CalAmp Wireless Networks BDD4T881S2 ParagonPD User Manual preliminary version of the

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Document Title	preliminary version of the user manual

Paragon-III
(Narrow Band)
Data Base Station
Technical Manual
Version 0.01
Preliminary
The entire contents of this manual and the Radio Installation Software
described in this manual are copyright 2004 by DATARADIO Inc.
Copyright DATARADIO Inc.
July 2004
Part no.: 120 20190-001
1.
PRODUCT OVERVIEW................................................................................................................................... 1
1.1 INTENDED AUDIENCE ....................................................................................................................................... 1
1.2 GENERAL DESCRIPTION .................................................................................................................................... 1
1.2.1 Features: ................................................................................................................................................. 2
1.3 FACTORY TECHNICAL SUPPORT ........................................................................................................................ 3
1.4 PRODUCT WARRANTY ...................................................................................................................................... 4
1.5 REPLACEMENT PARTS....................................................................................................................................... 4
1.5.1 Factory Repair ........................................................................................................................................ 4
1.6 PACKAGING ...................................................................................................................................................... 4
2.
INSTALLATION ............................................................................................................................................... 5
2.1 OVERVIEW ........................................................................................................................................................ 5
2.2 LOCATION ......................................................................................................................................................... 5
2.3 FRONT VIEW:.................................................................................................................................................... 5
2.4 REAR VIEWS:.................................................................................................................................................... 6
2.5 ELECTRICAL...................................................................................................................................................... 8
2.5.1 Paragon-III Assembly Power .................................................................................................................. 8
2.6 ANTENNA ....................................................................................................................................................... 10
2.6.1 Overview ............................................................................................................................................... 10
2.6.2 Cabling and Connection ....................................................................................................................... 10
2.7 COMPLETING THE PHYSICAL INSTALLATION.................................................................................................... 10
2.8 CHECKING OUT NORMAL OPERATION ............................................................................................................. 10
3.
OPERATING DESCRIPTION ....................................................................................................................... 11
3.1 RADIO ASSEMBLY........................................................................................................................................... 11
Receiver module ................................................................................................................................................. 11
3.1.2 Exciter module ...................................................................................................................................... 12
3.1.3 BDLC-III module .................................................................................................................................. 12
3.1.4 Power Amp module ............................................................................................................................... 13
3.1.5 Speaker panel........................................................................................................................................ 13
3.1.6 Dual Power Supply module................................................................................................................... 14
3.1.7 Radio Backplane Assembly ................................................................................................................... 15
4.
TROUBLE-SHOOTING AND TESTING ..................................................................................................... 16
4.1 EQUIPMENT REQUIRED ................................................................................................................................... 16
4.2 RECOMMENDED CHECKS ................................................................................................................................ 16
4.3 ADDITIONAL TEST DETAILS ............................................................................................................................. 20
4.3.1 Carrier deviations ................................................................................................................................. 20
4.3.2 RF Data Link Test ................................................................................................................................. 21
5.
RADIO PROGRAMMING AND ADJUSTMENTS ..................................................................................... 22
5.1 SERIES II RADIO PROGRAMMING .................................................................................................................... 22
5.1.1 Recommended Items.............................................................................................................................. 22
5.1.2 Module Programming ........................................................................................................................... 22
5.1.3 Channel Selection via DIP Switches ..................................................................................................... 25
5.2 SERIES II RADIO TUNING ................................................................................................................................ 26
5.2.1 Test Equipment...................................................................................................................................... 26
5.2.2 Receiver module (T885-xx-0200, T855-xx-0250).................................................................................. 26
5.2.3 Exciter Module (T881-xx-0200,T857-xx-0250)..................................................................................... 29
5.2.4 Power Amplifier Module (T889 (800-870 MHz only), T859)................................................................ 32
6.
SPECIFICATIONS .......................................................................................................................................... 38
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FIGURE 1 - TYPICAL RACK-MOUNT MULTI-MODULES "RADIO ASSEMBLY" .................................................................... 5
FIGURE 2 - TYPICAL RACK-MOUNT DUAL "POWER SUPPLY" .......................................................................................... 5
FIGURE 3- BASE STATION STANDARD ASSEMBLY ........................................................................................................... 6
FIGURE 4 - BASE STATION STANDARD ASSEMBLY, WITH 3RD PARTY DC SUPPLY MODULE .............................................. 7
FIGURE 5 - MAXI-FUSE .................................................................................................................................................. 9
FIGURE 6 - RECEIVER MODULE .................................................................................................................................... 11
FIGURE 7 - POWER AMP MODULE................................................................................................................................. 13
FIGURE 8 - SPEAKER MODULE ...................................................................................................................................... 13
FIGURE 9 - DUAL POWER SUPPLY MODULE FRONT PANEL ........................................................................................... 14
FIGURE 10 - DUAL POWER SUPPLY, REAR CONNECTIONS ............................................................................................. 15
FIGURE 11 - 280 03425-001 RADIO BACKPLANE ......................................................................................................... 15
FIGURE 12 - CARRIER DEVIATIONS FOR TONE OR DATA MODULATION ........................................................................ 20
FIGURE 13 - RECEIVER SYSTEM INFORMATION SAMPLE .............................................................................................. 23
FIGURE 14 - RECEIVER CHANNEL INFORMATION SAMPLE............................................................................................ 23
FIGURE 15 - EXCITER SYSTEM INFOMATION SAMPLE .................................................................................................. 24
FIGURE 16 - EXCITER CHANNEL INFORMATION SAMPLE ............................................................................................ 24
FIGURE 17 - BACKPLANE DIP SWITCHES EXAMPLE - CHANNEL 1 SELECTED ............................................................... 25
FIGURE 18 - T855 AND T885, TYPICAL RSSI CURVE: VOLT TO DBM .......................................................................... 29
FIGURE 19 - T859 TUNING SETTINGS ........................................................................................................................... 33
FIGURE 20 - T885-0200 RECEIVER TUNING CONTROLS LOCATION .............................................................................. 34
FIGURE 21 - T881-0200 EXCITER TUNING CONTROLS LOCATION ................................................................................ 35
FIGURE 22 - T855 RECEIVER TUNING CONTROLS LOCATION ....................................................................................... 36
FIGURE 23 - T857 EXCITER TUNING CONTROLS LOCATION ......................................................................................... 37
TABLE 1 - ON-AIR DATA SPEEDS AND MODULATION TYPES ............................................................................................ 2
TABLE 2 - POWER SUPPLY, LEDS INDICATIONS ............................................................................................................. 9
TABLE 3 - CHECKLIST A (AFTER INSTALLATION) ......................................................................................................... 17
TABLE 4 - CHECKLIST B (GENERAL)............................................................................................................................ 18
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WHAT'S NEW
History
Version 0.01: Preliminary version (April 2004)
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Definitions
The following terms are used throughout this document.
Asynchronous
AVL
BDLC-III
E-DBA
CDip
DCE
DTE
Gemini-III
IP
Network Speed
Paragon-III
Parallel Decode
Radio Assembly
RS-232
VIS
120 20190-001
Information that can be sent at random times, and not synchronized to a clock.
Transmission characters begin with a “start” bit and end with a “stop” bit.
Automatic Vehicle Location. Optional feature that involves using GPS (Global
Positioning System) signals from the mobile unit by the Host PC.
Base Station Data Link Controller (PD = Parallel decode). An async controllermodem designed for the radio base station in mobile systems. A component of
Paragon-III.
Dataradio’s Enhanced Dynamic Bandwidth Allocation.
Windows based "Commands & Data over IP" radio-modem Software. This software allows basic tests, unit configuration, and troubleshooting.
Data Communications Equipment. This designation defines the direction (input
or output) of the various RS-232 interface signals. Modems are always wired as
DCE.
Data Terminal Equipment. This designation defines the direction (input or output) of the various RS-232 interface signals. Most user equipment, as well as
PCs, are wired as DTE.
High specs dual DSP mobile radiomodem with Dataradio PD technology (Parallel Decode)
This is the bit rate on the RF link between units. Could be different from COM
port baud rate.
Next generation of Paragon/PD+. Runs up to 128 kb/s
Technology featuring dual receivers for added data decode sensitivity in multipath and fading environments.
Radio modules used in Paragon-III and available in two distinct series depending
on radio’s frequency band.
Industry–standard interface for serial data transfer.
Vehicular Information Solutions. Dataradio’s name for a series of products specially designed for mobile data.
Paragon-III Technical Manual
1. PRODUCT OVERVIEW
This document provides information required for the setting up, operation, testing and trouble-shooting
of the DATARADIO Paragon-III radio-modem base station.
1.1
Intended Audience
This document is intended for engineering, installation, and maintenance personnel.
1.2
General Description
Paragon-III product is a factory-integrated industrial-grade Dataradio base station used in mobile networks
and is designed specifically to fit the needs of vehicular applications. It features dual receivers for added
data decode sensitivity in multi-path and fading environments.
When used with Dataradio’s state-of-the-art Gemini-III (G3) mobile IP data solution, the system delivers
unequaled high-speed data performance and unmatched effective throughput.
All Paragon-III models are supplied in a rack-mount configuration that includes:
•
A Paragon-III full-duplex Radio-modem assembly that includes a Next generation high-speed
Dataradio “Base Station Data Link Controller” module (BDLC-III) fitted in the radio chassis
assembly.
•
Duplexer and backup power units are custom furnished items.
•
Wire line modem(s) are optional items.
•
Laptop PC and its application software are user-supplied items.
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1.2.1 Features:
•
Parallel Decode (PD) technology featuring dual receivers for added decode sensitivity in multipath and fading environments.
•
Fully IP based product line, using an optimized IP layer that reduces IP overhead for the RF link
•
Sophisticated dual DSP-based modem design provides added system performance, fewer retries
and more effective throughput.
•
Full duplex operation in the frequency bands of 800 MHz and UHF
•
Power output:
•
•
800 MHz model: 20W to 70W,
•
UHF model: 20W to 100W
Models with on-air data speeds and modulation types as follows:
Table 1 - On-air data speeds and modulation types
Modulation
type
SRRC4FSK
Channel spacing
<25kHz (12.5 kHz, NPSPAC)
25 kHz
14.4 kb/s
28.8 kb/s
16 kb/s
32 kb/s
21.6 kb/s
43.2 kb/s
24.0 kb/s
48kb/s
28.8 kb/s
57.6 kb/s
32.0kb/s
64.0 kb/s
SRRC8FSK
SRRC16FSK
•
Uses the Next generation high-efficiency Dataradio Enhanced DBA over-the-air protocol
•
Over-the-air compatible with Gemini-III mobile products (factory settable)
•
Out-of-band signaling enables transmission of GPS reports with no effect on system performance.
•
Flash programmable firmware
•
Modular design in a rugged die-cast aluminum chassis
•
Paragon-III units are factory-configured based on each customer’s network system requirements
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1.3
Factory Technical Support
The Technical Support departments of DATARADIO provide customer assistance on technical problems and serve as an interface with factory repair facilities. They can be reached in the following
ways:
For Canada and International customers:
DATARADIO Inc.
5500 Royalmount Ave, suite 200
Town of Mount Royal
Quebec, Canada H4P 1H7
Technical support hours: Monday to Friday 9:00 AM to 5:00 PM, Eastern Time
phone:
fax:
+1 514 737-0020
+1 514 737-7883
Email address: support@dataradio.com
or
For U.S. customers:
DATARADIO Corp.
6160 Peachtree Dunwoody RD., suite C-200
Atlanta, Georgia 30328
Technical support hours: Monday to Friday 8:30 AM to 5:30 PM, Eastern Time
phone:
fax:
1 770 392-0002
1 770 392-9199
Email address: drctech@dataradio.com
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1.4
Product Warranty
Warranty information may be obtained by contacting your sales representative.
1.5
Replacement Parts
This product is usually not field-serviceable, except by the replacement of individual radio modules.
Specialized equipment and training is required to repair logic, modem boards, and radio modules.
Contact Technical Support for service information before returning equipment. A Technical Support
representative may suggest a solution eliminating the need to return equipment.
1.5.1 Factory Repair
When returning equipment for repair, you must request an RMA (Returned Material Authorization)
number. The Tech Support representative will ask you several questions to clearly identify the problem. Please give the representative the name of a contact person, who is familiar with the problem,
should a question arise during servicing of the unit.
Customers are responsible for shipping charges for returned units. Units in warranty will be repaired
free of charge unless there is evidence of abuse or damage beyond the terms of the warranty. Units
out of warranty will be subject to service charges. Information about these charges is available from
Technical Support.
1.6
Packaging
Each Paragon-III product normally leaves the factory packaged as follows:
•
A Series II Dataradio base station “Radio-modem assembly”
•
A dual power supply assembly
•
Standard seven-foot 120VAC power cords
•
Two DC power cables to connect the radio assembly to the dual power supply assembly.
Frequently, Paragon-III product components are field-assembled prior to customer delivery.
The cabinetry may then be supplied in one of several custom rack-mount configurations that may also
include fan, backhaul modems, duplexer/filters/combiners, and ancillary equipment.
If damage has occurred to the equipment during shipment, file a claim with the carrier immediately.
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2. Installation
2.1
Overview
The cabinet and rack-mount housing the Paragon-III’s radio assembly and the BDLC-III is generally
installed in a sheltered facility. Occasionally located adjacent to the nerve center of the user’s
network, it is often located near tower sites or at remote locations where it operates unattended.
Furnishings needed include power, cabling, and installation of antenna, landline or microwave modem, and host PC or portable computer. Details of these are outside the scope of this manual. This
manual covers the radio assembly and the BDLC-III that includes the modem.
2.2
Location
Be sure to place the Paragon-III in such a way that:
•
The LEDs can be seen (as an aid in troubleshooting)
•
Access to the antenna connector and to the back connectors is possible without removing the unit
•
Sufficient air may flow around the unit to provide adequate cooling.
2.3
Front View:
Air Flow
®
®
®
®
Receiver
BDLC-III in Radio
Excellence
Communications
Receiver
®
Exciter
®
Power Amplifier
Speaker Panel
SPEAKER
SELECT SWITCH
RX1
RX2
OFF
Supply
Gate
Gating
Sensitivity
Gate
Gating
Sensitivity
Carrier
On
Low Forward Power
High Reverse Power
Line
Level
Supply
Line
Level
Supply
Supply
Line
Sensitivity
Power
Monitor
Volume
Monitor
Volume
Off
Off
On
On
Microphone
Monitor
Mute
Monitor
Mute
programming
port
®
Figure 1 - Typical rack-mount multi-modules "Radio Assembly"
Dual Power Supply Module
OL Stby On
Power
OL Stby On
Power
T800 IISlimline
Figure 2 - Typical rack-mount dual "Power Supply"
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2.4
Rear Views:
Figure 3- Base Station standard assembly
+ -
+ -
18”
RTB1
For Cable Assembly details,
see drawing 730-03439-002
18”
18”
15”
1”
RTB2
18”
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Figure 4 - Base Station standard assembly, with 3rd party DC supply module
+ 1”
RTB1
18”
15”
For Cable Assembly details,
see drawing 730-03439-002
RTB2
1”
As required
Third Party Power Supply
13.8VDC Nominal
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2.5
Electrical
Standard 120 VAC electrical power is required. It should be capable of providing at least 10A to power
Paragon-III (<6A) and ancillary equipment.
2.5.1 Paragon-III Assembly Power
Two distinct power configurations (rear views) are shown in the preceding pages. They are:
• Paragon-III Base Station Standard Assy.
This configuration is described in paragraph 2.5.1.1 below.
• Paragon-III Base Station Assy. with 3rd party DC supply (Figure 4).
Refer to Dataradio System Engineering for further details.
2.5.1.1 Standard Power Supply Configuration
The Radio assembly unit receives two separate 13.8 VDC power inputs from a “T800 Slimline” dual
power supply typically rack-mounted right below the main assembly radio chassis.
The T800 is made up of two separate power supply units joined in a single chassis:
•
A T807 using convection cooling is rated to 15A nominal at 13.8VDC. It supplies all the radio
modules other than the Power Amplifier.
•
A T808 using convection and fan cooling is rated to 25A nominal at 13.8VDC. It supplies only
the Power Amplifier module (T859, or T889).
Normally used at room ambient temperatures, they can operate within their specifications over a
range of –10 to +60 °C.
Note: Internal over-temperature protection shuts down the main transformer above 105 degrees Celsius.
Both power supply modules are internally connected to ground via their individual, rear-connected,
seven-foot standard 120 VAC power cords. Nevertheless, each requires a separate secure electrical
ground connection. Individual grounding tabs are provided next to the power connectors.
Similarly, the Radio Assembly chassis requires a secure ground connection. A threaded grounding
binding post fitted with a knurled binding-nut is provided on the chassis next to DC input 2. Separate
grounding leads with appropriate connectors are supplied (either in the courtesy small-parts kit or
with one end fastened to the equipment.
•
For each of the power supply modules, fit one end of the grounding lead’s push-on connector
onto the grounding tab.
•
For the Radio Assembly chassis, install the grounding lead’s lug over the binding post and firmly
hand-tighten the binding-nut.
•
For both T807 and T808 power supply modules
1. Fit the slotted connector (on the other end of each of the grounding connector) under a
conveniently located screw on the rack frame or other support surface. Scrape away paint
if needed to ensure clean contact.
2. Apply anti-corrosion compound where paint scraping was done.
3. Ensure by testing continuity that a secure electrical and mechanical connection is
achieved.
If a –DC rail (0V) is installed as part of the system, the grounding leads may alternatively be fitted to the rail terminal.
Caution:
Improper grounding between power supply case and rack frame may result in harmful voltage potentials and/or miscellaneous power supply switching noise problems in both receivers and transmitter.
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2.5.1.1.1
T808/807 DC Power Supply Connection & Torque Settings
Warning:
Securing the DC Power Supply cable into the DC connector to provide a good electrical
connection is essential. Over time, the wires tend to compress in the DC connector resulting in an increasingly poorer connection. Consequently, as high current is drawn,
the connector heats up increasing the resistance thereby causing still more heat until the
connector eventually burns up.
Although screws securing DC cables to the Power Supply terminals are tightened to the torque settings given below prior to new system delivery, they must be re-tightened as part of the commissioning process and re-tightening is also part of the regular maintenance schedule.
Prior to replacing a Power Supply module into an existing system, inspect the cable and re-terminate
the DC wires if the strands have previously been twisted together or show any sign of damage.
Cut the wire at the end of the insulation and then strip approximately .4 inch (10mm) of insulation off the cable. DO NOT TWIST THE WIRE STRANDS. Insert the DC cable into the screw
terminal and tighten the screw to secure the cable as per the torque settings given below.
Torque Settings:
The manufacturer recommends torque setting all power supply terminal screws to:
•
0.5 to 0.6 Nm (or 4.5 to 5.3 In/lb or to .37 to .44 ft/lb)
Note: Dataradio uses a Sturtuvan Richmond 29-pieces adjustable torque screwdriver model
CAL36/4K.
After tightening, pull on the cable to check the cable is secured tightly into the screw terminal.
2.5.1.1.2
•
Power Indications
Press both red power buttons located on the front of the module to have complete power distribution to the Radio assembly. The power supply front panel LEDs indications are:
Table 2 - Power Supply, LEDs indications
LED
On
Stby
OL
On & OL
Color
Green
Red
Steady Red
Flashing green and red respectively
Indication
Power enabled *
Power disabled *
Current Overload
Over voltage
* To remove voltage from the power supply PCB, disconnect the main power cords.
•
For other Paragon-III LEDs descriptions, see section Error! Reference source not found.
2.5.1.2 Backplane Fuses
Blade fuses (Maxi-Fuse) are used on the Radio assembly backplane (see Figure 5):
Dimensions – Inch (mm)
Fuse Type
Maxi-Fuse
1.15 (29.21)
1.35 (34.29)
.35 (8.89)
Figure 5 - Maxi-Fuse
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2.6
Antenna
2.6.1 Overview
Paragon-III commonly uses three antennas (one transmit and two receive) unless a duplexer is used
with one of the receive antennas; then only two antennas would be needed. They should be mounted
according to any guidelines supplied with the antennas. For antennas placement and spacing, consult
System Engineering.
2.6.2 Cabling and Connection
1- Route good quality 50-ohm double-shielded coaxial cable(s) (e.g. RG-214 or Heliax) from the
selected antenna position(s) to the Paragon-III Radio assembly.
2- Terminate the RX-1 and RX-2 cable-ends at the Receiver modules rear position with an N-type
connector.
3- Similarly, terminate the TX cable-end at the Power Amp’s module rear position with an N-type
connector.
Caution:
When terminating RF cables use brand-name crimping tools (such as AMP, Jensen,
Crimp-Master, etc…) of the correct size for the cable and type of connector used.
Common pliers are NOT acceptable.
2.7
Completing the physical Installation.
Paragon-III products are factory-configured to user’s requirements and are shipped ready to run.
After new installations:
•
Re-check that all connections are secure on the radio-BDLC assemblies (antennas, PC, power
cords etc.)
•
Check that fuses are inserted.
•
Turn both BDLC-III and radio power ON.
You are now ready to check for normal operation (as per paragraph 2.8) and to run the Dataradio
CDip program for testing or trouble-shooting.
Any change(s) to the settings must be done via files saved on diskette and loaded into the unit using
the CDip program.
2.8
Checking out Normal Operation
1234-
Check that power is applied.
Check Radio assembly lights for proper operation as per section 3.1.1
Check for proper operation of the BDLC-III’s LEDs.
Using the CDip program and an in-line wattmeter, check forward & reverse power to confirm
main antenna installation
5- Using CDip, check the RF Data Link with a mobile that can be heard (as per section 4.3.1)
If user application and mobiles are available, test the installation by going through a normal sequence
of transmitting and receiving messages.
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3. Operating Description
3.1
Radio Assembly
The Radio assembly component of each Paragon product is made up of high performance synthesized
radio base station designed for single operation. The Radio Assembly’s modules are commonly
installed in a standard, 19-inch wide rack frame.
The complement of modules is identical for Series II UHF, and 800 MHz models:
•
•
•
•
•
•
2 x Receivers
1 x Exciter
1 x BDLC-III (controller-modem)
1 x Power Amplifier
1 x Speaker panel
1 x Dual Power Supply
®
3.1.1 Receiver module
The RX1 and RX2 receivers’ use identical front panel controls and
indicators. These are:
•
Gating Sensitivity - sets the RF signal level required to open the
mute gate and allow audio to pass to the speaker1.
•
Gate LED - indicates the status of the mute circuit. It is lit when
a signal above the mute threshold is received1.
•
Supply LED - is lit when DC power is applied. Fast Flashes
when linked with PGM800Win. Slow Flashes indicates VCO
(synthesizer) out of lock. Unequal Flashes indicates internal
communication error.
Receiver
Gating
Sensitivity
Gate
Gating
Sensitivity
Line
Level
Gate
LED
Supply
Line
Level
Monitor
Volume
Off
On
Monitor
Volume
Monitor
Mute
•
Line Level - Not used
•
Monitor Volume - The audio output delivers up to 1 watt to the
speaker. Always set volume knob to minimum when not in use
to reduce current consumption.
•
Monitor Mute Switch - opens the mute, allowing continuous
monitoring of the audio signal. On = audio muted
Monitor
Mute
On - Off
Figure 6 - Receiver module
“Gating Sensitivity” and “Gate LED” are not functionally used except to allow listening to incoming receptions
as a trouble-shooting aid.
Depending on the sensitivity adjustment, the Gate LED lights and a relay can be heard on incoming RF signals.
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The Exciter’s front panel controls and indicators are:
Carrier
Switch
Exciter
•
Carrier Switch - momentarily keys the transmitter ON while
pressed (used for test purposes only).
•
On LED - is lit when transmitting
•
Line Sensitivity – not used.
•
Supply LED - is lit when DC power is applied. Fast Flashes
when linked with PGM800Win. Slow Flashes indicates VCO
(synthesizer) out of lock. Unequal Flashes indicates internal
communication error.
•
®
3.1.2 Exciter module
On
Carrier
Line
Sensitivity
Supply
Microphone
On
LED
Supply
LED
Line
Sensitivity
Microphone
Socket
Microphone Socket – not used.
3.1.3 BDLC-III module
The BDLC-III's front panel connectors and indicators are:
• 2x DE-9 RS-232 ports for setup and user data
•
4x main unit status LED
•
2x Ethernet ports – for setup and user data
•
2x Ethernet LEDs (status & activity)
•
USB port – reserved.
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3.1.4 Power Amp module
®
Supply
LED
Power Amplifier
The Power Amp front panel and indicators are:
•
Supply LED - is lit when DC power is applied.
Supply
Low Forward
Power LED
Low Forward Power
High Rev ers e Power
•
Low Forward Power LED - is lit when forward power is below the level set, normally
80% of nominal forward power.
•
High Reverse Power LED - is lit when high
reverse power is detected (e.g. VSWR= 3:1).
•
Power - sets the PA output power:
UHF models: 20 - 100 Watts
800 model: 20-70 Watts
High Reverse
Power LED
Power
Power
Adjustment
igure 7 - Power Amp module
The speaker panel is fitted with a four-Ω speaker.
Both series of radio assemblies share the same front panel fitted with an
RJ11 connector. This connector is used to allow programming the radio
from the front of the unit via a programming lead. This feature is exclusive to the Series II modules.
If the speaker panel needs to be removed, a mirror programming port
connector is provided on the backplane.
®
3.1.5 Speaker panel
S p eaker Panel
SP EAK ER
SELE CT SWI TCH
R X1
R X2
O FF
Not
Used with
800 MHz
Series I
model
programm n
ig
p ort
Figure 8 - Speaker module
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3.1.6 Dual Power Supply module
The Dual Power Supply module is made up of two separate power supply units coupled in a single
chassis.
Refer to:
Table 2 on page 9 for tabular listing of power supply LEDs indicators and Figure 9 below.
This module has:
Two “Power” red-colored pushbutton switches - Push in for ON and release out for OFF. Control
complete power distribution to the Radio assembly
•
Two “ON” LEDs - light green when push button(s) is (are) ON; DC power is distributed to radio
modules. Flash green in conjunction with the “OL” LED (flashing red) when an over voltage
condition is present.
•
Two “Stby”- Standby voltage LED, lights red when push button is off; AC power is applied but
DC is not distributed to radio modules. To remove presence of voltage, disconnect both power
cords.
•
Two “OL” LEDs - Monitor current overload, light steady red when supply exceeds current limit
set; nominally 25Amps (T808 model). Flashes red in conjunction with the ON LED (flashing
green) when an over voltage condition is present.
®
•
Dual Power Supply Module
OL Stby On
Power
OL Stby On
Power
T800 IISlimline
Figure 9 - Dual Power Supply Module front panel
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3.1.6.1
Power Supply Rear Connections
The rear connections (convection-cooled model shown; fan-cooled model not illustrated) for each of
the power supply are:
Fail Alarm –
Off: Power supply OK; approx. +Vout (via 1k resistor - typ. 13.8V).
ON: Power supply failure; approx. -Vout (via 11k resistors - typ. 0V)
Fail Alarm
Remote
Sense
Output
13.8V
15A
Max.
+ Remote – Not used for Paragon
- Sense – Not used for Paragon
-VE – main ground (0V)
+13.8V – Mains DC output supply
Note: more power supply installation details
are covered in section 2.5.1
F +
igure 10 - Dual power supply, rear connections
3.1.7 Radio Backplane Assembly
A single PCB backplane is used. The main components are:
•
•
•
•
•
•
Top fan
RJ11 connectors (J11, J12) – connects to the Speaker panel front RJ11. Used for programming the Radio modules.
DB-25F port to ancillary equipement
One channel-select DIP switch (SW1)
Cooling fan driver – TB 3 located on backplane connects to the horizontally-mounted fan on
top of the Radio assembly and activated by BDLC’s PTT signal (setting JP1 2-3 will power
the fan continuously).
30 A Fuse (F2 & F3) – two blade fuses (15ADC) in parallel are used for future Power amplifier
10 A Fuse (F1) – one blade fuse to power the other base station components (receivers, exciter and optionally the BDLC).
13.8VDC input from
T808-10-00CA
13.8VDC input from
T807-10-00CA
Maxi-Fuse - 10 Amp.
RS-232 DE25F To BDLC
123
J2
J6
J1
P.A. diags signals JP1 - Fan
(future use)
Control
Molex connector
J5
Maxi-Fuses - 2 x 15 Amp.
13.8 VDC output to T889 or
T859 P.A.
RJ 45 Connectors #1
Figure 11 - 280 03425-001 Radio backplane
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4. Trouble-Shooting and Testing
The checks described below should be done at time of installation, annual intervals, or whenever deterioration in performance is noted.
4.1
•
•
•
•
Equipment Required
In-line watt meter (150W & 10 W ranges)
Radio service monitor (IFR-120B with option 03: 30KHz IF filter or equivalent).
RG-214 or RG-223 cable with N-Type male connector to connect Paragon-III to the service
monitor.
CDip 1.0 or later1
Important note: Before proceeding make sure that the service monitor has been calibrated recently and has warmed up for at least the time specified by its manufacturer.
Some reported frequency and deviation problems have actually been erroneous indications from
service monitors that have not adequately warmed up. This is particularly likely when field service is
done during winter months.
4.2
Recommended Checks
A) After an installation
1. LED Indications
2. Using CDip, Save “unit config” to a file
3. Transmitter Output Power
4. Transmitter Reflected Power
5. RF Link test between Paragon-III and mobile unit(s)
B) For annual maintenance & trouble-shooting
Same checks as A) plus:
6.
7.
8.
9.
10.
11.
12.
Carrier Frequency Error
TX Deviation
Low Frequency Balance
12 dB SINAD
Receiver distortion
RSSI check
Verify power supply connections & terminals torque settings (see paragraph 2.5.1.1.1)
1 To learn how to launch the Windows-based software alignment and system-testing tool CDip, please refer to
the readme.txt file on the application’s installation diskette.
For functional details of the numerous buttons and menu-selectable items available, please refer to the program’s context sensitive help. It is also possible to access the help information via the F1 key.
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Table 3 - Checklist A (After installation)
CHECKLIST A
(Paragon-III)
Recommended Check out after Installation
Step
ACTION
Normal Power-up
Sequence
Connect and save unit
config
EXPECTED RESULTS
at 25°°C
MEASURE WITH
IF NOT?
BDLC-III beeps once, all LEDs come ON for about four seconds, the green
LEDs then flash in a “ripple” pattern for close to two seconds. All LEDs go OFF
except the CK that should flash 6 to 8 times per second.
as per CDip Help content
Press CDip Get button
Transmitter Output
Power
UHF: 20 - 100 watts
800 MHz: 20 - 70 watts
Press TXON (Unmod)
+10%, -10%
Transmitter Reflected
Power
Press TXON (Unmod)
10W in-line wattmeter
Check for bad connections, damaged coax cable,
etc.
Check for bad connections,
damaged coax cable, etc.
RF Link test
Use the mobile address
function and “Send” button to dynamically test
the link
< 5% of forward power or
as specified by System
Engineering.
Service monitor set
to read power
or
150W in-line wattmeter installed as
close as possible to
the unit antenna
connector.
Look for
“Delivery confirmed” on
the Status bar
Refer to 4.3.2 and to
WinRIS Help
content.
Mobile is out of range
Refer to factory technical
support.
(unless unit has been set a lower value). Note that readings less than 100 watts for UHF or 70 watts for 800 MHz models, may be due
to losses in cables used for testing. Check also your wattmeter frequency calibration curve. Do not be too ready to condemn the
transmitter or the RF feedline & antenna installation.
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Table 4 - Checklist B (General)
CHECKLIST B (Paragon-III)
General Check out (part1 of 2)
Paragon-III units are set and characterized at the factory to optimize performances.
It is not recommended to try readjusting units unless it is really required.
Misadjusting a unit may result in significant performance losses.
The proposed adjustments in the "IF NOT?" column below, should be tried ONLY if system data
performance degradation is noticed combined with out-of-tolerance items.
Step
ACTION
Normal Power-up
Sequence
Connect and save unit
config
Expected Results at 25°°C
MEASURE WITH
IF NOT?
BDLC-III beeps once, all LEDs come ON for about four seconds, the green LEDs then
flash in a “ripple” pattern for close to two seconds. All LEDs go OFF except the CK that
should flash 6 to 8 times per second.
as per CDip Help content
Press CDip Get button
UHF: 20 - 100 watts
Transmitter Output
Power
800 MHz: 20 - 70 watts
Press TX ON (Unmod)
+10%, -10%
Transmitter
Power
< 5% of forward power or as
specified by System Engineering.
Reflected
Press TXON (Unmod)
Carrier Frequency Error
Press TX (Unmod)
TX Deviation (KHz)
Press
TX (modulated)
Carrier will be modulated
with a 1 kHz tone.
< ±300 Hz
Refer to "Figure 12 - Carrier
Deviations for Tone or Data
modulation" per bit rates
Adjust “Power” on the front
panel of the “Power Amp”
10 W in-line
wattmeter
Check for bad connections,
damaged coax cable, etc.
Service monitor set
to read frequency
error
Adjust TCXO (IC700)
(see inside Exciter module at,
Figure 21(800), Figure
23(UHF))
Service monitor set
to read deviation.
(IF filter set to Mid
or 30 kHz position)
Refer to technical support
Tolerance is +5%, -10% for
all bit rates.
Low Frequency
Balance
a)
Record deviation level
read from step 6
Initiate a
TX Random data test
via CDip
b)
Record deviation read
from TX Random test
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Service monitor set
to read power
or
150W in-line wattmeter installed as
close as possible
to the unit antenna
connector.
c)
Difference between
a) and b) should be:
< 1.5 kHz (HC &
NPSPAC)
< 2.0 kHz (FC)
18
Service monitor set
to read deviation
(IF filter set to Mid
or 30 kHz position,
all audio filtering
disabled )
Refer to
Section 5.2.3.4
Paragon-III Technical Manual
CHECKLIST B (Paragon-III)
General Check out (part2 of 2)
Paragon-III units are set and characterized at the factory to optimize performances.
It is not recommended to try readjusting units unless it is really required.
Misadjusting unit may result in significant performance losses.
The proposed adjustments in the "IF NOT?" column below, should be tried ONLY if system data
performance degradation is noticed combined with out of tolerance items.
Step
ACTION
EXPECTED RESULTS at
25°°C
MEASURE WITH
IF NOT?
Set the service monitor to generate on the selected receive frequency. Verify alternately for both receivers.
The carrier should be modulated with a 1.0 kHz tone at deviation level specified below:
- Backplane corresponding to the receiver being verified:
J1 (RX1) or J5 (RX2),
Pin 6 (see Figure 11,
page 15)
12 dB SINAD
(Dataradio wide band
measurement method: no
audio filtering)
Better than -108 dBm
including cable loss
- For Full channel unit,
set deviation to ±3 kHz. (Typically -109 to -110 dBm) - Service monitor (IFR)
set to SINAD
- For Half & NPSPAC
- IFR IF filter set to MID
channel unit, set deviaposition or 30 kHz wide
tion to ±1.5 kHz
filter.
Receiver distortion
(Dataradio wide band
measurement method: no
audio filtering)
- Set service monitor RF
Gen output to –70 dBm
- Deviation level as per
SINAD above.
10
RSSI
Apply to each receiver
input the following RF
level
UHF & 800 Mhz:
-110dBm
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≤ 5.5 %
(Typically < 3.5 %)
- Backplane corresponding to the receiver being verified:
J1 (RX1) or J5 (RX2),
Pin 6 (see Figure 11)
- Service monitor (IFR)
set to DISTORTION.
Refer to section 5.2.2
Refer to section 5.2.2
- IFR IF filter set to MID
position or 30 kHz wide
filter.
UHF & 800 MHz:
2.0 VDC (+/- 0.3VDC)
Note:
BDLC must be
connected to the radio
during the
measurements
19
- Backplane corresponding to the receiver being verified:
J1 (RX1) or J5 (RX2),
Pin 5 (see Figure 11)
- DC Voltmeter
measurement
Refer to section 5.2.2.5 for
all models.
Refer to factory technical
support only if RX data
performance degradation is
noticed combined with out
of tolerance RSSI readings.
Paragon-III Technical Manual
4.3
Additional test details
4.3.1
Carrier deviations
Carrier Modulation
SRRC16FSK
Network
Speed
(b/s)
SRRC8FSK
Tone
Data
Typical
deviation
in kHz
(1000Hz
test tone)
Maximum
deviation
in kHz
Network
Speed
(b/s)
SRRC4FSK
Tone
Data
Typical
deviation
in kHz
(1000Hz
test tone)
Maximum*
deviation
in kHz
Tone
Data
Network
Speed
(b/s)
Typical
deviation
in kHz
(1000Hz
test tone)
Maximum*
deviation
in kHz
Full Channel (800MHz)
64000
± 2.8
±3.7
48000
± 2.8
± 3.7
32000
± 2.8
± 3.8
57600
± 3.5
± 5.0
43200
± 3.5
± 5.0
28800
± 3.5
± 4.8
Full Channel (UHF)
64000
± 4.0
± 5.9
48000
± 4.0
± 5.8
32000
± 4.0
± 6.0
57600
± 4.2
± 6.2
43200
± 4.2
± 6.2
28.800
± 4.2
± 6.2
NPSPAC Channel (800MHz - U.S. only)
32000
± 3.0
± 3.9
24000
± 3.0
± 3.9
16000
± 3.0
± 3.9
28800
± 2.7
± 4.2
21600
±2.7
± 4.2
14400
±2.7
±3.7
Half-Channel (UHF & 800MHz)
32000
± 2.0
± 2.6
24000
± 2.0
± 2.6
16000
± 2.0
± 2.7
28800
± 2.2
± 3.2
21600
± 2.2
± 3.3
14400
± 2.2
± 3.2
*Data deviation shown may seem higher than tone deviation, however they fall within the appropriate FCC / IC’s masks limits
Figure 12 - Carrier Deviations for Tone or Data modulation
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4.3.2 RF Data Link Test
A link test between a mobile and a known base station can be done using the CDip "Address" and
"Send" functions. The “Address” and “Device” fields, the “Send” button and the “Chat” message
screen are used to send messages to specific mobile or base or to carry out RF test. Start by entering
the address of the mobile (or base station) you wish to send a test message to or test:
1- Specify the address:
Addresses may be entered by typing directly in the “Address” field in two ways:
- Numerically, the valid address range is 1-126.
- As an “Alpha-Mapped-Nibble” (AMN) address, consisting of upper case letters in the range
A-P.
The valid address range is A to GN.
- The base address is usually: 1.
- The program may display one of the following messages on the status bar:
- For Paragon-III products:
“address is not in AMN or number format”
- For mobile products:
“address is not in the range A – GN”
In either case, check that the address entered is within the acceptable range, is of a valid format
and correctly typed.
2- Enter the Device number for mobile (or base station).
3- Press the Send button.
The Chat window reports “Sent to xx mobile” (where xx is mobile name).
If test is successful:
Status line reports “Delivery confirmed.
If test unsuccessful:
Chat window reports “Waiting”,
Then the Status line reports “Delivery Failed”.
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5. Radio Programming and Adjustments
All receiver procedures detailed in this section should be done twice: once for the “Main” (or RX1)
receiver module and a second time for the “Auxiliary” (or RX2) receiver module. Connect to the
relevant module and its corresponding backplane PCB as required.
5.1
Series II Radio Programming
This procedure describes the steps needed to program the Paragon-III radio base station UHF, and
800 MHz (half & full channels).
5.1.1
Recommended Items
486 PC or better, MS-Windows 98 © or later
T800win programming kit for Series II:
PGM800Win programming software user's manual
PGM800Win Windows based programming software version 3.0 or later
T800-01-0002 programming cable (DB-25 to RJ-45 cable)
Standard 25-pin parallel cable (terminated Male/Female)
5.1.2
Module Programming
Before starting programming, have a PC running MS-Windows © and the Tait PGM800Win software for Series II Base station.
This program supports the use of a mouse but may be used without one if required. Keyboard access
follows the conventional MS-Windows © method as briefly described below:
- Press and hold the “Alt” key while pressing at the same time the relevant hotkey as indicated by
an underlined letter on the menu command.
- On a drop-down menu, press only the hotkey without pressing the “Alt” key.
- Use the “Tab” key to cycle available fields and the “Enter” key to validate entries. E.g. Pressing
“Alt”+F opens the File drop-down menu and pressing “A” opens the Save As directory service box.
•
Receiver VCO and front-end alignment will be required when new receiver frequency is programmed outside the radio tuning range:
800 = ± 3.0 MHz from previous center frequency
UHF = ± 2.5 MHz from previous center frequency.
•
Exciter and PA alignment will be required when new transmitter frequency is programmed outside the radio tuning range: ± 4 MHz from previous center frequency.
1. Connect the PC, via the supplied programming lead, to the speaker panel’s front-mounted
RJ11 connector.
2. Run Tait PGM800Win program and follow instructions found in the T800 Programming
Software User’s Manual to select the proper module to be programmed.
3. Program required channel's frequencies.
– Do not program any CTCSS tones on channels.
– Do not change any other parameters.
– Refer to Figure 13, Figure 14, Figure for screen program examples.
4. Save the base station programming info to a file for further reference.
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Figure 13 - Receiver System Information Sample
Figure 14 - Receiver Channel Information Sample
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Figure 15 - Exciter System Infomation Sample
Figure 16 - Exciter Channel Information Sample
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5.1.3 Channel Selection via DIP Switches
The backplane-mounted DIP switch settings override the default channel programmed by PGM800Win.
To set a default channel via the software, all DIP switches must be set to “OFF” (i.e. 00000000).
When a switch is “Off”, its binary count is active; when a switch is “ON” its binary count is inactive. The
various DIP switch combinations of ON or OFF make up a binary total, which identifies the channel
number.
To select a channel, set the appropriate DIP switch or switches to “OFF” to make the binary count total
the channel number you want. Set all other switches to “ON”.
Example: To select channel 1, set the DIP switches as shown below:
CHANNEL SWITCH TX - RX
Binary Value
16
32
64
Always ON except when
default channel is required
Figure 17 - Backplane DIP switches example - Channel 1 selected
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5.2
Series II Radio Tuning
This section covers some basic Series II base station modules radio tuning and verification for:
- UHF (T85x-xx-0250) and
- 800 MHz MHz (T88x-xx-0200).
Note: Usually, this section is never done unless called for in section 5.1 “Series II - Radio Programming” or in Table 4 - Checklist B (General)“Checklist B” (General).
To identify the radio modules, check the part number on the manufacturer’s label at the back of the
Receiver, Exciter, and Power Amplifier modules:
RX
TX
PA
T885-10-0200 (800-870 MHz, 25kHz)
T885-15-0200 (800-870 MHz, 12.5kHz
& NPSPAC)
T885-30-0200 (890-960 MHz, 25kHz)
T885-35-0200 (890-960 MHz, 12.5kHz)
T881-1x-0200 (800-870 MHz)
T881-1x-0200 (800-870 MHz)
T881-3x-0200 (890-960 MHz)
T881-3x-0200 (890-960 MHz)
T889-10 (850-870 MHz)
TPL- PA8-2BF-LMS (890-960)
T855-10-0250 (400 - 440 MHz, 25kHz)
T855-15-0250 (400 - 440 MHz, 12.5kHz)
T855-20-0250 (440 - 480 MHz, 25kHz)
T855-25-0250 (440 - 480 MHz, 12.5kHz)
T855-30-0250 (480 - 530 MHz, 25kHz)
T855-35-0250 (480 - 530 MHz, 12.5kHz)
T857-1x-0250 (400 - 440 MHz)
T857-2x-0250 (440 - 480 MHz)
T857-3x-0250 (480 - 520 MHz)
T859-10-0000 (400 - 440 MHz)
T859-20-0000 (440 - 480 MHz)
T859-30-0000 (480 -520 MHz)
5.2.1 Test Equipment
Digital Multimeter & probes (e.g. Fluke 77)
1 HP 34330A Shunt 30A (UHF only, used for transmitter current measurement)
Digital or Analog calibrated Oscilloscope & scope probes (X1, X10 selectable)
Calibrated COM-120B (.001ppm OCXO and 30kHz IF options)
3-foot length of double-shielded N-M to BNC-M cable (RG-214 or RG-223)
2x 'BNC' to 'N' type adapters (e.g. Amphenol, Greenpar).
Bird RF power meter with 150W / 50 ohm dummy load (optional)
3dB 150–watt attenuator
1x Torx screwdriver #T-10 and #T-20
Pozidriv screwdriver #1 & #2
1x Six-inch adjustable wrench
RF tuning/trimming tools.
Extender Rail Kit for Series II chassis (T800-13-0000)
1x 6" coax cable N-M to BNC-M (comes with the radio to connect the exciter to the PA)
5.2.2 Receiver module (T885-xx-0200, T855-xx-0250)
Note 1: Refer to Figure 20 (T885), Figure 22 (T855)
Note 2: When the synthesizer is unlocked, the front panel green LED called "Supply" will flash
indicating that it needs re-tuning.
Warning,
The LED will also flash when the unit is in setup mode while connected to the
PGM800win program.
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5.2.2.1 Initial Setup
This initial setup will be used during all receiver alignment procedures described below:
1. Remove the receiver (T885, T855) module from the Paragon-III rack frame
2. Remove the receiver top cover (nearest the handle).
3. Connect the Paragon-III Extender Rail Kit for Series II to the empty chassis receiver slot.
4. Prepare the Multimeter to DC Volts.
5. Apply power to the Paragon-III.
5.2.2.2 Synthesizer Alignment
Single channel: Connect the Multimeter to either side of L504 (T885) or the long lead of L1
(T855) in the VCO (this measures the synthesizer loop voltage).
1. T885 (800 MHz) Tune VCO trimmer CV500 for a synthesizer loop voltage of 10VDC.
2. T855 (UHF) Tune VCO trimmer C6 for a synthesizer loop voltage of 10V DC.
Multiple channels (adjusting as shown for single channel above):
1. T885 (800 MHz) Adjust the VCO loop to 10V using the middle frequency channel.
2. T855 (UHF) Adjust the VCO loop to 10V using the middle frequency channel.
3. All channels should lie within the upper and lower limits of respectively
All channels should lie within the upper and lower limits of 16V and 3V respectively for
the T885 and T855 or within 13V.
5.2.2.3 Front-End Alignment
1. IFR COM120B settings:
a) Connect a 3 feet long double shielded cable (N-M to BNC-M) between the IFR T/R output and the
receiver antenna connector.
b) Select the generator mode (GEN button) and set to the main receiver channel frequency
c) Select and turn-on GEN2
d) Set the FM Deviation to ±3kHz (full channel) or ±1.5kHz (half channel) using 1KHz sine
e) Select SINAD meter
f) Use a X1 scope probe connected to SINAD input and monitor the Discriminator O/P on the backplane at SK1 pin 6 (RX-audio1). Alternately, it is also possible to monitor at the receiver I/O Pad
P207 (T885), the receiver TP314 (T855).
2. Adjust the helical resonators for best SINAD: #H400, #H401 and #H900 (T885); #FL410 and #FL420
(T855).
3. Continually decrease the RF level to reach 12dB SINAD, then re-do step 2) & 3) again. The absolute
minimum requirement level to reach is -108dBm (typical level is -109 to -110 dBm)
4. Perform the SINAD linearity tests described in paragraph 5.2.2.4. If it fails to pass the requirement,
contact your Dataradio technical support.
WARNING: Do NOT attempt to re-tune the IF stages
(I.e. L300 and L301 for T885, L310 to L390 for T855 or L330 to L360).
These adjustments do not need to be re-adjusted after frequency re-programming. Touching these
coils will have a direct impact on the modem DSP ISI coefficient settings and may reduce significantly the radio performances over data.
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5.2.2.4 SINAD and Linearity Check
1. Apply the following settings to the IFR COM-120:
a) Generator mode, Output T/R, TX frequency to match the main radio RX frequency
b) Filter set to wide band (no audio filter)
c) Select Gen2 (Modulating tone fixed to 1KHz). All other Gen must be off.
d) Set deviation to ±3.0KHz for full channel or ±1.5KHz for half channel radios.
e) Use a X1 scope probe connected to the IFR SINAD input and monitor the Discriminator O/P on the
radio backplane at SK1 pin 6 (RX-audio1). Alternately, it is also possible to monitor at the receiver
I/O Pad P207 (T885), the receiver TP314 (T855).
2. Lower the RF level to get a 12dB SINAD reading. Level should be better than -108dBm (including cable loss).
3. Offset the IFR TX frequency 2kHz (full channel) or 1kHz (half / NPSPAC channel) above the main
radio RX frequency, record the SINAD reading. It should remain within 1.5 dB from the on frequency
SINAD reading. For T885 and T855, use above values.
4. Offset the IFR TX frequency 2KHz (full channel) or 1kHz (half / NPSPAC channel) below the main
radio RX frequency, record the SINAD reading. It should remain within 1.5 dB from the on-frequency
SINAD reading. For T885 and T855, use above values.
Note: If one of the above requirements is not met, try to re-tune the front-end. If still failed, contact
your Dataradio technical support.
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5.2.2.5 RSSI Adjustment
- Caution: mis-adjusting RSSI may reduce the Paragon-III's Parallel Decode (PD) performance.
- BDLC-III must be connected to the radio chassis assembly during this process.
1. T885-xx-0200 (800 MHz) and T855-xx-0250 (UHF) receivers:
Refer to Figure 20 - T885-0200 Receiver Tuning Controls location or
- Figure 22 - T855 Receiver Tuning Controls location
- Apply an on-channel signal from the RF generator at a level of -110 dBm modulated by a 1 kHz tone at
a deviation of ±3kHz (full channel) or ±1.5kHz (half / NPSPAC channel).
- Adjust RV 345 (RSSI level) for T885, RV320 (RSSI level) for T855 to give 2.0V RSSI output at
SK330 pin 2 (T855) or on backplane J1 (RX1) or J5 (RX2) pin 5 when measured with a voltmeter (See
Figure 11 - 280 03425-001 Radio backplane for test point location).
The following RSSI graphics are given as general information only.
Refer to factory technical support only if RX data performance degradation is noticed combined with
something that does not look like those RSSI curves.
Voltage
dBm
-120 -110 -100 -90
-80
-70
Figure 18 - T855 and T885, Typical RSSI Curve: volt to dBm
5.2.3 Exciter Module (T881-xx-0200,T857-xx-0250)
Note 1: Refer to Figure 21 (T881), Figure 23 (T857) for locating tuning controls and components.
Note 2: When the synthesizer is unlocked, the front panel green LED called "Supply" will flash indicating that it needs re-tuning.
Warning:
The LED will also flash when the unit is in setup mode while connected to the PGM800win program.
5.2.3.1
Initial Setup
1.
2.
3.
4.
5.
Shut down power to the base station.
Prepare the Multimeter to DC Volts.
Remove the exciter (T881, T857) module from the base station rack frame.
Remove the exciter top cover (nearest the handle).
Connect a 3 feet long double shielded cable (N-M to BNC-M) between the IFR T/R output and
the exciter antenna connector.
6. Connect the Paragon-III Extender Rail Kit to the empty chassis exciter slot.
7. Apply power to the base station.
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5.2.3.2
Synthesizer Alignment
Single channel: Connect the Multimeter to either side of L309 (T881) or the long lead of L1 in the
VCO (T857) (this measures the synthesizer loop voltage).
1. T881 (800 MHz) Tune VCO trimmer CV300 for a synthesizer loop voltage of 10V DC.
2. T857 (UHF) Tune VCO trimmer C6 for a synthesizer loop voltage of 10V DC.
Multiple channels (adjusting as shown for single channel above):
1. T881 (800 MHz) Adjust the VCO loop to 10V using the middle frequency channel.
2. T857 (UHF) Adjust the VCO loop to 10V using the middle frequency channel.
All channels should lie within the upper and lower limits of 16V and 3V respectively for the
T881 and T857 or within 13V.
Note:
Normally, the fast TX key option is installed and the synthesizer is always energized. In the case where that option was not fitted, key the transmitter by pressing
the front panel Carrier button to make the above adjustment possible.
5.2.3.3
TX Frequency Error Adjustment
1. Apply the following settings to the IFR:
- Receiver mode
- IFR RX frequency to match the main radio TX frequency
- IF Filter set to 30KHz
- Zoom the RF Error window: select 10Khz range
2. Key the transmitter by pressing the front panel TX-Key button and measure the carrier output
frequency. It should be within ±300 Hz. If it is not, adjust the TCXO (IC700) to trim to meet the
requirement, preferably within 100Hz.
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5.2.3.4
Low-Frequency Balance Adjustment
Note:
•
PGM800Win version 3.00 or later must be used. Electronic potentiometer (256 step) is
used to allow channel adjustment of two-point modulation (Low freq. balance).
1. Apply the following settings to the IFR:
– Receiver mode and Oscilloscope display (Source Demod out connector, DC coupled).
– IFR RX frequency to match the radio transmit frequency
– IF Filter set to 30KHz
– Zoom the Deviation window: select 10kHz Range and DC coupling.
2. Select the active or, the lowest (in the case of multi-channel base) frequency channel (via dip
switch, refer to Figure )
3. Transmit a square wave by using CDip (using a second serial port).
4. Press EPOTs button. Adjust IC220 via PGM800Win “reference modulation” to obtain the best
square wave, no damping, no overshoot. (You can use either the mouse or up and down arrow
keys). Record the deviation read.
5. For single-channel unit, proceed to step 8.
6. For multi-channel unit, select the highest frequency channel. Transmit a square wave via CDip
and record deviation again.
7. The difference in deviation between the two channels should be less than ±300Hz. If not, readjust IC220 to "average" the square wave shape on both channels until the spec is met.
8. To confirm the adjustment, select the active, or the lowest frequency channel. Compare the deviation produced between 1000 Hz sine wave test tone and Random data test pattern
The difference between the test tone and the test pattern should be:
< 1.6 kHz (SRC4FSK, SRC8FSK: HC & NPSPAC)
< 2.1 kHz (SRC4FSK, SRC8FSK, SRC16FSK: FC)
For multi-channel unit, repeat this step on the highest frequency channel.
9. Select the active channel. Transmit a TX ON (Modulated) adjustment tone via CDip. Make sure
that deviation level read on the IFR correspond to model and bit rate in use. Re-adjust deviation
as necessary referring to Checklist B at step 6, page .
5.2.3.5
Exciter Power Output
1. Apply the following settings to the IFR:
- Receiver mode, Output T/R
- IFR RX frequency to match the main radio TX frequency
- IF Filter set to 30KHz
- Select auto range in the Power reading window
- Connect the coaxial cable from the IFR T/R to the Exciter output connector
2. Key the Exciter by pressing the module PTT button. The output power at the coaxial cable end
connecting to the power amplifier should be:
- UHF (T857) = 1W ±300mW (no adjustment provided)
- 800 MHz (T881) = 4W ±300mW (RV502, Figure 21)
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5.2.4 Power Amplifier Module (T889 (800-870 MHz only), T859)
5.2.4.1
Re-install the exciter module into the Paragon-III rack frame.
Connect the Exciter module to the Power Amplifier.
Connect the Power Amplifier output to the IFR T/R connector or to a stand-alone BIRD style
power meter, terminated with a 150W dummy load.
Forward and reverse power alarm set (control) are identified on the PA cover.
Power Amplifier Power Output
Key the transmitter on the exciter and adjust the PA output for required output (max 100W for
UHF and max 70W for 800) using the front panel power control
If power cannot be reached, refer to section 5.2.4.4 for T859 UHF model, or factory technical
support for T889 models. Cable loss should be included in the reading.
5.2.4.2
Forward Power Alarm Level (Optional setting)
1. Power up the PA and adjust front panel power control so that the output power is at the alarm
level required, usually 20% lower than nominal value (e.g. 40W if the PA normally operates at
50W).
2. Adjust the forward power alarm set (T889: RV101and T859: RV48) so that the forward power
alarm LED lights.
3. Adjust front panel power control for the normal operating power level
5.2.4.3
Reverse Power Alarm Level (Optional setting)
1. Power up the PA and adjust the front panel power control for the normal operating power level.
2. Connect an unterminated 3dB 150 W pad to the PA output (e.g. 3:1 VSWR) and adjust the
reverse power alarm set (T889: RV105 and T859: RV52) so that the reverse power alarm LED
lights.
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5.2.4.4
Tait T859 (UHF) Standard Tuning Procedure
1. For sets with serial numbers following 217262, set RV69 (driver power level) fully clockwise.
2. For all units, preset the tuning controls as shown in Figure 19
Figure 19 - T859 Tuning settings
3.
4.
5.
6.
7.
8.
9.
10.
11.
Set RV63 (front panel power control) fully clockwise.
Key on the exciter (press PTT button).
Adjust CV1 for maximum output.
Adjust CV8 for maximum output.
Adjust CV32 for maximum output.
Adjust CV51 and CV57 for maximum output.
Adjust CV34 and CV35 for maximum output.
Recheck all settings. The power output should exceed 110W.
For sets with serial numbers following 217262, adjust RV69 (driver power level) until
the output power drops to 110W.
12. For all units, adjust RV63 (front panel power control) to reduce the power output to the required
level (normally 100W).
5.2.4.5
Tait T859 Tuning for Best Efficiency
1. Insert a Shunt current device (HP 34330A Shunt 30A ) between the power supply red wire and
its 13.8Vdc output, then connect the shunt to the multimeter (VDC scale)
2. While transmitting, monitor the current. It should remain under 22A.
3. Retune CV32, CV51 and CV57 towards maximum capacitance to obtain minimum supply current, but do not exceed a maximum drop of 0.5A per control.
4. Check that the supply current is <22A for 100W output power.
Note: These control settings are normally very close to minimum supply current. If the current is reduced too far, maximum power output will drop and 2f rejection may degrade.
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Figure 20 - T885-0200 Receiver Tuning Controls location
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Figure 21 - T881-0200 Exciter Tuning Controls location
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IC 310
SK330 pin 2
Figure 22 - T855 Receiver Tuning Controls location
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TCXO
Figure 23 - T857 Exciter Tuning Controls location
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6. Specifications
GENERAL
Frequency
RF/Modem Assembly Size
UHF
800
400 - 440 MHz1
440 - 480 MHz
480 - 520 MHz
800 - 870 MHz
19.0” W x 17.5.0” H x 12.5” D + 2.0” connector allowance
1.0 ppm (-20 to +60ºC)
Frequency Stability
Supply Voltage
13.8 VDC nominal (negative ground), 10.8 - 16 VDC
or
120 VAC
Circuit protection (radio backplane)
Main fuse (F1): Blade fuse (Maxi-Fuse) 10A :
Power amp. fuse (F2 & F3): Blade fuses (Maxi-Fuse) 2 x 15A (30A total)
Crowbar diodes for reverse polarity protection
RX Current Consumption @ 13.8
VDC
1.5A max. (Two receivers with speaker monitoring)
24A (22A DC typical @
450MHz for 100W)
TX Current Consumption @ 13.8 VDC
Base Station Power Consumption
@ 120 VAC
28A (23A DC typical @ 850MHz for
70W)
6A max.
Channel spacing
25 kHz and 12.5 kHz
Operating Temperature Range
-30°C to +60°C (deleted power supply, catalog number with 0 in second to last digit)
-10°C to +60°C (with standard Dual Power Supply assy., catalog number with 2 in second to last digit)
RECEIVER
Selectivity @ 25 kHz
@ 12.5 kHz
87 dB min, 90 dB (Typical)
83 dB min, 85 dB (Typical)
Sensitivity @ 12 dB SINAD
-116 dBm*
Spurious Response Rejection
100 dB (Typical)
Intermodulation Rejection
- EIA (25 kHz)
- EIA 300-096 (12.5 kHz)
Hum and Noise
- EIA (25 kHz)
- ETS 300-096 (12.5 kHz)
85 dB min, 88 dB (Typical)
79 dB min, 80 dB (Typical)
85 dB (Typical)
80 dB (Typical)
80 dB (Typical)
75 dB (Typical)
55 dB*
50 dB*
47 dB*
45 dB*
* Psophometrically weighted (De-emphasis response)
TRANSMITTER
Rated Continuous RF Power
Range of Adjustment
Spurious Emissions:
- transmit
- standby
100W
70W
20 – 100 W
20 – 70 W
-36 dBm to 1GHz, -30 dBm to 4 GHz (to 3.2GHz for 800 model)
-57 dBm to 1GHz, -47 dBm to 4 GHz ((to 3.2GHz for 800 model))
VSWR Stability
5:1 mismatch
Transmitter Sideband Noise
@ +/-25 kHz
@ +/- 1 MHz
-95 dBc
-105 dBc
-88 dBc
-100 dBc
WARNING: The frequency band 406 to 406.1 MHz is reserved for use by distress beacons and should not be programmed into
the unit.
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Operation
Protocol
Full duplex
Dataradio Proprietary NextGen with OOB AAVL support
SRRC4FSK (14400 b/s, 16000 b/s, 28800 b/s, 32000 b/s)
SRRC8FSK (21600 b/s, 24000 b/s, 43200 b/s, 48000 b/s)
SRRC16FSK ( 28800 b/s, 32000b/s, 57600 b/s 64000b/s )
Data rates and
Modulation type
Rx Sensitivity
for 1%
Packet Error Rate
with
Parallel Decode, at
carrier frequency
UHF
(Full channel)
UHF
(Half channel)
800 MHz
(full channel)
800 MHz
(NPSPAC)
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
FCC
FCC / IC CERTIFICATIONS
UHF
800 MHz
Series II
400 - 440 MHz
EOTBDD4T85-1
440 - 480 MHz
EOTBDD4T85-2
480 - 520 MHz
EOTBDD4T85-3
800 - 870 MHz
IC (DOC) *
773A-BDD4T85
N/A
EOTBDD4T881S2 (4Watts)
773A-BDD4T88
EOTBDD4T889 (70 Watts)
* Operating under Class II permissive change, approval pending for technical reassessment
EMISSION DESIGNATORS
Bit rate
Baud rate
4FSK 8FSK 16FSK
Pulse shaping
UHF
800MHz
SRRC
16K5F1D (C)
13K6F1D (G)
32000 48000 64000
16000
28800 43200 57600
14400
SRRC
16K2F1D (C)
13K4F1D (G)
16000 24000 32000
8000
SRRC
8K50F1D (D)
10K0F1D (H)
14400 21600 28800
7200
SRRC
8K67F1D (D)
10K7F1D (H)
TBD (D)
TBD (D)
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