I am transmitting a FSK signal on 433,941 ± 32 kHz at 19200 baud rate. From what I read I should be able to recover my signal with a a modem centered on my carrier and having a bandwidth of 32 × 2 + 19.2 kHz. So I have defined my modem carrier-centered with a 84kHz bandwidth:
but am getting this result:
which to me looks wonky because of no frequency changing throughout the signal (I made sure I am not transmitting only
0 or only
1). Was expecting to read back something like:
What am I missing?