PRODUCT
INFORMATION
PAGE


KMA-20


FEATURES
  • Compact transistorized, flip-swtich audio control unit providing the functions of marker beacon receiver, isolation amplifier and audio control panel
  • Isolation amplifier makes possible the combining of all receiver audio inputs into a single cockpit speaker with 40db of isolation between each radio
  • Models with different features and combinations of marker light presentation, AUTO switch, COMM/NAV/ADF/HF/DME selections (see table below)
  • Models available with white or red lighting (see table below)
  • TSO'd
SPECIFICATIONS
Size: 6.2"W x 1.6"H x 6.293"L Weight: 2.3 lbs.
Design: All solid state, no moving parts Frequency (marker): Crystal-controlled at 75MHz
TSO Compliance (audio amp): TSO C50b Env. Category DACAAAX Inputs: Standard models accomodats 2 transceivers / 4 external receivers. Intl. model accomodates 3 transceivers / 4 external receivers.
Input Impedence: 500 ohms Input Isolation: 40db between input channels
Input Muting: Audio Muting is 40db or better when a transmitter is keyed Distortion: Less than 10% at rated output
Speaker Output (4 ohm): Rated power output is 6.25 watts at the 4 ohms speaker output. With a supply of 27.5vdc, output power capability increases to 8 watts Speaker Output (8ohm): Rated power output is 6.25 watts at the 8 ohms speaker output. With a supply of 27.5vdc, output power capability increases to 8 watts

KMA-20
Part Number Audio Panel Description
066-1024-03 Standard version with marker receiver/lights and lamp test
066-1024-04 International version with marker receiver/lights and lamp test
066-1024-05 International version with 2 ADF (no DME) selections, MKR and lamp test
066-1024-06 Beechcraft version without marker receiver/lights, with lamp test
066-1024-07 Beechcraft version with 2 ADF/no DME selections, no MKR, with lamp test
066-1024-08 Piper version with no DME, 1 ADF, COM1/COM2, 2 MIC selections only
066-1024-09 Piper version with no DME, 1 ADF, 4 position MIC select switch only
066-1024-10 Piper version w/ no DME, 1 ADF, 1 HF switch & pos. MIC select switch only
066-1024-11 Piper version w/ no DME, 2 ADF, No Auto, 5 position MIC select switch only
066-1024-12 Radio Telephone Version with AUTO and 4 position MIC select switch
066-1024-13 Piper version with 1 ADF, 4 position MIC select switch
066-1024-14 Piper version with 2 ADF, no DME, 4 position MIC select switch
066-1024-15 Standard version with red lighting and lamp test
066-1024-16 Standard version without marker beacon receiver and lights


kma20