Specifications

PS Engineering
PMA7000M-S Series Audio Selector Panel and Intercom System
Civil Air Patrol Version Installation and Operator’s Manual
200-072-0004 Page 1-4 Rev. 4, 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: PMA7000M-S only
Frequency: 75 MHz Crystal Controlled
Sensitivity:
Low:
High:
Capable of: (preset at factory for field application)
1000 µVolts (Hard)
200 µVolts (Hard)
Selectivity: -6 dB at ±10 kHz
-40 dB at ±120 kHz
External Lamp Output: 9.0 (±1.5 at maximum brightness, unloaded) VDC positive
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 units:
Model Part Number
PMA7000S Special CAP version 7000S- CAP
PMA7000M-S Special CAP version with Marker Beacon Receiver 7000M-S- CAP
PMA7000M-S Installation Kit: 250-007-002
Part Number Description Quantity
120-430-0420 Tray Assembly 1
120-425-4400 Bottom connector, key between 7/8 1
120-425-4402 Top connector (Stereo), key between 5 1
655-000-0001 Gold Plated Crimp Pins 88
200-072-0004 Operator's and Installation Manual (CAP) 1
475-440-0007 #4 x 40 screw w/nylon patch 4
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED
a) Circuit Breaker: 1 ea. 3 amp (28V)
b) Speaker, 4 Ω
c) Stereo Headphone Jacks (as required)
d) Microphone Jacks (as required)
e) Stereo Headphones, 150 Ω, up to 6 as required
f) Microphones, up to 6 as required
g) Marker Antenna (75 MHz, VSWR <1:1.5, and appropriate for the airspeed)
h) Interconnect Wiring
1.8 LICENSE REQUIREMENTS
None