[Milsurplus] Freetime

[Brian Goldsmith]

Dave Stinson asked about WWVH BCD modulation,the following is from the WWVH website:-
Modulation
The signals broadcast by WWVH use double sideband amplitude modulation. The modulation level is 50 percent for the steady tones, 50 percent for the BCD time code, 100 percent for the second pulses and the minute and hour markers, and 75 percent for the voice announcements.

Brian g

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