On Nov 25, 2013, at 7:02 PM, Bill Turner wrote:
> Never heard of MSK before.
Minimum Shift Keying.
45.45 baud MSK looks sufficiently enough like a waveshaped FSK signal with
22.725 Hz shift to be interoperable between them.
http://www.princeton.edu/~achaney/tmve/wiki100k/docs/Frequency-shift_keying.html
You and I made a QSO using 22.725 Hz shift a couple of years ago, for precisely
the the same reason -- to test narrow shifts -- right after the 60m band was
opened up for RTTY. But we'd made the QSO on 20m.
>From the error rate viewpoint, if you are going to use such a narrow shift, it
>is better to use true coherent MSK modulators and demodulator, with raised
>cosine filters.
73
Chen, W7AY
_______________________________________________
RTTY mailing list
RTTY@contesting.com
http://lists.contesting.com/mailman/listinfo/rtty
|