LOS Operations (cont)

d. If frequencies have been stored, position function selector (10) to channel containing communication link

frequency, then press READ (14) push-button and verify frequency. If frequencies have not been stored, load

the frequency or use manual selection as per paragraph 2-8.

e. Set AM/FM switch (11) to position required for modulation mode of communication link.

f. Set SPEAKER/MODE switch (4) to PT ON position for use of speaker and handset or to PT OFF for use of

handset only

g. Set SQ control (6) fully CCW, adjust VOL control (19) until noise level is heard in handset or on speaker, then

slowly turn SQ control (6) CW until noise is not heard.

WARNING

When transmitting with the AN/URC-101 or AN/URC-104, maintain a distance of 16

inches from the antenna tip. When transmitting with the AN/URC-100, maintain a

distance of at least 4 inches from the antenna tip. Failure to do so may result in

RF burns or eye damage.

2-26