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
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| Document Description | Users Guide |
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| Document Type | User Manual |
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| Filesize | 55.32kB (691467 bits) |
| Date Submitted | 2003-09-16 00:00:00 |
| Date Available | 2003-09-16 00:00:00 |
| Creation Date | 2003-08-08 20:09:44 |
| Producing Software | Acrobat Distiller 5.0.5 (Windows) |
| Document Lastmod | 2003-08-28 11:34:35 |
| Document Title | IM23-001-1-0-0.indb |
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| Document Author: | bharper |
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 Office. Module Manuals Included: IM23-UT400AMP Document Number: Revision: Revision Date: IM23-001 1-0-0 Aug 2003 Daniels Electronics Ltd. Victoria, BC PRINTED IN CANADA ii DOCUMENT CONTROL This document has been produced, verified and controlled in accordance with Daniels Electronics’ Quality Management System requirements. Please report any errors or problems to Daniels Electronics’ Customer Service Department. NOTE The user’s authority to operate this equipment could be revoked through any changes or modifications 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. P25 Digital UHF Transmitter Instruction Manual IM23-001 iii Contents General Information ............................................................... 1 Introduction ................................................................................................ 1 Performance Specifications ....................................................................... 2 Theory of Operation ............................................................... 5 General ...................................................................................................... 5 Jumper Functions and Standard Configuration ........................................ 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 Configuration........................................... 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 reflects 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 specification 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 Amplifier Instruction Manual: This manual provides information on alignment and operation of the 2 and 8 Watt RF amplifier 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 file on CD that is supplied in the Radio Service Software and Interface Kit. P25 Digital UHF Transmitter Instruction Manual IM23-001 2 General Information 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 amplifier. Performance Specifications General The following is a general set of specifications for the generic UT-4D400 transmitter. Additional specifications, specific 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: Project 25: System Impedance: 50 Ω; 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 11K0F3E or 16K0F3E (Frequency Modulation). 8K10F1E General Information PTT Time-Out-Timer: Programmable from 1 sec. to 8 hrs or infinity. (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 Specifications Audio Input: Balanced, 600Ω or optional unbalanced input (600 Ω or 15000Ω 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 4 This Page Intentionally Left Blank Physical Specifications 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 TRANSMITTER ASSEMBLY AND ADJUSTMENT 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 specifically 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. P25 Digital UHF Transmitter Instruction Manual IM23-001 19 REPEATER SYSTEM CONFIGURATION P25 Digital UHF Transmitter Instruction Manual IM23-001 23 ILLUSTRATIONS AND SCHEMATICS 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 identified 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) P25 Digital UHF Transmitter Instruction Manual IM23-001 24 Illustrations and Schematics P25 Digital Transmitter Front Panel P25 TRANSMITTER FACTORY SET OPERATING FREQUENCY FREQUENCY (MHz) 422.500 ANALOG TRANSMIT LED A D DIGITAL TRANSMIT LED NORM OFF KEY TX ON / OFF / KEY SWITCH ANALOG DIGITAL MIC MODE MICROPHONE MODE SELECTION SWITCH CNTL BUS RJ45 CONNECTORS RF OUT MIC DANIELS TYPE N RF OUTPUT JACK (Antenna) TM ELECTRONICS LTD. MADE IN CANADA MADE IN CANADA UT-4D150 TRANSMITTER MODEL IDENTIFIER DANIELS TM ELECTRONICS LTD. 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 TITLE: Digital Transmitter Front Panel DATE: 23 JUL 2003 DRAWN BY: Bryan Harper DWG No: B0297 REV DATE: - P25 Digital UHF Transmitter Instruction Manual IM23-001 31 PARTS LISTS P25 Digital Transmitter Electrical Parts List Ref Desig Description Part Number P25 Digital UHF Transmitter Instruction Manual IM23-001 37 REVISION HISTORY Revision Date ECO Description P25 Digital UHF Transmitter Instruction Manual IM23-001 UHF AMPLIFIER INSTRUCTION MANUAL UT-3 / UT-4 406-512 MHZ Covers Models: A23-UPA420-02 A23-UPA460-02 A23-UPA420-08 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 Office. Document Number: Revision: Revision Date: IM23-UT400AMP 1-1-0 Aug 2003 Daniels Electronics Ltd. Victoria, BC PRINTED IN CANADA ii DOCUMENT CONTROL This document has been produced, verified and controlled in accordance with Daniels Electronics’ Quality Management System requirements. Please report any errors or problems to Daniels Electronics’ Customer Service Department. NOTE The user’s authority to operate this equipment could be revoked through any changes or modifications 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. UHF Amplifier Instruction Manual IM23-UT400AMP iii RF Exposure Warning Exposure to radio frequency (RF) energy has been identified 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 field 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 sufficient basis for assuming compliance with FCC MPE limits. This exclusion is subject to the limits specified 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 significant 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 specifically 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] [2] [3] FCC Code of Regulations; 47 CFR §§ 1.1307 and 1.1310. FCC OET Bulletin 65, Edition 97-01, “Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields”. http://www.fcc.gov/oet/rfsafety/ UHF Amplifier Instruction Manual IM23-UT400AMP v Contents General Information ............................................................... 1 Introduction ................................................................................................ 1 Theory of Operation ............................................................... 3 Amplifier 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 Amplifier Alignment................................................. 7 General ...................................................................................................... 7 Repair Note................................................................................................ 7 Recommended Test Equipment List .......................................................... 8 Standard Factory Settings and Jumper Configuration ............................... 8 UT-3/400 Amplifier Alignment..................................................................... 8 UT-3/400 Amplifier Adjustment ....................................................................... 9 General Set-Up............................................................................................... 9 Output Power Alarm (Forward Power).......................................................... 10 Output Power................................................................................................ 10 Antenna VSWR Alarm (Reverse Power) .......................................................11 Procedure Verification ...................................................................................11 Illustrations and Schematics ................................................ 13 UT-3/400 UHF Amplifier Component Layout............................................ 14 UT-3/400 UHF Amplifier Schematic Diagram........................................... 15 UT-3/400 Amplifier Low Pass Filter Component Layout .......................... 16 UT-3/400 Amplifier Low Pass Filter Schematic Diagram ......................... 16 Parts Lists ............................................................................ 17 Electrical Parts List .................................................................................. 17 Mechanical Parts List............................................................................... 20 Revsion History.................................................................... 21 UHF Amplifier Instruction Manual IM23-UT400AMP 1 GENERAL INFORMATION Introduction The UT-3/400 Amplifier provides the final stage of RF amplification and filtering for the entire UHF Transmitter UT-3 and UT-4 406 -512 MHz family. The amplifier 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 Amplifier 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 Amplifier is equipped with output power and VSWR sensing lines that can be individually configured as open collector or linear outputs. The internal VSWR sensor protects the amplifier from high antenna VSWR by approximately halving the amplifier’s RF gain when a VSWR overload condition is present. The UT-3/400 Lowpass Filter Board provides output filtering for the UT-3/400 Amplifier. The lowpass filter assembly is mounted in a separate compartment of the amplifier case in order to provided maximum attenuation of harmonic and other spurious signals. UHF Amplifier Instruction Manual IM23-UT400AMP 2 General Information Performance Specifications Type: MT-3 series UHF Amplifier 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 Ω, 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 configuration); - 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. Amplifier Standby Current: less than 1.0 mA. Amplifier Enable: Active to ground. Amplifier Enable Response: typically overdamped, rising to within 90% of full power within 5 msec; maximum (underdamped) overshoot of 30%. UHF Amplifier Instruction Manual IM23-UT400AMP 3 THEORY OF OPERATION UHF Amplifier 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 specifically 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 Amplifier Instruction Manual IM23-UT400AMP 13 ILLUSTRATIONS AND SCHEMATICS 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 identified 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) UHF Amplifier Instruction Manual IM23-UT400AMP 17 PARTS LISTS UT-3/400 Amplifier Electrical Parts List Ref Desig Description Part Number UHF Amplifier Instruction Manual IM23-UT400AMP 21 REVSION HISTORY Revision Date ECO Description UHF Amplifier Instruction Manual IM23-UT400AMP
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