Honeywell King KMA 24 Audio Panel

Part No.	PHOTO	Description	CART	Price
HW KMA0024-03	PHOTO	KMA 24 Audio Panel with Marker Beacon	ADD	$1515.00
HW KMA24H-70		KMA 24 Audio Panel with 4 station vox intercom	CALL	CALL

Compact TSO'd console makes audio control "push button simple"

Push button simplicity puts complete, flexible audio control right at your fingertips with Bendix/King's easy-to-use KMA 24.

The KMA 24 is self-contained, all solid-state and stands only 1.3 inches high in your Silver Crown stack. The "slant top" package tailors it for the top slot in your instrument panel.

The KMA 24 controls as many as three transceivers and six receivers, including the internal marker beacon receiver and its automatically dimmed 3-light presentation.

The KMA 24 provides transceiver and receiver outputs to speaker or headphones or both. A separate isolation amplifier for headphones maintains constant, noise-free volume levels, even when several receivers are monitored at once. Keying a mike mutes all receivers automatically to eliminate feedback.

Audio Control with The KMA 24

Two rows of alternate-action push buttons on the KMA 24 console control all receiver audio distribution functions.

The top row of push buttons selects receivers for the cockpit speaker, the bottom row for headphones. Both rows are completely independent of each other, allowing selection of speaker or headphones, or both, for all combinations of receivers.

The rotary selector switch on the right side of the console connects the microphone to either COMM 1 or COMM 2. An additional switch position allows section of radiotelephone on some KMA 24 models. Other switch positions are for cabin address and ramp hailer.

Turning the microphone selector switch to OFF cuts power to the speaker amplifier and the marker beacon receiver. The headphone amplifier remains in operation.

The AUTO feature, when engaged, automatically matches the corresponding receiver audio with the selected transmitter, such as COMM 1, COMM 2, TEL or HF transmitter

The unit operates on either 13.75 volts or 27.5 volts without the use of adapters or converters.

Built-In Marker Beacon

The KMA 24 has a built-in, crystal controlled, superheterodyne marker beacon receiver with a three-light display. Its excellent selectivity eliminates interference from FM radio and TV stations. Dimming circuitry automatically adjusts the brightness of the lamps to a level appropriate for ambient cockpit light.

The lower push button ext to the marker lamps selects high and low sensitivity; the upper push button test the lights.

The unit can also drive remote marker beacon lights, such as those in Bendix/;King Autopilot Annunciator Panels or the KA 40 Remote Marker Light display.

"Auto" Receiver Audio Select

For KMA 24 models equipped with the "AUTO" receiver Audio select feature, the transmitter selected with the microphone selector switch will be matched automatically with the appropriate COMM receiver audio on either headphone or speaker, or both, by simply pressing the desired headphone and/or speaker "AUTO" push button. (COMM 1 and COMM 2 pushbuttons should be disengaged unless it is desired to additionally listen to a COMM receiver other than the one selected with microphone selector switch.)

Thus, on "AUTO" you may change the rotary microphone switch back and forth, as needed, without having to reselect the corresponding COMM, TEL, or HF receiver buttons in order to hear the receiver.

Marker Beacon Receiver

The complete TSO'd 3-light marker beacon receiver built into the KMA 24 give you an accurate visual and aural signal when you pass over a 75 MHz beacon. The blue, amber, and white lights on the faceplate - as well as the audio tone - identify the beacon type (outer, middle or airway/inner marker).

Either the speaker or headphone MKR buttons or both must be "in" for the marker beacon receiver to provide an audio signal at beacon passage.

The horizontal push button labeled SENS on the lower left side of the console gives you the choice of two receiver sensitivities. When the button is "in", the sensitivity is on HI. During an approach, this setting should permit you to hear the outer marker tone about one mile out. At this point you may select LO to dampen the tone. It will start to sound again when you are closer to the marker, giving you a more precise indication of its location.

Pressing the top horizontal button marked "TST" simply applied voltage to all three lamps to show that they are functioning.

Note: The TST button should not be pressed to test the lamps when autopilot coupled on an ILS approach inside the outer marker. This is due to the fact that some autopilots (including Bendix/King autopilots) use the marker annunciation to change the sensitivity of the autopilot.

A photocell in the console automatically dims the lamps for night operation.

The "INT" position on the KMA 24 permit the flight crew to address the cabin occupants over the cabin speaker. To do this, select "INT" with the microphone switch. When the mike is keyed, the receiver audio is muted and you may talk normally into the microphone to broadcast over the speaker.

The KMA 24 has and "EXT" position on the microphone selector switch which connects the microphone to an external ramp hailer speaker, if installed.

Specifications:

TSO Compliance:
Marker Beacon Receiver: TSO C35d, Class A
Env. Cat. A1D1/A/KKS/XXXXXXZBAAA
Audio Amplifier: TSO C50b

Weight: 1.7 lb. (0.77kg)

Physical Dimension:
Length behind panel: 6.8 in. (17.30 cm)
Width: 6.25 in. (15.88 cm)
Height: 1.3 in. (3.30 cm)

Duty Cycle: Continuous

Marker Beacon Receiver:
Frequency: Crystal-controlled at 75 MHz
Sensitivity: LO 1,00 uv Hard; HI 200uv Hard
Selectivity: 6 db at +/- 10 kHz Min.; 40 db at +/- 200 kHz Max.
Input Impedance: 50 ohms
Output: Capable of 4 mw into isolation amplifier impedance of 500 ohms.

Honeywell Bendix King Silver Crown

Drawing upon a tradition of leadership in avionics technology, Honeywell combines reliability with value in the Honeywell King Silver Crown series. Utilizing rock solid designs, this equipment will give you years of reliability and service. Honeywell King offers so many choices, from basic VFR to the most highly advanced IFR capabilities. The ongoing after-sale service and support program is every bit as sophisticated, dependable and thoughtfully conceived as the avionics themselves. With over 1,000 authorized Honeywell King Sales and Service Centers worldwide you will find qualified technical support and service no matter where you travel. For installation information please call for pricing.

Honeywell does allow mail-order sales of certain new Bendix King Silver Crown with prewired harness.

For Bendix King Silver Crown installation in the Northwest, please contact our Avionics Sales Staff for an installed quote.

No mail-order restrictions on Factory reconditioned units.

All New Bendix King Avionics carry a 24 month warranty.