Honeywell KMA28 operation manual Intercom System, IntelliVox VOX-Squelch

Bendix/King

KMA28

Audio Amplifier/Intercom/Marker Beacon Receiver

headphones on the cellphone. The pilot PTT will switch the pilot mic to the COM 1, and allow continued aircraft communications as well.

NOTE: Placing the mic selector switch in the TEL position will disable pilot and copilot intercom, as the intercom circuit is transferred to the telephone use. In crew or ISO mode, placing the switch in TEL mode removes the passengers access to the telephone.

If interface is desired with another type of wireless telecommunications unit, the aircraft owner can purchase an after-market interface cable. By Federal Communications Com- mission (FCC) regulations, these can only be used on the ground in the United States.

Interface cables are available for specific telephones. The following is a partial list of possible interface cables. These must be purchased separately, and are not for sale from Honeywell.

Compatible Phones

Audiovox Series 5

Motorola TeleTAC, DPC 550, DPC65-, Lite Series, Profile Series

Motorola Elite, M70, M75, SC-725

Motorola Bag Phones, Mobiles

NEC100 Series, 110, 120, 180, Sport

NEC 700 & 800 Series

OKI 900/910, AT&T 3730/3710

OKI 1150/1145, AT&T 3760

Fujitsu PCX

Mitsubishi 4000, DiamondTel 22X/20X/18X

NEC960

NEC DT2000 Digital Phone

NOTE:

Unauthorized use of cellular telephone devices in aircraft is subject to FCC enforcement action, which may include a $10,000 fine per incident. Honeywell , Inc. does not endorse using unapproved cellular telephone equipment in flight, and takes no responsibility for the user’s action.

3.4Intercom System

3.4.1 IntelliVox® VOX-Squelch

No adjustment of the IntelliVox® squelch control is necessary. Through three individual signal processors, the ambient noise appearing in all six microphones is constantly being sampled. Non voice signals are blocked. When someone speaks, only their microphone circuit opens, allowing him or her to communicate on the intercom.

The system is designed to block continuous tones; therefore people humming or whistling in monotone may be blocked after a few moments.

For best performance, the headset microphone must be placed within ¼ inch of your lips, preferably against them. It is also a good idea to keep the microphone out of a direct wind

006-10565-0000 3-4 Rev. 0, Sept. 00