NORTHROP GRUMMAN T6MC, User Documentation

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Park Air T6MC Controller Page 2-3 Specification
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Circuit Properties
Incoming Circuits
Sensitivity Adjustable from 0 dBm to -30 dBm. Incorporates AGC and mute
circuits for automatic compensation of line loss.
Output Loudspeaker 1 W. Headset suitable for 200/600 ohm impedance.
Outgoing Circuits
Audio level -13 dBm or 0 dBm selectable.
AGC 30 dB dynamic range on microphone input.
Frequency response 300 to 3400 Hz, +1/-3 dB ref 1000 Hz. Output level falls by at least
12 dB/octave above 3400 Hz.
Controller Interface
2-wire 600 ohm balanced line pair.
4-wire 600 ohm balanced line pairs.
Maximum loop resistance 1500 ohms.
Tx keying method Phantom keying via line transformer centre-tap.
Alternative keying method External PTT (0 V discrete signal).
Optional Connections to an External Tape Recorder
Tape recorder Transmit/receive single-ended audio connection at a maximum level
of 6 V peak-to-peak.