PK-232 MBX – OPERATING MANUAL RADIO INSTALLATION
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NOTE: For Mode A (ARQ) AMTOR and Packet-Radio operation, the radio's
microphone gain control can be adjusted to produce the full-power
output plate current recommended by the radio manufacturer. These
modes are "bursty" modes; the transmitter is keyed on and off auto-
matically by the PK-232. The resulting duty cycle is much less than
100% and full power operation is generally acceptable.
15. With your radio in receive mode, tune the receiver to a clear, unoccupied frequency.
16. Set the receiver's audio volume control (AF GAIN) to the position you would nor-
mally use for CW reception. This is the approximate receiver audio output level for
best receive performance from your PK-232's modem.
17. Turn the PK-232's front-panel THRESHOLD control clockwise until the DCD LED is lit
by the noise output from your receiver, then slowly counterclockwise until the DCD
LED is no longer lit.
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