TM 11-6625-3053-14
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Set the ALC switch to ON while observing the red indicator light up.
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Turn the ALC set control until the meter needle is centered on the meter scale in the SET position.
Now, as you change frequency, the ATTENUATOR dial will read accurately at all levels of
f.
Internal Square Wave Modulation. Set the signal generator to the initial adjustments of para 2-4. Set
MODULATION switch to INTERNAL SQ WAVE position.
The output is now modulated by a square wave which can be varied in repetition rate from 950 to 1050 per second by
turning the SQ WAVE RATE control. Turn the control clockwise to increase the repetition rate.
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