Garmin GNC 255A Pilot's Guide

190-01182-01 Rev. E Garmin GNC 255A/255B Pilot’s Guide 3-13
Functions
3.4 ICS Configuration
ICS Configuration adjusts the intercom, sets the AUX audio, and turns the intercom
and speaker on or off.
3.4.1 Adjust Intercom
The Adjust Intercom function sets the values for the intercom squelch, intercom
volume, and sets the intercom audio to mute when COM transmissions are received.
The Intercom On/Off function must be set to ON to make the Adjust Intercom
function available.
NOTE
To enable ICS auto squelch, turn the knob one click counterclockwise past 0. When
squelch is set to auto, the squelch sensitivity adjusts automatically. When squelch is
set to 0, squelch is usually open. When squelch is set to 100, squelch is usually
closed. ICS auto squelch is available with software v2.10 or later.
Adjust Intercom Settings
1. Press FUNC.
2. Turn the outer knob to ICS CONFIGURATION.
3. Turn the inner knob to ADJUST INTRCOM.
4. Press ENT.
5. Turn the inner knob to set the ICS squelch (SQ).
6. Turn the outer knob to move to ICS volume (VOL) field.
7. Turn the inner knob to set the ICS volume level.
8. Turn outer knob to MUTE ON RX (software v2.10 or later).
9. Turn the inner knob to ON or OFF. To mute when a radio transmission is
received, select ON.
10. Press ENT to save changes.
Press CLR to cancel the changes.
Mute On RX
Intercom Squelch
Intercom Volume

Garmin GNC 255A Specifications

General

Brand	Garmin
Model	GNC 255A
Category	Transceiver
Language	English