A Modest Proposal to Save Five-Level Code

#10

March 30th 17, 05:31 PM posted to rec.radio.amateur.digital.misc

Rob[_8_]

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A Modest Proposal to Save Five-Level Code

Gareth's Downstairs Computer wrote:
On 30/03/2017 15:01, Rob wrote:

5-level codes are typically used with FSK or AFSK modulation so there
is a lot of efficiency to be gained by implementing a more efficient
modulation method. When doing that, you can do some compression as well.

GMSK?

No, not by far. Typical RTTY is sent with 170Hz shift FSK at a rate
of 50 baud, so well above GMSK.

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