Telephone – Garmin GMA 240 User Manual

Page 9

190-00917-00 Rev. A

Garmin GMA 240 Pilot’s Guide

GMA 240 Audio Panel

Press the ICS Key to mute the music during intercom operation.

Press the PILOT ISO Key for Pilot or Crew isolation, depending on

configuration.

Mode

Pilot Hears

Copilot Hears

Passenger Hears

ALL
(PILOT ISO not
Selected)

Selected Radios,
Alerts, Telephone,
Pilot, Copilot,
Passengers, Music

Selected Radios,
Alerts, Telephone,
Copilot, Pilot,
Passengers, Music

Selected Radios,
Alerts, Telephone,
Pilot, Copilot,
Passengers, Music

PILOT (PILOT
ISO Selected)

Selected Radios,
Alerts, Telephone,
Pilot, Music*

Copilot,
Passengers,
Music

CREW (When
Crew Isolation
is configured
and PILOT ISO
is selected)

Selected Radios,
Alerts, Telephone,
Pilot, Copilot,
Music*

Selected Radios,
Alerts, Telephone,
Copilot, Pilot,
Music*

Passengers,
Music

*A configuration option can allow music for these positions.

ICS Isolation Modes & Telephone Distribution

TelePhONe

The GMA 240 provides a full-duplex telephone interface. Press the

TEL Key to activate telephone operation. When the telephone is active,
operation depends on the ICS mode. See the ICS Isolation Modes &
Telephone Distribution table. Telephone communication is much like using
the intercom, allowing both parties to talk at once.