad.
m. Move the cursor to the Horiz (Horizontal) position and depress the "500 us" softkey.
Note: The "more" softkey may have to be depressed for the "500 us" softkey to be
displayed.
n. Move the cursor to the Vert (Vertical) position and depress the "200 mV" softkey. Note:
The "more" softkey may have to be depressed for the "200 mV" softkey to be
displayed.
o. Move the cursor to the Pos (Position) position and depress the "move up" or "move
down" softkeys as appropriate to center the displayed scope screen trace. Note: The
TUNING knob on the R2600 panel may be used in lieu of the "move up" or "move
down" softkeys.
p Adjust both the SQUELCH and VOLUME controls on the front panel to their maximum
CCW positions.
5. Setup the URC-200 (V2) as follows:
a. Turn the transceiver on and note the input current. It should be approximately 240mA.
If the current exceeds 330mA, a problem exists in the transceiver. Turn off the power
and troubleshoot the transceiver.
4-32
a. On the URC-200 (V2) set the frequency presets to channel 8 and program it to
312.000 MHz. Adjust the URC-200 (V2) for the following. Note: Information on
presetting the URC-200 (V2) is given in Paragraph 2-3.2 located in Section 2 of this
manual.
FM, LO POWER, CT, SCN OFF, BCN OFF
6. Transmitter Beacon Measurements:
a. Set the presets on both the URC-200 (V2) and the R2600 to channel 08. Verify the
URC-200 (V2) is in the LO POWER mode.
b. On the transceiver, set BCN ON per Paragraph 2-3.3.2.
c. Read the transmitter output power on the R2600. Verify compliance of the output
power (LO POWER mode) with Table 1-1 in Section 1 of this manual. Turn up the
VOLUME control on the R2600; the variable frequency emergency beacon tone should
be audible and visible on the R2600 display.
4-3. POWER SUPPLY VOLTAGES
The internal power supply in the URC-200 (V2) is located on the Audio, Processor, Power
Supply (APPS) printed wiring board. The power supply has one input voltage (+24 Vdc) and five
output voltages (+5 Vdc, -5 Vdc, +12 Vdc, -12 Vdc, and +70 Vdc).
4-3.1. INPUT VOLTAGE
The input voltage can be measured on pin G of the X-Mode connector which is located on
the front panel. Depending on what is being used to supply power to the transceiver (batteries,
external power supply, or etc., the normal input voltage can vary from approximately 22 Vdc to 30
Vdc. This voltage can also be displayed on the front panel of the transceiver using the R/T key as
described in Paragraph 4-3.2.
NOTE
If the transceiver is being operated from batteries and the voltage reading
is below 22 Vdc, install fresh batteries in the battery pack.
4-3.2. INTERNAL VOLTAGES
Six internal voltages can be displayed on the front panel. The following table shows the
tolerance range for each. If the input voltage is within the specified range and any of the internal
voltages are out of tolerance, the transceiver should be returned to General Dynamics for repair.
Display
PS1
PS2
PS3
PS4
PS6
4-3.2.1
Internal Voltage
+5 Vdc
+12 Vdc
-5 Vdc
-12 Vdc
+70 Vdc
Voltage Measurements
4-33
Tolerance
4.4 to 5.6 Vdc
10.5 to 13.4 Vdc
-4.4 to –5.6 Vdc
-10.5 to –13.4 Vdc
61.6 to 78.4 Vdc
With the transceiver set-up in the meter-mode per Paragraph 2-3.1.5.,
pressing the [R/T] key will display the voltages of the internal power supplies
and of the batteries. The first time [R/T] is pressed the voltage of the +5Vdc
supply - PS1 is displayed. Each consecutive press of [R/T] brings up the next
supply; PS2: +12Vdc, PS3: -5Vdc, PS4: -12Vdc, PS5: +24Vdc (external power
batteries), PS6: +70Vdc and AGC.
NOTE
The AGC level displayed is not a voltage. The AGC is expressed as a
digital value from 000 to 255.
Figure 4-4. Breakout Box Schematic
Note:
When performing the Receiver Tests in accordance with Paragraph 4-2.2 and Figure 4-1:
● For the PT OUT on pin E of the Breakout Box, Pin D is the ground return.
4-34
● For the CT OUT on pin T of the Breakout Box, Pin D is the ground return.
When performing the Transmitter Tests in accordance with Paragraph 4-2.3 and Figure 4-2:
● For the CT IN on pin B of the Breakout Box, Pin D is the ground return.
● For the HI-LVL PT IN on pin H of the Breakout Box, Pin J is the ground return.
4-35
SECTION 5. OPTIONS
5-1. 30 TO 90 MHZ OPTION 01-P37200N001 TO THE URC-200 (V2) TRANSCEIVER
5-1.1. GENERAL INFORMATION
This option provides the 30 to 90 MHz (LVHF) band to the URC-200 (V2) Radio Set. Many
of the operational features in the 30 to 90 MHz frequency band are the same as in the VHF or
UHF frequency bands.
5-1.2. FEATURES
5-1.2.1 Frequency Range:
The 30 to 90 MHz range of frequencies resides in the Low VHF (LVHF) band of frequencies.
The LVHF frequencies on the URC-200 (V2) has a center frequency tuning increment of 12.5
kHz.
5-1.2.2 Tone Squelch:
Normally the URC-200 (V2) in the LVHF band will use a 150 Hz Tone Squelch which is
compatible with other radios in this band of frequencies. If desired, the tone may be turned OFF,
however, “white-noise” will be coming from the speaker.
5-1.3. LIMITATIONS
5-1.3.1 Modulation:
The URC-200 (V2) using the 30 to 90 MHz option will receive and transmit FM modulation
only.
5-1.3.2 Carrier-to-Noise Squelch:
The carrier-to-noise squelch, which is set by the Squelch Control when the URC-200 (V2) is
in the VHF or UHF frequency bands, is effectively disabled in 30-90 MHz band.
5-1.3.3 Select Meter Mode:
The front panel display signal strength meter and power meter do not operate when the
transceiver is in the 30 to 90 MHz band.
5-1.3.4 UEC-120/220 Remote Control Optional Accessory:
Use only the UEC-120/220 Remote Control Units when operating the URC-200 (V2) with the
30 to 90 MHz Option. The optional remote control accessory, UEC-100/200, was designed only
for the VHF and UHF frequency bands. The UEC-100/200 will not operate in the 30 to 90 MHz
(LVHF) frequency band and, therefore, cannot be used with the URC-200 (V2) when using the
LVHF band.
5-1.4. SPECIFICATIONS
The following specifications pertain only to the 30 to 90 MHz option within a URC-200 (V2)
transceiver.
5-1
General
Frequency Range:
LVHF - 30 to 90 MHz
Modulation:
FM only
Receiver Characteristics
Sensitivity:
PT - 10 dB SINAD:
 -110 dBm, 1 kHz modulation with 10 kHz deviation
CT - BER (Bit Error Rate):
 -105 dBm, 16 kb/sec (kilo bits per second) with 6.5 kHz deviation
Spurious Response:
> 80 dB
Squelch Type:
 150 Hz Tone Squelch (tone ON)
 No squelch when the 150 Hz tone is OFF
Squelch Range:
 Tone Squelch: <-110 dBm, fixed trip point
 No squelch when the 150 Hz tone is OFF.
Transmitter Characteristics
High Power Output:
5 watts +2/-1 dB (37 dBm +2/-1 dB)
Medium Power Output:
1 watts +3/-2 dB (30 dBm +3/-2 dB)
Low Power Output:
150 mW +3/-2 dB (21.8 dBm +3/-2 dB)
Modulation:
PT:
10.0 kHz at 1 kHz
CT:
6.5 kHz at 8 kHz
5-1.5. REQUIRED SYSTEM EQUIPMENT
The following equipment is the minimum required for a self contained LOS communications
device that will operate in the LVHF band.
Quantity Required
Part Number
Nomenclature
01-P36744M003
URC-200 (V2) Transceiver
01-P37200N001
30 to 90 MHz URC-200 (V2) Module Assembly.
EBN -30 Option
85-P35988M001
Antenna VHF/UHF
10454
01-P04535L001
Handset, H-189/GR
01-P36751M001
Battery Box
Antenna LVHF
5-1.6. INSTALLATION AND OPERATION
5-1.6.1 Siting:
Although ionospheric scatter propagation is possible in the 30 to 90 MHz range, the results
can be unpredictable and sporadic. When using the URC-200 (V2) in the 30 to 90 MHz
5-2
frequency band (LVHF) it is recommended that the same line-of-sight (LOS) siting considerations
be applied as when operating in the VHF or UHF frequency bands.
5-1.6.2 Antenna Installation:
Connect the LVHF antenna to the type “N” connector on the front panel. Route the
gooseneck portion of the antenna base so the antenna is oriented vertically. Satisfactory
performance is achieved with the LVHF antenna and the VHF/UHF antenna mounted on the
URC-200 (V2) at the same time. However, the unused antenna should be removed for optimum
antenna performance.
5-1.6.3 Selecting LVHF Frequencies:
Press the [FREQ] key (keypad [1]) to select the frequency entry mode. To select a frequency
in the LVHF band, a zero (0) must be pressed before entering the desired frequency. For
example, to enter 35.6 MHz, press [0] [3] [5] [6] [0] [0].
5-1.6.4 Squelch:
The 30 to 90 MHz band employs a 150 Hz Tone Squelch. To activate the Tone Squelch,
press the [TONE] key (keypad [2]). A lower case “t” will appear at the 100 MHz position on the
display when the Tone Squelch is active, or turned ON. When using the 150 Hz Tone Squelch,
the Squelch Control will not effect the tone squelch threshold. It should be noted that the only
signals that will break the receiver’s squelch, when the Tone Squelch is ON, are those that are
on-channel and are being modulated with a 150 Hz tone that has a sufficient deviation level to
break the receiver’s tone squelch threshold.
If desired, the 150 Hz Tone Squelch may be deactivated, or turned OFF. The lower case “t”
will disappear from the 100 MHz position on the display when the Tone Squelch is turned OFF.
With the tone turned OFF there is no squelching of the white-noise on the URC-200 (V2).
5-3
5-2. 400 TO 420 MHZ OPTION 01-P39234N001 TO THE URC-200 (V2) TRANSCEIVER
5-2.1. GENERAL INFORMATION
This option extends the URC-200 (V2) Radio Set’s UHF band to 420 MHz. Many of the
operational features in the 400 to 420 MHz frequency band are the same as in the UHF band.
5-2.2. FEATURES
5-2.2.1 Frequency Range:
The 400 to 420 MHz band of frequencies in the URC-200 (V2). Tuning increments are 25,
12.5 and 5 kHz.
5-2.3. LIMITATIONS
5-2.3.1 Modulation:
The URC-200 (V2) with the 400 to 420 MHz option will receive and transmit using FM
modulation.
5-2.3.2 Text Mode:
When in 400 to 420 MHz band, received data will be inverted whether the URC-200 (V2) is
in Plain Text (PT) mode or Cipher Text (CT) mode.
5-2.4. SPECIFICATIONS
The following specifications pertain only to the 400 to 420 MHz option within a URC-200
(V2) transceiver.
General
Frequency Range:
400 to 420 MHz
Modulation:
FM
Operating Modes
PT or CT
Text Mode:
Transmitter Characteristics
High Power Output:
10 watts +/- 2dB
Medium Power Output:
5 watts +/- 2dB
Low Power Output:
100 mW nominal
5-2.5. REQUIRED SYSTEM EQUIPMENT
The following equipment is the minimum required for a self contained LOS communications
device that will operate in the 400 to 420 MHz band.
Quantity Required
Part Number
01-P36744M003
URC-200 (V2) Transceiver
01-P39234N001
400 to 420 MHz URC-200 (V2) Module Assembly
Option
85-P35988M001
Antenna VHF/UHF
01-P04535L001
Handset, H-189/GR
15-P35722M001
Battery Box
5-4
Nomenclature
5-2.6. INSTALLATION AND OPERATION
5-2.6.1 Selecting 400 to 420 MHz Frequencies:
Press the [FREQ] key (keypad [1]) to select frequency entry mode. To select a frequency,
enter the desired frequency.
5-3. ECS- 8 OPTION - PART NUMBER 01-P42311K001
5-3.1. GENERAL INFORMATION
This option allows 8.33 kHz tuning in the VHF/UHF bands, and user selectable 8.33 kHz
receive channel spacing in the 117.9750 to 136.9750 MHz band.
It also allows the operator to place the radio into Aviation mode, which restricts the operating
frequency range from 117.9750 to 136.9750 kHz, with tuning increments of 25 and 8.33 kHz.
Channel spacings of 25 or 8.33 kHz are assigned automatically by frequency, following the ICAO
standards for frequency entry.
This mode also restricts modulation to AM, and allows PT only, disabling the CT feature of
the radio.
5-3.2. ENABLING AVIATION MODE
To place the transceiver in the Aviation Mode, start with the
transceiver powered off and then press and hold the 4 [AV]
keypad while turning on the power. The unit will remain in
the aviation mode through subsequent power cycles until it
is returned to the normal operating mode.
The transceiver will set all the channel data for each
channel to a default value (118 MHz, PT, AM, 25 kHz
bandwidth, low power).
To return to the normal operating mode, start with the
transceiver powered off and press and hold the 6 [MODE]
key while turning on power.
The transceiver will reset all the channel data for each
channel to the default values (225 MHz, PT, AM, 25 kHz
bandwidth, low power).
5-3.3. TUNING AND CHANNEL SPACING IN AVIATION MODE
When in the Aviation Mode, the manner in which the frequency is entered and displayed
determines the actual operating frequency and the channel spacing. The ICAO standard
mandates that specific channel spacings (either 25 or 8.33 kHz) shall be assigned to specific
frequency entries. This also means the frequency that is entered and displayed may be different
from the actual frequency the transceiver is tuned to.
The Aviation Mode Frequency Chart below shows an example of how to enter frequencies
to select the desired operating frequency and channel spacing. 118 MHz is used in the table as
an example; however any frequency from 117.9750 to 136.9750 kHz may be selected.
For example, if the desired actual operating frequency is 118.000 MHz with a channel
spacing of 25 kHz, enter 118000 using the keypad or remote command. The result will be what is
shown in line 1 of the chart. If, however, the desired frequency is still 118.000 MHz but this time
with a channel spacing of 8.33kHz, enter 118005 and the result will be as shown in line 2 of the
chart. Note that the transceiver will display 118005 even though it is tuned to 118.000 MHz.
In some cases, only 8.33 kHz channel spacing is allowed. Examine lines 3 and 4 of the
chart. Because tuning increments of 8.33 kHz are allowed, the next possible operating frequency
after 118.000 MHz is 118.0083 MHz. In this case only 8.33 kHz channel spacing is available for
5-5
this frequency. To tune this frequency, enter 118010 into the transceiver. The entered value is
what will be displayed even though the transceiver will be operating at 118.0083 MHz.
In a similar fashion, line 4 of the chart shows that the next available frequency is 118.0166
MHz. This also is only allowed to have a channel spacing of 8.33 kHz. But to operate at this
setting, enter 118015 to the transceiver.
Lines 5 and 6 of the chart show that the process repeats at this point.
If the user attempts to enter a frequency that is not allowed, the transceiver will simply not
accept the input until a valid value is entered.
Line
Number
10
11
12
13
14
15
16
17
18
19
Aviation Mode Frequency Chart
Frequency
Actual
Channel
Entered
Operating
bandwidth
(MHz)
Frequency
(KHz)
(MHz)
118.000
118.0000
25
118.005
118.0000
8.33
118.010
118.0083
8.33
118.015
118.0166
8.33
118.025
118.0250
25
118.030
118.0250
8.33
118.035
118.0333
8.33
118.040
118.0416
8.33
118.050
118.0500
25
118.055
118.0500
8.33
118.060
118.0583
8.33
118.065
118.0666
8.33
118.075
118.0750
25
118.080
118.0750
8.33
118.085
118.0833
8.33
118.090
118.0916
8.33
118.100
118.1000
25
118.105
118.1000
8.33
etc.
etc.
etc.
5-3.4. TUNING INCREMENT VS. CHANNEL SPACING, ELECTRICAL CHARACTERISTICS
The terms “tuning increment” and “channel spacing” are often misinterpreted. By definition:

The “tuning increment” is the minimum incremental change in operating frequency of which a
transceiver is capable.

The “channel spacing” is the window (or the bandwidth in kHz) that a tuned transceiver will
operate in and represents the minimum acceptable adjacent channel separation. This
window or bandwidth is determined by the receiver’s IF selectivity (bandwidth). In the URC200 (V2), whether the tuning increment is 5kHz, 12.5kHz, 8.33kHz, or 25kHz the IF selectivity
does not change. (The IF selectivity specifications for the URC-200 (V2) is outlined in
Table 1-1 of this manual.
NOTE
Exercise care when communicating between various transceivers. If a 5kHz,
8.33kHz, or 12.5kHz tuning increment is used, the URC-200 (V2) Transceiver could
receive an adjacent channel’s signal. Depending what the channel spacing
specification is of the adjacent channel transceiver, the URC-200 (V2) Transceiver
may not be able to communicate back to it unless it is re-tuned to the on-channel
frequency of the adjacent channel transceiver.
5-6

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