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your VHF radio may not be working properly. Note the message on the screen
and pass that information to your avionics maintenance organisation. Press
the flip-flop button to clear the message.
The following warnings may be seen:
Radio Hot
The radio is overheating.
Stuck Mic
A PTT switch has been closed for more than 35 seconds and
the transmitter has stopped to avoid blocking the channel.
Low Voltage
The aircraft power input is below 10 volts (TY96) or 16 volts
(TY97).
Ant Fault
There is a problem with the aircraft antenna. The radio will
still try to transmit, but you may not be heard.
Transmit Fail
There is a problem with the transmitter and the radio gave
up trying. You may still be able to receive but not transmit.
Fault Annunciation
If the VHF radio detects a catastrophic internal failure, the screen will indicate
FAULT and a brief statement of the problem. Note the FAULT message at the
bottom of the screen and pass that information to your avionics maintenance
organisation. The fault may be cleared by re-cycling the power to the radio
but if the fault is still present the message will reappear.
