Garmin g1000 beechcraftbaron58 g58 pilots guide Manuale Utente

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Garmin G1000 Pilot’s Guide for the Beechcraft 58/G58
190-00629-00  Rev. B
3-6
NAV/COM
3.2  COM OPERATION
FREQUENCY SPACING
The G1000 COM radios can tune either 25 kHz spacing 
(118.000 to 136.975 MHz) or 8.33 kHz spacing (118.000 
to  136.990  MHz)  for  760-channel  or  3040-channel 
configuration.
COM channel spacing is configured through the MFD 
on the System Setup Page of the AUX Page group.
AUTOMATIC SQUELCH
Automatic squelch quiets unwanted static noise when 
no audio signal is received, while still providing reasonable 
sensitivity to weak COM signals.  To disable auto squelch, 
press the VOL/PUSH SQ knob.
When  automatic  squelch  is  disabled,  COM  audio 
reception is always on.  Continuous static noise is heard 
over  the  speaker  and  phones,  and  an  RX  indication 
appears on the display.
Figure 3-11  Overriding Automatic Squelch
To  enable  automatic  squelch,  press  the  VOL/PUSH 
SQ knob again.
SELECTING A COM RADIO
The  desired  COM  radio  is  selected  by  pressing  the 
COM MIC keys on the audio panel.  When the COM MIC 
key is annunciated, the associated active COM frequency 
is displayed in green in the COM Frequency window.
Figure 3-12  Selecting a COM Radio
This COM radio is selected 
on the audio panel.
Top section of the 
audio panel
 
NOTE:  When PA mode is selected on the audio 
panel, the COM MIC annunciator is no longer lit 
and the active COM frequency changes to white, 
indicating that there is no COM activity.
 
NOTE:  Refer to the Audio Panel section for more 
details on transceiver selection.