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Bendix/King
KMA28
Audio Amplifier/Intercom/Marker Beacon Receiver
006-10565-0000 Page 1-4 Rev. 0, Sept. 2000
Intercom Specifications
Intercom Positions: 6 places (with individual IntelliVOX® circuits)
Music Inputs: 2 (Stereo)
Music Muting: >-30 dB "Soft Mute" when Com or intercom active.
Distortion:
<1% THD @ 38 mW into 150Ω
<10% THD @ 70mW into 150 Ω
Mic Freq. Response, 3 dB: 300 Hz - 6000 Hz
Music Freq. Response, 3 dB: 100 Hz - 18kHz
MARKER BEACON RECEIVER
Frequency: 75 MHz Crystal Controlled
Sensitivity:
Low:
High:
Capable of:
1000 µVolts (Hard)
200 µVolts (Hard)
(preset at factory for field application)
Selectivity: -6 dB at ±10 kHz
-40 dB at ±120 kHz
External Lamp Output: 9.0 (±2.5 unloaded, at maximum brightness) VDC posi-
tive when active, max. current 125 mA
MM Sense: Active high (4.7 VDC ± 0.5V) during Middle Marker
acquisition, for autopilot use.
1.6 EQUIPMENT SUPPLIED
1 ea. of the following:
Model Part Number
KMA 28 066-01176-0101
KMA 28 Installation Kit, 050-03613-0001, contains the following parts.
Description Quantity Part
Number
KMA28 install rack 1 071-00164-0001
Top Molex Connector Shell w/key, 44 pin, key 4/5 1 120-425-4402
Bottom Molex Connector Shell w/key, 44 pin, key 7/8 1 120-425-4400
Gold Plated Crimp Pins 88 425-001-0002
4 40 X 7/16 screw w/nyl patch 4 475-440-0007
Grounding strap 1 430-007-0001
6-32 X 3/4 screw php 2 475-632-0038
6-32 Nut Flat 2 475-632-0003
6-32 Lock Nut 2 475-632-0004
Cable Clamp 1 625-001-0002
#6-32 x ½” FHP screw 6 475-632-0012
#6-32 Clip Nut 6 475-630-0002
The KMA 28 install rack may be purchased separately under part number 071-00164-0001.