User Manual
Table Of Contents
- 1GENERAL
- 1.1Introduction
- 1.2Interim Operation
- 1.3Manual Organization
- 1.4VT-4R400 Transmitter Family Models
- 1.5Performance Specifications
- 1.5.1General
- 1.5.2Audio Specifications
- 1.5.3Physical Specifications
- 2THEORY OF OPERATION
- 2.1General
- 2.2Power Supply
- 2.3High Speed Serial Interconnect
- 2.4Audio Circuits
- 2.5PTT Circuitry
- 2.6Microprocessor Board
- 2.7Channel and Bank Selection
- 2.7.1Channel Select Line Mapping
- 2.8Jumper Functions and standard configuration
- 2.9Hang Timer Selection
- 2.10Kerchunk noise selection
- 2.11Test Points
- 2.12Connector Pinouts
- 2.12.1Connector J9
- 2.12.2Connector P1
- 2.13Transmitter Programming
- 2.13.1Transmitter Wide Options
- 2.13.1.1Frequency Band
- 2.13.1.2Source ID
- 2.13.1.3Secure Hardware Equipped
- 2.13.1.4Timeout Options
- 2.13.2Channel Wide Settings
- 2.13.2.1Channel Name
- 2.13.2.2Frequency
- 2.13.2.3Analog Bandwidth
- 2.13.2.4Deviation
- 2.13.2.5Channel Type
- 2.13.2.6Audio Pre-emphasis
- 2.13.2.7Timeout Value
- 2.13.2.8Project 25 Squelch Settings: Network Access Code (NAC)
- 2.13.2.9Project 25 Squelch Settings: Talk Group ID (TGID)
- 2.13.2.10Analog Signaling Settings: Signaling
- 2.13.2.11Analog Signaling Settings: CTCSS Tone
- 2.13.2.12Analog Signaling Settings: Reverse Burst
- 2.13.2.13Analog Signaling Settings: DCS Code
- 2.13.2.14Analog Signaling Settings: Turnoff Code
- 2.13.2.15Analog Squelch Settings: Invert DCS
- 3Transmitter Assembly and Adjustment
- 3.1Frequency Change
- 3.2Minor Frequency Change
- 3.3Major Frequency Change
- 3.4Digital Signal Processor Board Alignment
- 3.4.1Radio Service Software
- 3.4.2Radio Programming Interface Module Interconnection
- 3.4.3Reference Oscillator Adjustment
- 3.4.4Transmitter Deviation Balance Adjustment
- 3.4.5Transmitter Deviation Limit Adjustment
- 3.4.6Audio Level Alignment
- 3.4.7Amplifier Alignment
- 3.5Recommended Test Equipment List
- 3.6Repair Note
- 3.7Printed Circuit board Numbering Convention
- 4Repeater System Configuration
- 4.1Interim Repeater
- 4.1.1Repeater Interconnect Cable Pinout
- 4.2Project 25 Compliant Repeater
- 4.3Repeater System Troubleshooting
- 5ILLUSTRATIONS
- 5.1Digital Repeater Transmitter Front Panel
- 5.2Digital Repeater Transmitter Exploded View
- 5.3Digital Repeater Transmitter Block Diagram (Interim Mode)
- 5.4Digital Repeater Transmitter Schematic Diagram
- 5.5Digital Repeater Transmitter Main Board Component Layout (Bottom)
- 5.6Digital Repeater Transmitter Main Board Component Layout (Top)
- 5.7Digital Repeater Microprocessor Board Component Layout (Bottom)
- 5.8Digital Repeater Microprocessor Board Component Layout (Top)
- 6PARTS LIST
- 6.1Digital Repeater Transmitter Main Board Parts List
- 6.1.1Digital Repeater Transmitter Main Board Electrical Parts List
- 6.1.2Digital Repeater Transmitter Main Board Mechanical Parts List
- 6.2Digital Repeater Microprocessor Board Parts List
- 6.2.1Digital Repeater Microprocessor Board Electrical Parts List
- 6.2.2Digital Transmitter Additional PCBs
- 7REVISION HISTORY
DE
DANIELS
ELECTRONICS
VT-4R150 VHF Project 25
Digital
Transmitter
Instruction
Manual
6-5
Description Part No. Qty.
SPACER,
5mmOD, 6mm L,M2.5 5920-5A0600C01 4
SPACER,
5mmOD,5.2mmL,2.6mmHOLE
5920-5A052C01 1
TERMINAL,
CRIMP,
FEM.,22-24,Au,MOLEX
16-02-0103 5021-TF22B002 4
TUBING,
PVC-105C,
8 AWG,
CLEAR,
10cm 7602-105C08CL 1
WIRE,
PVC/ST
RAND.,
22AWG, BLUE, 16cm 7110-22S07306 1
WIRE,
TFE/STRAND.,
24AWG,
ORG.,
14cm 7121-24S19363 1
WIRE,
PVC/STRAND.,
22AWG,
ORG.,
15cm 7110-22S07303 1
WIRE,
TFE/STRAND.,
24AWG, RED, 14cm 7121-24S19362 1
WIRE,
PVC/STRAND.,
22AWG, RED, 19cm 7110-22S07302 1
WIRE,
TFE/STRAND.,
24AWG, VIO., 14cm 7121-24S19367 1
WIRE,
PVC/STRAND.,
22AWG,BLACK, 14cm 7110-22S07300 1
WIRE,
PVC/STRAND.,
22AWG,BROWN, 14cm 7110-22S07301 1
WIRE, TFE/STRAND.,24AWG,YELLOW, 14cm 7121-24S19364 1
WIRE,
PVC/STRAND.,22AWG,YELLOW,
12cm 7110-22S07304 1
WIRE,
TFE/STRAND.,
24AWG, RED, 8cm 7121-24S19362 1
WIRE,
TFE/STRAND.,
24AWG,BLACK, 8cm 7121-24S19360 1
6.2
Digital
Repeater Microprocessor
Board
Parts List
6.2.1
Digital
Repeater Microprocessor
Board
Electrical Parts List
Ref
Desig Description Part No.
C23
CAP.,
SM,
1.0uF
TANT., 20%, 16V 1055-5A105M16
C24
CAP.,
SM,
22pF
CER.,
0805, C0G 1008-1A220J1G
C25
CAP.,
SM,
22pF
CER.,
0805, C0G 1008-1A220J1G
C26
CAP.,
SM,
4.7uF
TANT., 10%, 16V
1055-5B475K16
C27
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
D5 – D8 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
J6 HEADER, 2x10,
.050",
R/A,
Au 5026-GH127E10
J13 PLUG,
SM,25
CCT,1.00mm,BRD-BRD
5028-DP100R25
J14 HEADER, 2x10,
.050",
R/A,
Au 5026-GH127E10
J15 HEADER,
SM,2x10,.050",DV,W/PIN
5028-GH127F10
JU40 HEADER,
.1",
R/A,1
ROW x 3 PIN 5010-H103RANL
PCB
PCB,
RTR.
DIG. TX µ
-PROCESSOR
BOARD 4421-11500903
R18
RES.,
SM,
1K0 0805, 1%,100ppm 1150-3A1001FP
R24
RES.,
SM,
10K0 0805, 1%,100ppm 1150-4A1002FP
R25
RES.,
SM,
10K0 0805, 1%,100ppm 1150-4A1002FP
R26
RES.,
SM,
10M0 1206, 5%,400ppm
1151-7B0106JG
R27
RES.,
SM,
10K0 0805, 1%,100ppm 1150-4A1002FP
R28
RES.,
SM,
100K0 0805, 1%,100ppm 1150-5A1003FP
R29
RES.,
SM,
10K0 0805, 1%,100ppm 1150-4A1002FP
R30
RES.,
SM,
10K0 0805, 1%,100ppm 1150-4A1002FP