ALTERNATE METHOD

TM 11-5805-387-10-2

Adjust SCOPE INTENSITY control to

obtain adequate display.

b. ALTERNATE METHOD

COARSE TUNE the signal as follows:

Set METER FUNCTION at

DISCRIMINATOR.

Tell sending station to send a series of teletypewriter test signals using

the following R-Y codes.

(1) R-Y.

(2) The quick brown fox jumped

over the lazy dog's back.

(3) Now is the time for all good

men to come to the aid of

their country.

Watch the modem meter. It will

indicate signal strength of mark

and space pulses.

Tune the receiver and modem BFO (850-Hz mode only) until the

meter registers in the DISCRIMINATOR scale during the entire

message. (Tune so that the indicator needle swings the maximum

range within the discriminator section of the meter. )

Set METER FUNCTION to DC LOOP NO. 1