Application of Facsimile Set AN/TXC-1(*)

telephone handset or which may be coupled

of a front panel selector switch) and Rectifier

inductively to certain types of lines that have no

Power Unit PP-86(*)/TXC-1 (fig. 3) which

ringing or signaling circuits. An amplitude-

supplies operating power to the transceiver and

modulated (am.) 1,800-cycle carrier is transmitted

dust removal blower and operates from an

and received.

alternating-current (ac) source of 115 volts at 60

b. Radio Circuits. When used with radio com-

cycles per second (cps).

munication circuits, the facsimile transceiver can

4. Application of Facsimile Set AN/TXC-1(*)

be connected in several ways with auxiliary

equipment to produce different types of radio

Facsimile Set AN/TXC-1(*) may be used with

signals.

either wire or radio communication circuits.

(1) Subcarrier amplitude modulation (SCAM),

a. Wire Circuits. When used with wire lines,

When transmitting, the facsimile trans-

the facsimile transceiver can be connected directly

ceiver is connected to the microphone

to the line by one of several input and output

circuit of a conventional am radiotele-

terminals of various impedances and levels. The

phone transmitter to produce an am

transceiver also can be connected to the line

radio signal. When receiving, the out-

through a coupling coil, which may be coupled

put of a conventional am radio receiver

magnetically to the receiver of a conventional

Figure 2. Facsimile set AN/TXC-1D.