Questions tagged [psk31]

8 questions
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How long are the PSK31 preamble and postamble?

The PSK31 specification by ARRL specifies: There is a preamble at the start of each transmission and a postamble at the end. The preamble is an idle signal of continuous zeroes, corresponding to continuous phase reversals at the symbol rate of…
Phil Frost - W8II
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Transmission distance of PSK31 on various HF band

Would appreciate insight on efficiency of PSK31 on various HF band. Would 300 to 1000 km generally achievable if suitable band are chosen, according to day night and sun spot cycle using low power QRP and simple 3 meters vertical antenna? Please…
EEd
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