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
6-1
6 PARTS LIST
6.1
Digital
Repeater
Transmitter
Main
Board
Parts List
6.1.1
Digital
Repeater
Transmitter
Main
Board
Electrical Parts List
Ref
Desig Description Part No.
C1
CAP.,
SM,
10uF TANT., 20%, 35V 1055-6D106K35
C2
CAP.,
SM,
1.0uF
TANT., 20%, 35V 1055-5B105M35
C3
CAP.,
SM,
10nF
CER,0805,X7R,50V
1008-4A103K5R
C4
CAP.,
SM,
4.7uF
TANT., 10%, 16V
1055-5B475K16
C5
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
C6
CAP.,
SM,
4.7uF
TANT., 10%, 16V
1055-5B475K16
C7
CAP.,
SM,
10uF TANT., 20%, 35V 1055-6D106K35
C8
CAP.,
SM,
1.0uF
TANT., 20%, 35V 1055-5B105M35
C9
CAP.,
SM,
1.0uF
TANT., 20%, 16V 1055-5A105M16
C10
CAP.,
SM,
10nF
CER,0805,X7R,50V
1008-4A103K5R
C11,
C12
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
C13
CAP.,
SM,
1.0uF
TANT., 20%, 16V 1055-5A105M16
C14,
C15
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
C16
CAP.,
SM,
1nF
CER,0805,X7R,50V
1008-3A102K5R
C17
CAP.,
SM,
1.0uF
TANT., 20%, 16V 1055-5A105M16
C18,
C19
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
C20
CAP.,
SM,
1.0uF
TANT., 20%, 16V 1055-5A105M16
C21
CAP.,
SM,
10uF TANT., 20%, 35V 1055-6D106K35
C22
CAP.,
SM,
1.0uF
TANT., 20%, 35V 1055-5B105M35
D1, D2 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D3, D4 DIODE, BYD17J
RECTIFIER,SOD87
2101-BYD17J00
D9 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
J2
CONN.,
SMB,
JACK,PC
MNT,STRHT.
5122-J20S00BG
J3,
J4 HEADER, 2x10,
.050",
R/A,
Au 5028-GH127E10
J5 HEADER,
SM,2x10,.050",DV,W/PIN
5028-GH127F10
J7 PLUG,
SM,15
CCT,1.00mm,BRD-BRD
5028-DP100S15
J8 PLUG,
SM,
9
CCT,1.00mm,BRD-BRD
5028-DP100S09
J9
JACK,
DUAL
RJ45,8POS,PCB,SHLD.
5047-2RJ45JGS
J11 HEADER, 2x10,
.050",
R/A,
Au 5028-GH127E10
J12
SOCKET,
SM,2x15,.050",VERT.,Au
5028-KS127A15
LED1 LED, GREEN, BILEVEL, RA
PC
MNT 2017-091N12GN
LPF1
FILTER,
SM,
EM1/LPF,
360pF,FER
1306-T361F2D5
LPF2
FILTER,
SM,
EM1/LPF,
360pF,FER
1306-T361F2D5
LPF3
FILTER,
SM,
EM1/LPF,
360pF,FER
1306-T361F2D5
LPF4
FILTER,
SM,
EM1/LPF,
360pF,FER
1306-T361F2D5
LPF5
FILTER,
SM,
EM1/L
PF,
360pF,FER
1306-T361F2D5
LPF6
FILTER,
SM,
EM1/LPF,
360pF,FER
1306-T361F2D5
LPF7
FILTER,
SM,
EM1/LPF,
360pF,FER
1306-T361F2D5
LPF8
FILTER,
SM,
EM1/LPF,
360pF,FER
1306-T361F2D5
LPF9
FILTER,
SM,
EM1/LPF,
360pF,FER
1306-T361F2D5
LPF10
FILTER,
SM,
EM1/LPF,
360pF,FER
1306-T361F2D5