Re: [wsjt-devel] channel description

2018-02-20 Thread Don Goldston
Thanks for the response. It sounds as if your SW does the demod-remod-subtract algorithm when second pass decoding is enabled. Very nicely done to optimize local performance. Has anything been done to mine the locally created data at a global or regional level to create a statistical model of th

Re: [wsjt-devel] channel description

2018-02-19 Thread Steven Franke
Don, > It seems that by assuming a correct decode (and a time-invariant transmitter) > each user could store enough information (already supported by the SW) to > describe the channel statistics. I see hints that you are trying to provide > the capability to describe the transmitter, but what

[wsjt-devel] channel description

2018-02-15 Thread Don Goldston
I've looked a HF enough to know what a wry grin I will get with this question, but I'm willing to risk a few guffaws at my expense. It appears that FT8 (as one example) and WSJT-X are capable of at least somewhat defining the expected variability of the HF channel. Have you (the developers) mined