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Daniels Electronics OSR-3H061 Instruction Manual

Enhanced fm synthesizer
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ENHANCED FM
SYNTHESIZER
INSTRUCTION MANUAL
29-470MHZ
Covers Models:
OSR-3H061
OSR-3H141
OSR-3H162
OSR-3H440
OST-3H440
Copyright © 2006 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 U.S. Patent and Trademark Offi ce.
Document Number:
IM10-OS3AH
Revision:
5-4-0
Revision Date:
Apr 2006
OST-3H035
OST-3H045
OST-3H141
OST-3H162
©
© 2006 Daniels Electronics Ltd. All rights reserved. No part
Daniels Electronics Ltd.
Victoria, BC
PRINTED IN CANADA

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  • Page 1 OST-3H141 OSR-3H440 OST-3H162 OST-3H440 Copyright © 2006 Daniels Electronics Ltd. All rights reserved. No part © 2006 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.
  • Page 2 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. DOCUMENT REVISION Daniels Electronics Ltd. utilizes a three-level revision system. This DEFINITION system enables Daniels to identify the signifi...

  • Page 3: Table Of Contents

    Contents Manual Section Locator ............Manual Section Locator ............Manual Section Locator 29-71.4MHz Enhanced FM Synthesizer ........ Enhanced FM Synthesizer ........ Enhanced FM Synthesizer General Information .................. Theory of Operation .................. Synthesizer Alignment ................Schematics and Illustrations ..............Parts List ....................128-174MHz Enhanced FM Synthesizer ......
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  • Page 5: Manual Section Locator

    Manual Synthesizer Manual Range Range Frequency Frequency See Page 3 See Page 3 VT-3H035 OST-3H035 VR-3H035 29-38MHz 29-38MHz 29-38MHz Enhanced FM OSR-3H061 Enhanced FM Synthesizer 50.4-71.4MHz Synthesizer VT-3H045 OST-3H045 VR-3H045 OS(R/T)-3H OS(R/T)-3H 38-50MHz 38-50MHz 38-50MHz 29-71.4MHz 29-71.4MHz See Page 31...
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  • Page 7: 29-71.4Mhz Enhanced Fm Synthesizer

    29-71.4MHZ ENHANCED FM SYNTHESIZER Covers Models: OST-3H035 OST-3H045 OSR-3H061 Transmitters Receivers Enhanced Enhanced Transmitter Receiver Synthesizer Location Synthesizer Location Radio Model & Model & Model & Model & Frequency Frequency Frequency Synthesizer Manual Synthesizer Manual Range Range Frequency Frequency VT-3H035...
  • Page 8 This Page Intentionally Left Blank Enhanced FM Synthesizer Instruction Manual IM10-OS3AH...

  • Page 9: General Information

    GENERAL INFORMATION IN TR O D U C TIO N O S ( R / T ) - 3 H E N H A N C E D S Y N T H E S I Z E R FA M I LY The OS(R/T)-3H Synthesizer is a compact, fully M O D E L S shielded and environmentally rugged frequency...
  • Page 10 Daniels’ MT-3 Series Transmitter and Receiver modules. 29MHz-38MHz [±0.5MHz] (OST-3H035) Frequency Range (Tuning range with no 38MHz-50MHz [±1.0MHz] (OST-3H045) adjustment is shown in [ ] brackets.): 50.4MHz-71.4MHz [±1.0MHz] (OSR-3H061) Output Power: +5dBm ±2dBm into 50 Ω Harmonics: <-30 dBc Spurious: <-90 dBc...

  • Page 11: Theory Of Operation

    THEORY OF OPERATION TH EO RY OF OP ER AT IO N Internal Power and Control (Digital Board) board, which is controlled by the microcontroller. The main power regulators are provided by The synthesizer operates from a +9.5VDC U6 and U7. Regulator U6 provides switched power source applied to connector pin P1-2.
  • Page 12 U5 on the analog board is also models OST-3H035 and OST-3H045 or 80MHz activated in an unlocked condition and enables for the OSR-3H061 effectively eliminates the micro controller on the digital board to output harmonics. SMB connector J2 provides respond to the unlocked PLL condition.
  • Page 13 29 - 71.4 MHz - Theory of Operation Synthesizer Digital Circuitry (Digital Board) BCD Switch Frequency Control The synthesizer’s digital board circuitry Selection of the desired synthesizer output generates control signals utilized within the frequency is straightforward. If all four of the synthesizer.
  • Page 14 29-38MHz 29MHz 5.0/6.25kHz OST-3H045 38-50MHz 29MHz 5.0/6.25kHz OSR-3H061 50.4-71.4MHz 50.4MHz 5.0/6.25kHz 5.0/6.25kHz Channelization The OS(R/T)-3H synthesizers have been designed to generate frequencies in both 5.0 kHz and 6.25 kHz channel increments. The frequency increments are determined by the channel code number range. The channel code numbers from 0000 to 4999 increment the frequency in 5.0 kHz increments, and channel code numbers from 5000 to 9999 increment the frequency...

  • Page 15: Synthesizer Alignment

    SYNTHESIZER ALIGNMENT GEN E R A L R E C O M M E N D E D T E S T E Q U I P M E N T OS(R/T)-3H enhanced synthesizer alignment is simplifi ed by using a Type 84 subrack and RF Synthesizer alignment requires the following extender card/cable for providing receiver or test equipment, or its equivalent:...
  • Page 16 29 - 71.4 MHz - Synthesizer Alignment OS(R/ T) -3H S YN T H ES IZE R O S ( R / T ) - 3 H S Y N T H E S I Z E R FACTORY C ON FI GU R ATI O N A L I G N M E N T P R O C E D U R E General The OS(R/T)-3H Synthesizer is factory...
  • Page 17 29 - 71.4 MHz - Synthesizer Alignment Synthesizer Removal and Installation Frequency Adjustment and Channel Selection Note: Complete synthesizer alignment can Connect a radio communications test set be performed without removing the through a short section of low loss 50Ω coaxial synthesizer from the radio.
  • Page 18 29 - 71.4 MHz - Synthesizer Alignment If a TP4 reading of approximately +2.3VDC An RF power level of approximately +5dBm is unattainable through adjustment of C24, ±2dBm should be measured at the synthesizer’s then the coarse frequency jumpers, JU2-JU4 SMB output connector J2.

  • Page 19: Schematics And Illustrations

    P RI NT E D C IRCUIT BO ARD N UMB E RI NG CO NVENT IO N 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.
  • Page 20 Schematics and Illustrations - 29-71.4 MHz FM Synthesizer S YNTH E S IZER MODU L E B L O C K DI A GR AM ENHANCED BUFFER BUFFER BANDPASS AMPLIFIER AMPLIFIER FILTER MODULATION RF OUTPUT INPUT ENHANCED EXTERNAL BUFFER CHANNEL AMPLIFIER SELECT / DATA...
  • Page 21 Schematics and Illustrations - 29-71.4 MHz FM Synthesizer OS( R/ T ) - 3 H 2 9 - 7 1 . 4 M HZ A NA L O G B O AR D CO M PO NE NT L AYO UT (TO P) TRANSMITTER RECEIVER TX 29 - 40 MHz...
  • Page 22 Schematics and Illustrations - 29-71.4 MHz FM Synthesizer O S(R/T)-3H 29-71.4MH Z A N A LO G BO ARD CO M PO NEN T L AYOUT ( BOTTOM ) 1.0µF 10µH 10µH COMPONENT LOCATION TABLE DES LC SD DES LC SD DES LC SD LC SD DES LC SD...
  • Page 23 U10 SELECT TABLE C11 D9 C41 H2 R21 F3 U11 J3 ACTIVE HIGH DESIGNATION DESIGNATION OST-3H035 OST-3H035 OST-3H045 OST-3H045 OSR-3H061 OSR-3H061 C12 E2 C42 K2 R22 F3 U15 M3 +5VA MC145191F or C13 E3 C43 K2 R23 G6 U16 M4...
  • Page 24 Schematics and Illustrations - 29-71.4 MHz FM Synthesizer O S(R/T)-3H 29-71.4MH Z D I G I TAL BO ARD O S( R/ T ) - 3 H 2 9 - 7 1 . 4 MH Z DIG ITAL BO ARD CO MPO NEN T LAYOU T ( TO P ) CO M P O NEN T L AYO UT (BO T TO M ) COMPONENT LOCATION TABLE...
  • Page 25 Schematics and Illustrations - 29-71.4 MHz FM Synthesizer O S( R/ T ) - 3 H 2 9 - 7 1 . 4 M HZ DI G I TA L B O AR D SC HE MAT IC DIAG RAM +5VD PRIORITY COR +5VD...
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  • Page 27: Parts List

    PARTS LIST 29 -71 .4MHZ AN A LO G B O A R D ELE CTR I CA L PA RT S L I S T Desig Description Part Number CAP., SM, 1nF CER,0805,X7R,50V 1008-3A102K5R • • • CAP., SM, 1nF CER,0805,X7R,50V 1008-3A102K5R •...
  • Page 28 29 - 71.4 MHz - Parts List 29-71.4MHz Analog Board Electrical Parts List continued Desig Description Part Number CAP., SM, 1nF CER,0805,X7R,50V 1008-3A102K5R • • • CAP., SM, 1nF CER,0805,X7R,50V 1008-3A102K5R • • • CAP., SM, 4.7uF TANT., 10%,16V 1055-5B475K16 •...
  • Page 29 29 - 71.4 MHz - Parts List 29-71.4MHz Analog Board Electrical Parts List continued Desig Description Part Number CAP., SM, 100pF CER., 0805,C0G 1008-2A101J1G • CAP., SM, 150pF CER., 0805,C0G 1008-2A151J1G • CAP., SM, 56pF CER., 0805, C0G 1008-1A560J1G • CAP., SM, 47pF CER., 0805, C0G 1008-1A470J1G •...
  • Page 30 29 - 71.4 MHz - Parts List 29-71.4MHz Analog Board Electrical Parts List continued Desig Description Part Number RES., SM, 49R9 0805, 1%,100ppm 1150-1A49R9FP • • • RES., 330R METAL FILM, 5%,0.5W 1101-2A0331JP • • • RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FP •...
  • Page 31 29 - 71.4 MHz - Parts List 29-71.4MHz Analog Board Electrical Parts List continued Desig Description Part Number RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FP • • • RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FP • • • RES., SM, 47R5 0805, 1%,100ppm 1150-1A47R5FP •...
  • Page 32 29 - 71.4 MHz - Parts List DIG ITA L B OA R D ELEC TR IC A L PART S L IST Desig Description Part Number CAP., SM,100nF CER,0805,X7R,50 1008-5A104K5R CAP., SM,100nF CER,0805,X7R,50 1008-5A104K5R CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16 CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16...
  • Page 33 29 - 71.4 MHz - Parts List Digital Board Electrical Parts List continued Desig Description Part Number RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP...
  • Page 34 29 - 71.4 MHz - Parts List OS(R/ T) 29- 7 1 .4 M H Z MEC HAN I C A L PA RT S L I ST Description Part Number Qty. CASE, OS-3H SYNTH. MODULE,ALUM 3702-66100920 CONN., SMB, JACK,2 HOLE FLANGE 5120-J2SC01BG FERRITE BEAD, 43MIX,3x3.5mm OD 1210-43030350...

  • Page 35: 128-174Mhz Enhanced Fm Synthesizer

    Synthesizer Manual Synthesizer Manual Range Range Frequency Frequency See Page 3 See Page 3 VT-3H035 OST-3H035 VR-3H035 29-38MHz 29-38MHz 29-38MHz Enhanced FM OSR-3H061 Enhanced FM Synthesizer 50.4-71.4MHz Synthesizer VT-3H045 OST-3H045 VR-3H045 OS(R/T)-3H OS(R/T)-3H 38-50MHz 38-50MHz 38-50MHz 29-71.4MHz 29-71.4MHz VT-3/140 OST-3H141...
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  • Page 37: General Information

    GENERAL INFORMATION IN TR O D U C TIO N O S ( R / T ) - 3 H E N H A N C E D S Y N T H E S I Z E R FA M I LY The OS(R/T)-3H Synthesizer is a compact, fully M O D E L S shielded and environmentally rugged frequency...
  • Page 38 128-174 MHz - General Information PERF OR MA N C E SP EC I FI C AT I O N S Narrow band FM, Single loop synthesizer module utilizing Type: low noise VCO and PLL technology. Compatible with Daniels’ MT-3 Series Transmitter and Receiver modules. Frequency Range (Tuning range with no 128.6MHz-152.6MHz [±2.0MHz] (OST-3H141, OSR-3H141) adjustment is shown in [ ] brackets.):...

  • Page 39: Theory Of Operation

    THEORY OF OPERATION TH EO RY OF OP ER AT IO N Internal Power and Control (Digital Board) board, which is controlled by the microcontroller. The main power regulators are provided by The synthesizer operates from a +9.5VDC U6 and U7. Regulator U6 provides switched power source applied to connector pin P1-2.
  • Page 40 128-174 MHz - Theory of Operation The 9.6 or 10.0MHz reference source is divided The fi eld effect transistor Q5 forms part of the down to establish a channel selection step negative resistance VHF amplifi er oscillator that size of 5.0, 6.25, 2.5kHz. A third order passive is tuned on-frequency by the combination of the loop fi...
  • Page 41 128-174 MHz - Theory of Operation Synthesizer Digital Circuitry (Digital Board) BCD Switch Frequency Control The synthesizer’s digital board circuitry Selection of the desired synthesizer output generates control signals utilized within the frequency is straight forward. If all four of the synthesizer.
  • Page 42 128-174 MHz - Theory of Operation Synthesizer Base and Frequency Increments The OS(R/T)-3H Synthesizer operates in frequency increments of 5.0/6.25/2.5kHz. The Base Frequency for any given synthesizer model is the lowest frequency generated. Model Number Model Number Freq. Range Freq. Range Base Freq.

  • Page 43: Synthesizer Alignment

    SYNTHESIZER ALIGNMENT GEN E R A L R E C O M M E N D E D T E S T E Q U I P M E N T OS(R/T)-3H enhanced synthesizer alignment is simplifi ed by using a Type 84 subrack and RF Synthesizer alignment requires the following test extender card/cable for providing receiver or equipment, or its equivalent:...
  • Page 44 128-174 MHz - Synthesizer Alignment OS(R/ T)-3 H SY N TH ESI Z E R O S ( R / T ) - 3 H S Y N T H E S I Z E R FAC TO RY C O N FIG U R AT I O N A L I G N M E N T P R O C E D U R E General The OS(R/T)-3H Synthesizer is factory...
  • Page 45 128-174 MHz - Synthesizer Alignment Synthesizer Removal and Installation Frequency Adjustment and Channel Selection Note: Complete synthesizer alignment Connect a radio communications test set can be performed without removing the through a short section of low loss 50Ω coaxial synthesizer cable to the synthesizer module SMB RF output jack (J2).
  • Page 46 128-174 MHz - Synthesizer Alignment J UMPER CONFIGURATION It is important to check the loop control voltage at TP4 when multiple synthesizer channels have been programmed. All channel selections should The synthesizer’s surface mount solder result in a TP4 voltage within a +1.0 to +4.0VDC jumpers are clearly marked on both of it’s range.

  • Page 47: Schematics And Illustrations

    P RI NT E D C IRCUIT BO ARD N UMB E RI NG CO NVENT IO N 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.
  • Page 48 128-174 MHz - Schematics and Illustrations S YNTH E S IZER MODU L E B L O C K DI A GR AM ENHANCED BUFFER BUFFER BANDPASS AMPLIFIER AMPLIFIER FILTER MODULATION RF OUTPUT INPUT ENHANCED EXTERNAL BUFFER CHANNEL AMPLIFIER SELECT / DATA 5VDC SUPPLY CONTROL...
  • Page 49 128-174 MHz - Schematics and Illustrations OS( R / T ) - 3 H 1 2 8 - 1 7 4 MH Z A NA L O G B OA RD CO MP O NE NT L AYO UT (TO P) C24 Fine Frequency Adjust Remove seven M2.0 COMPONENT LOCATION TABLE...
  • Page 50 128-174 MHz - Schematics and Illustrations O S(R/T)-3H 128-174MH Z A N A LO G BOA RD CO M PON ENT L AYOUT ( BOTTOM ) J211 180R 1.5µH 1.5µH 180R 1.5µH 1.5µH 1-14pF 330R 1.5µH 1.5µF 1.5µF C49 SEL 220R 1.5µH 10uH...
  • Page 51 128-174 MHz - Schematics and Illustrations O S ( R / T ) - 3 H 1 2 8 - 1 7 4 MH Z A NA L O G B O ARD SC HEMAT IC DIAGRAM +8VA SI9945DY +8VA MODULATION INPUT +8VA AGND...
  • Page 52 128-174 MHz - Schematics and Illustrations O S(R/T)-3H 128-174MH Z D I G I TA L B OAR D O S ( R/ T ) - 3 H 1 2 8 - 1 7 4 MHZ DIG ITAL BO ARD CO MPO NEN T LAYOU T ( TO P ) CO M P O NEN T L AYO UT (BO T TO M ) COMPONENT LOCATION TABLE...
  • Page 53 128-174 MHz - Schematics and Illustrations O S ( R/ T ) - 3 H 1 2 8 - 1 7 4 MHZ D I G I TA L B O A RD S CHE MAT IC DIAG RAM +5VD +5VD +5VD PRIORITY COR...
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  • Page 55: Parts List

    PARTS LIST 12 8-1 74M H Z A N AL OG B O A R D ELE CTR I CA L PA RT S L I S T Desig Description Part Number CAP., SM, 1nF CER,0805,X7R,50V 1008-3A102K5R • • • •...
  • Page 56 128 - 174 MHz - Parts Lists 128-174MHz Analog Board Electrical Parts List continued Desig Description Part Number CAP., SM, 4.7uF TANT., 10%,16V 1055-5B475K16 • • • • CAP., SM, 6.8uF TANT., 20%,10V 1055-5B685M10 • • • • CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16 •...
  • Page 57 128 - 174 MHz - Parts Lists 128-174MHz Analog Board Electrical Parts List continued Desig Description Part Number CHOKE, RF/MOLDED,10uH,10%,.25” 1251-4A00100K • • • • CHOKE, RF/MOLDED,10uH,10%,.25” 1251-4A00100K • • • • CHOKE, RF/MOLDED,10uH,10%,.25” 1251-4A00100K • • • • CHOKE, RF/MOLDED,1.5uH,10%,.25 1251-3A001R5K •...
  • Page 58 128 - 174 MHz - Parts Lists 128-174MHz Analog Board Electrical Parts List continued Desig Description Part Number RES., SM, 274K 0805, 1%,100ppm 1150-5A2743FP • • • • RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FP • • • • RES., SM, 20K0 0805, 1%,100ppm 1150-4A2002FP •...
  • Page 59 128 - 174 MHz - Parts Lists 128-174MHz Analog Board Electrical Parts List continued Desig Description Part Number RES., SM, 274R 0805, 1%,100ppm 1150-2A2740FP • • • • RES., SM, 274R 0805, 1%,100ppm 1150-2A2740FP • • • • RES., SM, 10K0 0805, 1%,100ppm 1150-4A1002FP •...
  • Page 60 128 - 174 MHz - Parts Lists DIG ITA L B OA R D ELEC TR IC A L PART S L IST Desig Description Part Number CAP., SM,100nF CER,0805,X7R,50 1008-5A104K5R CAP., SM,100nF CER,0805,X7R,50 1008-5A104K5R CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16 CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16...
  • Page 61 128 - 174 MHz - Parts Lists Digital Board Electrical Parts List continued Desig Description Part Number RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP...
  • Page 62 128 - 174 MHz - Parts Lists OS(R/ T) 1 2 8 - 1 74 M H Z ME CH A N I C AL PARTS L I S T Description Part Number Qty. CASE, OS-3H SYNTH. MODULE,ALUM 3702-66100920 CONN., SMB, JACK,2 HOLE FLANGE 5120-J2SC01BG FERRITE BEAD, 43MIX,3x3.5mm OD 1210-43030350...

  • Page 63: 406-470Mhz-Enhanced Synthesizer

    Manual Synthesizer Manual Range Range Frequency Frequency See Page 3 See Page 3 VT-3H035 OST-3H035 VR-3H035 29-38MHz 29-38MHz 29-38MHz Enhanced FM OSR-3H061 Enhanced FM Synthesizer 50.4-71.4MHz Synthesizer VT-3H045 OST-3H045 VR-3H045 OS(R/T)-3H OS(R/T)-3H 38-50MHz 38-50MHz 38-50MHz 29-71.4MHz 29-71.4MHz See Page 31...
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  • Page 65: General Information

    GENERAL INFORMATION IN TR O D U C TIO N O S ( R / T ) - 3 H E N H A N C E D S Y N T H E S I Z E R FA M I LY The OS(R/T)-3H Synthesizer is a compact, fully M O D E L S shielded and environmentally rugged frequency...
  • Page 66 406-470 MHz - General Information PERF O R MA N C E SP EC I F I C AT I O N S Narrow band FM, Single loop synthesizer module utilizing Type: low noise VCO and PLL technology. Compatible with Daniels MT-3 series Transmitter and Receiver modules.

  • Page 67: Theory Of Operation

    THEORY OF OPERATION TH EO RY OF OP ER AT IO N Internal Power and Control (Digital Board) board, which is controlled by the microcontroller. The main power regulators are provided by The synthesizer operates from a +9.5VDC U6 and U7. Regulator U6 provides switched power source applied to connector pin P1-2.
  • Page 68 406-470 MHz - Theory of Operation The 9.6 or 10.0MHz reference source is divided The UHF OS(R/T)-3H 406-470MHz synthesizer down to establish a channel selection step employs an integrated surface mount VCO size of 5.0/6.25, 12.5, or 25.0kHz. A third order module (U17) capable of full frequency band passive loop fi...
  • Page 69 406-470 MHz - Theory of Operation Synthesizer Digital Circuitry (Digital Board) BCD Switch Frequency Control The synthesizer’s digital board circuitry Selection of the desired synthesizer output generates control signals utilized within the frequency is straightforward. If all four of the synthesizer.
  • Page 70 406-470 MHz - Theory of Operation Synthesizer Base and Frequency Increments The OS(R/T)-3H Synthesizer operates in frequency increments of 12.5kHz. The Base Frequency for any given synthesizer model is the lowest frequency generated. Model Number Model Number Freq. Range Freq. Range Base Freq.

  • Page 71: Synthesizer Alignment

    SYNTHESIZER ALIGNMENT GEN E R A L R E C O M M E N D E D T E S T E Q U I P M E N T OS(R/T)-3H enhanced synthesizer alignment is simplifi ed by using a Type 84 subrack and RF Synthesizer alignment requires the following test extender card/cable for providing receiver or equipment, or its equivalent:...
  • Page 72 406-470 MHz - Synthesizer Alignment OS(R/ T)-3 H SY N TH ESI Z E R O S ( R / T ) - 3 H S Y N T H E S I Z E R FAC TO RY C O N FIG U R AT I O N A L I G N M E N T P R O C E D U R E General The OS(R/T)-3H Synthesizer is factory...
  • Page 73 406-470 MHz - Synthesizer Alignment Synthesizer Removal and Installation Frequency Adjustment and Channel Selection Note: Complete synthesizer alignment can Connect a radio communications test set be performed without removing the through a short section of low loss 50Ω coaxial synthesizer from the radio. cable to the synthesizer’s SMB RF output jack (J2).
  • Page 74 406-470 MHz - Synthesizer Alignment J UMPER CONFIGURATION PLL control voltages below approximately +1.0VDC and above approximately +7.0VDC will indicate an “out of lock” condition. It is The synthesizer’s surface mount solder important to check the loop control voltage at jumpers are clearly marked on both of it’s TP4 when multiple synthesizer channels have digital and analog circuit boards.

  • Page 75: Schematics And Illustrations

    P RI NT E D C IRCUIT BO ARD N UMB E RI NG CO NVENT IO N 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.
  • Page 76 406-470 MHz - Synthesizer Schematics and Illustrations S YNTH E S IZER MODU L E B L O C K DI A GR AM ENHANCED BUFFER BUFFER BANDPASS AMPLIFIER AMPLIFIER FILTER MODULATION RF OUTPUT INPUT ENHANCED EXTERNAL BUFFER CHANNEL AMPLIFIER SELECT / DATA 5VDC SUPPLY...
  • Page 77 406-470 MHz - Synthesizer Schematics and Illustrations OS( R / T ) - 3 H 4 0 6 - 4 7 0 MH Z A NA L O G B OA RD CO MP O NE NT L AYO UT (TO P) COMPONENT LOCATION TABLE DES LC SD DES LC SD DES...
  • Page 78 406-470 MHz - Synthesizer Schematics and Illustrations O S(R/T)-3H 406-470MH Z A N A LO G BOA RD CO M PON ENT L AYOUT ( BOTTOM ) COMPONENT LOCATION TABLE DES LC SD DES LC SD DES LC SD DES LC SD LC SD E6 T C42 B5 T...
  • Page 79 406-470 MHz - Synthesizer Schematics and Illustrations O S ( R / T ) - 3 H 4 0 6 - 4 7 0 MH Z A NA L O G B O ARD SC HEMAT IC DIAGRAM +8VA +8VA MODULATION INPUT +8VA 10uH...
  • Page 80 406-470 MHz - Synthesizer Schematics and Illustrations O S(R/T)-3H 406-470MH Z D I G I TA L B OAR D O S ( R/ T ) - 3 H 4 0 6 - 4 7 0 MHZ DIG ITAL BO ARD CO MPO NEN T LAYOU T ( TO P ) CO M P O NEN T L AYO UT (BO T TO M ) COMPONENT LOCATION TABLE...
  • Page 81 406-470 MHz - Synthesizer Schematics and Illustrations O S ( R/ T ) - 3 H 4 0 6 - 4 7 0 MHZ D I G I TA L B O A RD S CHE MAT IC DIAG RAM +5VD +5VD +5VD...
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  • Page 83: Parts Lists

    PARTS LISTS 40 6-4 70M H Z A N AL OG B O A R D ELE CTR I CA L PA RT S L I S T Desig Description Part Number CAP., SM, 1nF CER,0805,X7R,50V 1008-3A102K5R • • • CAP., SM, 1nF CER,0805,X7R,50V 1008-3A102K5R •...
  • Page 84 406 - 470 MHz - Parts Lists 406-470MHz Analog Board Electrical Parts List continued Desig Description Part Number CAP., SM,10nF CER,0805,X7R,50V 1008-4A103K5R • • • CAP., SM, 1nF CER,0805,X7R,50V 1008-3A102K5R • • • CAP., SM, 100uF TANT., 20%,16V 1055-7D107M16 • •...
  • Page 85 406 - 470 MHz - Parts Lists 406-470MHz Analog Board Electrical Parts List continued Desig Description Part Number CHOKE, RF/MOLDED,1.5uH,10%,.25 1251-3A001R5K • • • CHOKE, RF/MOLDED,1.5uH,10%,.25 1251-3A001R5K • • • INDUCTOR, SM,18nH CER,10%,1008 1256-1B18N00K • • • INDUCTOR, SM,18nH CER,10%,1008 1256-1B18N00K •...
  • Page 86 406 - 470 MHz - Parts Lists 406-470MHz Analog Board Electrical Parts List continued Desig Description Part Number RES., SM, 10R0 0805, 1%,100ppm 1150-1A10R0FP • • • RES., SM, 274R 0805, 1%,100ppm 1150-2A2740FP • • • RES., 4K7 METAL FILM, 5%, 0.5W 1101-3A0472JP •...
  • Page 87 406 - 470 MHz - Parts Lists 406-470MHz Analog Board Electrical Parts List continued Desig Description Part Number IC,msA-0611, MMIC AMP,SOT-143 2354-MSA06110 • • • IC,msA-0611, MMIC AMP,SOT-143 2354-MSA06110 • • • IC,msA-0611, MMIC AMP,SOT-143 2354-MSA06110 • • • RES., SM, 18R2 0805, 1%,100ppm 1150-1A18R2FP •...
  • Page 88 406 - 470 MHz - Parts Lists DIG ITA L B OA R D ELEC TR IC A L PART S L IST Desig Description Part Number CAP., SM,100nF CER,0805,X7R,50 1008-5A104K5R CAP., SM,100nF CER,0805,X7R,50 1008-5A104K5R CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16 CAP., SM, 47uF TANT., 20%, 16V 1055-6D476M16...
  • Page 89 406 - 470 MHz - Parts Lists Digital Board Electrical Parts List continued Desig Description Part Number RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP RES., SM, 27K4 0805, 1%,100ppm 1150-4A2742FP...
  • Page 90 406 - 470 MHz - Parts Lists OS(R/ T) 4 0 6 - 4 70 M H Z ME CH A N I C AL PARTS L I S T Description Part Number Qty. CASE, OS-3H SYNTH. MODULE,ALUM 3702-66100920 CONN., SMB, JACK,2 HOLE FLANGE 5120-J2SC01BG FERRITE BEAD, 43MIX,3x3.5mm OD 1210-43030350...

  • Page 91: Revision History

    Revision History REVISION HISTORY Revision Date Description May 97 May 97 • Issue 1 • Issue 1 Mar 98 • Changes to the AM Analog board (OST-3A128) to improve performance. C37 was 220nF now 100nF and C40 was 8.2pF is now not installed C45 was 33nF is now 22nF and C49 was 2.2nF is now 1.5nF R32 was 33K is now 56K and R36 was 3K3 is now 5K6.
  • Page 92 Revision History Revision Date Description Jan 01 • Change to the OS-3A 118-159.4MHz Analog Board. R31 was 100R is now 49R9 • Changes to the OST-3A128 Analog Board. C35 was 5.6pF is now 3.3pF and R40 was 330R is now 220R. Feb 01 •...
  • Page 93 Revision History Revision Date Description 5-1-1 Feb 05 • Ferrite Bead was: 1210-73030350 FERRITE BEAD, 73MIX,3x3.5mm OD now: 1210-43030350 FERRITE, BEAD,43MIX,3x3.5mm OD • Synthesizer Block Diagram now included. • Top frequency corrected from 512 to 470MHz • To allow for an additional channel step size of 2.5 kHz in the VHF 150MHz Enhanced Receivers and Transmitters.
  • Page 94 This Page Intentionally Left Blank Enhanced FM Synthesizer Instruction Manual IM10-OS3AH...

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