Codan Radio Communications UT-4E900 AUDIO AND PAGING BASE STATION TRANSMITTER User Manual
Codan Radio Communications AUDIO AND PAGING BASE STATION TRANSMITTER Users Manual
Users Manual
© 2007–2011 Daniels Electronics Ltd. All rights reserved. No part
of this publication may be reproduced, stored in a retrieval system
or transmitted in any form or by any means, electronic, mechanical,
photocopying, recording or otherwise, without the prior written consent
of Daniels Electronics Ltd.
The stylized “Daniels Electronics Ltd.” and “DE” logo are registered
Canadian and US trademarks of Daniels Electronics Ltd.
The stylized “Daniels Electronics Ltd.” and “DE” logo are trademarks of
Daniels Electronics Ltd.
Document Number:
Revision:
Revision Date:
Daniels Electronics Ltd.
Victoria, BC
PRINTED IN CANADA
MT-4E VHF & UHF
RECEIVER & TRANSMITTER
INSTRUCTION MANUAL
136–174 MHZ / 380–406 MHZ / 406–470 MHZ /
470–520 MHZ / 768–869 MHZ / 896–960 MHZ
Covers Models:
VR-4E150-00-000 UR-4E768-00-000
VR-4E150-A0-000 UR-4E800-00-000
UR-4E380-00-000 UR-4E850-00-000
UR-4E420-00-000 VT-4E150-00-800
UR-4E420-A0-000 UT-4E380-00-600
UR-4E440-00-000 UT-4E450-00-800
UR-4E460-00-000 UT-4E500-00-800
UR-4E460-A0-000 UT-4E850-00-300
UR-4E500-00-000 UT-4E900-00-300
IM08-MT-4E-TXRX
P1162
Jun 2011
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This document has been produced, veried and controlled in accordance
with Daniels Electronics’ Quality Management System requirements.
Please report any errors or problems to Daniels Electronics’ Customer
Service Department.
DOCUMENT CONTROL
The user’s authority to operate this equipment could be revoked through
any changes or modications not expressly approved by Daniels
Electronics Ltd.
The design of this equipment is subject to change due to continuous
development. This equipment may incorporate minor changes in detail
from the information contained in this manual.
Operation is subject to the following two conditions: (1) this device may
not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the
device.
NOTE
DOCUMENT REVISION
DEFINITION
Daniels Electronics Ltd. utilizes a three-level revision system. This
system enables Daniels to identify the signicance of a revision.
Each element of the revision number signies the scope of change as
described in the diagram below.
Major Revisions:
The result of a major change to
product function, process or requirements.
Minor Revisions:
The result of a minor change to
product, process or requirements.
Editorial Revisions:
The result of typing corrections or
changes in formatting, grammar or wording.
1-0-0
Three-level revision numbers start at 1-0-0 for the rst release. The
appropriate element of the revision number is incremented by 1 for each
subsequent revision, causing any digits to the right to be reset to 0.
For example:
If the current revision = 2-1-1 Then the next major revision = 3-0-0
If the current revision = 4-3-1 Then the next minor revision = 4-4-0
If the current revision = 3-2-2 Then the next editorial revision = 3-2-3
The complete revision history is provided at the back of the document.
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RF Exposure Warning
Exposure to radio frequency (RF) energy has been identied as a potential environmental factor that must be
considered before a radio transmitter can be authorized or licensed. The FCC and IC have therefore developed
maximum permissible exposure (MPE) limits for eld strength and power density, listed in FCC 47 CFR 1.1310
and IC RSS-102 Issue 2 Sect 4. The FCC has furthermore determined that determination of compliance with
these exposure limits, and preparation of an Environmental Assessment (EA) if the limits are exceeded, is
necessary only for facilities, operations and transmitters that fall into certain risk categories, listed in FCC 47
CFR 1.1307 (b), Table 1. All other facilities, operations and transmitters are categorically excluded from making
such studies or preparing an EA, except as indicated in FCC 47 CFR 1.1307 (c) and (d).
Revised FCC OET Bulletin 65 (Edition 97-01) and IC RSS-102 Issue 2 provide assistance in determining
whether a proposed or existing transmitting facility, operation or device complies with RF exposure limits. In
accordance with OET Bulletin 65, FCC 47 CFR 1.1307 (b) and RSS-102 Issue Sect 2.5, this Daniels Electronics
Ltd. transmitter is categorically excluded from routine evaluation or preparing an EA for RF emissions and this
exclusion is sufcient basis for assuming compliance with FCC/IC MPE limits. This exclusion is subject to the
limits specied in FCC 47 CFR 1.1307 (b), 1.1310 and IC RSS-102 Issue 2 Sect 4. Daniels Electronics Ltd. has
no reason to believe that this excluded transmitter encompasses exceptional characteristics that could cause
non-compliance.
Notes:
• The FCC and IC’s exposure guidelines constitute exposure limits, not emission limits. They are relevant
to locations that are accessible to workers or members of the public. Such access can be restricted or
controlled by appropriate means (i.e., fences, warning signs, etc.).
• The FCC and IC’s limits apply cumulatively to all sources of RF emissions affecting a given site. Sites
exceeding these limits are subject to an EA and must provide test reports indicating compliance.
RF Safety Guidelines and Information
Base and Repeater radio transmitters are designed to generate and radiate RF energy by means of an external
antenna, typically mounted at a signicant height above ground to provide adequate signal coverage. To reduce
potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent
isotropically radiated power (EIRP) is not more than that permitted for successful communication. The following
antenna installation guidelines are extracted from Appendix A from OET Bulletin 65 and must be adhered to in
order to ensure RF exposure compliance:
Non-building-mounted Antennas:
Height above ground level to lowest point of antenna ≥ 10 m or
Power ≤ 1000 W ERP (1640 W EIRP)
Building-mounted Antennas:
Power ≤ 1000 W ERP (1640 W EIRP)
The following RF Safety Guidelines should be observed when working in or around transmitter sites:
• Do not work on or around any transmitting antenna while RF power is applied.
• Before working on an antenna, disable the appropriate transmitter and ensure a “DO NOT USE” or
similar sign is placed on or near the PTT or key-up control.
• Assume all antennas are active unless specically indicated otherwise.
• Never operate a transmitter with the cover removed.
• Ensure all personnel entering a transmitter site have electromagnetic energy awareness training.
For more information on RF energy exposure and compliance, please refer to the following:
1. FCC Code of Regulations; 47 CFR 1.1307 and 1.1310.
2. FCC OET Bulletin 65, Edition 97-01, “Evaluating Compliance with FCC Guidelines for
Human Exposure to Radiofrequency Electromagnetic Fields.”
3. http://www.fcc.gov/oet/rfsafety/.
4. IC RSS-102 Issue 2, “Radio Frequency Exposure Compliance of Radio Communication Apparatus.”
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Contents
General Information ...............................................................1
Introduction ................................................................................................ 1
Channel and Bank Selection ......................................................................3
Radio Service Software Programming ...................................5
Introduction ................................................................................................ 5
Radio System Congurations ................................................7
Repeater .................................................................................................... 7
Analog Fixed (Base) Station Interface ....................................................... 8
Digital Fixed (Base) Station Interface ........................................................8
VHF & UHF Receivers and Transmitters ...............................9
VHF & UHF Hardware Tuning and Troubleshooting .............11
Repair Note .............................................................................................. 11
Recommended Test Equipment ............................................................... 12
Receiver Jumpers .................................................................................... 13
Transmitter Jumpers ................................................................................ 14
Front Panel RJ45 Jack Pinouts ................................................................ 14
Receiver Troubleshooting ........................................................................ 15
Transmitter Troubleshooting .................................................................... 18
System Troubleshooting .......................................................................... 20
48-Pin Motherboard Interface Connector ................................................. 21
VHF and UHF Parts List ...................................................... 23
VHF / UHF Receiver Electrical Parts List ................................................. 23
VHF / UHF Receiver Mechanical Parts List ............................................. 24
VHF / UHF Receiver P25 Digital Firmware .............................................. 24
VHF / UHF Receiver and Transmitter Encryption .................................... 24
VHF / UHF Receiver and Transmitter RSS .............................................. 24
VHF / UHF Transmitter Electrical Parts List ............................................. 25
VHF / UHF Transmitter Mechanical Parts List ......................................... 25
VHF / UHF Transmitter P25 Digital Firmware .......................................... 25
700 / 800 / 900 MHz Receivers and Transmitters ................ 27
700 / 800 / 900 MHz Jumpers ............................................. 29
Receiver Jumpers .................................................................................... 29
Transmitter Jumpers ................................................................................ 30
Contents continued next page
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700 / 800 / 900 MHz Parts List ............................................. 31
700 / 800 MHz Receiver Electrical Parts ................................................. 31
700 / 800 MHz Receiver Mechanical Parts .............................................. 31
700 / 800 MHz Receiver P25 Digital Firmware ........................................ 32
700 / 800 / 900 MHz Receiver and Transmitter Encryption ..................... 32
700 / 800 / 900 MHz Receiver and Transmitter RSS ............................... 32
700 / 800 / 900 MHz Transmitter Electrical Parts ..................................... 32
700 / 800 / 900 MHz Transmitter Mechanical Parts ................................. 33
700 / 800 / 900 MHz Transmitter P25 Digital Firmware ........................... 33
Specication Data Sheets .................................................... 35
VHF and UHF Receiver Performance Specications .............................. 37
380–406 MHz Receiver Performance Specications ............................... 39
430–450 MHz Receiver Performance Specications ............................... 41
VHF and UHF Transmitter Performance Specications ........................... 43
VHF and UHF Physical Specications ..................................................... 44
380–406 MHz Transmitter Performance Specications ........................... 45
380–406 and 430–450 MHz Physical Specications ............................... 46
700 / 800 MHz Receiver Performance Specications .............................. 47
700 / 800 / 900 MHz Transmitter Performance Specications ................. 49
700 / 800 / 900 MHz Physical Specications ........................................... 50
Glossary of Terms ................................................................ 51
Contents (continued)
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1
INTRODUCTION
The MT-4E Receiver and Transmitter are FM
radio modules capable of analog operation
in 12.5 kHz (narrow band) or 25 kHz (wide
band) channels. A rmware upgrade may be
purchased to allow P25 Digital operation.
Modular design allows each of the receiver and
transmitter’s internal modules to be individually
assembled and tested, which facilitates
construction, tuning and general maintenance.
The MT-4E Receiver and Transmitter combine
state of the art performance in a compact
modular enclosure for applications ranging from
remote mountain top repeaters to congested
urban radio environments. Each module is
characterized by dependable, low maintenance
performance under the most severe
environmental conditions.
The MT-4E Receiver and Transmitter are
primarily software controlled radio modules,
allowing tuning, programming and maintenance
to be done via software service with few
hardware adjustments required.
The MT-4E series is compatible with all Daniels’
subrack and base station enclosures. It supports
a basic analog interface and may be used in
a mixed system with MT-3 and MT-4 series
receivers and transmitters.
P25 Digital Mode
When the P25 rmware upgrade is purchased,
the MT-4E family of receivers and transmitters
may be congured for P25 Digital operation,
or mixed mode operation. In a repeater
conguration, the receiver passes the complete
P25 Digital voice packet directly to the
transmitter so no P25 Digital information is lost.
All P25 specications, operational description
and information contained in this instruction
manual require the P25 rmware upgrade to
function. If the MT-4E Receiver and Transmitter
are purchased without the P25 rmware
upgrade, the radio will program and operate in
analog mode only.
NOTE: This equipment is not to be operated
within the frequency band
406–406.1 MHz unless specically
authorized by the Federal
Communications Commission or Industry
Canada in conjunction with COSPAS /
SARSAT.
GENERAL INFORMATION
NOTE: The General Information and the Theory of Operation sections are common for all models of
MT-4E Receivers and Transmitters. Information that is specic to individual models will be
identied where relevant.
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General Information
2
Secure Communications
The receiver and transmitter are capable of decoding and encoding secure communications if a
DES-OFB / AES Encryption Module is installed. To successfully decode or encode a transmission,
the encryption module must be programmed with a valid encryption key using the Motorola KVL 3000
Plus Keyloader in conjunction with a Daniels Keyloader Cable. The Daniels Keyloader Cable plugs
into the front panel RJ45 jack on the front of the receiver or transmitter module.
Consult Keyloader instructions for details on loading a key. A loaded key may be zeroized by pulling
the CLEAR KEYS 1, then the CLEAR KEYS 2 inputs to ground 500 ms apart. Alternately, the
CI-BC-4E Base Controller or Universal Interface Card (UIC) may be used to clear the keys for all
modules in a system with a single key press of the switch marked ZEROIZE KEY. The CI-BC-4E
Base Controller can also be used to control whether the transmitter outputs a secure or a clear signal.
Firmware Upgrades
Receiver and transmitter rmware upgrading is performed with the PC-based rmware ashing
software. A USB Type A to 5-pin Mini-B cable is used to connect the USB port of an IBM-compatible
computer to the USB port on the front panel of the receiver or transmitter module.
Firmware upgrades can be found on the Daniels Electronics Ltd. website at www.danelec.com.
MT-4E Receiver Family Models
Following are the models in the MT-4E Receiver family:
VR-4E150-00-000 UR-4E460-00-000
VR-4E150-A0-000 UR-4E460-A0-000
UR-4E380-00-000 UR-4E500-00-000
UR-4E420-00-000 UR-4E768-00-000
UR-4E420-A0-000 UR-4E800-00-000
UR-4E440-00-000 UR-4E850-00-000
MT-4E Transmitter Family Models
Following are the models in the MT-4E Transmitter family:
VT-4E150-00-800
UT-4E380-00-600
UT-4E450-00-800
UT-4E500-00-800
UT-4E850-00-300
UT-4E900-00-300
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General Information 3
CHANNEL AND BANK SELECTION
Four channel select lines, CSEL 0 – CSEL 3, from the motherboard are brought into the receiver and
transmitter modules by the 48-pin rear connector, allowing selection of 16 different channels. These
signals are normally pulled low in the receiver and transmitter, but are typically set by jumpers on
the motherboard to select Channel 1 by default. In addition, a bank select input is provided to switch
between Bank A and B, each of which has 16 channels. The Bank select line normally oats high
(+5 V), selecting Bank A, but may be pulled low or high externally to select Bank B.
Channel and Bank Select Line Mapping
The table below shows the relationship between the states of the bank and channel select lines. Note
that the channel select lines follow a binary pattern, but that the binary “0” represents Channel 1.
The Bank A/B select line normally oats high (+5 V), selecting Bank A, but may be pulled low or high
externally via the Bank A/B select line.
BANK A/B CSEL 3 CSEL 2 CSEL 1 CSEL 0
BANK
SELECTED
CHANNEL
SELECTED
HI LO LO LO LO A 1
HI LO LO LO HI A 2
HI LO LO HI LO A 3
HI LO LO HI HI A 4
HI LO HI LO LO A 5
HI LO HI LO HI A 6
HI LO HI HI LO A 7
HI LO HI HI HI A 8
HI HI LO LO LO A 9
HI HI LO LO HI A 10
HI HI LO HI LO A 11
HI HI LO HI HI A 12
HI HI HI LO LO A 13
HI HI HI LO HI A 14
HI HI HI HI LO A 15
HI HI HI HI HI A 16
LO LO LO LO LO B 1
LO LO LO LO HI B 2
LO LO LO HI LO B 3
LO LO LO HI HI B 4
LO LO HI LO LO B 5
LO LO HI LO HI B 6
LO LO HI HI LO B 7
LO LO HI HI HI B 8
LO HI LO LO LO B 9
LO HI LO LO HI B 10
LO HI LO HI LO B 11
LO HI LO HI HI B 12
LO HI HI LO LO B 13
LO HI HI LO HI B 14
LO HI HI HI LO B 15
LO HI HI HI HI B 16
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5
RADIO SERVICE SOFTWARE
PROGRAMMING
INTRODUCTION
NOTE: This manual contains general information about Radio Service Software (RSS). Software
revisions occur regularly. For current RSS versions and instructions, refer to up-to-date help
les on the Daniels Electronics website (www.danelec.com > Products > Software > Radio
Service Software (RSS) > RSS Download Page). Once RSS is downloaded with either the full
or demo version, click Help to access the help les.
Receiver and transmitter programming is performed with the PC-based RSS. A USB Type A to 5-pin
Mini-B cable (included with the software) is used to connect the USB port of an IBM-compatible
computer to the USB port on the front panel of the receiver or transmitter module.
The RSS allows the receiver or transmitter to be programmed for:
• operating frequencies
• CTCSS and DCS signaling
• P25 Digital settings, such as NAC and TGID
• modulation type
• many other parameters
System Recommendations:
• Microsoft Windows 2000
• Microsoft Windows XP
Recommended Minimum Specication:
• Pentium III Processor – 500 MHz
• 256 MB Memory (RAM)
• 1 GB Free Disk Space
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Radio Service Software Programming
6
Installation
The RSS should install automatically once the CD is inserted. If not, run SETUP.EXE, located on
the CD.
NOTE: The receiver and transmitter must be programmed separately.
Once the connections are made, the RSS may be run on the computer and the radio switched on.
The rst time a receiver or transmitter is connected, the USB drivers will need to be installed from the
CD using the Hardware Update Wizard.
To test the connection:
Choose the appropriate module from the Select Device drop-down list.1.
Click 2. Congure on the main screen to open the Receiver or Transmitter Conguration window.
Click 3. Rx ID (or Tx ID).
Click 4. Read.
The serial number, model number, rmware version and last programmed date should appear in the
appropriate elds.
RSS Programming Mode
Programming options are divided into two categories – Global Settings and Channel Settings. When
the receiver or transmitter menu is selected from the main screen, both the global and channel
settings for the current channel are displayed.
The RSS may be used to save a receiver or transmitter conguration to disk. This function allows the
user to save a standard conguration and use it as a starting conguration for all modules. An archive
of congurations from each radio system in operation may also be kept so that replacement radios
can be programmed easily.
NOTE: If the MT-4E Receiver or Transmitter is purchased without the P25 Digital rmware upgrade,
the P25 Digital options will not be available in the RSS.
RSS Service Mode
RSS Service Mode allows tuning, testing and setup of the receiver and transmitter modules. Analog
and P25 Digital test modes, such as Bit Error Rate testing and Test Patterns generation can be
selected by the RSS. Audio Levels, RF Power Output and Reference Oscillator adjustments can also
be performed in RSS Service Mode.
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7
RADIO SYSTEM
CONFIGURATIONS
REPEATER
The MT-4E series receivers and transmitters may be congured in a repeater conguration. The
standard way of setting up a repeater system is to connect the receiver to the transmitter through a
Radio Interconnect Cable plugged into the RJ45 CNTL BUS connectors on the front panels of each
radio module. This cable routes analog and digital COR / PTT signals and LVDS Serial Data from
the receiver to the transmitter in both analog and P25 Digital mode. The Radio Interconnect Cable
may be connected directly from the receiver to the transmitter, or may be routed through a Repeater
Control Card.
A typical conguration is to set up the repeater to re-transmit an incoming signal in the same mode as
it is received (i.e., normally, you would want a received analog signal to be repeated as analog and a
received digital signal to be repeated as digital). This requires the receiver and transmitter modules to
be programmed in Mixed Mode of operation through the RSS. The repeater may also be programmed
to operate in analog or P25 Digital mode only.
Mixed Mode Repeat operation occurs as follows:
1. The receiver determines whether an incoming signal is analog or digital and asserts either the ANALOG
COR or DIGITAL COR signal line on the front panel RJ45 CNTL BUS connector. LVDS Serial Data is sent to
the RJ45 CNTL BUS connector as well.
2. The COR signal and LVDS Serial Data are transferred over the Radio Interconnect Cable directly to the
transmitter or are routed through a Repeater Control Card.
3. The transmitter senses the incoming ANALOG PTT or DIGITAL PTT signal from the front panel RJ45 CNTL
BUS connector and keys up in analog mode or P25 Digital mode. LVDS Serial Data is routed through the
transmitter for transmission.
An alternate way of setting up a repeater system is to connect the receiver to the transmitter through
an Audio Control Card or Base Controller. These control cards route analog audio and a single
COR / PTT signal from the receiver to the transmitter. This conguration is recommended for analog
repeater systems only.
The receiver and transmitter have no connection between them apart from the audio (Audio Control
Card or Base Controller only), COR / PTT signals and LVDS Serial Data lines. The transmitter does
not get any information from the receiver about which frequency or channel number to key up on.
The receiver and transmitter channel is determined by the state of the channel select lines and bank
select line.
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Radio System Congurations
8
ANALOG FIXED (BASE) STATION INTERFACE
The MT-4E series receivers and transmitters may be congured in a xed (or base) station
conguration with an analog interface. An Audio Control Card or Base Controller is added to the
system for E&M control. For tone remote control of the system, a Tone Remote Adapter is added to
the system along with the base controller. The audio control card or the base controller will also allow
for repeat capability of the system using analog audio as the repeat path.
The base controller is used for system control of encryption and decryption of the P25 Digital voice
messages. Optional decryption or encryption modules are required in the receiver and transmitter
modules.
DIGITAL FIXED (BASE) STATION INTERFACE
The MT-4E series receivers and transmitters may be congured in a xed (or base) station
conguration with a digital interface. A universal interface card (UIC) is added to the system for
Ethernet control.
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VHF & UHF RECEIVERS
AND TRANSMITTERS
The following section provides information that is
primarily for VHF / UHF receiver and transmitter
modules.
For specic information on 700 / 800 / 900 MHz
receiver and transmitter modules, see the
700 / 800 / 900 MHz section in this manual.
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VHF & UHF HARDWARE TUNING
AND TROUBLESHOOTING
REPAIR NOTE
MT-4E Receivers and Transmitters employ a high
percentage of surface mount components which
should not be removed or replaced using an
ordinary soldering iron. Removal and replacement
of surface mount components should be
performed only with specically designed surface
mount rework and repair stations complete with
Electrostatic Discharge (ESD) protection.
When removing surface mount solder jumpers, it
is recommended to use solder wick braid in place
of vacuum-type de-soldering tools. This will help
prevent damage to the circuit boards.
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VHF & UHF Hardware Tuning and Troubleshooting
12
RECOMMENDED TEST EQUIPMENT
Alignment of the receiver and transmitter requires the following test equipment or its equivalent.
Power supply – Regulated +9.5 VDC at 2 A Phillips PM 2811
Power Supply – Regulated +13.8 VDC at 2 A Topward TPS-4000
Oscilloscope / Multimeter Fluke 97 Scopemeter
Current Meter Fluke 75 Multimeter
Communications Service Monitor (Analog) Marconi Instruments 2965A or equivalent
Communications Service Monitor (P25 Digital and Analog) IFR 2975
Alignment Tools Daniels A-TK-04
It is recommended that the radio communications test set be frequency-locked to an external
reference (WWVH, GPS, Loran C) so that the high-stability local oscillator may be accurately set.
Complete Receiver and Transmitter Alignment
A complete receiver and transmitter alignment is performed at the factory and should not be required
under normal circumstances. A large change in receiver or transmitter operating frequency, as
discussed in the next section, or a replacement of major receiver or transmitter sub-assembly
modules, may require a complete realignment operation.
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VHF & UHF Hardware Tuning and Troubleshooting 13
RECEIVER JUMPERS
VHF / UHF Receiver Mainboard
PCB 50164
Jumper Default Position Function / Description
JU1 IN When installed enables Clear Keys 1 Input
JU2 IN When installed enables Clear Keys 2 Input
JU3 IN When installed enables power to Discriminator Output amplier
JU4 OUT RX Mode Pullup
JU5 OUT When installed bypasses AC coupling on the Discriminator output
JU6 IN RX Secure / Clear Pullup
JU7 OUT When installed enables power to Disc LPF
JU8 OUT COR Pullup
JU9 X Balanced Audio Transformer (X: Active, Y: Bypass)
JU10 X Balanced Audio Transformer (X: Active, Y: Bypass)
JU11 IN When installed enables power to Balanced Audio Output Amplier
JU12 OUT Increase Balanced Audio Gain by 2.7 dB
JU13 OUT Disable 600 Ω Audio Output; Enable Low Impedance Audio Output
JU14 X Balanced Audio Transformer (X: Active, Y: Bypass)
JU15 OUT For factory testing purposes only (power to coax for RF Preselector)
JU16 IN Isolate IF Filter Stage
JU17 IN For factory testing purposes only (RX Main to DSP on UDB)
JU18 IN For factory testing purposes only (RX Main to DSP on UDB)
JU19 IN For factory testing purposes only (RX Main to DSP on UDB)
JU20 OUT For factory testing purposes only (RX Main to DSP on UDB)
JU21 IN For factory testing purposes only (RX Main to DSP on UDB)
JU22 IN For factory testing purposes only (RX Main to DSP on UDB)
JU23 IN For factory testing purposes only (RX Main to DSP on UDB)
JU24 IN For factory testing purposes only (supplies power to IF VREF)
JU25
JU26
JU27
X
X
X
Communications for ENCRYPT -MT4E-XX1
X: synchronous
Y: asynchronous
JU28 --- Does not exist
JU29 IN UDB MCLR
JU30 IN DSP GPIO5
JU31 IN DSP GPIO6
JU32 Y X: ENCRYPT-MT4E-XX
Y: ENCRYPT-MT4E-XX1
Selects which UCM installed
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VHF & UHF Hardware Tuning and Troubleshooting
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TRANSMITTER JUMPERS
VHF / UHF Transmitter Mainboard
PCB 50156
Jumper Default Position Function / Description
JU1 X X: A/D Front Panel Switch selects transmitter A/D mode
Y: A/D External Input selects transmitter A/D mode
JU2 Y X: MIC OUT connects to Microphone Audio Input
Y: MIC IN connects to Microphone Audio input
JU3 X X: 600 Ω Audio Transformer
Y: Bypass Transformer
JU4 IN When installed selects 600 Ω resistance to ground
JU5 OUT When installed enables Clear Keys 1 Input*
JU6 OUT When installed enables Clear Keys 2 Input*
JU7 X X: 600 Ω Audio Transformer
Y: Bypass Transformer
JU8 X X: 600 Ω Audio Transformer
Y: Bypass Transformer
JU9 OUT When installed bypasses AC coupling on the Subtone / Direct Modulation input.
JU10 X X: ENCRYPT-MT4E-XX
Y: ENCRYPT-MT4E-XX1
Selects which UCM installed
JU11 OUT Changes gain for TCXO / MOD input to synthesizer
JU12 X X: Direct MOD input
Y: Spare
Select source for the Spare input.
JU13 X X: Spare
Y: DSP Bypass
Select source for the Spare input.
JU14 OUT When installed disables AC coupling of direct MOD input.
*Installed ony if encryption is enabled.
FRONT PANEL RJ45 JACK PINOUTS
A single, 8-position RJ45 jack is mounted on the front panel of the receiver and transmitter. The
following are the connections on the RJ45 jack.
Pin Signal
1 CRYPTO MODULE KEYLOAD
2 UNUSED SPARE
3ANALOG COR / PTT
4 LVDS DATA A
5 LVDS DATA B
6DIGITAL COR / PTT
7 NO CONNECTION
8 NO CONNECTION
Shield GROUND
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
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VHF & UHF Hardware Tuning and Troubleshooting 15
RECEIVER TROUBLESHOOTING
The receiver is composed of four main components; the receiver mainboard, the synthesizer module,
the RF Preselector and the universal daughter board (UDB). An optional decryption module can be
installed in the receiver.
The following steps will help you determine the most likely sub-assembly that contains a fault and
may help you determine why the fault is occurring.
NOTE: The sub-assembly or the entire receiver can be sent back to Daniels Service section for
repair. Contact Daniels Service section before returning any product.
Before testing, the receiver should be in the subrack or connected to the subrack by means of an
Extender Card or kit. The main power to the system (+13.8 VDC) and the +9.5 VDC regulated supply
should be checked via the front panel of the system regulator.
Testing the Receiver
1. Flip the receiver front panel ON/OFF switch from the OFF position to the NORM position.
2. Check that the two front panel LEDs both turn ON for less than ve seconds and then turn OFF.
If this is not the case, the most likely fault is on the UDB, on the synthesizer, or on the receiver mainboard.
Make sure that the UDB and the synthesizer module are properly seated on the receiver mainboard.
3. Connect the receiver to the PC with the USB cable and run the Radio Service Software (RSS).
4. Select [P25 or Analog] Receiver.
5. Click Congure.
6. Click Read to read the receiver conguration.
If the RSS returns “Device Not Responding,” physically inspect the USB cable and connection, check the
Daniels USB driver and check that the USB is recognized by the Device Manager. If the RSS still does not
recognize the connection, the most likely fault is on the UDB.
7. Click Rx ID.
8. Click Read to read the Receiver ID.
Conrm that the Frequency Band in the Synthesizer ID Model Number matches the Frequency Band in
the Receiver Global Settings. If the settings do not match, the synthesizer will require replacement or the
programming will need to be changed to match the synthesizer hardware.
If the receiver is still not functioning properly, the module level check should be conducted in the
following order.
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VHF & UHF Hardware Tuning and Troubleshooting
16
Receiver Mainboard
Check the following test points on the receiver mainboard:
Test Point Signal Monitored Typical Voltage
TP1 Voltage from motherboard +13.8 VDC line +13.8 VDC**
TP2 Regulated +9.5 VDC from motherboard +9.5 VDC ± 5 %
TP9 Switched +13.8 VDC line from front panel switch +13.8 VDC**
TP37 +6.0 VDC supply +6.0 VDC ± 5 %
TP38 -6.0 VDC supply -6.0 VDC ± 5 %
TP54 +3.3 VDC supply +3.3 VDC ± 5 %
TP55 +1.2 VDC supply +1.2 VDC ± 5 %
TP56 +1.8 VDC supply +1.8 VDC ± 5 %
TP57 +2.5 VDC supply +2.5 VDC ± 5 %
TP58 +5.0 VDC supply +5.0 VDC ± 5 %
Test Points are shown on the VHF / UHF Receiver Jumper and Test Point Locator Illustrations.
If the test point voltages are within the specied range, the following tests further verify that the
receiver mainboard may not be the source of problem.
Apply a -30 dBm IF signal of the frequency specied (see the VHF and UHF Receiver Performance
Specications data sheet) to the receiver mainboard IF Input SMB connector. If the signal is properly
demodulated it proves that the receiver mainboard and UDB are in working condition. Proceed to
troubleshooting the synthesizer and UDB module.
** Refer to the Specication Data Sheets (located in this manual)
for the full Supply Voltage range.
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VHF & UHF Hardware Tuning and Troubleshooting 17
Synthesizer and UDB Module
The Synthesizer Module and UDB are bound together through their communication link. At this level
of fault diagnosis it is not feasible to isolate the problem between the two units.
If the receiver front panel ON/OFF switch is set from the OFF position to the NORM position and the two
front panel LEDs stay on, check that the synthesizer and the UDB are properly seated on the receiver
mainboard and check the following test points on the UDB. To access the UDB, the shield lid covering
the UDB will need to be removed.
Test Point Signal Monitored Typical voltage
TP1 Ground 0 VDC
TP2 Logic power +3.3 VDC ± 5%
TP3 DSP core supply +1.2 VDC ± 5%
TP4 CPLD core supply +1.8 VDC ± 5%
If the UDB voltages are not within the specied tolerances, it is most likely that the receiver
mainboard (which supplies these voltages to the UDB) is faulty or there is a short within the UDB.
If the UDB voltages are within the specied tolerances, inject a -70 dBm carrier on the receiver
frequency into the RF input and check the RSSI meter reading in RSS Service mode. If the RSSI
meter reading is low (< 30), perform the following test to verify that the synthesizer is locked on
frequency:
Disconnect the LO output SMB connector from the synthesizer to the RF Preselector and connect the
synthesizer LO output to a radio communication test set. Conrm that the synthesizer LO frequency
matches the Target Synthesizer RF OUT found in the “Reference Oscillator” eld of RSS Service
mode. The LO output should be approximately +7 dBm.
The frequency of the synthesizer LO output will be above or below the receiver frequency by the
IF frequency (see the VHF and UHF Receiver Performance Specications data sheet). Check that
this output is within the tolerance for the local oscillator frequency stability (see the VHF and UHF
Receiver Performance Specications data sheet). Also ensure that the RF frequency will change with
programmed channel changes in the RSS.
Receiver RF Preselector
Check the +9.5 VDC power supply wire to the RF Preselector. The supply voltage should be
+9.5 VDC ± 5 %. Inject a -30 dBm carrier on the receiver frequency into the RF Input and check that
the IF Output of the RF Preselector is equal to the specied IF frequency (see the VHF and UHF
Receiver Performance Specications data sheet) and the output can be demodulated through the
communication test set. If this is not the case, the synthesizer or the RF Preselector, or both, are
faulty.
To further isolate the fault, the LO output can be disconnected from the synthesizer and an LO input
can be applied from an external source to the RF Preselector. The frequency of the external LO input
should be the Target Synthesizer RF OUT found in the “Reference Oscillator” eld of RSS Service
mode. Check the 21.4 MHz output of the module using a communication test set.
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
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VHF & UHF Hardware Tuning and Troubleshooting
18
TRANSMITTER TROUBLESHOOTING
The transmitter is composed of four main components: the transmitter mainboard, the synthesizer
module, RF power amplier and universal daughter board (UDB). An optional encryption module can
also be installed in the transmitter.
The following steps will help you determine the most likely sub-assembly that contains a fault and
may help you determine why the fault is occurring.
NOTE: The sub-assembly or the entire transmitter can be sent back to Daniels Service section for
repair. Contact Daniels Service section before returning any product.
Before testing, the transmitter should be in the subrack or connected to the subrack by means of an
extender card or kit, and the main power to the system (+13.8 VDC) and the +9.5 VDC regulated
supply should be checked via the front panel of the system regulator. The transmitter RF output
should be terminated with a 50 Ω load of appropriate wattage or communications test set.
Testing the Transmitter
1. Flip the transmitter front panel NORM/ OFF/ KEY TX switch from the OFF position to the NORM position
2. Check that the two front panel LEDs both turn ON for less than two seconds and then turn OFF.
If this is not the case or the transmitter is not functioning properly, the following steps can be taken.
3. Connect the transmitter to the PC with the USB cable
4. Run the Radio Service Software (RSS).
5. Select [P25 or Analog] Transmitter.
6. Click Congure.
5. Click Read to read the transmitter conguration.
If the RSS returns “Device Not Responding,” physically inspect the USB cable and connection, check
the Daniels USB driver and check the connection through the Device Manager. If the RSS still does not
recognize the connection, the most likely fault is on the UDB.
6. Click Tx ID.
7. Click Read to read the transmitter ID.
Conrm that the frequency band in the Synthesizer ID Model Number matches the frequency band in the
Transmitter Global Settings. If the settings do not match, the synthesizer will require replacement or the
programming will need to be changed to match the synthesizer hardware.
If the transmitter is still not functioning properly, the module level check should be conducted in the
following order.
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
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VHF & UHF Hardware Tuning and Troubleshooting 19
Transmitter Mainboard
Check the following test points on the transmitter mainboard:
Test Point Signal Monitored Typical Voltage
TP1 Voltage from Motherboard +13.8 VDC Line +13.8 VDC**
TP2 Regulated +9.5 VDC from Motherboard +9.5 VDC ± 5 %
TP3 USB Connector Power +3.0 VDC or +5.0 VDC
TP4 Switched +13.8 VDC Line from Front Panel Switch +13.8 VDC**
Test Points are shown on the VHF / UHF Transmitter Jumper and Test Point Locator Illustrations.
If the test point voltages are within the specied range, it is most likely that the transmitter mainboard
is not the source of problem. Proceed to the following step.
Synthesizer and UDB Modules
The synthesizer module and UDB are bound together through their communication link. At this level
of fault diagnosis it is not feasible to isolate the problem between two units.
If the transmitter front panel NORM/OFF/ KEY TX switch is set from the OFF position to the NORM
position and the two front panel LEDs stay on, check that the synthesizer and the UDB are properly
seated on the transmitter mainboard and check the following test points on the UDB. To access the
UDB, the amplier sub-assembly and the shield lid covering the UDB will need to be removed:
Test Point Signal Monitored Typical Voltage
TP1 Ground 0 VDC
TP2 Logic power +3.3 VDC ± 5 %
TP3 DSP core supply +1.2 VDC ± 5 %
TP4 CPLD core supply +1.8 VDC ± 5 %
Test Points are shown on the VHF / UHF Transmitter Jumper and Test Point Locator Illustrations.
If the UDB voltages are not within the specied tolerances, the transmitter mainboard (that supplies
these voltages to the UDB) is most likely faulty. If the UDB voltages are within the specied
tolerances, it is likely that the synthesizer or the UDB, or both, are faulty.
If the transmitter front panel NORM/OFF/ KEY TX switch is set from the OFF position to the NORM
position; the two front panel LEDs both turn ON for less than two seconds and then turn OFF; and the
RF output power control is set at its maximum in the “Power Levels” eld of RSS Service mode, but
the RF output power is considerably less than 8.0 W:
• Ensure that Synthesizer Reference is set to Internal in the “Jumper Settings” eld of RSS Service mode.
• Ensure that the output of the synthesizer module on the RF cable is 0 dBm (± 2 dBm) and that the RF
frequency will change with programmed channel changes in the RSS. If this is not the case, it is likely that
the synthesizer or the UDB, or both, are faulty.
** Refer to the Specication Data Sheets (located in this manual)
for the full Supply Voltage range.
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
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VHF & UHF Hardware Tuning and Troubleshooting
20
Transmitter Amplier
Set the front panel switch on the transmitter to KEY TX and check that the transmitter output power is
approximately 0.5 to 8.0 W for VHF and UHF models.
Check the following pins on Connector J1 (while the transmitter is keyed):
Pin Signal Monitored Typical Voltage
1RF Enable / Power Control (+0.5 to +3.0 VDC
corresponds to 0.5 to 8.0 W RF Power Output)
+0.5 to +3.0 VDC
2 Regulated +9.5 VDC from motherboard +9.5 VDC ± 5%
3 Voltage from motherboard +13.8 VDC line +13.8 VDC**
If Pin 1 is not within tolerance, the most likely fault is in the UDB or synthesizer module. If Pins 1, 2
and 3 are within the specied tolerances and there is no RF output power, the most likely fault is in
the amplier.
To test the RF power amplier sub-assembly, set the output power to maximum using “Power Level
Adjustments” in RSS Service mode, and drive the input of the amplier with a 0 dBm RF signal. Check
that the RF power output is 8.0 W when the front panel switch is set to KEY TX.
SYSTEM TROUBLESHOOTING
If the radio system is not receiving or transmitting on the right frequency, check the Channel and Bank
Select lines of the receiver and transmitter modules. The motherboard has jumpers that allow one of
16 channels to be selected on a receiver or transmitter. The factory default is to have them all set to
ground the channel select lines CSEL 0 through CSEL 3, forcing the radio to operate on Channel 1.
On the receiver and transmitter there is also a Bank A/B line which usually oats high – selecting
Bank A. The receiver and transmitter have separate control of their channel select lines, so changing
receiver channels does not affect the transmitter channel.
If the Radio Service Software is failing partway through a read or write of the receiver, check that the
receiver is not squelching and unsquelching repeatedly during the read or write operation. Disconnect
the RF signal source from the receiver during the read or write operation.
** Refer to the Specication Data Sheets (located in this manual)
for the full Supply Voltage range.
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VHF & UHF Hardware Tuning and Troubleshooting 21
48-PIN MOTHERBOARD INTERFACE CONNECTOR
A 48-pin connector is used for interfacing the MT-4E Motherboard to the receiver and transmitter.
Receiver
Pin Name Pin Name Pin Name
D2 Relay Normally Open 1 [O/P] B2 +13.8 VDC [I/P] Z2 +13.8 VDC [I/P]
D4 Relay Common 1 [O/P] B4 Receive Secure / Clear* [O/P] Z4 No Connect
D6 Relay Normally Closed 1 [O/P] B6 +9.5 VDC [I/P] Z6 +9.5 VDC [I/P]
D8 Relay Normally Closed 2 [O/P] B8 No Connect Z8 No Connect
D10 Relay Common 2 [O/P] B10 Discriminator LPF [O/P] Z10 No Connect
D12 Relay Normally Open 2 [O/P] B12 COR* [O/P] Z12 COR* [O/P]
D14 Clear Keys 1* [I/P] B14 Discriminator [O/P] Z14 Squelch Override* [I/P]
D16 Clear Keys 2* [I/P] B16 No Connect Z16 No Connect
D18 No Connect B18 No Connect Z18 Bank A/B* [I/P]
D20 Channel Select 0 (LSB) [I/P] B20 SM-3 Speaker Audio [O/P] Z20 No Connect
D22 Channel Select 1 [I/P] B22 No Connect Z22 No Connect
D24 Channel Select 2 [I/P] B24 Signal Strength (RSSI) [O/P] Z24 RX Mode [O/P]
D26 Channel Select 3 (MSB) [I/P] B26 Balanced Audio 1 [O/P] Z26 Balanced Audio 2 [O/P]
D28 No Connect B28 Mute* [I/P] Z28 No Connect
D30 No Connect B30 Ground Z30 Ground
D32 No Connect B32 Ground Z32 Ground
Transmitter
Pin Name Pin Name Pin Name
D2 No Connect B2 +13.8 VDC [I/P] Z2 +13.8 VDC [I/P]
D4 No Connect B4 Microphone Audio Output [O/P] Z4 Microphone Audio Input [I/P]
D6 No Connect B6 +9.5 VDC [I/P] Z6 +9.5 VDC [I/P]
D8 No Connect B8 Isolated Positive PTT [I/P] Z8 Isolated Negative PTT [I/P]
D10 No Connect B10 PTT* [I/P] Z10 PTT* [I/P]
D12 No Connect B12 Bank A/B* [I/P] Z12 Bank A/B* [I/P]
D14 Clear Keys 1* [I/P] B14 PTT* [I/P] Z14 PTT* [I/P]
D16 Clear Keys 2* [I/P] B16 No Connect Z16 No Connect
D18 No Connect B18 Balanced Audio 2 [I/P] Z18 Balanced Audio 1 [I/P]
D20 Channel Select 0 (LSB) [I/P] B20 SM-3 Speaker Audio [I/P] Z20 No Connect
D22 Channel Select 1 [I/P] B22 Subtone [I/P] Z22 A*/D Mode Control [I/P]
D24 Channel Select 2 [I/P] B24 PTT Output* [O/P] Z24 Transmit Secure / Clear* [I/P]
D26 Channel Select 3 (MSB) [I/P] B26 Forward Power Alarm* [O/P] Z26 High VSWR Alarm* [O/P]
D28 No Connect B28 No Connect Z28 Direct Modulation
D30 No Connect B30 Ground Z30 Ground
D32 No Connect B32 Ground Z32 Ground
* Indicates an active low signal.
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VHF AND UHF PARTS LIST
VHF / UHF RECEIVER ELECTRICAL PARTS LIST
Part Number Description Product Qty
A11-RX4E-MAIN-01 RX MB,MT-4E 100-400MH INCL UDB UHF and VHF 1
A11-UDB UNIVERSAL DAUGHTER BOARD ALL 1
A11-FE4-150 RF PRESELECTOR CLASS B,136–174 VHF CLASS B 1
A11-FE4A-150 RF PRESELECTOR CLASS A,136–174 VHF CLASS A 1
A13-FE4-380 PRESELECTOR/4E, 380-406 MHz UHF (380-406) 1
A13-FE4-420 RF PRESELECTOR CLASS B,406–430 UHF (406-430) CLASS B 1
A13-FE4A-420 RF PRESELECTOR CLASS A,406–430 UHF (406-430) CLASS A 1
A13-FE4-440 PRESELECTOR/4E, 430-450 MHz UHF (430-450) 1
A13-FE4-460 RF PRESELECTOR CLASS B,450–470 UHF (450-470) CLASS B 1
A13-FE4A-460 RF PRESELECTOR CLASS A,450–470 UHF (450-470) CLASS A 1
A13-FE4-500 RF PRESELECTOR CLASS B,470–520 UHF (470-520) CLASS B 1
A64-OR4-150 SYNTHESIZER, RX, VHF,136–174 VHF 1
A64-OR4-380 SYNTHESIZER, RX/4E,UHF,380-406 UHF (380-406,430-450) 1
A64-OR4-440 SYNTHESIZER, RX ,UHF,406–470 UHF (406-430,450-470) 1
A64-OR4-500 SYNTHESIZER, RX ,UHF,470–520 UHF (470-520) 1
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
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VHF and UHF Parts List
24
VHF / UHF RECEIVER MECHANICAL PARTS LIST
Part Number Description Product Qty
3702-62501010 CASE, 14HP RF PLUG-IN, MT-3 RX ALL 1
3702-10000120 FASTENER, QUICK RELEASE, GRAY ALL 4
5630-12023250 GASKET, BeCu,3FINGER,.71",CLIP ALL 2
3702-10000614 HANDLE, FRONT PANEL, 14HP,GREY ALL 1
3702-33160011 HOLDER, PCB/EXTRACTOR,DIE CAST ALL 1
5671-250N062B HOLE PLUG, .250" HOLE,NYL.,BLK ALL 1
5783-15110977 INSULATOR,2.56" x 2.27",MYLAR ALL 1
3536-10111405 LABEL/LEXAN, 14HP, VHF: RED VHF 1
3536-10131410 LABEL/LEXAN,14HP,UHF/SM: BLACK UHF 1
5814-3M0LK00S LOCKWASHER, M3, SPLIT,A2 STEEL ALL 4
3702-10001214 NAMEPLATE, BLANK, 14HP, ALUM. ALL 1
5813-2M5SQ50S NUT, M2.5, SQUARE-5mm, A2 S/S ALL 2
3702-63001101 PANEL, REAR,POS.1,14HP EXTRSN. ALL 1
3802-61001082 PANEL/FRONT,W/IDENT: MT-4E RX ALL 1
5812-2M5PP12S SCREW, M2.5 x 12 PAN/PHIL, A2 ALL 1
5812-2M5FP14S SCREW, M2.5 x 14 FLAT/PHIL, A2 ALL 2
5812-2M5PP06S SCREW, M2.5 X 6, PAN/PHIL., A2 ALL 4
5812-2M5VP08S SCREW, M2.5x8,OVAL C/S/PHIL,A2 ALL 1
5812-3M0PP08T SCREW, M3 x 8, PAN/PHIL, BLACK ALL 4
5812-3M0VP08S SCREW, M3 x 8,OVAL C/S/PHIL,A2 ALL 6
VHF / UHF RECEIVER P25 DIGITAL FIRMWARE
Part Number Description Product Qty
APP-FIRM01-W-XX DIGITAL UPGRADE FIRMWARE, MT-4E RX ALL 1
VHF / UHF RECEIVER AND TRANSMITTER ENCRYPTION
Part Number Description Product Qty
ENCRYPT-MT4E-XX ENCRYPTION MODULE, MT-4E RX/TX ALL 1
VHF / UHF RECEIVER AND TRANSMITTER RSS
Part Number Description Product Qty
APP-RSS03-WC-XX RADIO SERVICE SOFTWARE, MT-4E ALL 1
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VHF and UHF Parts List 25
VHF / UHF TRANSMITTER ELECTRICAL PARTS LIST
Part Number Description Product Qty
A21-TX4E-MAIN-01 TX, MB ASSY, MT-4E, INCL UDB ALL 1
A11-UDB UNIVERSAL DAUGHTER BOARD ALL 1
A21-VPA155-08 TX POWER AMP, VHF130-180 MHz VHF 1
A23-UPA450-08 TX POWER AMP, UHF 380-512 MHz UHF 1
A64-OT4-150 SYNTHESIZER, TX, VHF,136-174 VHF 1
A64-OT4-380 SYNTHESIZER, TX/4E,UHF,380-406 UHF (380-406) 1
A64-OT4-440 SYNTHESIZER, TX, UHF,406-470 UHF (406-470) 1
A64-OT4-500 SYNTHESIZER, TX, UHF,470-520 UHF (470-520) 1
VHF / UHF TRANSMITTER MECHANICAL PARTS LIST
Part Number Description Product Qty
A89-MIC4-08 CABLE/CONN ASSY,MICROPHONE CON ALL 1
7910-WP0WP011 CABLE,SMB PLUG-PLUG,RG316,11cm ALL 1
3702-62502010 CASE, 14HP RF PLUG-IN, MT-3 TX ALL 1
3702-10000120 FASTENER, QUICK RELEASE, GRAY ALL 4
5630-12023250 GASKET, BeCu,3FINGER,.71",CLIP ALL 2
3702-10000614 HANDLE, FRONT PANEL, 14HP,GREY ALL 1
5671-250N062B HOLE PLUG, .250" HOLE,NYL.,BLK ALL 1
5783-15110977 INSULATOR,2.56" x 2.27",MYLAR ALL 1
3536-10111405 LABEL/LEXAN, 14HP, VHF: RED VHF 1
3536-10131410 LABEL/LEXAN,14HP,UHF/SM: BLACK UHF 1
5814-3M0LK00S LOCKWASHER, M3, SPLIT,A2 STEEL ALL 4
3702-10001214 NAMEPLATE, BLANK, 14HP, ALUM. ALL 1
5813-2M5SQ50S NUT, M2.5, SQUARE-5mm, A2 S/S ALL 2
3702-63002101 PANEL, REAR,POS.4,14HP EXTRSN. ALL 1
3802-61002121 PANEL/FRONT, W/IDENT: MT-4E TX ALL 1
5812-2M5PP12S SCREW, M2.5 x 12 PAN/PHIL, A2 ALL 2
5812-2M5FP14S SCREW, M2.5 x 14 FLAT/PHIL, A2 ALL 2
5812-2M5PP06S SCREW, M2.5 X 6, PAN/PHIL., A2 ALL 4
5812-3M0PP06S SCREW, M3 X 6, PAN/PHILLIPS,A2 ALL 2
5812-3M0PP08T SCREW, M3 x 8, PAN/PHIL, BLACK ALL 4
5812-3M0VP08S SCREW, M3 x 8,OVAL C/S/PHIL,A2 ALL 6
5812-5M0FP08S SCREW, M5 x 8, FLAT/PHIL., A2 ALL 4
VHF / UHF TRANSMITTER P25 DIGITAL FIRMWARE
Part Number Description Product Qty
APP-FIRM02-W-XX DIGITAL UPGRADE FIRMWARE, MT-4E TX ALL 1
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700 / 800 / 900 MHZ RECEIVERS
AND TRANSMITTERS
The following section provides information that is
primarily for 700 / 800 / 900 MHz receiver and
transmitter modules.
For specic information on VHF and UHF receiver
and transmitter modules, see the VHF and UHF
section.
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700 / 800 / 900 MHZ JUMPERS
RECEIVER JUMPERS
700 / 800 MHz Receiver Mainboard
PCB 50171
Jumper Default Position Function / Description
JU1 OUT Enable Clear Keys 1
JU2 OUT Enable Clear Keys 2
JU3 IN Enable Power to Discriminator Circuit
JU4 OUT Enable Pullup Resistor on RX_Mode
JU5 OUT Bypass 330 nF Audio Cap
JU6 IN Enable Pullup Resistor on RX_Sec / Clr
JU7 OUT Enable Power to Discriminator LPF Circuit
JU8 OUT Enable Pullup Resistor on COR
JU9 X Balanced Audio Transformer (X=Active, Y=Bypass)
JU10 X Balanced Audio Transformer (X=Active, Y=Bypass)
JU11 IN Enable Power to Balanced Audio Amplier
JU12 OUT Increase Balanced Audio Gain by 2.7 dB
JU13 OUT Disable 600 Ω Audio Output; Enable Low Impedance Audio Output
JU14 X Balanced Audio Transformer (X=Active, Y=Bypass)
JU15 X X: Synchronous
Y: Asynchronous
JU16 X X: Synchronous
Y: Asynchronous
JU17 X X: Synchronous
Y: Asynchronous
JU18 IN Synthesizer Programming
JU19 IN Synthesizer Programming
JU20 IN Synthesizer Programming
JU21 IN Enable 3.3 V Power to IF VREF
JU22 IN For factory testing purposes only (Isolate XTAL lter stage from circuit)
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700 / 800 / 900 MHz Jumpers
30
TRANSMITTER JUMPERS
700 / 800 / 900 MHz Transmitter Mainboard
PCB 50156
Jumper Default Position Function / Description
JU1 X X: A/D Front Panel Switch selects transmitter A/D mode
Y: A/D External Input selects transmitter A/D mode
JU2 Y X: MIC OUT connects to Microphone Audio Input
Y: MIC IN connects to Microphone Audio input
JU3 X X: 600 Ω Audio Transformer
Y: Bypass Transformer
JU4 IN When installed selects 600 Ω resistance to ground
JU5 OUT When installed enables Clear Keys 1 Input
JU6 OUT When installed enables Clear Keys 2 Input
JU7 X X: 600 Ω Audio Transformer
Y: Bypass Transformer
JU8 X X: 600 Ω Audio Transformer
Y: Bypass Transformer
JU9 OUT When installed bypasses AC coupling on the Subtone / Direct Modulation input.
JU10 X X: ENCRYPT-MT4E-XX
Y: ENCRYPT-MT4E-XX1
Selects which UCM installed
JU11 OUT Changes gain for TCXO / MOD input to synthesizer
JU12 X X: Direct MOD input
Y: Spare
Select source for the Spare input.
JU13 X X: Spare
Y: DSP Bypass
Select source for the Spare input.
JU14 OUT When installed disables AC coupling of direct MOD input.
*Installed ony if encryption is enabled.
JU23 IN Jumper for D&D Testing (Disconnect SSI Data Line)
JU24 IN Jumper for D&D Testing (Disconnect SSI Data Line)
JU25 IN Jumper for D&D Testing (Disconnect SSI Data Line)
JU26 OUT Jumper for D&D Testing (Disconnect SPI Data Line)
JU27 IN Jumper for D&D Testing (Disconnect SPI Data Line)
JU28 IN Jumper for D&D Testing (Disconnect SPI Data Line)
JU29 IN Jumper for D&D Testing (Disconnect SPI Data Line)
JU30 Y X: ENCRYPT-MT4E-XX Selects which UCM installed
Y: ENCRYPT-MT4E-XX1
700 / 800 MHz Receiver Mainboard Jumpers (continued)
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31
700 / 800 / 900 MHZ
PARTS LIST
700 / 800 MHZ RECEIVER ELECTRICAL PARTS
Part Number Description Qty
A14-RX4E-MAIN-01 RX,MB,MT-4E 700-900MH INCL UDB 1
A11-UDB UNIVERSAL DAUGHTER BOARD 1
A14-FE4-770 PRESELECTOR/4E,CLASS B,768-776 1
A15-FE4-800 PRESELECTOR/UR-4E, 799-824 MHz 1
A15-FE4-850 PRESELECTOR/UR-4E, 851-869 MHz 1
A64-OR4-800 SYNTHESIZER, RX/4E,UHF,764-960 1
700 / 800 MHZ RECEIVER MECHANICAL PARTS
Part Number Description Qty
3702-62501010 CASE, 14HP RF PLUG-IN, MT-3 RX 1
3702-10000120 FASTENER, QUICK RELEASE, GRAY 4
5630-12023250 GASKET, BeCu,3FINGER,.71”,CLIP 2
3702-10000614 HANDLE, FRONT PANEL, 14HP,GREY 1
3702-33160011 HOLDER, PCB/EXTRACTOR,DIE CAST 1
5671-250N062B HOLE PLUG, .250” HOLE,NYL.,BLK 1
5783-15110977 INSULATOR,2.56” x 2.27”,MYLAR 1
3536-10151405 LABEL/LEXAN, 14HP, UHF: BLUE 1
5814-3M0LK00S LOCKWASHER, M3, SPLIT,A2 STEEL 4
3702-10001214 NAMEPLATE, BLANK, 14HP, ALUM. 1
5813-2M5SQ50S NUT, M2.5, SQUARE-5mm, A2 S/S 2
5833-T2M55615 NUT, PRESS,M2.5,5.6mmOD,PC MNT 2
3702-63001101 PANEL, REAR,POS.1,14HP EXTRSN. 1
3802-61001082 PANEL/FRONT,W/IDENT: MT-4E RX 1
5812-2M0PP06S SCREW, M2 X 6, PAN/PHILLIPS,A2 4
5812-2M5PP12S SCREW, M2.5 x 12 PAN/PHIL, A2 1
5812-2M5FP14S SCREW, M2.5 x 14 FLAT/PHIL, A2 2
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700 / 800 / 900 MHz Parts List
32
700 / 800 / 900 MHZ TRANSMITTER ELECTRICAL PARTS
Part Number Description Qty
A21-TX4E-MAIN-01 TX, MB ASSY, MT-4E, INCL UDB 1
A11-UDB UNIVERSAL DAUGHTER BOARD 1
A25-UPA835-03 POWER AMP, TX, 3W, 768-869 MHz 1
A64-OT4-800 SYNTHESIZER, TX/4E,UHF,760-960 1
700 / 800 MHZ RECEIVER P25 DIGITAL FIRMWARE
Part Number Description Product Qty
APP-FIRM01-W-XX DIGITAL UPGRADE FIRMWARE, MT-4E RX ALL 1
700 / 800 / 900 MHZ RECEIVER AND
TRANSMITTER ENCRYPTION
Part Number Description Product Qty
ENCRYPT-MT4E-XX ENCRYPTION MODULE, MT-4E RX/TX ALL 1
700 / 800 / 900 MHZ RECEIVER AND TRANSMITTER RSS
Part Number Description Product Qty
APP-RSS03-WC-XX RADIO SERVICE SOFTWARE, MT-4E ALL 1
Part Number Description Qty
5812-2M5PP06S SCREW, M2.5 X 6, PAN/PHIL., A2 4
5812-2M5VP08S SCREW, M2.5x8,OVAL C/S/PHIL,A2 1
5812-3M0PP08T SCREW, M3 x 8, PAN/PHIL, BLACK 4
5812-3M0VP08S SCREW, M3 x 8,OVAL C/S/PHIL,A2 6
5917-7B4BM30T STANDOFF, 7/32OD,1/4L,M3,SWAGE 2
5927-5SFBM25T STANDOFF,5.5mm OD,4.5mm L,M2.5 3
700 / 800 MHz Receiver Mechanical Parts (continued)
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700 / 800 / 900 MHz Parts List 33
700 / 800 / 900 MHZ TRANSMITTER MECHANICAL PARTS
Part Number Description Qty
A89-MIC4-08 CABLE/CONN ASSY,MICROPHONE CON 1
7910-WP0WP011 CABLE,SMB PLUG-PLUG,RG316,11cm 1
3702-62502010 CASE, 14HP RF PLUG-IN, MT-3 TX 1
3702-10000120 FASTENER, QUICK RELEASE, GRAY 4
5630-12023250 GASKET, BeCu,3FINGER,.71”,CLIP 2
3702-10000614 HANDLE, FRONT PANEL, 14HP,GREY 1
5671-250N062B HOLE PLUG, .250” HOLE,NYL.,BLK 1
5783-15110977 INSULATOR,2.56” x 2.27”,MYLAR 1
3536-10151405 LABEL/LEXAN, 14HP, UHF: BLUE 1
5814-3M0LK00S LOCKWASHER, M3, SPLIT,A2 STEEL 4
3702-10001214 NAMEPLATE, BLANK, 14HP, ALUM. 1
5813-2M5SQ50S NUT, M2.5, SQUARE-5mm, A2 S/S 2
3702-63002101 PANEL, REAR,POS.4,14HP EXTRSN. 1
3802-61002121 PANEL/FRONT, W/IDENT: MT-4E TX 1
3702-64202050 PLATE ASSEMBLY, 8W AMP, ALUM. 1
5812-2M5PP12S SCREW, M2.5 x 12 PAN/PHIL, A2 2
5812-2M5FP14S SCREW, M2.5 x 14 FLAT/PHIL, A2 2
5812-2M5PP06S SCREW, M2.5 X 6, PAN/PHIL., A2 4
5812-3M0FP06S SCREW, M3 X 6, FLAT/PHIL., A2 2
5812-3M0PP06S SCREW, M3 X 6, PAN/PHILLIPS,A2 2
5812-3M0PP06S SCREW, M3 X 6, PAN/PHILLIPS,A2 5
5812-3M0PP08T SCREW, M3 x 8, PAN/PHIL, BLACK 4
5812-3M0VP08S SCREW, M3 x 8,OVAL C/S/PHIL,A2 6
5812-5M0FP08S SCREW, M5 x 8, FLAT/PHIL., A2 4
700 / 800 / 900 MHZ TRANSMITTER
P25 DIGITAL FIRMWARE
Part Number Description Product Qty
APP-FIRM02-W-XX DIGITAL UPGRADE FIRMWARE, MT-4E TX ALL 1
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35
SPECIFICATION
DATA SHEETS
This section contains detailed specications for
RF modules within the scope of this manual.
To verify performance and set-up test
procedures, please refer to these data sheets
when performing technical operations on the
equipment.
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Specication Data Sheets 37
VHF AND UHF RECEIVER
PERFORMANCE SPECIFICATIONS
NOTE: 380–406 MHz and 430–450 MHz Receiver specications are not included in these VHF /
UHF receiver specications; see the separate 380–406 MHz and 430–450 MHz receiver
specications following.
General
Frequency Range: 136–174 MHz (VHF) /
406–430 MHz, 450–470 MHz, 470–520 MHz (UHF)
Channel Spacing: 12.5, 15, 25 and 30 kHz
Channel Selection: VHF: 2.5 kHz, 5.0 kHz and 6.25 kHz
UHF: 6.25 kHz
Number of Channels: Preset capability for 2 banks of 16 channels
Channel Switching Range: ± 2.0 MHz
Compatibility: MT-3 and MT-4 Series Radio Systems; P25 interoperable*
System Impedance: 50 Ω (Type-N connector)
Frequency Generation: Internal Synthesizer
Reference Sensitivity: ≤ -118 dBm (0.28uV) for 12 dB SINAD /
≤ -118 dBm (0.28uV) for 5% BER*
Local Oscillator Frequency Stability: ± 1.0 ppm (VHF) / ± 0.5 ppm (UHF)
Adjacent Channel Rejection (Selectivity): Class A:
≥ 45 dB; Narrow band Analog
≥ 75 dB; Wide band Analog
≥ 60 dB; Digital*
Class B:
≥ 40 dB; Narrow band Analog
≥ 70 dB; Wide band Analog
≥ 60 dB; Digital*
Intermodulation Rejection: Class A:
≥ 75 dB; Narrow band and Wide band Analog
≥ 80 dB; Digital*
Class B:
≥ 70 dB; Narrow band and Wide band Analog
≥ 70 dB; Digital*
Spurious Response Rejection: Class A:
≥ 75 dB; Narrow band Analog
≥ 85 dB; Wide band Analog
≥ 90 dB; Digital*
Class B:
≥ 70 dB; Narrow band and Wide band Analog
≥ 70 dB; Digital*
Conducted Spurious Output Power: ≤ -95 dBm
Hum and Noise Ratio: ≥ 31 dB; Narrow band Analog
≥ 37 dB; Wide band Analog
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
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Specication Data Sheets
38
VHF and UHF Receiver Performance Specications (continued)
Audio Output: 600 Ω balanced line output (congurable for unbalanced line);
De-emphasis or Flat output, +3 dBm maximum level
Audio Distortion: Analog: ≤ 2.0% (25°C); ≤ 3.0% (-30˚C to +60˚C)
Digital as per TIA / EIA 102.CAAB*
Front Panel Controls: Receiver Power On (Norm) / Off
Squelch Disable (Push button)
Analog and Digital Receive LED indicators
COR Interface: 150 mA, 50V open drain power MOSFET
Supply Voltage: +13.8 VDC Nominal (range +10 to +17 VDC) †
+9.5 VDC Regulated
Supply Current: Class A:
< 250 mA; with no encryption module installed
< 280 mA; with encryption module installed
Class B:
< 115 mA; with no encryption module installed
< 145 mA; with encryption module installed
Operating Temperature Range: -30°C to +60°C
Operating Humidity: 95% RH (non-condensing) at +25°C
CTCSS Decode: Programmable to any of 42 CTCSS tones
DCS Decode: Programmable to any of 83 DCS sequences. Normal or inverted
DCS can be selected.
IC Certication No.: 142A-VR4E150A (VHF Class A)
142A-UR4E420A (UHF Low band Class A)
142A-UR4E460A (UHF High band Class A)
142A-VR4E150 (VHF Class B)
142A-UR4E420 (UHF Low band Class B)
142A-UR4E460 (UHF High band Class B)
142A-UR4E500 (UHF T-Band Class B)
FCC ID: n/a – Declaration of Conformity (DOC)
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
IM08-MT-4E-TXRX-P1162
Specication Data Sheets 39
380–406 MHZ RECEIVER
PERFORMANCE SPECIFICATIONS
General
Frequency Range: 380–406 MHz
Channel Spacing: 12.5, 15, 25 and 30 kHz
Channel Selection: 6.25 kHz
Number of Channels: Preset capability for 2 banks of 16 channels
Channel Switching Range: ± 2.0 MHz
Compatibility: MT-3 and MT-4 Series Radio Systems; P25 interoperable*
System Impedance: 50 Ω (Type-N connector)
Frequency Generation: Internal Synthesizer
Reference Sensitivity: ≤-116 dBm (0.35uV) for 12 dB SINAD
≤-116 dBm (0.35uV) for 5% BER
Local Oscillator Frequency Stability: ± 0.5 ppm
Adjacent Channel Rejection (Selectivity): ≥ 45 dB; Narrow Band Analog
≥ 75 dB; Wide Band Analog
≥ 60 dB; Digital*
Intermodulation Rejection: ≥ 75 dB; Narrow Band and Wide Band Analog
≥ 80 dB; Digital*
Spurious Response Rejection: ≥ 75 dB; Narrow Band and Wide Band Analog
≥ 90 dB; Digital*
Conducted Spurious Output Power: ≤ -95 dBm
Hum and Noise Ratio: ≥ 34 dB; Narrow Band Analog
≥ 40 dB; Wide Band Analog
Audio Output: 600 Ω balanced line output (congurable for unbalanced line);
De-emphasis or Flat output, +3 dBm maximum level
Audio Distortion: Analog: ≤ 2.0% (25°C); ≤ 3.0% (-30˚C to +60˚C)
Digital as per TIA / EIA 102.CAAB*
Front Panel Controls: Receiver Power On (Norm) / Off
Squelch Disable (Push button)
Analog and Digital Receive LED indicators
COR Interface: 150 mA, 50V open drain power MOSFET
Supply Voltage: +13.8 VDC Nominal (range +10 to +17 VDC) †
+9.5 VDC Regulated
Supply Current: < 270 mA; with no encryption module installed
< 300 mA; with encryption module installed
Operating Temperature Range: -30°C to +60°C
Operating Humidity: 95% RH (non-condensing) at +25°C
CTCSS Decode: Programmable to any of 42 CTCSS tones
DCS Decode: Programmable to any of 83 DCS sequences. Normal or inverted
DCS can be selected.
IC Certication No.: n/a
FCC ID: n/a
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
† For GSA BPA Contract: GSC-TFMG-BPA-09-002 the following specications apply:
Supply Voltage range: +10 to +18 VDC
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Specication Data Sheets 41
430–450 MHZ RECEIVER
PERFORMANCE SPECIFICATIONS
General
Frequency Range: 430–450 MHz
Channel Spacing: 12.5, 15, 25 and 30 kHz
Channel Selection: 6.25 kHz
Number of Channels: Preset capability for 2 banks of 16 channels
Channel Switching Range: ± 2.0 MHz
Compatibility: MT-3 and MT-4 Series Radio Systems; P25 interoperable*
System Impedance: 50 Ω (Type-N connector)
Frequency Generation: Internal Synthesizer
Reference Sensitivity: ≤-116 dBm (0.35uV) for 12 dB SINAD
≤-116 dBm (0.35uV) for 5% BER
Local Oscillator Frequency Stability: ± 0.5 ppm
Adjacent Channel Rejection (Selectivity): ≥ 45 dB; Narrow Band Analog
≥ 75 dB; Wide Band Analog
≥ 60 dB; Digital*
Intermodulation Rejection: ≥ 75 dB; Narrow Band and Wide Band Analog
≥ 80 dB; Digital*
Spurious Response Rejection: ≥ 75 dB; Narrow Band and Wide Band Analog
≥ 90 dB; Digital*
Conducted Spurious Output Power: ≤ -95 dBm
Hum and Noise Ratio: ≥ 34 dB; Narrow Band Analog
≥ 40 dB; Wide Band Analog
Audio Output: 600 Ω balanced line output (congurable for unbalanced line);
De-emphasis or Flat output, +3 dBm maximum level
Audio Distortion: Analog: ≤ 2.0% (25°C); ≤ 3.0% (-30˚C to +60˚C)
Digital as per TIA / EIA 102.CAAB*
Front Panel Controls: Receiver Power On (Norm) / Off
Squelch Disable (Push button)
Analog and Digital Receive LED indicators
COR Interface: 150 mA, 50V open drain power MOSFET
Supply Voltage: +13.8 VDC Nominal (range +10 to +17 VDC) †
+9.5 VDC Regulated
Supply Current: < 270 mA; with no encryption module installed
< 300 mA; with encryption module installed
Operating Temperature Range: -30°C to +60°C
Operating Humidity: 95% RH (non-condensing) at +25°C
CTCSS Decode: Programmable to any of 42 CTCSS tones
DCS Decode: Programmable to any of 83 DCS sequences. Normal or inverted
DCS can be selected.
IC Certication No.: n/a
FCC ID: n/a - Declaration of Conformity (DOC)
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
† For GSA BPA Contract: GSC-TFMG-BPA-09-002 the following specications apply:
Supply Voltage range: +10 to +18 VDC
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Specication Data Sheets 43
VHF AND UHF TRANSMITTER
PERFORMANCE SPECIFICATIONS
NOTE: 380–406 MHz Transmitter specications are not included in these VHF / UHF transmitter
specications; see the separate 380–406 MHz transmitter specications following.
General
Frequency Range: 136–174 MHz, 406–470 MHz, 470–520 MHz
Carrier Frequency Stability: ± 1.0 ppm (VHF) / ± 0.5 ppm (UHF)
Channel Spacing: 12.5, 15, 25 and 30 kHz
Channel Selection: VHF: 2.5 kHz, 5.0 kHz and 6.25 kHz
UHF: 6.25 kHz
Number of Channels: Preset capability for 2 banks of 16 channels
Compatibility: MT-3 and MT-4 Series Radio Systems; P25 interoperable*
RF Output Power: 0.5 to 8.0W Continuous
Emission Designators: Analog: 11K0F3E (Narrow band); 16K0F3E (Wide band)
Digital Paging: 9K2F1D
P25 Digital: 8K10F1E (Digital Voice); 8K10F1D (Digital Data)*
System Impedance: 50 Ω; Type-N connector
Duty Cycle: 100%; Continuous operation
Undesired Emissions:
(Adjacent Channel Power Ratio)
< -70 dBc, Analog
< -70 dBc, Digital*
Undesired Emissions:
(Conducted Spurious)
< -70 dBc @ 8.0 W RF Output
Intermodulation Attenuation: ≥ 45 dB Analog
≥ 45 dB Digital*
VSWR Protection: < 20:1 VSWR at all phase angles
Operating Temperature Range: -30˚C to +60˚C
Operating Humidity: 95% RH (non-condensing) at +25°C
Operating Voltage: +13.8 VDC Nominal (range +10 to +17 VDC) †
+9.5 VDC Regulated
Transmit Current: < 1.7A @ 2.0 W RF Output
< 2.8A @ 8.0 W RF Output
Stand By Current: <50 mA (no encryption installed)
<80 mA (with encryption modules installed)
Front Panel Controls: Transmitter Power On (Norm) / Off / Key Tx
Mic Mode: Analog / Digital
Analog and Digital Transmit LED indicators
PTT Time-Out-Timer: Programmable from 15 to 465 sec. (in increments of 15 sec., ± 5 sec.) or
innity (default 300 sec.) using Radio Service Software.
Audio Input: 600 Ω balanced or unbalanced input
(600 Ω or 15k Ω selectable input impedance)
Audio Frequency Response: Pre-emphasis; +1, -3 dB (300 to 3000 Hz)
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
† For GSA BPA Contract: GSC-TFMG-BPA-09-002 the following specications apply:
Supply Voltage range: +10 to +18 VDC
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
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Specication Data Sheets
44
VHF and UHF Transmitter Performance Specications (continued)
Audio Deviation Limiting: ± 2.5 kHz Narrow band, ± 5.0 kHz Wide band
Audio Distortion: < 3% THD; 1 kHz tone at 1.5 kHz or 3 kHz deviation
FM Hum and Noise Ratio: ≥ 40 dB (0.3 to 3.4 kHz De-emphasis off)
CTCSS Decode / Encode: Programmable to any of 42 CTCSS tones.
DCS Decode / Encode: Programmable to any of 83 DCS sequences. Normal or inverted
DCS can be selected. Turn-Off code optional.
IC Certication No.: 142A-VT4E150 (VHF)
142A-UT4E450 (UHF 406–470 MHz only)
FCC ID: H4JVT-4E150 (VHF)
H4JUT-4E450 (UHF)
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
VHF AND UHF PHYSICAL SPECIFICATIONS
Physical Dimensions: Width:
7.1 cm (2.8 in)
Height:
12.8 cm (5.05 in)
Depth:
19 cm (7.5 in)
Module Weight: Receiver: 1.2 kg (2.5 lbs.)
Transmitter: 1.4 kg (3.0 lbs.)
Corrosion Prevention: • Anodized aluminum construction
• Stainless steel hardware
• Gold-plated module connectors
Module Design: • Compact Eurostandard modular design
• Plug-in modules mate with the Daniels standard MT-4E repeater subrack
• Subracks / modules comply with IEEE 1101, DIN 41494 and IEC 297-3
(mechanical size / modular arrangement)
External Connections: RF Connection: Type-N connector located on the module front panel. Digital I/O
interface is made via RJ45 modular jack located on the front panel. Programming
interface is made via Mini-B USB 1.1 jack located on the front panel. Motherboard
connections (Audio, Power, and Control) are made through a 48-pin, gold-plated,
Type-F connector on the rear of the module. User connection made through mated
motherboard assembly of the radio subrack. Type-F connector complies with
DIN 41612 Level 2 (200 mating cycles, 4-day 10 ppm SO2 gas test with no functional
impairment and no change in contact resistance).
Handle Text Colour: Red (VHF) / Black (UHF)
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
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Specication Data Sheets 45
380–406 MHZ TRANSMITTER
PERFORMANCE SPECIFICATIONS
General
Frequency Range: 380–406 MHz
Carrier Frequency Stability: ± 0.5 ppm
Channel Spacing: 12.5, 15, 25 and 30 kHz
Channel Selection: 6.25 kHz
Number of Channels: Preset capability for 2 banks of 16 channels
Compatibility: MT-3 and MT-4 Series Radio Systems; P25 interoperable*
RF Output Power: 0.5 to 6.0W Continuous
Emission Designators: n/a
System Impedance: 50 Ω; Type-N connector
Duty Cycle: 100%; Continuous operation
Undesired Emissions:
(Adjacent Channel Power Ratio)
< -70 dBc, Wide Band Analog
< -60 dBc Narrow Band Analog
< -67 dBc, Digital*
Undesired Emissions:
(Conducted Spurious)
< -70 dBc @ 6.0W RF Output
Intermodulation Attenuation: ≥ 40 dB Analog
≥ 40 dB Digital*
VSWR Protection: < 20:1 VSWR at all phase angles
Operating Temperature Range: -30˚C to +60˚C
Operating Humidity: 95% RH (non-condensing) at +25°C
Operating Voltage: +13.8 VDC Nominal (range +10 to +17 VDC) †
+9.5 VDC Regulated
Transmit Current: < 1.7A @ 2.0W RF Output
< 2.8A @ 6.0W RF Output
Stand By Current: <50 mA (no encryption installed)
<80 mA (with encryption modules installed)
Front Panel Controls: Transmitter Power On (Norm) / Off / Key Tx
Mic Mode: Analog / Digital
Analog and Digital Transmit LED indicators
PTT Time-Out-Timer: Programmable from 15 to 465 sec. (in increments of 15 sec., ± 5 sec.) or
innity (default 300 sec.) using Radio Service Software.
Audio Input: 600 Ω balanced or unbalanced input
(600 Ω or 15k Ω selectable input impedance)
Audio Frequency Response: Pre-emphasis; +1, -3 dB (300 to 3000 Hz)
Audio Deviation Limiting: ± 2.5 kHz Narrow band, ± 5.0 kHz Wide band
Audio Distortion: < 2% THD; 1 kHz tone at 1.5 kHz or 3 kHz deviation
FM Hum and Noise Ratio: ≥ 40 dB Wide Band Analog (0.3 to 3.4 kHz De-emphasis off)
≥ 34 dB Narrow Band Analog (0.3 to 3.4 kHz De-emphasis off)
CTCSS Decode / Encode: Programmable to any of 42 CTCSS tones.
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
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Specication Data Sheets
46
380–406 MHz Transmitter Performance Specications (continued)
DCS Decode / Encode: Programmable to any of 83 DCS sequences. Normal or inverted
DCS can be selected. Turn-Off code optional.
IC Certication No.: n/a
FCC ID: n/a
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
380–406 AND 430–450 MHZ PHYSICAL SPECIFICATIONS
Physical Dimensions: Width:
7.1 cm (2.8 in)
Height:
12.8 cm (5.05 in)
Depth:
19 cm (7.5 in)
Module Weight: Receiver: 1.2 kg (2.5 lbs.)
Transmitter: 1.4 kg (3.0 lbs.)
Corrosion Prevention: • Anodized aluminum construction
• Stainless steel hardware
• Gold-plated module connectors
Module Design: • Compact Eurostandard modular design
• Plug-in modules mate with the Daniels standard MT-4E repeater subrack
• Subracks / modules comply with IEEE 1101, DIN 41494 and IEC 297-3
(mechanical size / modular arrangement)
External Connections: RF Connection: Type-N connector located on the module front panel. Digital I/O
interface is made via RJ45 modular jack located on the front panel. Programming
interface is made via Mini-B USB 1.1 jack located on the front panel. Motherboard
connections (Audio, Power, and Control) are made through a 48-pin, gold-plated,
Type-F connector on the rear of the module. User connection made through mated
motherboard assembly of the radio subrack. Type-F connector complies with
DIN 41612 Level 2 (200 mating cycles, 4-day 10 ppm SO2 gas test with no functional
impairment and no change in contact resistance).
Handle Text Colour: Black
MT-4E VHF & UHF Receiver & Transmitter Instruction Manual
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Specication Data Sheets 47
700 / 800 MHZ RECEIVER
PERFORMANCE SPECIFICATIONS
General
Frequency Range: 768–776 MHz, 798–824 MHz, 851–869 MHz
Channel Spacing: 12.5 and 25 kHz
Channel Selection: 6.25 kHz
Number of Channels: Preset capability for 2 banks of 16 channels
Channel Switching Range: unlimited
Compatibility: MT-3 and MT-4 Series Radio Systems; P25 interoperable*
System Impedance: 50 Ω (Type-N connector)
Frequency Generation: Internal Synthesizer
IF Frequency 73.35 MHz
Reference Sensitivity: ≤ -116 dBm (0.35 uV) for 12 dB SINAD
≤ -116 dBm (0.35 uV) for 5 % BER*
Local Oscillator Frequency Stability: ± 0.15 ppm
Adjacent Channel Rejection (Selectivity): Class B:
≥ 40 dB; Narrow Band Analog
≥ 70 dB; Wide Band Analog
≥ 60 dB; Digital*
Intermodulation Rejection: Class B:
≥ 70 dB; Narrow Band and Wide Band Analog
≥ 70 dB; Digital*
Spurious Response Rejection: Class B:
≥ 70 dB; Narrow Band and Wide Band Analog
≥ 70 dB; Digital*
Conducted Spurious Output Power: ≥ 80 dBm
Hum and Noise Ratio: ≥ 31 dB; Narrow Band Analog
≥ 37 dB; Wide Band Analog
Audio Output: 600 Ω balanced line output (congurable for unbalanced line);
De-emphasis or Flat output, +3 dBm maximum level
Audio Distortion: ≤ 3.0% (25°C); ≤ 5.0% (-30˚C to +60˚C)
Front Panel Controls: Receiver Power On (Norm) / Off
Squelch Disable (Push button)
Analog and Digital Receive LED indicators
COR Interface: 150 mA, 50 V open drain power MOSFET
Supply Voltage: +13.8 VDC Nominal (range +10 to +17 VDC) †
+9.5 VDC Regulated
Supply Current: Class B:
< 200 mA
Operating Temperature Range: -30°C to +60°C
Operating Humidity: 95% RH (non-condensing) at +25°C
CTCSS Decode: Programmable to any of 42 CTCSS tones
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
† For GSA BPA Contract: GSC-TFMG-BPA-09-002 the following specications apply:
Supply Voltage range: +10 to +18 VDC
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DCS Decode: Programmable to any of 83 DCS sequences. Normal or inverted
DCS can be selected.
IC Certication No.: 142A-UR4E768
142A-UR4E800
142A-UR4E850
FCC ID: n/a – Declaration of Conformity (DOC)
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
700 / 800 MHz Receiver Performance Specications (continued)
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Specication Data Sheets 49
700 / 800 / 900 MHZ TRANSMITTER
PERFORMANCE SPECIFICATIONS
General
Frequency Range: 768–869 MHz, 896–960 MHz
Carrier Frequency Stability: ± 0.1 ppm
Channel Spacing: 12.5 and 25 kHz
Channel Selection: 6.25 kHz
Number of Channels: Preset capability for 2 banks of 16 channels
Compatibility: MT-3 and MT-4 Series Radio Systems; P25 interoperable*
RF Output Power: 0.5 to 3.0W Continuous
Emission Designators: Analog: 11K0F3E (Narrow Band); 16K0F3E (Wide Band)
Digital Paging: 9K2F1D
P25 Digital: 8K10F1E (Digital Voice); 8K10F1D (Digital Data)*
System Impedance: 50 Ω; Type-N connector
Duty Cycle: 100%; Continuous operation
Undesired Emissions:
(Adjacent Channel Power Ratio)
< -50 dBc, Narrow Band
< -60 dBc, Wide Band
< -67 dBc, Digital*
Undesired Emissions:
(Conducted Spurious)
< -80 dBc @ 3.0 W RF Output
VSWR Protection: < 20:1 VSWR at all phase angles
Operating Temperature Range: -30˚C to +60˚C
Operating Humidity: 95% RH (non-condensing) at +25°C
Operating Voltage: +13.8 VDC Nominal (range +10 to +17 VDC) †
+9.5 VDC Regulated
Transmit Current: < 1.8A @ 3.0W RF Output
Stand By Current: < 115 mA (no encryption modules installed)
< 145 mA (with encryption modules installed)
Front Panel Controls: Transmitter Power On (Norm) / Off / Key Tx
Mic Mode: Analog / Digital
Analog and Digital Transmit LED indicators
PTT Time-Out-Timer: Programmable from 15 to 465 sec. (in increments of 15 sec., ± 5 sec.) or
innity (default 300 sec.) using Radio Service Software.
Audio Input: 600 Ω balanced or unbalanced input
(600 Ω or 15 k Ω selectable input impedance)
Audio Frequency Response: Pre-emphasis; +1, -3 dB (300 to 3000 Hz)
Audio Deviation Limiting: ± 2.5 kHz Narrow band, ± 5.0 kHz Wide band
Audio Distortion: < 3% THD; 1 kHz tone at 1.5 kHz or 3 kHz deviation
FM Hum and Noise Ratio: ≥ 31 dB; Narrow Band Analog
≥ 37 dB; Wide Band Analog
CTCSS Decode / Encode: Programmable to any of 42 CTCSS tones.
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
† For GSA BPA Contract: GSC-TFMG-BPA-09-002 the following specications apply:
Supply Voltage range: +10 to +18 VDC
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700 / 800 / 900 MHz Transmitter Performance Specications (continued)
DCS Decode / Encode: Programmable to any of 83 DCS sequences. Normal or inverted
DCS can be selected. Turn-Off code optional.
IC Certication No.: 142A-UT4E850 (768–869 MHz)
142A-UT4E900 (896–960 MHz)
FCC ID: H4JUT-4E850 (768-869 MHz)
H4JUT-4E900 (896–960 MHz)
* P25 Digital specications are applicable only for modules with the P25 Digital rmware upgrade.
700 / 800 / 900 MHZ PHYSICAL SPECIFICATIONS
Physical Dimensions: Width:
7.1 cm (2.8 in)
Height:
12.8 cm (5.05 in)
Depth:
19 cm (7.5 in)
Module Weight: Receiver: 1.2 kg (2.5 lbs.)
Transmitter: 1.4 kg (3.0 lbs.)
Corrosion Prevention: • Anodized aluminum construction
• Stainless steel hardware
• Gold-plated module connectors
Module Design: • Compact Eurostandard modular design
• Plug-in modules mate with the Daniels standard MT-4E repeater subrack
• Subracks / modules comply with IEEE 1101, DIN 41494 and IEC 297-3
(mechanical size / modular arrangement)
External Connections: RF Connection: Type-N connector located on the module front panel. Digital I/O
interface is made via RJ45 modular jack located on the front panel. Programming
interface is made via Mini-B USB 1.1 jack located on the front panel. Motherboard
connections (Audio, Power and Control) are made through a 48-pin, gold-plated,
Type-F connector on the rear of the module. User connection is made through
mated motherboard assembly of the radio subrack. Type-F connector complies with
DIN 41612 Level 2 (200 mating cycles, 4-day 10 ppm SO2 gas test with no functional
impairment and no change in contact resistance).
Handle Text Colour: Blue (768–869 MHz, 896–960 MHz)
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51
GLOSSARY OF TERMS
Bandwidth
The difference between the limiting
frequencies of a continuous frequency band.
Typically measured in kilohertz. May be
considered the amount in kilohertz required
for a single communications channel.
BER
BIT Error Rate.
BPS
BITs Per Second – a data rate measure.
C4FM
Constant Envelope 4-Level Frequency
Modulation – an FM transmitter which uses
Quadrature Phase Shift Keying (QPSK)
modulation to work with a compatible
frequency discriminator detection (CFDD)
receiver.
Channel
A single unidirectional or bidirectional path
for transmitting or receiving, or both, of
electrical or electromagnetic signals.
Channel Spacing
Typically measured in kilohertz from the
center of one channel to the center of the
next-adjacent channel. May, or may not, be
identical to bandwidth.
Common Air Interface (CAI)
A radio-to-radio signal path dened in terms
of Access Method, Modulation Scheme,
Vocoding Method, Channel Data Rate and
Channel Data Format.
CTCSS
Abbreviation for “Continuous Tone-Controlled
Squelch System.”
DCS
Digital Coded Squelch.
DSP
Digital Signal Processor – a specialized
microprocessor.
DTMF
Dual-Tone Multi-Frequency – a signaling
scheme used by the telephone system in
which two voice band tones are generated
for each keypad key press.
Encryption
A coding of plain text (or clear voice) into
unintelligible forms for secure transmission.
Error Correction
Digital coding technique for detecting and
correcting information transmission errors.
FCC
Federal Communications Commission.
Firmware
Software that is permanently stored in a
hardware device, and allows reading and
executing, but not writing or modifying the
software.
I/O
Input / Output
ISO
International Standards Organization
LSB
Least Signicant BIT.
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Glossary of Terms
52
Modulation
A controlled variation of any property of a
carrier wave for the purpose of transferring
information.
MSB
Most Signicant BIT.
NAC
Network Access Code. A 12-bit eld
identifying the network of the radio message.
Typically used to steer repeater functions.
PTT
Push-to-Talk – the switch on a subscriber
unit which, when pressed, causes the
subscriber unit to transmit.
QPSK
Quadrature Phase Shift Keying – modulation
technique. PSK using four-phase states.
RF
Radio Frequency.
Signal
The detectable transmitted energy which
carries information from a transmitter to a
receiver.
SINAD
SIgnal-plus-Noise-and-Distortion to
noise-and-distortion ratio.
Squelch
A radio circuit that eliminates noise from
the speaker when no transmitted signal
is present.
Subscriber Unit
A mobile or portable radio unit used in a
radio system.
TGID
Talk Group Identier. A 16-bit eld
identifying the talk group of the radio
message.
TIA
Telecommunications Industry
Association.
Time-Out Timer
A function that limits the transmission
period to a pre-dened time. The user
will automatically stop transmitting when
the timer goes off after the pre-dened
time.
Trunked (System)
Systems with full-feature sets in which
all aspects of radio operation—including
RF channel selection and access—are
centrally managed.
UCM
Universal Cryptographic Module
UDB
Universal Daughter Board
VOCODER (Voice-Coder)
A type of voice coder. Usually
consisting of a speech analyzer and
a speech synthesizer which convert
analog speech into digital signals
for transmission and digital signals
back into articial speech sounds for
reception.