Honeywell KMA28 operation manual Adjustments, Communications Antenna Installation Notes

Bendix/King

KMA28

Audio Amplifier/Intercom/Marker Beacon Receiver

2.6Adjustments

The KMA 28 is factory adjusted to accommodate the typical requirements for most air- craft configurations. There are five adjustments however, that will allow the installer to tailor the specific functions.

Marker Gain

CW- Reduce

Front of Unit

	MKR Low Sense		223
	CW Decrease Sens.
211	231	111	133

Speaker Volume

CW-Increase

Marker Audio

CW Decrease Volume

Passenger Volume

CCW Increases

KMA28 adjustment holes Not used

Figure 2-1- KMA 28 Adjustments

2.7Communications Antenna Installation Notes

For best results while in Split Mode, it is suggested that the one VHF communications antenna is located on top of the aircraft while the other communications antenna is in- stalled on the bottom. Any antenna relocation must be accomplished in accordance with AC 43.13-2A, aircraft manufacturers’ recommendations and FAA-approved technical data.

Warning:

Itisprobable that radio interference will occur in the split mode when the frequencies of the two aircraft radios are adjacent, and/or the antennas are physically close to- gether. Honeywell makes no expressed or implied warranties regarding the suitability of the KMA 28 in Split Mode.

2.8Wireless telecommunications interface

The KMA 28 has interface capability with units such as the AirCell units. It is the user’s responsibility to determine the appropriate legal use of the equiment, and provide the services.

Interface to the AirCell unit is through J1 (bottom) connector, pins 14 and N. Pin 14, la- beled cellphone ring, is connected to pin V of the 3100D J3 connector and pin N of J1 is

006-10565-0000 Page 2-7 Rev. 0, Sept. 2000