Description:
Audio Panel System with Stereo

An outstanding panel isn't complete without an outstanding audio system – the premise behind the Bendix/King KMA 28, a complete system that combines an audio amplifier, six-station intercom and marker beacon receiver.

The KMA 28 is easy to read and operate. Positive-action buttons (with pilot-selectable key-click response) offer additional confidence. The KMA boasts an impressive feature set:

• Split-COM: allows the pilot to use the #1 radio to talk with air traffic control while the co-pilot uses the #2 radio to check on weather or arrange for a rental car
• Dual entertainment inputs let your passengers listen to something other than what you want to hear, and, when installed with a PA speaker, its public address capability gives you their undivided attention
• Swap mode: remote frequency management
• Background music with automatic muting when a signal is received on the COM
• Ability to interface with an approved airborne telephone
• Emergency mode circuitry that allows COM 1 to operate through the pilot's headphone/microphone if the power fails
• IntelliVox® automatic squelch control, with separate voice-activated squelch circuits for each microphone input to eliminate intercom squelch adjusting
• Convenience of 6 intercom stations
• Stereo entertainment outputs
• Self-contained marker beacon

Description:
The GMA 340 audio panel offers the latest in digital features to reduce cockpit workload and improve communication.

Operate with Ease
GMA 340 features convenient, LED-illuminated button controls for audio selection of both nav and com audio — as well as split comm capability for pilot and co-pilot. Large buttons activate the comm microphone and audios for up to three comm transceivers to simplify cockpit workload. Split comm allows the pilot to transmit/receive on Comm 1 and the co-pilot to transmit/receive on Comm 2.

Enjoy Host of FeaturesGMA 340 streamlines cockpit management. It provides MASQ processing, which reduces ambient noise from the avionics inputs, and it has special circuitry to de-emphasize cabin noise to enhance communication in the cockpit. You can select speakers to monitor the aircraft radios or make PA announcements. The 340 also provides comm transmit indication and the three-light Marker Beacon receiver/indicator with high or low sensitivity and SmartMute audio muting.

GMA 340 has two unswitched inputs for telephone ringers, altitude alert warnings or other warning tones, so you'll never miss an important incoming transmission. The 340 also includes a six-place VOX intercom with three modes of isolation, dual stereo music inputs and independent pilot, co-pilot and passenger volume control. In fact, each microphone input has a dedicated VOX circuit to ensure that only the active microphone is heard when squelch is broken.

Easy to install in the tightest aircraft spaces; operation is available in 14 or 28 volts without voltage converters or dropping resistors. Installation is simplified with the built-in intercom and marker beacon, and the GMA 340 also features photo cell dimming of annunciators, pilot fail-safe mode connection to Comm 1 and FAA TSO approval.

Description:
The GMA 347 audio panel adds a digital voice recorder, automatic squelch and full-duplex telephone interface to the GMA 340. These features streamline cockpit management, enhance flight safety and improve communications between flight crews, ground controllers and passengers.

Never Miss a Message
GMA 347’s digital voice recorder helps you manage the demands of a busy cockpit. The automatic voice recorder continuously captures the last two and one-half minutes of audio switched through the panel. So if you ever miss an assigned frequency or part of a clearance, simply press the “Play” button to recall the message for review.

Filter Static and Interference
GMA 347's automatic squelch option makes your entire audio experience quieter and clearer. This option filters out radio static and interference. Yet, for those situations when faint, far-off audio signals can be blanketed by ambient noise, the 347 offers manual squelch adjustment.

Make Private Phone Calls
In addition, GMA 347 has a full-duplex telephone interface with intercom isolation and disable capability. This feature allows private telephone calls by the pilot or copilot, or multi-party calls with crew and/or passengers. GMA 347 also comes with three more unmuted, unswitched inputs with individual volume control for additional audio capabilities

Operate with Ease
With convenient, LED-illuminated button controls for audio selection — as well as split comm capability for pilot and co-pilot, GMA 347 is easy to use. If the GMA 347 ever needs to be removed for service, a “configuration module” makes sure that previous audio settings are retained in the unit.

Description:
Northern Airborne Technology Ltd. (NAT) is a leading manufacturer of specialized aircraft communication equipment for Air Ambulance, Law Enforcement, SAR, EMS, Electronic News Gathering, Military and Marine applications.

Products include Audio Management Systems, FM Radios, Intercoms, PA & Loudhailers, Airborne Data Management Systems, Satellite Communication Systems, and Aural Warning Generators. OEMs such as Bell, Eurocopter, MD Helicopters, Raytheon and Rockwell have NAT products installed as standard equipment on numerous production aircraft.