Garmin G1000 Mooney M20TN - Manual (Page 87)

190-00647-00 Rev. A Garmin G1000 Pilot’s Guide for the Mooney M20M/M20R/M20TN 4-7
AUDIO PANEL AND CNS
TRANSMIT/RECEIVE INDICATIONS
During COM transmission, a white ‘TX’ appears by the active COM frequency replacing the Frequency
Transfer Arrow. On the Audio Panel, when the active COM is transmitting, the active transceiver COM MIC
Key Annunciator flashes approximately once per second.
During COM signal reception, a white ‘RX’ appears by the active COM frequency replacing the Frequency
Transfer Arrow.
Figure 4-4 COM Radio Transmit and Receive Indications
Annunciator
Flashes During
Transmission
Transmit and
Receive Indicators
STUCK MICROPHONE
If the push-to-talk (PTT) Key becomes stuck, the COM transmitter stops transmitting after 35 seconds of
continuous operation. An alert appears on the PFD to advise the crew of a stuck microphone.
The COM1 MIC or COM2 MIC Key Annunciator on the Audio Panel continues to flash as long as the PTT
Key remains stuck.
Figure 4-5 Stuck Microphone Alert