Codan Radio Communications UT-4D400 Ut-4D420 and UT-4D460 UHF Transmitters User Manual IM23 001 1 0 0 indb

Codan Radio Communications Ut-4D420 and UT-4D460 UHF Transmitters IM23 001 1 0 0 indb

Users Guide

P25 DIGITAL UHF
TRANSMITTER
INSTRUCTION MANUAL
UT-4D 406-470 MHZ
Covers Models:
UT-4D420-R0-X00 UT-4D460-R0-X00
Copyright © 2003 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.
DE™ is a registered trademark of Daniels Electronic Ltd. registered in
the U.S. Patent and Trademark Of ce.
Document Number:
Revision:
Revision Date:
IM23-001
1-0-0
Aug 2003
Daniels Electronics Ltd.
Victoria, BC
PRINTED IN CANADA
Module Manuals Included:
IM23-UT400AMP
P25 Digital UHF Transmitter Instruction Manual
IM23-001
ii
This document has been produced, veri ed and
controlled in accordance with Daniels Electronics’
Quality Management System requirements.
Please report any errors or problems to Daniels
Electronics’ Customer Service Department.
The user’s authority to operate this equipment could
be revoked through any changes or modi cations 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.
DOCUMENT CONTROL
NOTE
P25 Digital UHF Transmitter Instruction Manual
IM23-001
iii
Contents
General Information ...............................................................1
Introduction ................................................................................................1
Performance Speci cations .......................................................................2
Theory of Operation ...............................................................5
General ......................................................................................................5
Jumper Functions and Standard Con guration ........................................7
Test Points .................................................................................................8
Transmitter Programming ........................................................................ 10
Transmitter Assembly and Adjustment................................. 13
Repair Note.............................................................................................. 13
Transmitter Assembly and Adjustment..................................................... 14
Recommended Test Equipment List ........................................................ 14
Frequency Change .................................................................................. 14
Digital Signal Processor Board Alignment ............................................... 15
Repeater System Con guration........................................... 19
Digital Repeater ....................................................................................... 19
Repeater System Troubleshooting........................................................... 20
Illustrations and Schematics ................................................ 23
P25 Digital Transmitter Front Panel ......................................................... 24
P25 Digital Transmitter Block Diagram .................................................... 25
P25 Digital Transmitter Component Layout - Bottom............................... 26
P25 Digital Transmitter Component Layout - Top .................................... 27
P25 Digital Transmitter Schematic Diagram ............................................ 28
P25 Adapter Board Component Layout ................................................... 29
P25 Adapter Board Schematic Diagram .................................................. 29
Parts Lists ............................................................................ 31
P25 Digital Transmitter Electrical Parts List ............................................. 31
P25 Transmitter Mechanical Parts List .................................................... 34
P25 Adapter Board Parts List................................................................... 36
Revision History ................................................................... 37
P25 Digital UHF Transmitter Instruction Manual
IM23-001
1
GENERAL
INFORMATION
Manual Organization
The organization of this document re ects the
modular construction of the UT-4D family of
products. Each product is fully described within
its respective “sub-manual”; all of which are
contained within this document. In general, each
of these sub-manuals contain:
1. A functional description and speci cation
summary.
2. A detailed technical description (Theory of
Operation).
3. Assembly, setup and alignment procedures
relevant to the particular module.
The following sub-manual is contained within
this document cluster:
UHF Ampli er Instruction Manual: This
manual provides information on alignment
and operation of the 2 and 8 Watt RF ampli er
modules.
The following manual is also required for
alignment of the UT-4D family transmitter.
Radio Service Software Manual: This manual
provides instructions on using the PC-based
Radio Service Software package to perform
Transmitter alignment and frequency and mode
selection. This manual is available as a PDF
le on CD that is supplied in the Radio Service
Software and Interface Kit.
P25 Digital UHF Transmitter Instruction Manual
IM23-001
General Information
2
UT-4D400 Transmitter Family Models
There are four distinct models in the UT-4D400 Transmitter family each with different bands of
operation and power outputs. The four models are as follows:
• UT-4D420-2 406-430 MHz band, 0.5-2.0 Watt
• UT-4D420-8 406-430 MHz band, 2.0-8.0 Watt
• UT-4D460-2 450-470 MHz band, 0.5-2.0 Watt
• UT-4D460-8 450-470 MHz band, 2.0-8.0 Watt
The transmitters’ band of operation is determined by select components in the ampli er.
Performance Speci cations
General
The following is a general set of speci cations for the generic UT-4D400 transmitter. Additional
speci cations, speci c to individual modules may be found in their respective sub manuals.
Type: MT-4D Series Transmitter.
Family: UT-4 406 - 470 MHz.
Compatibility: MT-2, MT-3 and MT-4 Series Radio Systems, Project 25
interoperable.
Frequency Range: 406 to 430 MHz., 450 to 470 MHz
RF Power Output: 0.5 to 2.0 or 2.0 to 8.0 W Continuous.
Modulation: Analog: 11K0F3E or 16K0F3E (Frequency Modulation).
Project 25: 8K10F1E
System Impedance: 50 ; Type N connector.
Duty Cycle: 100%; Continuous operation from -30°C to +60°C.
Emissions: -70 dBc
Transmitter Mismatch 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: 1.7 Amps at 2 Watts RF Power Output,
2.8 Amps at 8 Watts RF Power Output
Front Panel Controls: NORM (repeat mode), OFF, and KEY TX (Tx on).
MIC MODE: ANALOG and DIGITAL.
PTT Activation: Active to ground; Microphone activated;
Front Panel switch: KEY TX
P25 Digital UHF Transmitter Instruction Manual
IM23-001
General Information 3
PTT Time-Out-Timer: Programmable from 1 sec. to 8 hrs or in nity. (Default 5 min.), using
Radio Service Software package.
Channel Spacing: 12.5 kHz or 25 kHz.
Frequency Stability: Standard: ±1.0 ppm, -30°C to +60°C.
Channel Selection: In 5.0 or 6.25 kHz increments selected with Radio Service Software
package.
Standby Current: Transmitter with no encryption modules installed:
Standby 75 mA
Transmitter with encryption modules installed:
Standby 105 mA
DOC Type Approval: TBA
FCC Type Acceptance: TBA
Audio Speci cations
Audio Input: Balanced, 600 or optional unbalanced input (600 or 15000
selectable input impedance)
Audio Response: Pre-emphasis (6 dB per octave); +1 to -3 dB from 300 Hz to 3 kHz
Audio Deviation Limiting: +/- 2.5 kHz, +/- 5.0 kHz
Audio Distortion: < 3% THD; 1 kHz tone at 1.5 kHz or 3 kHz deviation
Hum and Noise: -34 dB typical
P25 Digital UHF Transmitter Instruction Manual
IM23-001
4This Page Intentionally Left Blank
Physical Speci cations
Physical Dimensions: Width: Height: Depth:
7.1 cm (2.8 in) 12.8 cm (5.05 in) 19 cm (7.5 in)
Module Weight: 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 Daniels standard M3 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 transmitter module
front panel. Motherboard Connections (Audio, Power, and Control)
are made through a 48 pin, gold plated, type F connector on the rear
of the transmitter module. User connection made through mated
“mother board” assembly of the repeater subrack. Type F standard
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). Digital I/O: 8-pin RJ-45
Handle Text Colour: Black
P25 Digital UHF Transmitter Instruction Manual
IM23-001
5
THEORY
OF OPERATION
P25 Digital UHF Transmitter Instruction Manual
IM23-001
13
Repair Note
The transmitter is mainly made up of surface
mount devices, which should not be removed
or replaced using an ordinary soldering iron.
Removal and replacement of surface mount
components should be performed only with
speci cally 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 braid in place
of manual vacuum type desoldering tools
when removing jumpers. This will help prevent
damage to the circuit boards.
TRANSMITTER ASSEMBLY
AND ADJUSTMENT
P25 Digital UHF Transmitter Instruction Manual
IM23-001
19
REPEATER SYSTEM
CONFIGURATION
P25 Digital UHF Transmitter Instruction Manual
IM23-001
23
Printed Circuit Board Numbering
Convention
Daniels Electronics Ltd. has adopted a printed
circuit board (PCB) numbering convention in
which the last two digits of the circuit board
number represent the circuit board version. All
PCB’s manufactured by Daniels Electronics Ltd.
are identi ed by one of the following numbering
conventions:
PCB number 43-912010
Indicates circuit board version 1.0
PCB number 50002-02
Indicates circuit board version 2
(no decimal version)
ILLUSTRATIONS AND
SCHEMATICS
P25 Digital UHF Transmitter Instruction Manual
IM23-001
Illustrations and Schematics
24
P25 Digital Transmitter Front Panel
DATE: 23 JUL 2003
TITLE: Digital Transmitter Front Panel
DRAWN BY: Bryan Harper
REV DATE: -
DWG No: B0297
DANIELS
ELECTRONICS LTD.
TM
1
11
21
2
12
22
3
13
23
4
14
24
5
15
25
6
16
26
7
17
27
8
18
28
9
19
29
10
20
30
A
P25 TRANSMITTER
TRANSMITTER
MODEL IDENTIFIER
MICROPHONE MODE
SELECTION SWITCH
TYPE N
RF OUTPUT JACK
(Antenna)
RJ45 CONNECTORS
FACTORY SET
OPERATING
FREQUENCY
MADE IN CANADA
UT-4D150
ANALOG TRANSMIT
LED
422.500
CNTL
BUS
A
B
MIC RF OUT
AD
OFF
KEY TX
NORM
FREQUENCY (MHz)
MADE IN CANADA
DANIELS
ELECTRONICS LTD.
TM
DIGITAL TRANSMIT
LED
MIC MODE DIGITAL
ANALOG
ON / OFF / KEY SWITCH
P25 Digital UHF Transmitter Instruction Manual
IM23-001
31
P25 Digital Transmitter Electrical Parts List
Ref
Desig Description Part Number
PARTS LISTS
P25 Digital UHF Transmitter Instruction Manual
IM23-001
37
Revision Date ECO Description
REVISION HISTORY
UHF AMPLIFIER
INSTRUCTION MANUAL
UT-3 / UT-4 406-512 MHZ
Covers Models:
A23-UPA420-02 A23-UPA420-08
A23-UPA460-02 A23-UPA460-08
Copyright © 2003 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.
DE™ is a registered trademark of Daniels Electronic Ltd. registered in
the U.S. Patent and Trademark Of ce.
Document Number:
Revision:
Revision Date:
IM23-UT400AMP
1-1-0
Aug 2003
Daniels Electronics Ltd.
Victoria, BC
PRINTED IN CANADA
UHF Ampli er Instruction Manual
IM23-UT400AMP
ii
This document has been produced, veri ed and
controlled in accordance with Daniels Electronics’
Quality Management System requirements.
Please report any errors or problems to Daniels
Electronics’ Customer Service Department.
The user’s authority to operate this equipment could
be revoked through any changes or modi cations 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.
DOCUMENT CONTROL
NOTE
UHF Ampli er Instruction Manual
IM23-UT400AMP
iii
RF Exposure Warning
Exposure to radio frequency (RF) energy has been identi ed as a potential environmental factor that must be
considered before a radio transmitter can be authorized or licensed. The FCC has therefore developed maximum
permissible exposure (MPE) limits for eld strength and power density, listed in FCC 47 CFR § 1.1310. 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) provides assistance in determining whether a proposed or existing
transmitting facility, operation or device complies with RF exposure limits. In accordance with OET Bulletin 65
and FCC 47 CFR § 1.1307 (b), this Daniels Electronics Ltd. transmitter is categorically excluded from routine
evaluation or preparing an EA for RF emissions and this exclusion is suf cient basis for assuming compliance
with FCC MPE limits. This exclusion is subject to the limits speci ed in FCC 47 CFR §§ 1.1307 (b) and 1.1310.
Daniels Electronics Ltd. has no reason to believe that this excluded transmitter encompasses exceptional
characteristics that could cause non-compliance.
Notes: • The FCC’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’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 signi cant height above ground to provide adequate signal coverage. The
following antenna installation guidelines are extracted from Appendix A to 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 1000W 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 speci cally 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/
UHF Ampli er Instruction Manual
IM23-UT400AMP
v
Contents
General Information ...............................................................1
Introduction ................................................................................................1
Theory of Operation ...............................................................3
Ampli er Operation ....................................................................................3
Power Requirements .................................................................................4
RF Circuitry ................................................................................................4
UT-3/400 Lowpass Filter................................................................................. 4
Power Control Circuitry................................................................................... 4
Power Sensing Circuitry ................................................................................. 4
Output Power Sense ...................................................................................... 5
VSWR Sense.................................................................................................. 5
VSWR Overload ............................................................................................. 5
UT-3/400 Ampli er Alignment.................................................7
General ......................................................................................................7
Repair Note................................................................................................ 7
Recommended Test Equipment List .......................................................... 8
Standard Factory Settings and Jumper Con guration ...............................8
UT-3/400 Ampli er Alignment..................................................................... 8
UT-3/400 Ampli er Adjustment ....................................................................... 9
General Set-Up............................................................................................... 9
Output Power Alarm (Forward Power).......................................................... 10
Output Power................................................................................................ 10
Antenna VSWR Alarm (Reverse Power) .......................................................11
Procedure Veri cation ...................................................................................11
Illustrations and Schematics ................................................ 13
UT-3/400 UHF Ampli er Component Layout............................................ 14
UT-3/400 UHF Ampli er Schematic Diagram........................................... 15
UT-3/400 Ampli er Low Pass Filter Component Layout .......................... 16
UT-3/400 Ampli er Low Pass Filter Schematic Diagram ......................... 16
Parts Lists ............................................................................ 17
Electrical Parts List .................................................................................. 17
Mechanical Parts List............................................................................... 20
Revsion History.................................................................... 21
UHF Ampli er Instruction Manual
IM23-UT400AMP
1
GENERAL
INFORMATION
Introduction
The UT-3/400 Ampli er provides the nal stage
of RF ampli cation and ltering for the entire
UHF Transmitter UT-3 and UT-4 406 -512 MHz
family. The ampli er has four distinct frequency
ranges: 406 to 430 MHz, 450 to 470 MHz, 470
to 490 MHz and 490 to 512 MHz as well as two
distinct output power ranges: 0.5 to 2.0 Watts
and 2.0 to 8.0 Watts. The UT-3/400 Ampli er
is housed in a machined aluminum case that
ensures optimum RF shielding, provides a good
ground, and also acts as a heatsink.
Additionally, the UT-3/400 Ampli er is equipped
with output power and VSWR sensing lines that
can be individually con gured as open collector
or linear outputs. The internal VSWR sensor
protects the ampli er from high antenna VSWR
by approximately halving the ampli er’s RF gain
when a VSWR overload condition is present.
The UT-3/400 Lowpass Filter Board provides
output ltering for the UT-3/400 Ampli er. The
lowpass lter assembly is mounted in a separate
compartment of the ampli er case in order to
provided maximum attenuation of harmonic and
other spurious signals.
UHF Ampli er Instruction Manual
IM23-UT400AMP
General Information
2
Performance Speci cations
Type: MT-3 series UHF Ampli er module
Compatibility: MT-3 series Transmitter Main Board
MT-4 series Digital Transmitter Main Board
Frequency Range: 406 to 430 MHz, 450 to 470 MHz,
470 to 490 MHz, 490 to 512 MHz
RF Power Output: adjustable 0.5 to 2.0 Watts or 2.0 to 8.0 Watts
RF power Input: nominal level adjustable from 0 dBm to +5 dBm,
held within +/- 2 dB of nominal.
Ouput Impedance and VSWR: 50 , Type N connector; 3:1 max. VSWR.
Input /Output Isolation: > 60 dB
Duty Cycle: 100%: Continuous operation from -40˚ C to +60˚C.
Harmonic Emissions: Less than -90 dBc .
Transmitter Mismatch Protection: 20:1 VSWR at all phase angles.
Transmitter Alarm: Forward power sense and reverse VSWR;
- open collector output (separate or ‘OR’ed con guration);
- linear output (separate lines only).
Operating Temperature Range: -30˚ C to +60˚ C, optional -40˚ C temperature test.
Operating Humidity: 95% RH (non-condensing) at +25˚ C.
Operating Voltage: +13.8 Vdc Nominal (range +11 to +16 Vdc),
+9.5 Vdc Regulated.
Ampli er Standby Current: less than 1.0 mA.
Ampli er Enable: Active to ground.
Ampli er Enable Response: typically overdamped, rising to within 90% of full power within 5 msec;
maximum (underdamped) overshoot of 30%.
UHF Ampli er Instruction Manual
IM23-UT400AMP
3
THEORY
OF OPERATION
UHF Ampli er Instruction Manual
IM23-UT400AMP
7
UT-3/400 AMPLIFIER
ALIGNMENT
Repair Note
The UT-3/400 Transmitter is mainly made up
of surface mount devices which should not be
removed or replaced using an ordinary soldering
iron. Removal and replacement of surface
mount components should be performed only
with speci cally designed surface mount rework
and repair stations complete with Electrostatic
Dissipative (ESD) protection.
When removing Surface Mount Solder Jumpers,
it is recommended to use solder braid in place
of manual vacuum type desoldering tools
when removing jumpers. This will help prevent
damage to the circuit boards.
UHF Ampli er Instruction Manual
IM23-UT400AMP
13
Printed Circuit Board Numbering
Convention
Daniels Electronics Ltd. has adopted a printed
circuit board (PCB) numbering convention in
which the last two digits of the circuit board
number represent the circuit board version. All
PCB’s manufactured by Daniels Electronics Ltd.
are identi ed by one of the following numbering
conventions:
PCB number 43-912010
Indicates circuit board version 1.0
PCB number 50002-02
Indicates circuit board version 2
(no decimal version)
ILLUSTRATIONS
AND SCHEMATICS
UHF Ampli er Instruction Manual
IM23-UT400AMP
17
UT-3/400 Ampli er Electrical Parts List
Ref
Desig Description Part Number
PARTS LISTS
UHF Ampli er Instruction Manual
IM23-UT400AMP
21
Revision Date ECO Description
REVSION HISTORY

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