H4JVT-4D150VT-4D140 and VT-4D160 VHF Transmitters

P25 DIGITAL VHF TRANSMITTER INSTRUCTION MANUAL VT-4D 136-174 MHZ Covers Models: VT-4D140-R0-000 VT-4D160-R0-000 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 Offi ce. Document Number: Revision: Revision Date: IM21-001 1-0-0 Aug 2003 Daniels Electronics Ltd. Victoria, BC PRINTED IN CANADA Module Manuals Included: IM21-VT3150AMP P25 Digital VHF Transmitter Instruction Manual IM21-001 ii This 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 CONTROL NOTE P25 Digital VHF Transmitter Instruction Manual IM21-001 iii Contents General Information ...............................................................1 Introduction ................................................................................................1 Performance Specifi cations .......................................................................2 Theory of Operation ...............................................................5 General ......................................................................................................5 Jumper Functions and Standard Confi guration ........................................7 Test Points .................................................................................................8 Transmitter Programming ........................................................................10 Transmitter Assembly and Adjustment.................................13 Repair Note ..............................................................................................13 Recommended Test Equipment List ........................................................14 Transmitter Assembly and Adjustment.....................................................14 Frequency Change ..................................................................................14 Digital Signal Processor Board Alignment ...............................................15 Repeater System Confi 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 Main Board Component Layout - Bottom ...........26 P25 Digital Transmitter Main Board 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 Digital Transmitter Mechanical Parts List .........................................34 P25 Adapter Board Parts List...................................................................35 Revision History ...................................................................37 P25 Digital VHF Transmitter Instruction Manual IM21-001 1 Manual Organization The organization of this document refl ects the modular construction of the VT-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 modular manual. VHF 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 VT-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. GENERAL INFORMATION P25 Digital VHF Transmitter Instruction Manual IM21-001 General Information 2 VT-4D150 Transmitter Family Models There are four distinct models in the VT-4D150 Transmitter family each with different bands of operation and power outputs. The four models are as follows: • VT-4D140-2 136-150 MHz band, 0.5-2.0 Watt • VT-4D140-8 136-150 MHz band, 2.0-8.0 Watt • VT-4D160-2 150-174 MHz band, 0.5-2.0 Watt • VT-4D160-8 150-174 MHz band, 2.0-8.0 Watt The transmitters’ band of operation is determined by select components in the amplifi er. Performance Specifi cations Blank line General The following is a general set of specifi cations for the generic VT-4D150 transmitter. Additional…

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DANIELS ELECTRONICS LTD. TM Telephone: (250) 382-8268 43 ERIE ST., VICTORIA, BC Fax: (250) 382-6139 CANADA, V8V 1P8 E-Mail: [email protected] Website: www.danelec.com RADIO COMMUNICATION MANUFACTURER FCC ID: H4JVT-4D150 August 20, 2003 Federal Communications Commission 7435 Oakland Mills Road Columbia, Maryland 21046 REQUEST FOR CONFIDENTIALITY Reference : FCC ID: H4JVT-4D150 In accordance with 47 CFR§ 0.457(d)(ii) and pursuant to 47 CFR§ 0.459(a), Daniels Electronics Ltd requests that the following exhibits submitted in support of this application not be made routinely available to the public: Exhibits : Operational Description Schematics and Illustrations Parts Lists The above-mentioned exhibits contain trade secret information which is not made routinely available to the public or to our competitors. Disclosure of this information could result in an unfair advantage to our competitors. This information should be treated as confidential for the duration of effectiveness of the Grant of Authorization. Regards Ron Backlund Manager, Projects & Regulatory Strategy Daniels Electronics Ltd. 43 Erie Street Victoria, BC V8V 1P8 Phone: (250) 382-8268 Ext 273 Fax: (250) 382-6139 E-Mail: [email protected] Web: www.danelec.com

Response to TCB Findings 1. A curve or equivalent data showing the frequency response of the audio modulating circuit over a range of 100 to 5000Hz shall be supplied as required by 2.1047(a). Response Freq. Response of Audio 25kHz Ch. Spacing I/P Freq. Demod. O/P (Hz) (dB) 100 -82 300 -19 500 -14.3 1500 -4.6 2000 -1.6 2500 0.1 3000 0 3500 -23 4000 -81.9 5000 -86.9 12.5kHz Ch. Spacing I/P Freq. Demod. O/P (Hz) (dB) 100 -75.8 300 -18.9 500 -14.3 1500 -4.4 2000 -1.7 2500 0.3 3000 0 3500 -23 4000 -74.8 5000 -72.8 2. Please supply modulation limiting curve required by 2.1047(b). Response VT-4D150, Modulation Limiting WB Modulation Limiting -1 0 1 2 3 4 5 8090100110120130140 (dBuV) Frequency Deviation (kHz) 300 Hz 1000 Hz 2500 Hz NB Modulation Limiting 0 0.5 1 1.5 2 2.5 8090100110120130140 (dBuV) Frequency Deviation (kHz) 300 Hz 1000 Hz 2500 Hz 3. For some of the spurious emissions at the antenna terminal plots the in the test report RBW is set to 10kHz. The minimum RBW setting should be 30kHz according to 22.359(c). Please justify/clarify this selection This test caused a dilemma. Part 22 and Part 90 have different requirements. P22 uses 30 kHz, P90 uses at least 10kHz(see 90.210(m). I showed 10 kHz assuming it would be relatively easy to calculate emission peaks from a 10 kHz to 30kHz RBW/VBW. It would also show a truer representation of the EUT, by lowering the N.F. of the analyzer. See attached plots. 4. Please describe how the signal substitution factors were determined for radiated emissions on pages 32 and 33 of the test report Response This data presented is the signal substitution method as per TIA/EIA-603. The emissions level column is the level obtained when reproducing the maximized emission with a substituted signal source as per the guides of the ANSI/TIA/EIA-603 signal substitution procedure. 5. Please point out the section in the operational description where we can find the "DC voltage and current levels in the final RF amplifier stage" of the transmitters. Response Voltage and current values for the RF Amplifiers are contained in the “General Setup” information of the Amplifier Alignment sections within the applicable Theory of Operation exhibits: a) Page 26 of the VT-4D150 VHF Transmitter Operational Description exhibit; and b) Page 25 of the UT-4D400 UHF Transmitter Operational Description exhibit.

FRONT PANEL BOTTOM TOP LEFT SIDE COVER EQUIPMENT ID LABEL FORMAT AND LOCATION FCC ID: H4JVT-4D150 VT-4D VHF Transmitter Dated thisday of20thAugust 2003 By:Ron Backlund Title: Applicant: Telephone: Manager, Projects & Regulatory Strategy Daniels Electronics Ltd. (250) 382-8268 PrintedSignature DANIELS ELECTRONICS LTD. MODEL: CANADA #: FCC ID: VT-4D150 H4JVT-4D150 10001 9/03 VICTORIA , B.C. CANADA SERIAL #: DATE: 142A-VT4D150

RF Exposure Warning Exposure 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 Information Base 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/

Master: FCCPart22-90.doc Date: February 13, 2002 Test Report: 3W07209, Issue 2 Applicant: Daniels Electronics Ltd. 43 Eire Street Victoria, BC V8V-1P8 Equipment Under Test: VT-4D150 VHF Transmitter Family (EUT) FCC ID: In Accordance With: FCC Part 22 FCC Part 90 Tested By: Nemko Canada Inc. 303 River Road, R.R. 5 Ottawa, Ontario K1V 1H2 Authorized By: Glen Westwell, Wireless Technologist Date: 26 August 2003 Total Number of Pages: 48 Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issue 2 EQUIPMENT:VT-4D150 VHF Transmitter Family Page 2 of 48 Table of Contents Section 1. Summary of Test Results ...................................................................................3 Section 2. General Equipment Specification......................................................................5 Section 3. RF Power Output ................................................................................................6 Section 4. Audio Frequency Response ................................................................................7 Section 5. Occupied Bandwidth ..........................................................................................9 Section 6. Spurious Emissions at Antenna Terminals ....................................................24 Section 7. Field Strength of Spurious Emissions .............................................................33 Section 8. Frequency Stability............................................................................................37 Section 9. Transient Frequency Behaviour .......................................................................39 Section 10. Block Diagrams ..................................................................................................44 Section 11. Test Equipment List ..........................................................................................48 Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issue 2 EQUIPMENT:VT-4D150 VHF Transmitter Family Page 3 of 48 Section 1. Summary of Test Results General All measurements are traceable to national standards. These tests were conducted on a sample of the equipment for the purpose of demonstrating compliance with FCC Part 22 and FCC Part 90. THIS TEST REPORT RELATES ONLY TO THE ITEM(S) TESTED. THE FOLLOWING DEVIATIONS FROM, ADDITIONS TO, OR EXCLUSIONS FROM THE TEST SPECIFICATIONS HAVE BEEN MADE. NONE See “ Summary of Test Data”. TESTED BY: ______________________________ DATE: 26 August 2003 Kevin Carr, EMC Specialist Nemko Canada Inc. authorizes the above named company to reproduce this report provided it is reproduced in its entirety and for use by the company’s employees only. Any use which a third party makes of this report, or any reliance on or decisions to be made based on it, are the responsibility of such third parties. Nemko Canada Inc. accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. This report applies only to the items tested. Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issue 2 EQUIPMENT:VT-4D150 VHF Transmitter Family Page 4 of 48 Summary Of Test Data Name Of Test Para. No. Result RF Power Output 2.1046 Complies Audio Frequency Response 2.1047 Complies Audio Low-Pass Filter Response 2.1047 Complies Modulation Limiting 2.1047 Complies Occupied Bandwidth 2.1049 Complies Spurious Emissions at Antenna Terminals 2.1051 Complies Field Strength of Spurious Emissions 2.1053 Complies Frequency Stability 2.1055 Complies Transient Frequency Behavior —— Complies Footnotes For N/A’s: Test Conditions: Indoor Temperature: 21°C Humidity: 47% Outdoor Temperature: 21°C Humidity: 95% . Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issue 2 EQUIPMENT:VT-4D150 VHF Transmitter Family Page 5 of 48 Section 2. General Equipment Specification Manufacturer: Daniels Electronics Ltd. Family No.: VT-4D150 Date Received In Laboratory: 28 July 2003 Nemko Identification No.: 1 & 2 Primary Power 13.8 VDC Emission Designator (Analog) 12.5kHz Ch. Spacing 11K0F3E 25kHz Ch. Spacing 16K0F3E Emission Designator (Digital) Voice: 12.5kHz Ch. Spacing 8K10F1E Data: 12.5 kHz Ch. Spacing 8K10F1D Power Output Variable: 0.5 - 8 Watts Channel Spacing 12.5/25 kHz Frequency Range VT-4D140 136 – 150 MHz VT-4D160 150 – 174 MHz Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issue 2 EQUIPMENT:VT-4D150 VHF Transmitter Family Page 6 of 48 Section 3. RF Power Output Para. No.: 2.1046 Test Performed By: Kevin Carr Date of Test: 29 July 2003 Minimum Standard: ± 1 dB Test Results: Complies Measurement Data: 39.4 dBm, 8.7 Watts Note: The EUT is variable from 0.5 – 8 Watts Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issue 2 EQUIPMENT:VT-4D150 VHF Transmitter Family Page 7 of 48 Section 4. Audio Frequency Response Para. No.: 2.1047 Test Performed By: Kevin Carr Date of Test: 30 July 2003 Minimum Standard: Not applicable. Test Results: Complies Measurement Data: See attached graph. Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issue 2 EQUIPMENT:VT-4D150 VHF Transmitter Family Page 8 of 48 Worst Case, 12.5 kHz Ch. Spacing Worst Case, 25kHz Ch. Spacing Audio Frequency Response -80 -60 -40 -20 0 20 100100010000 Frequency (Hz) Response (dB) Audio Frequency Response -100 -50 0 50 100100010000 Frequency (Hz) Response (dB) Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issue 2 EQUIPMENT:VT-4D150 VHF Transmitter Family Page 9 of 48 Section 5. Occupied Bandwidth Para. No.: 2.1049 Test Performed By: Kevin Carr Date of Test: 29 July 2003 Minimum Standard: Para. No.’s 90.210(b) 90.210(d) 22.359(a), (b)(1) & (b)(2) Test Results: Complies Measurement Data: See attached graphs. Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issue 2 EQUIPMENT:VT-4D150 VHF Transmitter Family Page 10 of 48 VT-4D140 Nemko Canada Inc. FCC PART 22 & FCC PART 90 PROJECT NO.:3W07209, Issu…

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OATS: Test Set-up Photo’s VT-4D140, UR-4D460, VT-4D160, UR-4D420