TM 5-6675-318-14
(g) Turn frequency display switch on for tuning.
NOTE
Frequency display switch should only be on during tuning.
Turning frequency display switch to on and then off may slightly shift
tuned frequency.
Readjust as necessary.
Allow about 30 minutes warm-up period to ensure exact and stable
frequency display.
(h) Turn tuning dial to tune in desired signal. Tune until tuning
indicator needle deflection indicates strongest signal reception.
NOTE
If you do not know exact frequency of any station, use any of standard
frequency signals broadcast by National Bureau of Standards Radio Station
WWV on 2.5, 5, 10 and 15 MHz.
If tuning indicator needle exceeds full scale because signals are too
strong, decrease radio receiver sensitivity to optimum tuning readout
l e v e l b y t u r n i n g R F g a i n c o n t r o l l e f t.
( i ) A d j u s t v o l u m e , b a s s , a n d t r e b l e c o n t r o l s t o d e s i r e d l e v e l .
(4) SSB and CW reception.
SSB corresponds to modulated wave in AM band DSB
s i g n a l .
Regarded as special type of AM wave, it has no carrier wave. Therefore,
special detection method is necessary.
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