BARRETT 900 SERIES TRANSCEIVERS
5.8.4.3 Power level adjustment
5.3.4.4 Programmable links
The high power adjust set pot, RV4 sets the power level at 100 W. In the case of the 940 only low power is
used and it is set between 10 W and 35 W. This should not be adjusted without access to a two-tone test
source and a peak reading watt meter. High intermodulation levels can occur if the potentiometers are
incorrectly set. Set frequency to 7MHz and SSB mode.
The only user selectable link on the PA PCB is normally left open. Where an auxiliary antenna socket is
fitted, the link can be inserted to obtain separate Tx/Rx sockets or separate socket routing depending upon
the channel programming.
(See Section 7.0 Internal Jumper Settings for details)
PAGE 43
Содержание 900 Series
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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 ...