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950MR1
Barrett 950MR1 Manuals
Manuals and User Guides for Barrett 950MR1. We have
1
Barrett 950MR1 manual available for free PDF download: Technical Manual
Barrett 950MR1 Technical Manual (164 pages)
HF transceivers and receivers
Brand:
Barrett
| Category:
Transceiver
| Size: 4.42 MB
Table of Contents
Table of Contents
2
Specifications
5
General Specifications
5
Receiver Specifications
7
Transmitter Specifications
8
Introduction
9
Overview
11
Front Panel
11
Microprocessor PCB
11
Rf/Audio PCB
11
Pa Pcb
12
Remote Control Head
12
Front Panel
12
Connector Transition PCB
12
Technical Description
13
Microprocessor PCB
13
Power Supplies
13
Reference Oscillator (Standard)
13
Reference Oscillator (High Stability Option)
13
Microprocessor
13
DDFS and VCO
15
Selcall (if Enabled)
17
Audio Mute
17
PA ALC Control Voltage PWR ADJ
18
RF / Audio PCB
19
RF Section
19
Mhz Low Pass Filter, First Mixer and 45 Mhz if Amplifier
19
Second Mixer and Bandpass Crystal Filter
21
Noise Blanker
21
Noise Gate
21
Second IF, AGC and Demodulator
21
Transmit and Receive Switching
21
Audio Section
21
Audio Path
22
Pa Pcb
24
Gain Control Amp
24
Low Pass Filters
24
ALC Control
24
Over-Voltage and Reverse Voltage Protection
24
Auxiliary Antenna Socket
24
Receiver RF Amplifier
24
Power Supply Regulators
24
Front Panel
26
LCD and Status Led's
26
Keypad
26
Backlighting
26
Microphone
26
Volume Control and On/Off Switch
26
Remote Control Head
28
Maintenance
30
Introduction
30
Printed Circuit Board (PCB) Maintenance
30
Component Replacement
30
CMOS Devices
31
Transmitter Power Amplifier Maintenance Precautions
31
PCB Access
31
Transceivers
31
Remote Control Head
31
Fault Diagnosis
32
General
32
Transceiver will Not Power up
33
Transceiver will Not Receive but Displays OK
35
No Receiver Noise at All
35
Receive Noise Present, but Does Not Receive
35
Transceiver Turns on but Displays "Barrett 900 Transceiver" Only
35
Transceiver Turns On, Internal Voltages Are Normal, but no LCD Display
36
Main Microprocessor Faults
36
VCO Faults
37
Transmitter Faulty
37
Replacement of PA Output and Driver Transistors
38
Adjustments
40
Front Panel
40
Microprocessor PCB
40
Reference Oscillator Setup (Standard Oscillator)
40
Reference Oscillator Setup (High Stability Oscillator)
40
VCO Frequency Adjustment
40
Carrier Insertion Oscillator Peaking
40
VCO Low Pass Filter
40
DAC Low Pass Filter
41
RF/ Audio PCB
41
Input Low Pass Filter
41
45Mhz if Filter
41
IF Inductors
42
Noise Blanker Potentiometer
42
Carrier Rejection Potentiometer
42
Transmit Drive Level Set Potentiometer
42
455Khz if
42
Pa Pcb
42
Driver Bias Setup
42
PA Bias Setup
42
Power Level Adjustment
43
Programmable Links
43
Software Programming and Options
44
Barrett 930 Transceivers
44
Barrett 940 Transceivers
44
Barrett 950 Transceivers
44
Barrett 980 Transceivers
44
Internal Jumper Settings
45
Standard Jumpers Locations
45
Configuring Antenna Connectors
45
Internal Options
46
Internal Scrambler Option
46
Internal GPS Receiver Option
48
Internal ALE Option P/N BCA95001 and BCA95002
48
Features and Configurations Unique to Transceiver Models
49
Barrett 950 Transceivers Fitted with High Stability Option - P/N BC95001 and BC95003
49
Barrett 950M Transceiver Module - P/N BC95004
49
Barrett 950MR Receivers
49
Barrett 940 Man-Pack
50
Ancillary Components
50
To 240 VAC Input Charger Supply Barrett P/N BCA94012
50
Charge Regulator Suit 13Ah Nimh Battery 12V DC Input P/N BCA94021
50
Multiple-Use Distribution Unit Barrett P/N BCA94010
51
Automatic Antenna Tuner
51
Barrett 980 GMDSS Transceiver
52
Accessory Interface Unit - P/N BCA90016
53
Auxiliary Connector
54
Barrett 980 and Barrett 950 Transceivers
54
Barrett 930 Transceivers
55
Barrett 940 Manpack Transceivers
56
Circuit Diagrams, Overlays and Parts Lists
57
Active Component Outlines
57
Rf/Audio PCB Overlay
58
Rf/Audio Schematic
59
Rf/Audio Parts List - Showing Optional Narrow Filter Components
61
Microprocessor PCB Overlay
72
Microprocessor Schematic
73
Microprocessor Parts List
75
PA PCB Overlay
87
PA Schematic
89
PA Parts List
91
Front Panel PCB Overlay
99
Front Panel Schematic
100
Front Panel Parts List
101
Remote Control Head PCB Overlay
103
Remote Control Head Schematic
104
Remote Control Head Parts List
105
Scrambler PCB Overlay Barrett P/N BCA94031
108
Scrambler Schematic
109
Scrambler Parts List
110
GPS/ALE Motherboard Overlay
111
GPS/ALE Motherboard Schematic
112
GPS/ALE Motherboard Parts List
113
950MR Low Pass Filter/Power PCB Overlay
114
950MR Low Pass Filter/Power PCB Schematic
115
950MR Low Pass Filter/Power PCB Parts List
117
980PSU DC/DC Switch Mode Power Supply PCB Overlay
121
980PSU DC/DC Switch Mode Power Supply Schematic
122
980PSU DC/DC Switch Mode Power Supply Parts List
123
Series Final Assembly Parts Lists
125
Hand Microphone Schematic
133
Cloning Cable Schematic
134
Programming Cable Schematic
135
Chassis Explosion Diagram
136
Final Assembly Parts List
137
Connector Transition PCB Overlay
139
Connector Transition Schematic
140
Connector Transition Parts List
141
Automatic Antenna Tuner PCB Overlay
142
Automatic Antenna Tuner Schematic
143
Auto Tuner PCB Parts List
146
Automatic Antenna Tuner Final Assembly Parts List (Drab Olive, Periwinkle)
147
Tuner Front Panel PCB Overlay
148
Tuner Front Panel PCB Schematic
149
ATU Front Panel PCB Parts List
150
Multiple-Use Distribution Unit Schematic
151
Multiple-Use Distribution Unit Parts List
152
Battery Charger PCB Parts List
157
Transceiver Cloning Cable Schematic
160
Handset Lightweight Tactical Schematic
161
Transceiver MIC Schematic
162
Programming Cable Schematic
163
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