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Re: [wsjtgroup] Re: [Knightsqrss] Drifting signals not decoding

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  • coolgreenearth@gmail.com
    Hi Joe, Is there a linux/osx version in the works? tnx, mike
    Message 1 of 2 , Mar 30, 2008
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      Hi Joe,

      Is there a linux/osx version in the works?
      tnx, mike

      On Mar 30, 2008, at 5:18 PM, Joe Taylor wrote:

      > Dear QRSS Knights, WSJTGROUP members, and all,
      >
      > Several people have posted notes about WSPR signals that drift in
      > frequency or for some other reason do not decode.
      >
      > As you all know, the present WSPR was written in a big hurry. My goal
      > was to get something useful on the air, quickly, to see what interest
      > there might be.
      >
      > Obviously the interest is there; so my next goal will be to improve
      > the
      > decoder, add an optional automatic upload of decoded messages, and
      > polish the user interface.
      >
      > It's always better to have a stable signal, but moderate drift can be
      > handled in software. I have already saved several thousand 2-minute
      > files from my own listening over the past ten days. They will serve
      > very nicely for testing the next stage of optimization of the decoder.
      >
      > If you think that your own signals are not being decoded as often as
      > they should be, from what I have seen the two most likely reasons are:
      >
      > 1. your computer clock is off
      > 2. your frequency drifts during your transmission.
      >
      > Two or three people have reported to me that their Tx audio is
      > starting
      > 5-7 seconds late. I have not been able to reproduce this problem with
      > any of my computers, but it could be a third reason for decoding
      > failures.
      >
      > If there are problems I don't know about, please report them to me.
      >
      > -- 73, Joe, K1JT
      >
      >
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