TM 11-7440-232-12/NAVELEX 0967-LP-275-5010
TRANSMITTER CLOCK
Transmitter Clock (P/N 900-44761-01) consists
of a printed circuit module which plugs into the modem
shelf. From the 4.8 MHz RF oscillator stable source, the
transmitter clock provides a 2400-Hz clock output used
by the digital data transmitter for all timing functions. It
also provides 2400, 1200, or 600-Hz clock output for
external timing applications.
One test point is located at the front of the
module for monitoring the clock output from the output
amplifier.
There are no controls on this printed circuit
card (PCC) module.
RECEIVER LINE FILTER
Receiver Line Filter (PIN 900-44753-01)
consists of a hermetically sealed filter case mounted on
a module card which plugs into a jack in the modem
shelf. The receiver line filter accepts the desired band
of received duobinary signals and shapes them for
application to the receive circuits of the digital data
modem.
There are no controls or test pinjacks on this
module.
ADJUSTABLE EQUALIZER
Adjustable Equalizer (PIN 900-44755-01)
consists of a PCC module which plugs into the modem
shelf. It equalizes delay and amplitude distortion at the
receiving modem.
The Equalizer has no operating controls or test
pin-jacks located on the front of the PCC module.
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