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DANIELS

ELECTRONICS LTD.

TM

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. 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 Electronics Ltd.  registered in the United States Patent and
Trademark Office.

Issue:

3

Previous Issue: 

2

Issue Date:

March 2000

Previous Issue Date:

March 1998

Daniels Electronics Ltd.

Printing Date:

March 2000

Victoria, BC.

Part No.:

IM10-OS3AH   

PRINTED IN CANADA

Summary of Contents for OST-3H035

Page 1: ...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 Da...

Page 2: ..._ 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 equ...

Page 3: ...ncy Control 2 6 2 4 1 BCD Switch Frequency Control 2 6 2 4 2 Frequency Select Handle Frequency Control 2 7 2 5 Synthesizer Base and Frequency Increment Table 2 7 2 6 5 0 6 25 kHz Channelization 2 8 2...

Page 4: ...alog Board Component Layout Top 4 10 4 3 3 OS R T 3H 128 174 MHz Analog Board Schematic Diagram 4 11 4 4 OS R T 3H 406 470 MHz Analog Board Diagrams 4 13 4 4 1 OS R T 3H 406 470 MHz Analog Board Compo...

Page 5: ...er enhancing electrical noise isolation 1 2 OS R T 3 A H Enhanced Synthesizer Family Models The OS 3A H Synthesizer module family forms an integral component of the MT 3 receiver and transmitter produ...

Page 6: ...2 6 MHz RF output OSR 3H162 synthesized installed in FM receiver 150 174 MHz RF output Frequency Band 406 470 MHz Common OS 3H4xx Analog Board OST 3H440 synthesized installed in FM transmitter 406 470...

Page 7: ...MHz OST 3H141 OSR 3H141 139 4 MHz 159 4 MHz Full band OSR 3A149 150 MHz 174 MHz 2 0 MHz OST 3H162 OSR 3H162 406 MHz 470 MHz Full band OST 3H440 427 4 MHz 451 4 MHz Full band OSR 3H440 Output Power 5 d...

Page 8: ...niels 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 For example PCB numb...

Page 9: ...59 4 MHz 128 174 MHz and 406 470 MHz respectively All four analog boards are similar in operation and circuit topology with the VCO Loop Filter and Output Lowpass Filter sections being band specific R...

Page 10: ...SMB connector J2 provides an RF output level of approximately 5 dBm into a 50 load An optional modulation input is provided through connection P1 18 Digital Board and routed to the Analog board via c...

Page 11: ...s provided through connection P1 and a voltage divider network formed by R21 and R22 A large signal division ratio established by the resistive dividers R21 and R22 allows low deviation less than 5 kH...

Page 12: ...ard Schematic diagram RF output power is taken from the source of Q5 and amplified buffered by Q6 U11 provides further amplification and isolation while delivering 10 dBm to a five pole lowpass output...

Page 13: ...rface mount VCO modules designated U17 for full frequency band coverage Two VCO modules are used to cover 406 470 MHz TX and 427 4 451 4 MHz RX for transmitter and receiver UHF applications respective...

Page 14: ...synthesizer output frequency is straight forward If all four of the channel select lines CHAN SEL3 CHAN SEL0 are pulled low grounded the synthesizer will scan four BCD switches connected to SW1 COM S...

Page 15: ...The command protocols are simple ASCII both to and from the synthesizer The frequency value and the channel are displayed on the Front Panel for several seconds only in order to conserve power Anothe...

Page 16: ...and add it to the synthesizer base frequency Example An OSR 3H162 synthesizer has a base frequency of 150 MHz The selected channel number is 7205 The synthesizer output frequency is 7205 5000 x 6 25...

Page 17: ...is determined as follows for Synthesizers having 12 5 kHz channel increment capability Multiply the BCD switch setting by 12 5 kHz and add it to the synthesizer base frequency Example An OST 3H440 syn...

Page 18: ...DE DANIELS ELECTRONICS 2 10 Enhanced AM FM Synthesizer Instruction Manual OS R T 3 A H 29 470 MHz This Page Intentionally Left Blank...

Page 19: ...ally designed surface mount rework and repair stations complete with Electro Static Dissipative ESD protection When removing Surface Mount Solder Jumpers it is recommended to use solder wick braid in...

Page 20: ...frequency greater than the maximum tuning range for a particular model Refer to Specifications section 1 3 from an initial factory setting requires a slightly more involved alignment procedure as desc...

Page 21: ...SMB connectors J1 and J2 by desoldering the center pins and removing four M2 0 machine screws These connection points are shown in the OS R T 3 A H XXX XXX MHz Analog Board Component Layout Top diagr...

Page 22: ...require modification in order to pull the VCO tune range within the adjustment range of fine tuning capacitor C24 The top synthesizer cover must be removed in order to gain access to the coarse frequ...

Page 23: ...the Specifications section of this manual 3 5 5 3 VHF OS R T 3H 128 174 MHz VCO Alignment Refer to the OS R T 3H 128 174 MHz Analog Board Component Layout diagrams and the OS R T 3H 128 174 MHz Analog...

Page 24: ...d the tuning range capability of the synthesizer will result in unlocked operation The tuning range capability of all synthesizer models is listed in the Specifications section of this manual 3 5 5 5...

Page 25: ...rence frequency selected is 9 6 MHz JU2 must not be installed when using the internal 9 6 MHz TCXO reference JU2 is used by the microcontroller to establish the correct reference frequency division ra...

Page 26: ...DE DANIELS ELECTRONICS 3 8 Enhanced AM FM Synthesizer Instruction Manual OS R T 3 A H 29 470 MHz This Page Intentionally Left Blank...

Page 27: ...SEL L1 10 H C38 1 0 F R36 R32 R33 15K 680R 2K7 LED1 TITLE OS 3H050 ANALOG BOARD THROUGH HOLE BOTTOM DESIGNATION C48 SEL C49 22nF R2 330R L12 4 7 H DESIG TX 29 40 MHz OST 3H035 C48 TX 39 50 MHz OST 3H...

Page 28: ...C55 10nF R52 49R9 C56 330pF R28 N I U11 MSA 0611 U16 MSA 0611 MSA 0611 U15 SEL L13 SEL L11 C57 SEL 274R R55 274R R56 18R2 R54 SEL C58 SEL C52 330pF C53 C46 330pF 330pF C51 10nF 27R4 R45 10nF C43 47R5...

Page 29: ...330pF C36 AGND IN OUT GND 1 3 4 2 MSA 0611 U11 180R R40 1 5uH L8 22uF C42 AGND 10nF C43 AGND 8VA 330pF C44 18R2 R41 47R5 R44 47R5 R47 33R2 R46 AGND 330pF C46 AGND IN OUT GND 1 3 4 2 MSA 0611 U15 180R...

Page 30: ...DE DANIELS ELECTRONICS 4 4 Enhanced AM FM Synthesizer Instruction Manual OS R T 3 A H 29 470 MHz This Page Intentionally Left Blank...

Page 31: ...EL LED1 AM TX 118 138 MHz OST 3A130 10 AM RX 139 4 159 4 MHz OSR 3A130 10 DESIG C39 C45 C49 R32 R36 SELECT COMPONENTS NOT INSTALLED 22 nF 2 2 nF 1 0 F 330 nF 470 nF 15K 68K 1K8 8K2 C38 100 nF 1 0 F C3...

Page 32: ...4 1k82 R46 475R D4 BYD17J D6 SEL 4 7 F C61 10nF C62 274K R57 4k75 R62 C60 2 2 F U17 LTC1257I U19 MC33172 U18 PIC12C672 SEL R60 R58 825K R59 10K0 R63 10R0 137k R43 R37 49k9 100 F C32 100 F C33 D7 SEL 1...

Page 33: ...D C43 10nF AGND 8VA C44 330pF L11 47nH L12 47nH C53 27pF C58 47pF C59 27pF AGND AGND AGND J2 AGND 2 1 3 D2 MMBV609L 2 1 3 D1 MMBV609L L4 1 5uH R20 10R0 AGND R25 10R0 C25 SEL AGND C23 SEL L2 10uH AGND...

Page 34: ...DE DANIELS ELECTRONICS 4 8 Enhanced AM FM Synthesizer Instruction Manual OS R T 3 A H 29 470 MHz This Page Intentionally Left Blank...

Page 35: ...C39 SEL L1 10 H R2 330R C38 SEL C49 SEL R36 R32 R33 SEL 680R SEL LED1 TITLE OS 3H ANALOG BOARD THROUGH HOLE BOTTOM DESIGNATION L9 VHF LOW BAND 128 153 MHz OSx 3H141 VHF HIGH BAND 150 174 MHz OSx 3H162...

Page 36: ...SEL C40 D3 10nF C34 10nF C35 SEL C36 330pF R31 49R9 R30 10R0 C44 330pF C47 330pF R41 18R2 R47 47R5 R48 47R5 R49 10R0 C44 C55 10nF R52 N I C56 330pF R28 N I U11 MSA 0611 U16 MSA 0611 MSA 0611 MSA 0611...

Page 37: ...8 R27 1 4 3 2 L5 AGND 6 8uF C28 10nF C34 AGND 1 3 2 D3 MMBD701L 1 5uH L7 100uF C32 AGND 10R0 R30 330pF C36 C24 1 14pF AGND 8VA AGND IN OUT GND 1 3 4 2 MSA 0611 U11 180R R40 1 5uH L8 22uF C42 AGND 10nF...

Page 38: ...DE DANIELS ELECTRONICS 4 12 Enhanced AM FM Synthesizer Instruction Manual OS R T 3 A H 29 470 MHz This Page Intentionally Left Blank...

Page 39: ...BOARD THROUGH HOLE BOTTOM DESIGNATION U17 VCO 1 VCO INSTALLED U17 LVCO 2309 TEV VCO 190 435 MT RX 427 4 451 4 MHz TX 406 470 MHz R21 SEL C60 SEL C16 100nF DESIGNATION OSR 3H440 RX 427 4 451 4 MHz OST...

Page 40: ...10nF C4 1nF C17 0R0 R39 10R0 R25 10nF C34 C35 100pF C36 330pF R31 274R R30 10R0 C44 330pF C47 330pF R41 18R2 R47 47R5 R48 27R4 R49 33R2 C44 C55 10nF R52 49R9 C56 330pF R28 10R0 U11 MSA 0611 U16 MSA 0...

Page 41: ...F AGND AGND C34 10nF AGND L7 1 5uH C32 100uF AGND R30 10R0 C36 330pF AGND 8VA AGND IN OUT GND 1 3 4 2 U11 MSA 0611 R40 180R L8 1 5uH C42 22uF AGND C43 10nF AGND 8VA C44 330pF R41 18R2 R44 47R5 R47 47R...

Page 42: ...DE DANIELS ELECTRONICS 4 16 Enhanced AM FM Synthesizer Instruction Manual OS R T 3 A H 29 470 MHz This Page Intentionally Left Blank...

Page 43: ...7k4 D3 BAS16 DWG No OS3HDIGAS4B TITLE OS 3H DIGITAL BOARD SOLDER SIDE SM VALUE DESIGNATION JU2 REV DATE 14 SEPTERMBER 1998 C15 10uF JU1 U9 OPL550 U8 OP140A U7 OP140A U6 OP140A U5 OP140A P1 1ROW x 12P...

Page 44: ...7k4 R14 27k4 R15 27k4 R16 27k4 R27 27k4 R26 10k0 R 17 27k4 R 33 332R R 32 332R R 31 332R C10 100nF C11 100nF C12 100nF C13 100nF C14 100nF R 30 332R R 23 10k0 R 3 27k4 R 2 27k4 C1 100nF C2 100nF Q11 B...

Page 45: ...E4 PE3 PE2 PE1 PE0 PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0 VRL 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 17 18 19 25 24 23 22 21 20 26 34 33 32 31 30 29 28 27 42 41 40 39 38 37 36...

Page 46: ...DE DANIELS ELECTRONICS 4 20 Enhanced AM FM Synthesizer Instruction Manual OS R T 3 A H 29 470 MHz This Page Intentionally Left Blank...

Page 47: ...C0G 1008 2A151J1G OST 3H035 C23 CAP SM 100pF CER 0805 C0G 1008 2A101J1G OST 3H045 C23 CAP SM 56pF CER 0805 C0G 1008 1A560J1G OSR 3H061 C24 CAP 1 14pF TRIM STAND 6 1082 A1R0014J C25 CAP SM 1 0nF CER 0...

Page 48: ...5 C0G 1008 2A101J1G OSR 3H061 C61 CAP SM 150pF CER 0805 C0G 1008 2A151J1G OST 3H035 C61 CAP SM 100pF CER 0805 C0G 1008 2A101J1G OST 3H045 C61 CAP SM 56pF CER 0805 C0G 1008 1A560J1G OSR 3H061 C62 CAP S...

Page 49: ...P R23 R25 RES SM 10R0 0805 1 100ppm 1150 1A10R0FP R26 RES 1R2 METAL FILM 5 0 5W 1101 0A01R2JI R27 RES SM 15K0 0805 1 100ppm 1150 4A1502FP R28 RES NOT INSTALLED NOT INSTALLED R29 RES SM 18K2 0805 1 100...

Page 50: ...LST 2014 1L18230T U5 LED OP140A I R GaAs 81 x 23 PLAST 2013 1G18230A U6 I C LT1129 IS8 PROG VOLT REG SO8 2305 11290N08 U7 U8 I C LP2951 PROG VOLT REG SO 8 2305 29510N08 U9 MOSFET SI9945DY N CHAN SO 8...

Page 51: ...7R 50V 1008 3A102K5R C27 CAP SM 4 7uF TANT 10 16V 1055 5B475K16 C28 CAP SM 6 8uF TANT 20 10V 1055 5B685M10 C29 CAP SM 47uF TANT 20 16V 1055 6D476M16 C30 CAP SM 10nF CER 0805 X7R 50V 1008 4A103K5R C31...

Page 52: ...5 TURNS 1 59 mm pitch 5791 A1010300 WIRE COPPER 20AWG SILVER PLD 10 2cm 7140 30002000 1pc 10cm 2pcs 10mm L6 L8 CHOKE RF MOULD 1 5uH 10 25 1251 3A001R5K L11 L12 INDUCTOR SM 47nH CER 10 1008 1256 1B47N0...

Page 53: ...0 5A1373FP R44 RES SM 1K82 0805 1 100ppm 1150 3A1821FP R45 RES SM 18R2 0805 1 100ppm 1150 1A18R2FP R46 RES SM 475R0 0805 1 100ppm 1150 2A4750FP R53 RES SM 137K0 0805 1 100ppm 1150 5A1373FP R57 RES SM...

Page 54: ...A102K5R OS 3H141 C25 CAP SM 1 0nF CER 0805 X7R 50V 1008 3A102K5R OS 3H162 C26 CAP SM 1 0nF CER 0805 X7R 50V 1008 3A102K5R C27 CAP SM 4 7 F TANT 10 16V 1055 5B475K16 C28 CAP SM 6 8 F TANT 20 10V 1055 5...

Page 55: ...OR SM 47nH CER 10 1008 1256 1B47N00K L12 INDUCTOR SM 47nH CER 10 1008 1256 1B47N00K LED1 LED SUB MIN 2mm SQ AXIAL ORG 2012 S229013C PCB PCB ANALOG OS 3H H P SYNTH 4309 26500252 Q1 Q2 TRANSISTOR BC817...

Page 56: ...M 27R4 0805 1 100ppm 1150 1A27R4FP R46 RES SM 33R2 0805 1 100ppm 1150 1A33R2FP R47 RES SM 47R5 0805 1 100ppm 1150 1A47R5FP R48 RES SM 47R5 0805 1 100ppm 1150 1A47R5FP R49 RES SM 10R0 0805 1 100ppm 115...

Page 57: ...CAP SM 10nF CER 0805 X7R 50V 1008 4A103K5R C31 CAP SM 1 0nF CER 0805 X7R 50V 1008 3A102K5R C32 C33 CAP SM 100uF TANT 20 16V 1055 7D107M16 C34 CAP SM 10nF CER 0805 X7R 50V 1008 4A103K5R C35 CAP SM 100p...

Page 58: ...1150 4A1002FP R13 RES SM 11K8 0805 1 100ppm 1150 4A1182FP R14 RES SM 10K0 0805 1 100ppm 1150 4A1002FP R15 RES SM 10R0 0805 1 100ppm 1150 1A10R0FP R16 R17 RES SM 5K11 0805 1 100ppm 1150 3A5111FP R18 R1...

Page 59: ...m 1150 2A2740FP R57 RES SM 18R2 0805 1 100ppm 1150 1A18R2FP R58 RES SM 274R 0805 1 100ppm 1150 2A2740FP RV1 POT SM5K0 1T TOP ADJ 1174 AS2502J1 TCXO1 VTCXO MODULE 9 6 MHz 4 PIN 1ppm 2641 09600BM5 U1 U4...

Page 60: ...H P SYNTH 4309 26500213 Q1 Q11 TRANSISTOR BC817 25 NPN SOT23 2120 BC817025 R1 RES SM 0 0805 ZERO OHM JUMPER 1150 0A0R0000 R2 R7 RES SM 47K5 0805 1 100ppm 1150 4A4752FP R8 RES SM 6K81 0805 1 100ppm 11...

Page 61: ...43 MIX 3X3 5mm OD CON3 CON5 1210 43030350 3 OS 3A130 FERRITE BEAD 43 MIX 3X3 5mm OD CON3 CON5 1210 43030350 3 OS 3H150 FERRITE BEAD 61 MIX 3X3 5mm OD CON3 CON5 1210 61030350 3 OS 3H440 HEADER 1 1 ROWX...

Page 62: ...DE DANIELS ELECTRONICS 5 16 Enhanced AM FM Synthesizer Instruction Manual OS R T 3 A H 29 470 MHz This Page Intentionally Left Blank...

Page 63: ...d to improve performance at 40 C ECO 565 L4 was 1 5 H is now 3 9 H Changes to the FM Analog boards to improve manufacturing ECO 572 C32 C33 were 100 F through hole tantalums are now 100 F surface moun...

Page 64: ...DE DANIELS ELECTRONICS 6 2 Enhanced AM FM Synthesizer Instruction Manual OS R T 3 A H 29 470 MHz ISSUE DATE REVISION...

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