In a message dated 3/26/01 8:49:52 AM Eastern Standard Time,
[email protected] writes:
<< So if one would send a 'rude BPSK' signal (as is created with an XOR
gate) through a resonant LC-circuit you will get continuous phase shift at
the output. The phase shift time will depend on the Q of the LC-circuit....
(snip).... A side effect will be that there is also some AM created, but
this can be 'corrected' by an AGC amplifier (or just hard clipping, but this
might increase bandwidth too much). >>
Hard clipping will not increase bandwidth if one has indeed made the phase
shift continuous by that point in the circuit. In fact, it will be a
necessity. AGC could not be made fast enough to remove the amplitude
variations, and if they are not removed, a practical power amplifier
following the high-Q circuitry would tend to reintroduce extraneous sidebands.
73,
John
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