01-12-2023, 09:30 AM
What's asymmetric modulation, as in the title of this thread?
(I've heard that some stations have varying carrier power, so that during quiet passages the power is reduced but the % modulation is raised to more fully modulate the reduced carrier, thus giving the same output from the receiver - AGC system assumed not to influence this of course!)
Yes I can remember VHF TV sound, it was as good as FM radio.
(I've heard that some stations have varying carrier power, so that during quiet passages the power is reduced but the % modulation is raised to more fully modulate the reduced carrier, thus giving the same output from the receiver - AGC system assumed not to influence this of course!)
(30-11-2023, 12:43 PM)ppppenguin Wrote: The audio BW of System A was over 10kHz and hence capable of better sound quality than ordinary radio broadcasting.
Yes I can remember VHF TV sound, it was as good as FM radio.
