[Lf] FSK Benchmarks

[Bill Farmer]

Gentlemen,

    In pursuit of improved LF/VLF measurement capabilities with the hope
of getting a little closer to ground truth, I'd appreciate knowing what
others are hearing and measuring on the FSK signals heard on the
following freqs:

73.6 kHz, 133.15, 135.95 kHz

    My measurements are:

73.6 kHz    75 BPS    75 Hz Shift
133.15 kHz    75 BPS    75 Hz Shift
135.95 kHz    50 BPS    50 Hz Shift

Thanks,
Bill Farmer  W3CSW
Rockville, Maryland