Chapter 3: Service & maintenance
54
Diagnostics & troubleshooting
TU: TX Inhib.
Transmission inhibited.
TX_INHIBIT switch is set or a
severe protection of the
transmitter has set in
TU: LO Error
Local Oscillator is not
within valid range.
LO PCB is defective
ATU: Not Tuned
ATU did not find a proper
matching to the antenna
resulting in less power
out.
Poor antenna connection
grounding etc.
ATU: No Tune
Power
Too little power present at
ATU to tune properly.
Too long antenna cable or too
much loss in the antenna cable
ATU: High U/I
High current or voltage
present at ATU causing
reduced power output.
Too short antenna and or feed
wire or poor matching by ATU
ATU: High Temp
High Temperature inside
ATU.
Prolonged transmission or bad
SWR match
ATU: Bad SWR
ATU measures SWR > 8.
Bad antenna installation
ATU: High SWR
ATU measures high SWR.
Bad antenna installation or
temporarily bad SWR due to
weather or sea etc.
ATU: No Comm.
ATU does not
communicate properly.
Very long antenna cable of
wrong dimension, if problem
persists. This can also occur
temporarily when turning on
the radio, until the ATU is ready.
Text in the display
Explanation
Possible cause(s)
Содержание Sailor 6300 MF/HF DSC
Страница 1: ...SAILOR 6300 MF HF DSC User manual 150W 150W FCC 250W 500W ...
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Страница 14: ...Table of contents xii Glossary 63 Index 65 ...
Страница 62: ...Chapter 2 Operation 48 Setup ...
Страница 76: ...Chapter 3 Service maintenance 62 Warranty and returning units for repair ...
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