Garmin g1000 mooney vhfnav com pilots guide m20 Manuale Utente
Garmin G1000 VHF NAV/COM Pilot’s Guide for Mooney M20M & M20R
190-00445-01 Rev. A
4-7
OPERATION – COM
RADIO STATUS
When a COM radio is keyed, a white TX indication ap-
pears to the right of the active COM frequency to indicate
transmission.
transmission.
When a COM signal is received, a white RX indication
appears to the right of the active COM frequency to indi-
cate signal reception.
cate signal reception.
Figure 4.2.6 Radio Status Indications
NOTE: When transmitting or receiving, the
Frequency Transfer Arrow disappears and is
replaced by a white TX or RX indication.
replaced by a white TX or RX indication.
EMERGENCY FREQUENCY (121.500 MHZ)
In case of a COM system tuning failure, the emergency
frequency (121.500 MHz) is automatically loaded in the
active frequency field of the radio in which the tuning fail-
ure was detected.
active frequency field of the radio in which the tuning fail-
ure was detected.
Figure 4.2.7 COM Tuning Failure
NOTE: In case of a dual display failure, the emer-
gency frequency (121.500 MHz) is automatically
placed in the active field of the active COM
radio.
gency frequency (121.500 MHz) is automatically
placed in the active field of the active COM
radio.
Quick-Tuning and Activating 121.500 MHz
Pressing and holding the COM Frequency Transfer
key for two seconds automatically loads the emergency
COM frequency (121.500 MHz) in the active field of the
active COM radio (the one with the transfer arrow).
COM frequency (121.500 MHz) in the active field of the
active COM radio (the one with the transfer arrow).
Figure 4.2.8 Quickly Tuning 121.500 MHz
STUCK MICROPHONE
If the COM1 or COM2 push-to-talk (PTT) switch be-
comes stuck, the COM transmitter times out after 35 sec-
onds of continuous transmitting. An alert appears on the
PFD to advise the crew of a stuck microphone.
onds of continuous transmitting. An alert appears on the
PFD to advise the crew of a stuck microphone.
Figure 4.2.9 Stuck Microphone Alert