Dear Steve,

I get no decodes with FT8 and r7775.

I tried to call CQ and I got an answer, but could not decode that either.
(The CQ was heard by multiple stations according to pskreporter.)

Five sample recordings are in a .zip under the following url:
https://www.dropbox.com/s/sgcfehcdwfrp7th/wsjtx-r7775-nodecode.zip?dl=1

Cheers,

Tamas HA5FTL


2017-07-02 13:58 GMT+02:00 Steven Franke <s.j.fra...@icloud.com>:

> For future reference, I’ve attached a plot summarizing the performance of
> the FT8 decoder in r7775. The 50% decoding threshold is at about -21 dB.
> These results pertain to an AWGN channel (no fading) and were obtained
> using .wav files generated by ft8sim. Each .wav file contains 25 signals. A
> total of 40 such files (1000 potential decodes) was analyzed at each SNR.
> The ft8sim DT parameter was set to 0.5s for this simulation.
>
> I should note that the idealized AWGN channel simulation used for this
> benchmark does not reflect the type of conditions that we typically see in
> real life on HF or 6m. This is mainly intended as a performance benchmark
> for development purposes - not an advertisement of actual performance in
> the real world!
>
> Steve k9an
>
>
>
>
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