DANIELS TM ELECTRONICS LTD. MT-3 RADIO SYSTEMS PAGING MODULATOR INSTRUCTION MANUAL CI-PM-3 Covers models: CI-PM-3-00 Copyright © 2002 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 other wise, without the prior written consent of Daniels Electronics Ltd. DE™ is a registered trademark of Daniels Electronic Ltd.
Reviewed By: 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.
TABLE OF CONTENTS Page 1 GENERAL............................................................................................................................ 1-1 1.1 Introduction .......................................................................................................... 1-1 1.2 Construction ......................................................................................................... 1-2 1.3 Printed Circuit Board Numbering Convention.................................................
ALIGNMENT PROCEDURE AND INSTALLATION CONTINUED 3.13 Repeater Configuration......................................................................................... 3-8 3.13.1 Base Transmitter Site CI-PM-3 Configuration ............................................... 3-8 3.13.1.1 Digital-Only Paging.................................................................................. 3-8 3.13.1.2 Analog/Digital Paging............................................................................... 3-8 3.13.
LIST OF TABLES Page Data / Control Port (Connector J1) Pin Functions................................................ 4-1 Motherboard Interface Connector P1 Pin Functions............................................. 4-1 Delay Settings....................................................................................................... 4-3 CI-PM-3 Default Jumper Settings........................................................................ 4-4 CTCSS Jumper Settings..........................................
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1 1.1 GENERAL Introduction The CI-PM-3 Paging Modulator module is an optional plug-in component of the MT-3 Radio Repeater System. This module provides digital and/or analog paging capability for Daniels MT-3 transmitters in all supported frequency bands. The CI-PM-3 is designed for low power consumption, typically drawing less than 250 mA in steady state. In its standard configuration, the CI-PM-3 uses an on-board frequency reference source consisting of a 10 MHz OCXO with a standard stability of 0.
1.2 Construction The CI-PM-3 Paging Modulator is packaged in a compact Eurostandard shell module housing of nickel/steel with an anodized aluminum front panel. Corrosion resistant fasteners are used throughout the assembly. 1.3 Printed Circuit Board Numbering Convention To ease troubleshooting and maintenance procedures, Daniels Electronics Limited 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.
Frequency Stability: Standard: Optional: ±0.03ppm from -40°C to +60°C External High Stability ±0.002ppm from -40°C to +60°C (requires WWV or GPS reference source). Duty Cycle: Continuous, 100% from -40°C to +60°C Audio Response: 0 Hz to 3.4 kHz Maximum Deviation: +/- 50 PPM Analog / Digital PTT Activation: Front panel connector and rear motherboard connection Current Consumption: +13.8 VDC supply: +9.
1.4.2 CTCSS Decoder/Encoder (Option) Manufacturer: Communications Specialists Inc. Model Number: TS-64 Number of Tones: 64 Frequency Range of Tones: 33.0 to 254.
1.4.3 Physical Specifications Physical Dimensions: Width: 3.5 cm (1.38") Module Weight: 0.4 kg (1 lb.) Corrosion Prevention: Anodized aluminum construction with stainless steel hardware. Selectively applied Conformal coated glass epoxy 4 layer printed circuit boards. Gold plated module connectors. Module Design: Compact Eurostandard modular design. Plug-in module mates with Daniels standard 19" M3 repeater subrack. Interchangeable for test and repair.
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2 THEORY OF OPERATION DANIELS TM ELECTRONICS LTD CI-PM-3 Paging Modulator Instruction Manual 2-1
3 3.1 ALIGNMENT PROCEDURE AND INSTALLATION General The CI-PM-3 Paging Modulator is by default configured for stand-alone base station paging, using 2-Level paging data with a binary polarity of 1, and using the on-board +/-0.03 PPM 10 MHz OCXO. Table 4-4 contains a complete list of CI-PM-3 default jumper settings. The CI-PM-3 can also be configured for 4-level signal (base transmitter only) paging, remote paging, link repeater or higher stability operation.
3.4 Installation 1. Install the Daniels EC-96 Extender Card in either the far left-hand or the far right-hand slot of the subrack (as viewed from the front). Remove the side covers of the CI-PM-3 Paging Modulator and attach the 96-Pin Extender Cable between it and the Extender Card. 2. Apply +13.8 VDC power to the Subrack. Allow approximately 15 minutes for warm-up. 3.5 Alignment Refer to Figure 5-1 for the location of the CI-PM-3 module front panel controls. 1.
4. Monitor the Communications Test Set and adjust FREQ ADJ potentiometer R82 for the transmitter operating frequency +/-1 Hz. 5. Set the transmitter front panel NORM/KEY TX switch to NORM and replace JU6-A. 3.7 Reference (Analog Paging) Adjustment CI-PM-3 Reference frequency adjustment is factory set. It is strongly recommended that they not be altered. The following procedure applies only if field adjustment is required. 1. Ensure shunt jumper JU6-A is installed. 2.
5. Set SW3 (SET MOD) to 2 LEVEL, and SW4 (SET DEV) to the Data “1” (top) position. For a VHF system adjust R5 (2-LVL +Dev) for +4.8 kHz deviation (4.8 kHz above center frequency). For a UHF system adjust R5 for +4.2 kHz deviation. 6. Change SW4 (SET DEV) to the Data “0” (bottom) position. For a VHF system adjust R6 (2-LVL -Dev) for -4.8 kHz deviation (4.8 kHz below center frequency). For a UHF system adjust R6 for –4.2 kHz deviation. 7. Set shunt jumper JU23-B. 8. Change SW3 (SET MOD) to 4 LEVEL.
Steps 8 and 9 apply to Daniels UHF transmitters. 8. Monitor TP12 with an oscilloscope. 9. Adjust the PLL CAL potentiometer R101 until the voltage measured at TP12 is over 2.7 volts. You should observe a clean DC voltage when the PLL locks in. Any voltage below 2.7 volts results in a badly distorted 10 MHz square wave. 10. Replace shunt jumper JU6-A. 3.11 Data Delay Setup 1.
3.12 Simulcast Delay Setup A typical Simulcast system is depicted in Figure 5-2. To correctly determine the differing propagation path delays to each transmitter in a Simulcast system and compensate for them, signal delays in both the transmission medium and the equipment must be known. For the purposes of this manual, it is assumed that only Daniels MT-3 radio equipment will be utilized at each paging site, and that each radio subrack will be identically configured with CI-PM-3 Paging Modulator modules.
The delay calculations for any paging transmitter site in a multiple-transmitter system, with distances measured from the site of interest back to the BASE TX, becomes: Delay(Site of Interest) = (d(Furthest Site) (km) - d(Site of Interest) (km)) × 3.33µsec or = (d(Furthest Site) (mi) - d(Site of Interest) (mi)) × 5.
3.13 Repeater Configuration The CI-PM-3 modules at both the base transmitter and paging/repeater must be configured individually. Individual setup procedures must also be followed for analog/digital paging and for digital-only paging. Note: The CI-PM-3 modules must be set for 2-level signal operation only when configured for use in a paging repeater system. 3.13.1 Base Transmitter Site CI-PM-3 Configuration The setup instructions of sections 3.13.1 through 3.13.
3.13.2.1 Digital-Only Repeater 1. Install shunt jumpers JU41-C and JU23-A, JU23-B or JU23-C. 2. Install surface mount jumpers JU7-B, JU8-B, JU10-A, JU19/JU45, JU20/JU21, JU22, JU29/JU43, and JU55. 3. Remove surface mount jumpers JU34, JU51, JU52, JU53 and JU54. 3.13.2.2 Analog/Digital Repeater Ensure the TS-64 CTCSS Module, MOD1, is installed. Refer to section 3.13.3 for TS-64 CTCSS Module Configuration and settings for jumpers JU52, JU53 and JU54. 1.
3. To place the TS-64 in monitor mode (i.e. over-ride the decoder and unmute the receiver audio for channel monitoring): a) Ensure TS-64 jumper JP11 is removed. b) Ensure the TS-64 Hang-up Input is floating or above ground potential: i) Remove jumpers JU52 and JU53, or ii) Remove jumper JU52, install jumper JU53, and leave CTCSS HU/BUSY input J1 Pin 11 floating. 4. To disable paging transmission while the channel is busy: a) Install TS-64 jumper JP11.
4 4.1 CONNECTOR PIN FUNCTIONS AND JUMPER FUNCTIONS Data / Control Port (Connector J1) Pin Functions Table 4-1 PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 4.2 Data / Control Port (Connector J1) Pin Functions NAME 2-Lvl Data 4-Lvl Data Ext Clock 2-Lvl/4-Lvl Select A/D Mode Select Discr O/P PTT Ground Balanced Audio I/P 1 Balanced Audio I/P 2 Data Out HU/Busy No Connection No Connection No Connection FUNCTION 2 Level RS-232 Data input. 4 Level RS-232 Data input.
PIN C9 B9 A9 C10 B10 A10 C11 B11 A11 C12 B12 A12 C13 B13 A13 C14 B14 A14 C15 B15 A15 C16 B16 A16 C17 B17 A17 C18 B18 A18 C19 B19 A19 C20 B20 A20 C21 B21 A21 C22 B22 A22 C23 B23 A23 C24 B24 A24 C25 B25 A25 C26 B26 A26 DANIELS NAME ALARM 4 TX A STANDBY TX B STANDBY RX A SQL OVERRIDE RX A DISC O/P TX A PTT OUT ALARM 5 SPARE 5 SPARE 6 RX A SQL FLAT RX A ISO COR A RX A ISO COR K ALARM 6 RX A DISC L/P O/P RX B DISC L/P O/P RX B SQL DE-EMP SPARE 3 SPARE 4 ALARM 7 RX A SIG STREN RX B SIG STREN TX B BAL I/P 1 TX B
PIN C27 B27 A27 C28 B28 A28 C29 B29 A29 C30 B30 A30 C31 B31 4.3 NAME TX B CSEL D1 TX B CSEL D2 TX B CSEL D3 RX B DISC O/P RX B ISO COR K RX B ISO COR A RX B CSEL D0 RX B CSEL D1 RX B CSEL D2 RX B BAL O/P 1 RX B BAL O/P 2 RX B SQL FLAT RX B CSEL D3 RX A PRIORITY COR FUNCTION TX B Channel Select Line No. D1 TX B Channel Select Line No. D2 TX B Channel Select Line No.
4.4 CI-PM-3 Circuit Board Jumpers Table 4-4 REF. DESIG.
REF. DESIG. JU51 JU52 JU53 JU54 JU55 JU56 JU57 JU58 JU59 JU60 4.5 REF. DESIG. JP1-JP6 JP7 JP8-JP10 JP11 CTCSS Jumper Settings DEFAULT DESCRIPTION POSITION CTCSS Tone Frequency Select * RX Audio Mute Polarity (Installed: Mute = Open, Not Installed: Mute = Ground) Installed TX Time-Out-Timer Interval Select * Hang-Up/Busy-Input Configure (Installed = Busy-Input, Not Installed = Hang-Up Input) Not Installed Refer to TS-64 Instruction Sheet for configuration details.
4.8 Transmitter Audio Processor Jumper Settings Figure 4-1 JU35 JU38 Transmitter Audio Processor V1.6 Jumper Settings JU1 JU11 JU9 JU15 JU34 JU6 100nF JU28 JU8 JU27 CIPM3M6A Table 4-7 Transmitter Audio Processor V1.6 Jumper Settings JUMPER JU1 JU6 (VHF) JU6 (UHF) JU8 JU9 JU11 JU10 POSITION Y Replaced with 100nF Short Short Open Open Short POSITION Open Y Y Y Y Y All other jumper settings as per the factory defaults. Note: Figure 4-2 Transmitter Audio Processor V1.
JU11 JU12 JU13 JU14 JU15 JU16 JU17 JU18 JU19 JU20 JU21 JU22 JU23 JU24 JU25 JU26 JU27 JU28 JU29 JU30 JU31 JU32 JU33 JU34 JU35 JU36 JU37 JU38 JU39 JU40 JU41 JU42 JU43 Y OUT OUT OUT OUT OUT OUT OUT X Y Y X OUT OUT OUT OUT Y Y OUT OUT OUT OUT OUT Y OUT Y OUT OUT OUT OUT OUT OUT OUT / IN OUT OUT / IN IN / OUT OUT OUT X Y Y X OUT / IN OUT OUT OUT Y Y OUT OUT OUT OUT OUT Y OUT OUT OUT OUT / X OUT OUT OUT OUT OUT OUT DANIELS Balanced Input To Auxiliary Audio Circuit Enable Tone/Digital Input To Auxiliary Audi
Figure 4-3 Transmitter Audio Processor V2.3 Jumper Settings JU27 X JU25 Y X JU43 JU20 Y JU8 X JU35 JU8 JU34 X JU42 Y CIPM3M8A Table 4-9 JUMPER JU8 JU20 JU21 JU25 JU27 JU34 JU42 JU43 DANIELS Transmitter Audio Processor V2.
4.9 Transmitter Synthesizer Jumper Settings Figure 4-3 VHF and (400 MHz) UHF Synthesizer Analog PCB Jumper Settings Top View Of PCB A B JU1 CIPM3M8 Jumper JU1 must be installed in the ‘A’ position to enable the external reference option. Figure 4-4 VHF and (400 MHz) UHF Synthesizer Digital PCB Jumper Settings Bottom View of PCB JU2 CIPM3M10 Jumper JU2 must be installed to enable the 10MHz reference option.
4.10 CI-PM-3 Test Points Table 4-10 TEST POINT TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 TP13 TP14 TP15 TP16 TP17 DANIELS CI-PM-3 Test Points DESCRIPTION +8 Vdc Supply +4 Vdc Supply +5 Vdc Supply Analog / Digital Mode (High = Digital, Low = Analog) 2 Level Data (TTL) OCXO 9.5 Vdc Supply Positive and Negative Edge Integrator Output Data Delay Programmable Counter Output. Input to Data Delay Circuitry 2 Level Data Level Adjusted Paging Signal OCXO Reference Adjust (nominally 2.
5 5.
6 6.
7 REVISION HISTORY Issue Issued Revised Details 3 Nov 99 N/A All prototype updates incorporated in this issue. All previous revision history in preliminary issue 3 (Pre3). Jan 02 4 Jan 02 New Issue, incorporates all changes since release of Issue 3. 4A Dec 02 DANIELS New CI-PM-3 version to accommodate multiple footprints for U4 ( AD9901 ) , and incorporate changes to the reference input circuit ( MMIC removed ).
DANIELS TM ELECTRONICS LTD. MT-3 RADIO SYSTEMS UHF SYNTHESIZED TRANSMITTER INSTRUCTION MANUAL UT-3/400 406 - 512 MHz Covers models: UT-3/420-SNC2, UT-3/420-SWC2, UT-3/420-SNC8, UT-3/420-SWC8, UT-3/460-SNC2, UT-3/460-SWC2, UT-3/460-SNC8, UT-3/460-SWC8, UT-3/480-SNC2, UT-3/480-SWC2, UT-3/480-SNC8, UT-3/480-SWC8, UT-3/500-SNC2, UT-3/500-SWC2, UT-3/500-SNC8, UT-3/500-SWC8, Copyright © 1998 Daniels Electronics Ltd. All rights reserved.
Reviewed By: Quality Assurance: Larry Freeman Name Signature _________________ Date 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.
TABLE OF CONTENTS Page 1 GENERAL..................................................................................................................1-1 1.1 Introduction.....................................................................................................1-1 1.2 Manual Organization.......................................................................................1-1 1.3 UT-3 406 - 512 MHz Transmitter Family Models..........................................1-2 1.4 Performance Specifications..
1 GENERAL 1.1 Introduction The UT-3 406 - 512 MHz Transmitter is a synthesized FM transmitter capable of operating in 12.5 kHz or 25 kHz channels. The transmitter operates continuous duty in one of four frequency bands: 406 to 430 MHz, 450 to 470 MHz, 470 to 490 MHz or 490 to 512 MHz and its output power is continuously adjustable from 0.5 T0 2.0 or 2.0 to 8.0 Watts. The transmitter is not to be operated within the 406 to 406.
UHF Amplifier Instruction Manual UT-3 406 - 512 MHz : The amplifier module provides the final stages of RF power amplification and harmonic filtering for the transmitter. This manual is intended primarily as a reference since the amplifier module is adjusted at the factory. Enhanced Synthesizer Instruction Manual OS(R/T)-3(A/H) 132 - 470 MHz: This manual pertains to the enhanced synthesizer module.
1.4 Performance Specifications 1.4.1 General The following is a general set of specifications for the generic UT-3/400 transmitter. Additional specifications, specific to individual modules may be found in their respective submanuals. Type: MT-3 Series Transmitter. Family: UT-3 406 - 512 MHz. Compatibility: MT-2 Series and MT-3 Series Radio Systems. Frequency Range: 406 to 512 MHz (406 to 406.1 MHz unavailable, see note below). RF Power Output: Continuously Adjustable: 0.5 to 2.0 W or 2.0 to 8.
PTT Time-Out-Timer: Selectable from 1 sec. to 8 hrs. (factory set 5 min.). Reference Frequency: 9.600000 MHz. Channel Spacing: 12.5 kHz or 25 kHz. Frequency Stability: Standard: ±1 ppm, -40°C to +60°C. Optional: high stability external reference provided through front panel connection. Channel Selection: In 12.5 kHz increments selected through four internal BCD rotary switches. Preset capability for 16 channel memory selectable through external control.
Subtone Audio Input 2: 0.5 Vpp at 100 Hz for ±500 Hz deviation (internally adjustable). Subtone Audio Input 2 Freq range: DC to 150 Hz. Direct Modulation Input: 0.5 Vrms at 1 kHz or ±3 kHz deviation. Direct Modulation Freq range: DC to 5 kHz. Audio Distortion: Less than 2.5% THD; 1 kHz tone at 1.5 kHz or 3 kHz deviation (-40°C to +60°C). Hum and Noise: Better than 40 dB (test receiver band limited: 400 Hz to 30 kHz). 1.4.3 Physical Specifications Physical Dimensions: Width: Height: Depth: 7.
2 SYSTEM OVERVIEW 2.
3 ILLUSTRATIONS 3.
4 PARTS LIST DANIELS DE ELECTRONICS UHF Transmitter Instruction Manual UT-3 406 - 512 MHz 4-1
5 REVISION HISTORY ISSUE DATE DESCRIPTION AND (REASON) 3 August 98 • Manual formatted to modular style. All previous revision history in issue 2 4 December 98 • Added an advisory to our customers in section 1.1 and 1.4.1 that this transmitter is not to be operated within the 406 to 406.1 MHz frequency band.
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DANIELS TM ELECTRONICS LTD. MT-3 RADIO SYSTEMS TRANSMITTER MAIN BOARD INSTRUCTION MANUAL Covers: Version 1.7 of the Transmitter Main Board Version 1.6 & 1.8 of the FM Audio Processor Board Copyright © 1998 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.
Reviewed By: Quality Assurance: Larry Freeman Name Signature _________________ Date 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.
TABLE OF CONTENTS Page 1 GENERAL .................................................................................................................. 1-1 1.1 Introduction.................................................................................................... 1-1 1.2 Performance Specifications............................................................................ 1-1 1.2.1 General............................................................................................... 1-1 1.2.
2.4.1 General............................................................................................... 2-12 2.4.2 Power Requirements .......................................................................... 2-12 2.4.3 Audio Processor Turn-on Time.......................................................... 2-13 2.4.4 Audio Processor Signals.................................................................... 2-13 2.4.4.1 Audio Processor Outputs.......................................................
5.2.1 Transmitter Main Board Top Side Component Layout ...................... 5-3 5.2.2 Transmitter Main Board Bottom Side Component Layout................. 5-4 5.2.3 Transmitter Main Board Schematic Diagram ..................................... 5-5 5.3 Front Panel Board.......................................................................................... 5-6 5.3.1 Front Panel Board Component Layout............................................... 5-6 5.3.2 Front Panel Board Schematic.....................
1 GENERAL 1.1 Introduction The MT-3 Transmitter Main Board integrates the MT-3 Front Panel Board, MT-3 Audio Processor, Synthesizer or Crystal Controlled Oscillator module, and Amplifier module together to comprise a MT-3 series transmitter (see section 5.1: MT-3 Transmitter Block Diagram).
1.2.2 Audio Specifications Audio Input: Balanced 600 ohm or unbalanced (optional). Input level sensitivity, -25 dBm to 0 dBm. Audio Response: Pre-emphasis (6 dB per octave); +0.5 to -2.0 dB from 300 Hz to 3 kHz; Flat Audio Response: +1 to -1 dB from 100 Hz to 3 kHz. Audio Deviation: Preset to ±1.5 kHz (Narrow Band) or ±3.0 kHz (Wide Band) with a 1 kHz tone (capable ±2.5 kHz or ±5.0 kHz). Subtone Audio Input 1: 0.5 Vpp at 200 Hz for ±500 Hz deviation (internally adjustable).
2 THEORY OF OPERATION 2.1 Transmitter Main Board 2.1.
3 TRANSMITTER ALIGNMENT 3.1 General Transmitter alignment is simplified by using an M-3 Subrack, SM-3 System Monitor, and RF extender cable to provide transmitter power and signal interconnection. Alternatively, +9.5 Vdc and +13.8 Vdc may be applied directly to a transmitter module through positive connection for the +9.5 Vdc to pins B6 and Z6, for the +13.8 Vdc to pins B2 and Z2, and negative connection to pins B30, Z30, B32, and Z32. Transmitter balanced audio (600 Ω) is available at pins B18 and Z18.
Radio communications test set : Marconi Instruments 2955R VSWR 3:1 mismatch load: JFW 50T-035-3.0:1 Alignment Tool: Johanson 4192 It is recommended that the radio communications test set be frequency locked to an external reference (WWVH, GPS, Loran C) so that the high stability oscillator may be accurately set to within its ±1 ppm frequency tolerance. 3.
• Jumper J26: • Jumper J27: • Jumper J28: • Jumper J29: • Jumper J31: • Jumper J32: • Jumper J33: • Jumper J34: • Jumper J35: installed not installed not installed installed installed not installed installed installed installed Time-Out-Timer Timing resistor select. Time-Out-Timer Timing resistor select. Time-Out-Timer Timing period output select. Time-Out-Timer Timing period output select. Time-Out-Timer Timing period output select. Time-Out-Timer Timing period output select.
• Jumper JU11: not installed • Jumper JU12: not installed • Jumper JU13: not installed • Jumper JU14: not installed • Jumper JU15: not installed • Jumper JU16: not installed • Jumper JU17: installed • Jumper JU18: not installed • Jumper JU19: 'y'position • Jumper JU20 to JU22: • Jumper JU23: not installed • Jumper JU24: installed • Jumper JU25: installed • Jumper JU26: installed • Jumper JU27: not installed • Jumper JU28: not installed • Jumper JU29: not installed • Jumper JU30: not installed • Jumper JU31:
3.6.2 MT-3 Transmitter Board Test Points TP1: squelched, de-emphasized audio / +13.8 Vdc TP2: microphone audio TP3: microphone PTT WTO; inactive +9.5 Vdc, active 0 Vdc TP4: microphone PTT NTO; inactive +9.5 Vdc, active 0 Vdc TP5: +9.5 Vdc from backplane connector TP6: +9.5 Vdc from front panel board TP7: +9.5 Vdc Switched TP8: Qualified PTT; inactive +9.
To remove the Enhanced Synthesizer or Crystal Controlled Oscillator module, simply remove the center screw from the module lid and pull the module out. The module should be pulled straight out so that the four alignment pins do not bend or damage the circuitboard. The Low Power Synthesizer uses two tabs soldered to the Transmitter Main Board for mounting. No alignment pins are used. As a result care must be taken to ensure the connector pins on the bottom of the Synthesizer are not bent.
4 Turn the transmitter on. 5 Adjust the balance compression level (R38) for compression at ±60% maximum deviation. 6 Set the audio frequency to 2.4 kHz, then adjust the deviation control (R29) for maximum deviation. 7 Reset the modulating frequency to 1 kHz and re-adjust R38 for ±60% maximum deviation. 8 Repeat steps 6 and 7 until both conditions are met. 9 Vary the audio signal from 1 kHz to 3 kHz and measure the positive deviation and then the negative deviation.
17 Apply a 1 kHz tone at -8 dBm to the microphone audio input. Set the microphone compression control (R8) to produce ±60% maximum deviation. Reduce the signal to -10 dBm and adjust the microphone input level control (R2) for ±50% maximum deviation. Remove the signal. 18. Apply a 100 Hz tone at -18 dBm to the subtone 1 input and adjust the subtone 1 level control (R42) to produce ±500 Hz deviation. Remove the signal. 3.
• Jumper JU10: • Jumper JU11: • Jumper JU12: • Jumper JU13: • Jumper JU14: • Jumper JU15: • Jumper JU16: • Jumper JU17: • Jumper JU18: • Jumper JU19: • Jumper JU20: • Jumper JU21: • Jumper JU22: • Jumper JU23: • Jumper JU24: • Jumper JU25: • Jumper JU26: • Jumper JU27: • Jumper JU28: • Jumper JU29: • Jumper JU30: • Jumper JU31: • Jumper JU32: • Jumper JU33: • Jumper JU34: • Jumper JU35: • Jumper JU36: • Jumper JU37: • Jumper JU38: • Jumper JU39: • Jumper JU40: • Jumper JU41: • Jumper JU42: • Jumper JU43: n
3.10 MT-3 Audio Processor Alignment (Version 1.8) 3.10.1General Verify the standard factory settings for the MT-3 Audio Processor as given in section 3.9.1 before beginning the standard deviation adjustment procedure. If the transmitter's channel frequency changes, the audio processor should be realigned to optimize the transmitter's performance. The schematic diagram for the audio processor is shown in section 5.5.2 and the component layout is shown in section 5.5.1. 3.10.
10 Adjust the balanced input level control (R31) so that the deviation increases until compression is observed. The deviation should be ±1.5 kHz or ±3 kHz for narrowband and wideband channels respectively. 11 Increase the input level (R31) by +20 dBm, it should not increase the deviation more than maximum. This confirms that the AGC action of preamplifier U1 is working. 12 A 2.4 kHz tone at the desired audio input level should produce the maximum deviation.
MT-3 Transmitter (board version 43-920910 through 43-920911) • J6 installed (synthesizer always powered up by +9.5V SWITCHED line). • J7 installed in 'X' position (audio processor always powered up by +9.5VSWITCHED line). • solder a wire from JA4-2 of main board to J51-18 of synthesizer. This connects the subtone output 2 to the synthesizer's phase modulation input. MT-3 Transmitter (board version 43-920912 through 43-920913) • J6 installed (synthesizer always powered up by +9.5V SWITCHED line).
input to the transmitter to be used to gain access to the SUBTONE INPUT 2 which connects to the PHASE MOD IN input of a modified synthesizer. • Make sure J13 and J16 are not installed. Figure 3-1 Transmitter Audio Processor Low Frequency Modulation.
3.11.4Tuning the Transmitter For all MT-3 transmitters, apply a low impedance source of 20-300 Hz to the Direct Modulation input of the transmitter (Pin Z28 of the 48 pin connector) through a 22 uF capacitor, positive terminal connected to pin Z28. A Marconi 2955 works well for this test. Adjust R44 on the audio processor to the fully clockwise position. • Apply a 100 Hz tone at -8 dBm to the Direct Modulation input of the transmitter (Pin Z28 of the 48 pin connector, and key the transmitter.
4 TRANSMITTER INTERCONNECT PIN DEFINITIONS The MT-3 series Transmitter employs a 48 pin Eurostandard connector for interfacing to all transmitter power, audio, and control functions. The following are the MT-3 series Transmitter backplane connections to the M-3 Motherboard.
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5 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS 5.1 Transmitter Block Diagram DANIELS TM ELECTRONICS LTD.
6 PARTS LISTS 6.
7 REVISION HISTORY ISSUE DATE REVISION 1 August 97 First Issue. Sept. 97 Included PCB version 1.4 Component Layout and Schematic diagrams. Dec 97 Main PCB version now 1.7 (ECO 515). • BCD Switches changed from Surface Mount Part to Through Hole Part. • Audio Amplifier was removed because this option was never used. • Added Timer Out Timer circuitry to Main Tx Board. • TOT PCB no longer installed on Audio Processor. For A21-TX3-00 TX MAIN/FP, MT-3, STANDARD A21-TX3-30 TX MAIN/FP, MT-3, + REF.
ISSUE DATE REVISION 3 Updated the DE logo and added the statuary trademark statement to the title page. Updated the Low Frequency Modulation section 3.11 to reflect the in house document A0361-06.
MT-3 RADIO SYSTEMS Audio Processor Instruction Manual For AM/FM Transmitters Covers the following V 2.2 and V2.3 of the FM Audio Processor Board used in the VT-3/xxx, UT-3/xxx, VT-3Hxxx and A22-VAP130 AM Audio Processor Version 04 Copyright © 2000 Daniels Electronics Ltd. All rights reserved.
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.
TABLE OF CONTENTS Page 1 FM AUDIO PROCESSOR .............................................................................................1-1 1.1 Introduction ..........................................................................................................1-1 1.2 Block Diagram (FM Audio Processor).................................................................1-3 1.3 FM Audio Processor Board Pin Connections.......................................................1-4 1.4 Factory Configuration.......
9.4 9.5 9.6 9.7 9.8 9.9 9.10 9.11 9.12 10 Audio Circuits.......................................................................................................9-6 Power Requirements .............................................................................................9-6 Transmitter Standby Modes..................................................................................9-6 Audio Circuitry.....................................................................................................
1 FM AUDIO PROCESSOR 1.1 Introduction The MT-3 FM Audio Processor is a versatile circuit board that can provide several types of audio processing for voice or data transmission. The following terms are defined: Table 1 Bandwidth Definition Term Channel Spacing Rated System Deviation Wideband 25 kHz or 30 kHz ±5.00 kHz Narrowband 12.5 kHz or 15 kHz ±2.50 kHz LTR™ is a trademark of E.F. Johnson Co.
A continuous +9.5 VDC supply and a switched +8.0 VDC supply are required to power the module which is normally supplied by the Main Transmitter Board. The 6 audio inputs on the FM Audio Processor are: • • • • • DYNAMIC MICROPHONE INPUT 600 OHM BALANCED INPUT subtone inputs auxiliary input. direct modulation input for data signals. The Audio Processor's balanced input pins are isolated by a transformer (T1) on the Transmitter Main Board.
1.
1.3 FM Audio Processor Board Pin Connections P3 P4 P2 P1 Surface Mount Side PCB 4 2 4 2 4 2 4 2 3 1 3 1 3 1 3 1 END VIEW +9.5V Mic Input +8V -10 dBm Subtone Input 1 Voice And Subtone Output Balanced Input -18 dBm Low Frequency Direct Mod Output 0 dBm -8 dBm Figure 2 Pin Connection Diagram 1.4 Factory Configuration The MT-3 FM Audio Processor is factory configured as follows: Table 2 Parameter Specification Maximum Deviation ±2.5 kHz (Narrowband), ±5.0 kHz (Wideband).
1.5 Turn-on Time This measurement is made with the standard factory settings with a 1 kHz tone applied to the balanced input. The turn-on time is the time it takes the FM Audio Processor to output a stable audio signal to P3-1 from the time its power (+8.0 VDC) is switched on. The turn-on time can be virtually eliminated by configuring the FM Audio Processor for continuous audio standby (see section 1.7 Transmitter Standby Modes).
Notes: If FM Audio Processor JU36 is not installed, both microphone and balanced audio compression amplifiers will be disabled. This means that the front panel microphone jack will be disabled for local microphone operations. When in this condition, balanced audio is routed around the compression circuitry via JU11 (installed) with JU1 and JU2 removed.
2 SIGNALS The MT-3 FM Audio Processor has six audio inputs, two audio outputs and one audio control input. Five of the audio inputs are used primarily for voice and tone signals. The sixth, the Direct modulation input, is used primarily for data signals. The audio control input is used to switch audio outputs so the transmitter can transmit voice or data. 2.
using the lower input levels) Like the microphone input, the balance input is limited and filtered and is output at the standard modulation output port. If no compression is required (i.e.: customer is providing their own), JU11 can be enabled providing a path through R48 (Auxiliary Input Level Control) to amplifier U2C where preemphasis or flat audio can then be selected from its output. 2.6 Auxiliary Input The auxiliary input is a special input and does not have an ALC.
3 THEORY OF OPERATION Audio Processor Board Instruction Manual 3-1
4 ALIGNMENT Verify the standard factory settings for the MT-3 FM Audio Processor as given in section 1 before beginning the standard deviation adjustment procedure. If the transmitter's operating frequency is changed beyond the factory recommended bandwidth or if the synthesizer is changed, the FM Audio Processor should be realigned to optimize the transmitter's performance. The schematic diagram for the FM Audio Processor is shown in section 7-2 of this manual. The settings tolerance is +/- 0.1 kHz. 4.
4.4 Subtone Input Setup • Apply a 100 Hz tone at -18 dBm to the subtone 1 input . • Adjust R42 (SUBTONE INPUT 1) to produce: • ±500 Hz(Wideband) or ±350 Hz(Narrowband) deviation. • Remove the signal. 4.5 Balanced Input Frequency Response • Apply a 1 kHz tone at –18 dBm to the BALANCED INPUT (Transmitter Main Board edge connector pins B18, Z18). • Record deviation and use this level as the 0 dB reference. • Sweep frequency from 100 Hz to 5 kHz.
5 TROUBLESHOOTING - TEST EQUIPMENT NEEDED 1 2 3 4 Variable Power supply/supplies to supply 9.6V and 8.0V at the same time. Digital Voltmeter to measure RMS AC Volts, DC Volts, DC Current and resistance. 20 MHz Oscilloscope, single channel. Audio Signal Generator (600 Ohm Output Impedance) capable of frrequencies from 67 Hz to 5000 Hz. Power Supply • Connect a regulated power supply with +9.5V as follows: Positive to P2-4 Negative to P1-4 (Ground) • Connect a regulated power supply with +8.
5.3 Subtone Input Test Change Audio Generator frequency to 100 Hz and maintain level at –18 dBm (98 mV RMS). Connect output to Subtone Input 1 (P2-2) and ground (P1-4). Refer to Table 8 Waveform Levels, for levels and waveforms that should be present. 5.4 Audio benchmarks Set the audio generator to 2.4 kHz @ 0 dBm at the Balanced Input. Compare the waveform levels with those listed in table below. Repeat for the various audio frequencies and levels and compare with the levels in the table below.
6 TEMPERATURE COMPENSATION The FM Audio Processor includes temperature compensation circuitry to maintain constant transmitter audio deviation with a fixed level input signal. It is capable of not only compensating for temperature related level variations within the FM Audio Processor (typically –0.3 to –0.5 dB at –40C) but can also compensate for changes caused by the synthesizer or crystal oscillator module that is not equipped with its own temperature compensation.
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7 ILLUSTRATIONS, TABLES AND SCHEMATIC DIAGRAMS 7.1 Special Jumper Configuration Table DANIELS ELECTRONICS LTD.
8 FM AUDIO PROCESSOR PARTS LIST Audio Processor Board Instruction Manual 8-1
9 AM AUDIO PROCESSOR 9.1 Introduction The MT-3 AM Transmitter Main Board integrates the MT-3 Front Panel Board, MT-3 AM Audio Processor, Synthesizer or Crystal Control module and Amplifier module together to make a working MT-3 AM series transmitter. The Front Panel Board and the Audio Processor are soldered directly to the Transmitter Main Board while the Amplifier and the Synthesizer or Crystal Control module are frequency band sensitive, plug-in modules.
9.3 Audio Specifications Audio Input: Audio Response: Audio Distortion: 9.4 -30 to 0 dBm into a 600Ω balanced load. Flat audio; +1/-3 dB: 300 Hz - 3 kHz Less than 3% -40˚C to +60˚C at 30% modulation, Less than 5% -40˚C to +60˚C at 90% modulation Audio Circuits All of the audio signal conditioning (e.g. limiting, filtering) is performed by the MT-3 AM Audio Processor. The transmitter board routes the audio lines from the backplane connector to the audio processor.
The actual current and start-up time may depend on the frequncy controlled source (crystal or synthesizer) and amplifier module. The current and start-up times given below are representative values intended only as a guideline.
9.8 AM Audio Processor Factory Configuration The MT-3 AM Transmitter Audio Processor is factory configured as follows: • Microphone Input: modulations. • Audio Balanced Input: modulations. • Automatic Modulation Control • Automatic Level Control 1kHz tone at -10 dBm gives 50% maximum 1 kHz tone at -8 dBm gives 90% maximum enabled enabled The corresponding jumper settings are: • • • • • • • • • 9.
10 Apply a 1 kHz, -8 dBm input signal, the modulation should be 90%, observe that the distortion of the transmitted signal is within 5.0%. 11 Slowly increase the input audio signal level to 5 dBm and observe that the modulation does not go over 100%. This step verifies the correct operation of the ALC . 12 Change 13.8Vdc power supply to 10V and then to 17V, the modulation of the output RF signal should remain at the same level of 90% ±7% and distortion should be less then 3%.
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10 REVISION HISTORY ISSUE DATE REVISION 1 2 First Issue. Second Issue Incorporated the AM Audio Processor documentation into this manual.
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DANIELS ELECTRONICS LTD. ® MT-3 RADIO SYSTEMS UHF AMPLIFIER INSTRUCTION MANUAL UT-3 406 - 512 MHz Covers models: UT-3/400 Amplifier Copyright © 1998 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. Issue: 1 Issue Date: Printing Date: Part No.
Reviewed By: Quality Assurance: Name Signature _________________ Date 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.
TABLE OF CONTENTS Page 1 GENERAL.................................................................................................................... 1-1 1.1 Introduction....................................................................................................... 1-1 1.2 Performance Specification................................................................................. 1-1 2 THEORY OF OPERATION ........................................................................................ 2-1 2.
5 PARTS LISTS.............................................................................................................. 5-1 5.1 UT-3/400 UHF Amplifier Electrical Parts List.................................................. 5-1 5.2 UT-3/400 UHF Amplifier Mechanical Parts List.............................................. 5-4 5.3 UT-3/400 UHF Low Pass Filter Electrical Parts List........................................ 5-4 6 REVISION HISTORY .............................................................
1 GENERAL 1.1 Introduction The UT-3/400 Amplifier provides the final stage of RF amplification and filtering for the entire UHF Transmitter UT-3 406 -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.
Harmonic Emissions: Less than -80 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. Transmit Current: 0.
2 THEORY OF OPERATION 2.
3 UT-3/400 AMPLIFIER ALIGNMENT 3.1 General Connections to the power supply, alarm and transmit enable lines (ENA), are clearly marked on the amplifier case. The amplifier is enabled when the enable line (ENA) is grounded. If the amplifier is installed in the transmitter, alignment is simplified by using an SR-3 Subrack, SM-3 System Monitor, and RF extender cable to provide transmitter power and signal interconnection (see the Transmitter Main Board Manual for details).
It is recommended that the radio communications test set be frequency locked to an external reference (WWVH, GPS, Loran C) so that the high stability oscillator may be accurately set to within its ±1 ppm frequency tolerance. 3.4 Printed Circuitboard Numbering Convention To ease troubleshooting and maintenance procedures, Daniels Electronics Limited has adopted a printed circuitboard (PCB) numbering convention in which the last two digits of the circuitboard number represent the circuitboard version.
amplifier's output power level, alarm levels, and tuning for the transistor matching circuit in the high power version can be set without detaching the amplifier from the transmitter board. However, if the output power alarm or the Antenna VSWR alarm output configuration requires changing, the UT-3/400 Amplifier must be detached from the MT-3 Transmitter Board. Refer to section 4 page 2 "UT-3/400 Amplifier Component Layout" for the location of solder jumpers JU1 to JU5. 3.6.
3 Turn on the power to the transmitter. 4 For high power amplifier units, follow steps 5 to 7 below. For low power amplifiers, skip to the Output Power Alarm procedure. 5 Tune the output matching capacitor for maximum output power. This should be approximately 8 Watts. 6 For single frequency applications, tune the input matching capacitor so that +9.5 Vdc current is minimized without sacrificing output power.
4 Adjust R21, the output power alarm adjustment, so that the voltmeter indicates +7.5 Vdc for full transmitter output power. 5 Turn R7, the output power adjustment, fully counterclockwise. The voltmeter should read approximately +3 Vdc. 6 Disconnect the voltmeter. 3.6.2.3 1 Output Power Turn R7, the output power adjustment, clockwise to the desired transmitter output power. 3.6.2.
5 Put the 50 ohm load back on again. The voltmeter should read approximately 0 Vdc. 6 Disconnect the voltmeter. 3.6.2.5 Antenna VSWR Overload 1 Disconnect the radio communications test set and so that the amplifier is terminated with an open circuit. 2 Monitor the current from the +9.5 Vdc supply. 3 Adjust R38, the VSWR overload adjustment, clockwise until a noticeable drop in the +9.5 Vdc current occurs. 4 Reconnect the radio communications test set and, the +9.
4 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS This Page Intentionally Left Blank DANIELS DE ELECTRONICS UHF Amplifier Instruction Manual UT-3 406 - 512 MHz 4-1
5 PARTS LISTS 5.1 UT-3/400 UHF Amplifier Electrical Parts List NOTE: Reference Designators labeled with an asterisk (*) are used only in 2.0 - 8.0 Watts amplifiers.
6 REVISION HISTORY ISSUE DATE REVISION 1 First Issue.
MT-3 RADIO SYSTEMS ENHANCED AM/FM SYNTHESIZER INSTRUCTION MANUAL OS(R/T)-3(A/H) 29 - 470 MHz Covers models: OST-3H035, OST-3H045, OSR-3H061 OST-3A128, OSR-3A149 OST-3H141, OST-3H162, OSR-3H141, OSR-3H162 OST-3H440, OSR-3H440 Copyright © 2000 Daniels Electronics Ltd. All rights reserved.
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. The equipment covered by this manual may incorporate minor changes in detail from the information contained in this manual.
TABLE OF CONTENTS Page 1 GENERAL...................................................................................................................1-1 1.1 Introduction ....................................................................................................1-1 1.2 OS(R/T)-3(A/H) Enhanced Synthesizer Family Models ................................1-1 1.3 Performance Specifications.............................................................................1-3 1.
4 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS ..............................................4-1 4.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Diagrams ...................................4-1 4.1.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Component Layout (Bottom)4-1 4.1.2 OS(R/T)-3H 29 - 71.4 MHz Analog Board Component Layout (Top) 4-2 4.1.3 OS(R/T)-3H 29 - 71.4 MHz Analog Board Schematic Diagram........4-3 4.2 OS(R/T)-3A 118 - 159.4 MHz Analog Board Diagrams................................4-5 4.2.1 OS(R/T)-3A 118 - 159.
1. GENERAL This is hidden text. 1.1 Introduction The OS-3A/H Synthesizer is a compact, fully shielded and environmentally rugged frequency synthesis module that is the nucleus of every MT-3 synthesized Receiver and Transmitter radio module. The OS-3A/H generates a high stability, low distortion radio frequency signal in one of several frequency bands, including 29 - 50 MHz, 118 - 159.4 MHz, 118 - 174 MHz and 406 - 470 MHz. The OS-3A/H utilizes an internal temperature compensated 9.
Frequency Band: 118 - 159.4 MHz, AM Multichannel OS-3H1xx Analog Board • OST-3A128 • OSR-3A149 - installed in AM transmitter, 118 - 138 MHz RF output. - installed in AM receiver, 139.4 - 159.4 MHz RF output. Frequency Band: 128 - 174 MHz, Common OS-3H1xx Analog Board • OST-3H141 • OST-3H162 • OSR-3H141 • OSR-3H162 - installed in FM - installed in FM - installed in FM - installed in FM transmitter, 128 - 152.6 MHz RF output. transmitter, 150 - 174 MHz RF output. receiver, 128 - 152.6 MHz RF output.
1.3 Performance Specifications Type: Narrow band FM, Single loop synthesizer module utilizing low noise VCO and PLL technology. Compatible with Daniels MT-3 series Transmitter and Receiver modules. Frequency Range: 29 MHz - 38 MHz [±0.5 MHz] (OST-3H035) (Tuning range with no adjustment 38 MHz - 50 MHz [±1.0 MHz] (OST-3H045) is shown in [ ] brackets.) 50.4 MHz - 71.4 MHz [±1.0 MHz] (OSR-3H061) 118 MHz -138 MHz [Full band] (OST-3A128) 128 MHz - 152.6 MHz [±2.0 MHz] (OST-3H141, OSR-3H141) 139.
Modulation Sensitivity: 3.0 kHz peak deviation (400 mVrms input) External Reference Input: External reference input signal via SMB connector J1 Input level 0 dBm ±3 dB Input impedance 50Ω Input frequency 10.0 MHz or 9.6 MHz (selectable through digital board jumper JU1) Power Requirements: Normal Configuration: +9.5 Vdc @ 160 mA for FM and 65 mA for AM Low Current Standby Mode (TCXO enabled): +9.
Printed Circuit Board Numbering Convention 1.4 To expedite troubleshooting and maintenance procedures, 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 PCB number 43-912010 50002-02 indicates circuit board version 1.
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2. THEORY OF OPERATION This is hidden text. 2.
3. SYNTHESIZER ALIGNMENT This is hidden text. 3.1 General OS(R/T)-3(A/H) enhanced synthesizer alignment is simplified by using a Type 84 subrack and RF extender card/cable of providing receiver or transmitter power and signal interconnection. Alternately, +9.5 Vdc may be directly connected to a receiver or transmitter module with the positive connection on pins B6 / Z6 and the negative connection on pins B30 / Z30 / B32 / Z32. Receiver balanced audio (600 Ω) is available at pins B26 and Z26. 3.
The corresponding internal synthesizer jumper settings are: • • Digital Board Jumper JU2 not installed Jumper JU1 installed 9.6 MHz internal frequency reference selected AM Multichannel mode selected • • Analog Board Jumper JU1: 'B' position Jumper JU2 not installed Internal frequency reference selected Internal frequency reference selected 3.5 OS(R/T)-3(A/H) Synthesizer Alignment Invisible text 3.5.1 General Under normal circumstances (i.e.
3.5.3 Synthesizer Removal and Installation The synthesizer module is secured to the main board (MT-3 Receiver IF/Audio Board or MT-3 Transmitter Main board) with a single counter sunk Phillips machine screw accessible from the top cover. Remove this screw to remove the synthesizer module.
The measured RF output signal should be within ±1.0 ppm of the specified oscillator frequency at an output level of +5 dBm. Note that unlocked synthesizer operation will be indicated by an unstable or spurious RF output signal. The "Unlocked" red LED will also be illuminated when the PLL is unlocked. Check that the requested channel number is within the frequency range of the particular synthesizer model.
unlocked operation. The tuning range capability of all synthesizer models is listed in the Specifications section (1.3) of this manual. 3.5.5.2 VHF OS(R/T)-3A 118 - 159.4 MHz Alignment Refer to the "OS(R/T)-3A 118 - 159.4 MHz Analog Board Component Layout" diagram and the "OS(R/T)-3A 118 - 159.4 MHz Analog Board Schematic Diagram" on pages 4-5, 4-6 and 4-7 of this manual.
3.5.5.4 UHF OS(R/T)-3H 406 - 470 MHz VCO Alignment Refer to the "OS(R/T)-3H 406 - 470 MHz Analog Board Component Layout" diagram and the "OS(R/T)-3H 406 - 470 MHz Analog Board Schematic Diagram" on pages 4-13, 4-14 and 4-15 of this manual. Using a high impedance (10 MΩ) DC Voltmeter, measure the PLL control voltage at TP4 located on the synthesizer module analog board (top). Access to TP4 is available through the synthesizer top cover.
3.5.6 Jumper Configuration Solder jumpers are clearly marked on both synthesizer digital and analog circuit boards. Refer to the "OS(R/T)-3(A/H) Digital Board Component Layout (Bottom)" diagram on page 4-17 of this manual and the applicable "OS(R/T)-3(A/H) Analog Board Component Layout (Top)" diagram on page 4-18 for jumper locations. The following list details the required jumper configuration for the two synthesizer operating modes: 1) Internal reference.
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4 ILLUSTRATIONS AND SCHEMATIC DIAGRAMS 4.1 OS(R/T)-3H 29 - 71.4 MHz Analog Board Diagrams 4.1.1 OS(R/T)-3H 29 - 71.
5. PARTS LISTS This is hidden text. 5.1 OS(R/T)-3H 29 - 71.
6. REVISION HISTORY ISSUE DATE REVISION 1 May 97 • Issue 1 2 Mar 98 • 3 Mar 00 • 4 Changes to the AM Analog board (OST-3A128) to improve performance ECO #547. C37 was XXX nF is now XXX nF and C40 was XXX pF is now not installed C45 was XXX nF is now XXX nF and C49 was XXX nF is now XXX nF R32 was XXX kΩ is now XXX kΩand R36 was XXX Ω is now XXX Ω Changes to the AM Analog board to improve performance at ECO #565. L4 was XXX µH is now XXX µH -40˚C.
ISSUE DATE 4 Aug 00 • Changes to the OS(R/T)-3(A/H) Digital board. ECO #599. R30, R31 & R32 were XXX R are now XXX R. • 7-2 REVISION Changes to the OS-3H 406-470 MHz Analog board. ECO # 597. R48 was XXX R is now XXX R, R49 was XXX R is now XXX R. R52 was XXX R is now Not Installed.
DANIELS TM ELECTRONICS LTD. MT-3 RADIO SYSTEMS UHF SYNTHESIZED TRANSMITTER CHANNEL DESIGNATION TABLES UT-3/400 406 - 470 MHz Covers models: UT-3/420-SNC2, UT-3/420-SWC2, UT-3/420-SNC8, UT-3/420-SWC8, UT-3/460-SNC2, UT-3/460-SWC2, UT-3/460-SNC8, UT-3/460-SWC8, Copyright © 1998 Daniels Electronics Ltd. All rights reserved.
Reviewed By: Quality Assurance: LARRY FREEMAN Name Signature _________________ Date 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.
TABLE OF CONTENTS Page 1. UT-3/420 Channel Designation Table: 406-430MHz, 12.5kHz Increments.....................1-1 2 UT-3/460 Channel Designation Table: 450-470MHz, 12.5kHz Increments.....................2-1 3 REVISION HISTORY.....................................................................................................
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1. Chan. Num. UT-3/420 Channel Designation Table: 406-430MHz, 12.5kHz Increments Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) 0000 406.00000 0001 .01250 0002 .02500 0003 .03750 0004 .05000 0005 .06250 0006 .07500 0007 .08750 0008 .10000 0009 .11250 00010 .12500 0011 .13750 0012 .15000 0013 .16250 0014 .17500 0015 .18750 0016 .20000 0017 .21250 0018 .22500 0019 .23750 0020 406.25000 0021 .
UT-3/420 Channel Designation Table: 406 to 430 MHz, 12.5 kHz Increments (continued) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq.
UT-3/420 Channel Designation Table: 406 to 430 MHz, 12.5 kHz Increments (continued) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq.
UT-3/420 Channel Designation Table: 406 to 430 MHz, 12.5 kHz Increments (continued) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq.
2 UT-3/460 Channel Designation Table: 450-470MHz, 12.5kHz Increments Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq.
UT-3/460 Channel Designation Table: 450 to 470 MHz, 12.5 kHz Increments (continued) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq.
UT-3/460 Channel Designation Table: 450 to 470 MHz, 12.5 kHz Increments (continued) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq.
UT-3/460 Channel Designation Table: 450 to 470 MHz, 12.5 kHz Increments (continued) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) Chan. Num. Freq. (MHz) 5095 469.68750 5096 .70000 5097 .71250 5098 .72500 5099 .73750 5100 469.75000 5101 .76250 5102 .77500 5103 .78750 5104 .80000 5105 .81250 5106 .82500 5107 .83750 5108 .85000 5109 .86250 5110 .87500 5111 .88750 5112 .90000 5113 .91250 5114 .92500 5115 .
3 REVISION HISTORY ISSUE DATE REVISION 1 Issue 1 September 98 DANIELS DE ELECTRONICS UHF Transmitter Channel Designation Tables 406 - 470 MHz 3-1
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