Garmin G1000H Marine Radio User Manual


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190-01255-00 Rev. B
Garmin G1000H
™
Pilot’s Guide for the Bell 407GX
130
AUDIO PANEL AND CNS
SPLIT COM
NOTE: Split COM performance is affected by the distance between the COM antennas and the separation
of the tuned frequencies. If the selected COM frequencies are too close together, interference may be heard
during transmission on the other radio.
DuringSplit COM operation, both the pilot and the copilot can transmit simultaneously over separate radios.
Thepilot canstillmonitorNAV1,NAV2,AUX, andMKRAudioas selected,butthe copilotisonlyable to
monitorthehighernumberedCOM(COM2orCOM3).
Selection of more than one MICKeyselectsSplitCOMoperation(usingCOM1/COM2,COM1/COM3,or
COM2/COM3).  The COM1/MIC1, COM2/MIC2, or COM3/MIC3 annunciators are illuminated indicating
Split COM operation. The selected COM frequencies are displayed in green indicating that both transceivers
are active. Split COM operation is cancelled by pressing one of the selected MIC Keys again.
When inSplit-COM mode, thepilot isusing the lowernumbered COM,the copilot isusing thehigher
numberedCOM.TheMIC1orMIC2(dependsonCOMsselectedforSplit-COM)Annunciatorasheswhen
the pilot’s microphone PTT is pressed.  The MIC2 or MIC3 (depends on COMs selected for Split-COM)
Annunciator flashes when the copilot’s microphone PTT is pressed.
COM2 Radio is Used
by the Copilot
Figure 4-45 Split COM Operation
COM1 Radio is Used
by the Pilot
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