User Manual
Table Of Contents
- 1GENERAL
- 1.1Introduction
- 1.2Manual Organization
- 1.3UT-4B 406 - 470 MHz Transmitter Family Models
- 1.4Performance Specifications
- 1.4.1General
- 1.4.2Audio Specifications
- 1.4.3Physical Specifications
- 2THEORY OF OPERATION
- 2.1Transmitter Operation
- 2.2Transmitter Programming
- 2.2.1Transmitter Wide Options
- 2.2.1.1Disable Front Panel Led
- 2.2.1.2Secure Hardware Equipped
- 2.2.1.3Allow Emergency Transmissions
- 2.2.1.4Allow Radio Inhibit
- 2.2.1.5Allow Radio Check
- 2.2.1.6Enable Status
- 2.2.1.7Frequency Band
- 2.2.2Channel Wide Settings
- 2.2.2.1Frequency
- 2.2.2.2Voice/Signal Type
- 2.2.2.3Squelch Type
- 2.2.2.4CTCSS Tone
- 2.2.2.5Enable Reverse Burst
- 2.2.2.6DCS Code
- 2.2.2.7DCS Invert
- 2.2.2.8Enable Turn Off Code
- 2.2.2.9Transmitter Power
- 2.2.2.10Channel Bandwidth
- 2.2.2.11Deviation
- 2.2.2.12Time Out Timer
- 2.2.2.13Channel Status
- 2.2.2.14Transmitter Pre-emphasis
- 2.2.2.15NAC Transmitter Code
- 2.2.2.16NAC Transmitter
- 2.3Transmitter Programming using Motorola Radio Service Software
- 2.4Secure Communications
- 2.5Transmitter Assembly and Adjustment
- 2.5.1Controller Board Alignment
- 2.5.1.1Reference Oscillator Adjustment
- 2.5.1.2Transmitter Deviation Balance Adjustment
- 2.5.1.3Transmitter Deviation Limit Adjustment
- 2.5.2Amplifier Alignment
- 2.5.3Frequency Change
- 2.6Recommended Test Equipment List
- 2.7Repair Note
- 2.8Printed Circuitboard Numbering Convention
- 3ILLUSTRATIONS
- 3.1Digital Base Transmitter Front Panel
- 3.2Digital Base Transmitter Case - Exploded View
- 3.3Digital Base Transmitter Block Diagram
- 3.4Digital Base Transmitter Schematic Diagram
- 3.5Digital Base Transmitter Main Board Component Layout (Bottom)
- 3.6Digital Base Transmitter Main Board Component Layout (Top)
- 4PARTS LIST
- 4.1Base Transmitter Main Board Parts List
- 4.1.1Base Transmitter Main Board Electrical Parts List
- 4.1.2P25 Base Transmitter Mechanical Parts List
- 5REVISION HISTORY
DE
DANIELS
ELECTRONICS
UT-4B400 P25
Digital
UHF Base
Transmitter
Instruction
Manual
4-1
4 PARTS LIST
4.1
Base Transmitter Main Board Parts List
4.1.1
Base 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,
10uF TANT., 20%, 35V 1055-6D106K35
C4
CAP.,
SM,
1.0uF
TANT., 20%, 35V 1055-5B105M35
C5 CA
P.,
SM,
10nF
CER,0805,X7R,50V
1008-4A103K5R
C6
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
C7
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
C8
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
C9
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
C10
CAP.,
SM,
1.0uF
TANT., 20%, 16V 1055-5A105M16
C11
CAP.,
SM,
100nF
CER.,
0805,
X7R,
50V 1008-5A104K5R
C12
CAP.,
SM,
1.0uF
TANT., 20%, 16V 1055-5A105M16
C13
CAP.,
SM,
10nF
CER,0805,X7R,50V
1008-4A103K5R
C14
CAP.,
SM,
4.7uF
TANT., 10%, 16V 1
055-5B475K16
C15
CAP.,
SM,
10uF TANT., 20%, 35V 1055-6D106K35
C16
CAP.,
SM,
1.0uF
TANT., 20%, 35V 1055-5B105M35
C17
CAP.,
SM,
100nF
CER.,
1206, X7R 1008-5B104K5R
D1 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D2 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D3 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D4 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D5 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D6 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D7 DIODE, BYD17J
RECTIFIER,SOD87
2101-BYD17J00
D8 DIODE, BYD17J
RECTIFIER,SOD87
2101-BYD17J00
D9 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D10 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D11 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D12 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D13 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D14 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D15 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D16 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D17 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D18 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D19 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
D20 DIODE, BAS16 SWITCHING, SOT23 2100-BAS16000
J2
SOCKET,
2X2, 0.1” X
0.1”,
ST,
TH TBA
J4 JACK , 8-PIN JACK
PCB,
MNT, DUAL PORT TBA
J5 HEADER, 2X10, .050”X .050”
PITCH,
SM TBA
J6 HEADER, 2X10, .050”X .050”
PITCH,
SM,
RA TBA
J8 PLUG,
SM,15
CCT,1.00mm,BRD-BRD
5028-DP100S15
J9
SOCKET,
2X15, 0.025”
PITCH,
SM TBA