Garmin’s new GMA 240 audio panel is here to rock the sport flying world. It is non-TSO’d so it’s priced really low. Yet, it includes an intercom and will support dual COMM, dual NAV, dual AUX receivers, and dual music audio inputs – plus up to three unswitched inputs for telephone ringers, altitude alerts, or other warning tones.
The GMA 240 shines when it comes to music support. Pilots can connect up to two dedicated music sources to the rear connector (e.g. XM music and CD player) and over-ride one of those sources at any time by plugging-in a device (e.g. MP3 player) into the 2.5 mm front jack. The music source’s volume can be increased or decreased with the GMA 240 by pulling out the copilot volume knob. With multiple music inputs, switching sources is easily controlled by the (♫1-2) button on the front bezel.
The 2.5 mm front jack also makes it easy for pilots to make and receive cell phone calls. It has a full-duplex telephone interface with intercom isolation capability. This feature allows private telephone calls by the pilot or multi-party calls with the crew and passengers.
User-friendly, intuitive front panel layout
Full duplex Telephone interface with configurable volume
Two differential, hi-fidelity stereo music source inputs
Front panel music volume control, source selection, and music on/off button
Dedicated controls for music muting by intercom and selected radios
Easy access Mini-Jack for media player, cellular phone, etc.
Four place intercom: pilot, copilot, two passengers
Two stereo headset amplifiers: one for pilot, one for copilot/passengers
Two selectable intercom operational modes
Independent pilot, copilot/passenger intercom volume and squelch controls
Individual VOX circuits for each of four (4) mic inputs
Automatic selection COMM audio source when corresponding mic is selected
Memory of explicitly selected COMM audio source(s) when changing COMM mic selection
MASQ™ Processing with configurable mute threshold
Configurable alert volumes
Power-off fail-safe to connect
Pilot PTT, mic, and Headset to
COMM 1 if unit is turned off
Does not have marker beacon indicator
Physical & Performance
Physical dimensions 6.29"W x 1.3"H x 7.12"D (16 x 3.3 x 18.1 cm)
Weight 15.5 oz (440 g)
Telephone interface Dedicated full-duplex telephone interface. Input available at rear pins and front jack.
ICS (intercom system) 4 position intercom (pilot, copilot, 2 passengers)
Is the mounting tray included for the GMA 240?
Yes, unit, mounting tray and connector kit.
Does the Pilot Isolate function on this isolate the passengers from the Music as well or just from the radios?
Per Garmin, depending on the wiring configuration set up, you can set the GMA 240 to isolate the music or keep it on with the isolation function.