Plessey PRC 320/1 - Page 34

22
1. CHECK BATTERY
Set to ВАТТ СНК and CW. Depress pressel/morse
key. Check meter needle registers on or above second
mark. (The first mark is zero). Release pressel. If
needle was below second mark, replace battery.
2. SELECT FREQUENCY
Set switches (shown set to
5.763 MHz) to required frequency
(stop at zero positions enables
frequency to be set by touch in
dark). Set FREQUENCY RANGE switch
(no stop fitted) to corresponding
frequency band. Tone heard in
headset/handset ceases when correct
band selected and frequency
stabilized.
5. TUNE ANTENNA TUNING UNIT (ATU)
Set to ANT. Set RANGE and LOAD switches to suit
antenna and frequency (see para.2.7). Depress
pressel/morse key and adjust TUNE control for maximum
reading. Adjust LOAD switch for maximum reading.
Selecting lower number position if two give same reading.
Re-adjust TUNE control for maximum reading and release
pressel.
Fig.6 Operating Information