Causey Aviation | Avionics

AUDIO PANELS

Expert Workmanship, Competetive Pricing, Guaranteed Satisfaction

The Garmin GMA 340 features innovative LED-illuminated push button controls that allow audio selection of both NAV and Comm audio. Large buttons activate the Comm microphone and audios for up to three Comm transceivers to simplify cockpit workload. Another feature of the GMA 340 is the Split Comm, which allows the pilot to transmit/receive on Comm 1 and the co-pilot to transmit/receive on Comm 2. MASQ™ processing reduces ambient noise from the avionics inputs. Comm transmit indication is also provided. Speaker selection is available to monitor the aircraft radios or to make PA announcements. There are two unswitched inputs for telephone ringers, altitude alert warnings, or other warning tones. In addition, the GMA 340 includes a six-place VOX intercom with three selectable modes of isolation, dual stereo music inputs, and independent pilot, co-pilot, and passenger volume control. Each microphone input has a dedicated VOX circuit to ensure that only the active microphone is heard when squelch is broken. Special cabin noise de-emphasis circuitry enhances cockpit communications.

GMA 340

The PS Engineering PMA7000B selects the best feature set from both the PMA7000MS and PMA7000CD, creating a very versatile audio panel. Removing the rotary mic selector knob in favor of an all push button selector approach, the PMA7000B provides not only traditional capability of an audio panel, but now adds an interface for any hands free cellular telephone. The audio panel has concentric volume controls, one for Crew intercom volume and the other for passenger intercom volume. The PMA7000B retains the dual independent music sources.

The telecommunications distribution in the PMA7000B has also been improved by adding a full-duplex interface to aviation-standard impedance. This allows distribution of AirCell, Globalstar and Iridium conversations, providing private telephone calls by the pilot or copilot, or party line calls with the passengers and/or crew, using Com 3. The unit can easily be configured as either a Com 3 aviation or Com 3 AirCell interface at installation.

PMA 7000B

The Bendix/King KMA 28 is a complete system that combines an audio amplifier, six-station intercom and marker beacon receiver. The KMA 28 is easy to read and operate, particularly at night. Positive-action buttons (with pilot-selectable key-click response) offer a sense of confidence. The audio selection buttons incorporate LEDs to annunciate your selected audio sources, and the high-visibility marker beacon lights include outputs to drive external annunciators.

A ‘split-COM’ feature allows the pilot to use the number one radio to talk with air traffic control while the co-pilot uses the number two radio to check on the 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. There’s also a ‘Swap’ mode that provides remote radio frequency
management; a ‘background music’ mode with automatic muting when a signal is received on the COM; the ability to interface with an approved airborne telephone; and emergency mode circuitry that allows COM 1 to operate through the pilot’s headphone/microphone if the power fails.

KMA 28