AIRPLANE
OPERATIONS
MANUAL
NAVIGATION AND
COMMUNICATION
REVISION 31
2-18-11
Page
9
Code
01
During normal operation, the following annunciators may display:
COLOR MESSAGE MEANING
ERR HF radio is annunciating a fault.
RX INH HF reception with one system is inhibited
because the other system is transmitting
or has just finished a transmission.
SQ Squelch is opened with the SQ function
key (squelch test mode).
YELLOW TX INH One system is keyed, but the other
system was keyed first.
TX MIN HF is keyed and transmit power setting is
minimum.
TX MED HF is keyed and transmit power setting is
medium.
TX HF is keyed and transmit power setting is
maximum.
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