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Transmission (COM Band)
To transmit, press and hold
the PTT switch. Speak into
the microphone area of the
front panel grille in a normal
voice level.
The “ ” icon, which
indicates that the FTA-850L
are in the transmit mode,
appears on the display.
To return to the receive mode, release the PTT
switch.
Operating Advice: Use of Internal Microphone
Your FTA- 850L are sealed
against water ingress, which
includes waterproof seals
around the microphone and
speaker enclosure. This re-
quires that you focus your
speech in the direction of the
microphone’s location, so as to
ensure sucient voice input to
the radio. Refer to the illustra-
tion and observe the location of
the internal microphone.
If you nd it dicult to utilize the FTA- 850L conve-
niently and safely while speaking directly into the
microphone, we recommend the use of the SSM-20A
Speaker/Microphone (option), the SSM-BT10 Blue-
tooth
®
Headset (option), or an aftermarket aviation
headset with boom microphone.
Operation Bands
When the FTA-850L are turned on for the rst time,
it enters the COMM mode and displays the COM
band screen. The COMM mode is the basic opera-
tion mode of the FTA- 850L that allows you to tune
through either of the NAV and COM bands using the
DIAL knob or the keypad.
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