BARRETT 900 SERIES TRANSCEIVERS
8.0
Internal options
8.1
Internal scrambler option
P/N BCA90031 - available for 940 and 950 transceivers
After removing the jumper JP1 on the RF/Audio PCB, solder the supplied PCB pins into test points
TP9,12,15, and TP24 on the RF/Audio PCB. The optional scrambler PCB is then fitted, the connector on the
scrambler PCB mating with the accessory connector P4 and the PCB pins fitted above mating with the
marked holes. Once in place make sure the scrambler PCB is level and solder the PCB pins to the scrambler
PCB. Note:- the PCB pins from TP9, 12, 15, and TP24 are only used to mechanically secure the scrambler
PCB and make no electrical connection.
The scrambler option is enabled in the setup menu within the transceiver or during programming. Once
enabled the scrambler can be turned off and on by holding down the key labelled "SCRAM". The scrambler
has five Dip switches marked A0, A1, A2, A3 and A4. These allow the scrambling code to be changed as
detailed in the table below. Ensure all transceivers in a net have the same code set to enable reception of
scrambled transmissions.
Note:- a zero means leave the solder link unsoldered, a one means solder the solder link.
Code Number
Address
Code Number
Address
A - A
A - A
4
0
4
0
0
00000
16
10000
1
00001
17
10001
2
00010
18
10010
3
00011
19
10011
4
00100
20
10100
5
00101
21
10101
6
00110
22
10110
7
00111
23
10111
8
01000
24
11000
9
01001
25
11001
10
01010
26
11010
11
01011
27
11011
12
01100
28
11100
13
01101
29
11101
14
01110
30
11110
15
01111
31
11111
PAGE 46
Содержание 900 Series
Страница 58: ...BARRETT 900 SERIES TRANSCEIVERS RF Audio PCB overlay showing optional narrow filter components PAGE 58 ...
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Страница 72: ...BARRETT 900 SERIES TRANSCEIVERS Microprocessor PCB overlay showing TCXO PAGE 72 ...
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Страница 87: ...BARRETT 900 SERIES TRANSCEIVERS PA PCB overlay PAGE 87 ...
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Страница 89: ...BARRETT 900 SERIES TRANSCEIVERS PA schematic See File PA SCHEMATIC pdf PAGE 89 ...
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Страница 99: ...BARRETT 900 SERIES TRANSCEIVERS Front panel PCB overlay PAGE 99 ...
Страница 100: ...BARRETT 900 SERIES TRANSCEIVERS PAGE 100 Front Panel Schematic 900 Front Panel Schematic Drawing No 900516A1 ...
Страница 103: ...BARRETT 900 SERIES TRANSCEIVERS Remote Control Head PCB overlay PAGE 103 ...
Страница 108: ...BARRETT 900 SERIES TRANSCEIVERS Scrambler PCB overlay PAGE 108 ...
Страница 109: ...BARRETT 900 SERIES TRANSCEIVERS Scrambler Schematic PAGE 109 900 Scrambler Module Schematic 900D54A5 ...
Страница 111: ...BARRETT 900 SERIES TRANSCEIVERS GPS ALE Motherboard Overlay PAGE 111 ...
Страница 112: ...BARRETT 900 SERIES TRANSCEIVERS GPS ALE Motherboard Schematic PAGE 112 900 GPS ALE Schematic ...
Страница 114: ...BARRETT 900 SERIES TRANSCEIVERS 950MR Low Pass Filter Power PCB overlay PAGE 114 ...
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Страница 121: ...BARRETT 900 SERIES TRANSCEIVERS 980PSU DC DC Switch Mode Power Supply PCB Overlay PAGE 121 ...
Страница 133: ...BARRETT 900 SERIES TRANSCEIVERS 900 Hand Microphone Schematic PAGE 133 930 940 950 980 Hand Microphone Schematic ...
Страница 134: ...BARRETT 900 SERIES TRANSCEIVERS 900 Cloning Cable Schematic PAGE 134 930 950 980 Cloning Cable Schematic ...
Страница 139: ...940 Front Metalwork Connection PCB Overlay BARRETT 900 SERIES TRANSCEIVERS PAGE 139 ...
Страница 142: ...BARRETT 900 SERIES TRANSCEIVERS 940 Automatic Antenna Tuner PCB Overlay Barrett P N BCA94009 PAGE 142 ...
Страница 148: ...940 Tuner Front Panel PCB Overlay BARRETT 900 SERIES TRANSCEIVERS PAGE 148 ...
Страница 149: ...940 Tuner Front Panel PCB Schematic BARRETT 900 SERIES TRANSCEIVERS PAGE 149 ...
Страница 153: ...BARRETT 900 SERIES TRANSCEIVERS 940 Charge reg 13Ah 12V DC input PCB overlay Barrett P N BCA94021 PAGE 153 ...
Страница 163: ...BARRETT 900 SERIES TRANSCEIVERS PAGE 163 940 Programming Cable Schematic 940 Transceiver Programming Cable Schematic ...