TRANSMITTER CLOCK

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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