Re:Turn Raspberry Pi’s GPIO into an FM Transmitter
by Johnythree on Sunday November 13, 2022 @02:26AM
(#33580853)
The problem with QPSK in particular is a loss of phase lock in marginal conditions, or with interference.
It would require higher complexity, with no improvement for marginal signals.
One possible improvement would be "Synchronous AM" (eg 1/2 of a QAM signal) but that will also lose phase lock in weak signal conditions, eg when it is most needed.
It would require higher complexity, with no improvement for marginal signals.
One possible improvement would be "Synchronous AM" (eg 1/2 of a QAM signal) but that will also lose phase lock in weak signal conditions, eg when it is most needed.