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 UHFTRANSMITTERINSTRUCTION MANUALUT-4D 406-470 MHZCovers Models:UT-4D420-R0-X00 UT-4D460-R0-X00Copyright © 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 Offi ce.Document Number:Revision:Revision Date:IM23-0011-0-0Aug 2003Daniels Electronics Ltd.Victoria, BCPRINTED IN CANADAModule Manuals Included:IM23-UT400AMP
P25 Digital UHF Transmitter Instruction ManualIM23-001 iiThis document has been produced, verifi 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 modifi 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 CONTROLNOTE
P25 Digital UHF Transmitter Instruction ManualIM23-001 iiiContentsGeneral Information ...............................................................1Introduction ................................................................................................1Performance Specifi cations .......................................................................2Theory of Operation ...............................................................5General ......................................................................................................5Jumper Functions and Standard Confi guration ........................................7Test Points .................................................................................................8Transmitter Programming ........................................................................ 10Transmitter Assembly and Adjustment................................. 13Repair Note.............................................................................................. 13Transmitter Assembly and Adjustment..................................................... 14Recommended Test Equipment List ........................................................ 14Frequency Change .................................................................................. 14Digital Signal Processor Board Alignment ............................................... 15Repeater System Confi guration........................................... 19Digital Repeater ....................................................................................... 19Repeater System Troubleshooting........................................................... 20Illustrations and Schematics ................................................ 23P25 Digital Transmitter Front Panel ......................................................... 24P25 Digital Transmitter Block Diagram .................................................... 25P25 Digital Transmitter Component Layout - Bottom............................... 26P25 Digital Transmitter Component Layout - Top .................................... 27P25 Digital Transmitter Schematic Diagram ............................................ 28P25 Adapter Board Component Layout ................................................... 29P25 Adapter Board Schematic Diagram .................................................. 29Parts Lists ............................................................................ 31P25 Digital Transmitter Electrical Parts List ............................................. 31P25 Transmitter Mechanical Parts List .................................................... 34P25 Adapter Board Parts List................................................................... 36Revision History ................................................................... 37
P25 Digital UHF Transmitter Instruction ManualIM23-0011GENERAL INFORMATION Manual OrganizationThe organization of this document refl 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 specifi 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 Amplifi er Instruction Manual: This manual provides information on alignment and operation of the 2 and 8 Watt RF amplifi 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 fi le on CD that is supplied in the Radio Service Software and Interface Kit.
P25 Digital UHF Transmitter Instruction ManualIM23-001General Information2UT-4D400 Transmitter Family ModelsThere 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 WattThe transmitters’ band of operation is determined by select components in the amplifi er. Performance Specifi cationsGeneralThe following is a general set of specifi cations for the generic UT-4D400 transmitter. Additional specifi cations, specifi 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 MHzRF Power Output: 0.5 to 2.0 or 2.0 to 8.0 W Continuous.Modulation: Analog: 11K0F3E or 16K0F3E (Frequency Modulation).Project 25: 8K10F1ESystem Impedance: 50 Ω; Type N connector.Duty Cycle: 100%; Continuous operation from -30°C to +60°C.Emissions: -70 dBcTransmitter 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 OutputFront 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 ManualIM23-001General Information 3PTT Time-Out-Timer: Programmable from 1 sec. to 8 hrs or infi 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 mATransmitter with encryption modules installed:Standby ≤ 105 mADOC Type Approval: TBAFCC Type Acceptance: TBAAudio Specifi cationsAudio 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 kHzAudio Deviation Limiting: +/- 2.5 kHz, +/- 5.0 kHzAudio Distortion: < 3% THD; 1 kHz tone at 1.5 kHz or 3 kHz deviationHum and Noise: -34 dB typical
P25 Digital UHF Transmitter Instruction ManualIM23-0014This Page Intentionally Left BlankPhysical Specifi cationsPhysical 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-45Handle Text Colour: Black
P25 Digital UHF Transmitter Instruction ManualIM23-0015THEORY OF OPERATION
P25 Digital UHF Transmitter Instruction ManualIM23-00113Repair NoteThe 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 specifi 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 ManualIM23-00119REPEATER SYSTEM CONFIGURATION
P25 Digital UHF Transmitter Instruction ManualIM23-00123Printed Circuit Board Numbering ConventionDaniels 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 identifi ed by one of the following numbering conventions:PCB number 43-912010 Indicates circuit board version 1.0PCB number 50002-02 Indicates circuit board version 2 (no decimal version)ILLUSTRATIONS AND SCHEMATICS
P25 Digital UHF Transmitter Instruction ManualIM23-001Illustrations and Schematics24P25 Digital Transmitter Front PanelDATE: 23 JUL 2003TITLE: Digital Transmitter Front PanelDRAWN BY: Bryan HarperREV DATE: -DWG No: B0297DANIELSELECTRONICS LTD.TM111212122231323414245152561626717278182891929102030AP25 TRANSMITTERTRANSMITTERMODEL IDENTIFIER MICROPHONE MODESELECTION SWITCHTYPE N RF OUTPUT JACK(Antenna) RJ45 CONNECTORSFACTORY SET OPERATINGFREQUENCYMADE IN CANADAUT-4D150ANALOG TRANSMIT LED422.500CNTLBUSABMIC RF OUTADOFFKEY TXNORMFREQUENCY (MHz)MADE IN CANADADANIELSELECTRONICS LTD.TMDIGITAL TRANSMIT LEDMIC MODE DIGITALANALOGON / OFF / KEY SWITCH
P25 Digital UHF Transmitter Instruction ManualIM23-00131P25 Digital Transmitter Electrical Parts ListRefDesig Description Part NumberPARTS LISTS
P25 Digital UHF Transmitter Instruction ManualIM23-00137Revision Date ECO DescriptionREVISION HISTORY
UHF AMPLIFIERINSTRUCTION MANUALUT-3 / UT-4 406-512 MHZCovers Models:A23-UPA420-02 A23-UPA420-08A23-UPA460-02 A23-UPA460-08Copyright © 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 Offi ce.Document Number:Revision:Revision Date:IM23-UT400AMP1-1-0Aug 2003Daniels Electronics Ltd.Victoria, BCPRINTED IN CANADA
UHF Amplifi er Instruction ManualIM23-UT400AMP iiThis document has been produced, verifi 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 modifi 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 CONTROLNOTE
UHF Amplifi er Instruction ManualIM23-UT400AMP iiiRF Exposure WarningExposure to radio frequency (RF) energy has been identifi 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 fi 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 suffi cient basis for assuming compliance with FCC MPE limits. This exclusion is subject to the limits specifi 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 InformationBase and Repeater radio transmitters are designed to generate and radiate RF energy by means of an external antenna, typically mounted at a signifi 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 specifi 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 Amplifi er Instruction ManualIM23-UT400AMP vContentsGeneral Information ...............................................................1Introduction ................................................................................................1Theory of Operation ...............................................................3Amplifi er Operation ....................................................................................3Power Requirements .................................................................................4RF Circuitry ................................................................................................4UT-3/400 Lowpass Filter................................................................................. 4Power Control Circuitry................................................................................... 4Power Sensing Circuitry ................................................................................. 4Output Power Sense ...................................................................................... 5VSWR Sense.................................................................................................. 5VSWR Overload ............................................................................................. 5UT-3/400 Amplifi er Alignment.................................................7General ......................................................................................................7Repair Note................................................................................................ 7Recommended Test Equipment List .......................................................... 8Standard Factory Settings and Jumper Confi guration ...............................8UT-3/400 Amplifi er Alignment..................................................................... 8UT-3/400 Amplifi er Adjustment ....................................................................... 9General Set-Up............................................................................................... 9Output Power Alarm (Forward Power).......................................................... 10Output Power................................................................................................ 10Antenna VSWR Alarm (Reverse Power) .......................................................11Procedure Verifi cation ...................................................................................11Illustrations and Schematics ................................................ 13UT-3/400 UHF Amplifi er Component Layout............................................ 14UT-3/400 UHF Amplifi er Schematic Diagram........................................... 15UT-3/400 Amplifi er Low Pass Filter Component Layout .......................... 16UT-3/400 Amplifi er Low Pass Filter Schematic Diagram ......................... 16Parts Lists ............................................................................ 17Electrical Parts List .................................................................................. 17Mechanical Parts List............................................................................... 20Revsion History.................................................................... 21
UHF Amplifi er Instruction ManualIM23-UT400AMP1GENERAL INFORMATIONIntroductionThe UT-3/400 Amplifi er provides the fi nal stage of RF amplifi cation and fi ltering for the entire UHF Transmitter UT-3 and UT-4 406 -512 MHz family. The amplifi 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 Amplifi 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 Amplifi er is equipped with output power and VSWR sensing lines that can be individually confi gured as open collector or linear outputs. The internal VSWR sensor protects the amplifi er from high antenna VSWR by approximately halving the amplifi er’s RF gain when a VSWR overload condition is present. The UT-3/400 Lowpass Filter Board provides output fi ltering for the UT-3/400 Amplifi er. The lowpass fi lter assembly is mounted in a separate compartment of the amplifi er case in order to provided maximum attenuation of harmonic and other spurious signals.
UHF Amplifi er Instruction ManualIM23-UT400AMPGeneral Information2Performance Specifi cationsType: MT-3 series UHF Amplifi er moduleCompatibility: MT-3 series Transmitter Main BoardMT-4 series Digital Transmitter Main BoardFrequency Range: 406 to 430 MHz, 450 to 470 MHz, 470 to 490 MHz, 490 to 512 MHzRF Power Output: adjustable 0.5 to 2.0 Watts or 2.0 to 8.0 WattsRF 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 dBDuty 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 confi 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.Amplifi er Standby Current: less than 1.0 mA.Amplifi er Enable: Active to ground.Amplifi er Enable Response: typically overdamped, rising to within 90% of full power within 5 msec; maximum (underdamped) overshoot of 30%.
UHF Amplifi er Instruction ManualIM23-UT400AMP3THEORY OF OPERATION
UHF Amplifi er Instruction ManualIM23-UT400AMP7UT-3/400 AMPLIFIER ALIGNMENTRepair NoteThe 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 specifi 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 Amplifi er Instruction ManualIM23-UT400AMP13Printed Circuit Board Numbering ConventionDaniels 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 identifi ed by one of the following numbering conventions:PCB number 43-912010Indicates circuit board version 1.0PCB number 50002-02Indicates circuit board version 2(no decimal version)ILLUSTRATIONS AND SCHEMATICS
UHF Amplifi er Instruction ManualIM23-UT400AMP17UT-3/400 Amplifi er Electrical Parts ListRefDesig Description Part NumberPARTS LISTS
UHF Amplifi er Instruction ManualIM23-UT400AMP21Revision Date ECO DescriptionREVSION HISTORY

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