EXTFSK produces timing jitter that can make the signal harder to decode,
depending on many aspects of a given situation, such as weak signal
strength, QRM, QSB, QRN, etc. It works, just not as well as a proper
hardware UART solution.
Ed W0YK
Bill W6WRT wrote:
> I hadn't realized there was such a problem. I do have a more
> or less conventional PC with a pair of PCI boards with com
> ports so I don't use any USB to serial converters. May I ask
> how this timing problem manifests itself over the air? Poor
> weak signal reception? Or what?
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