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RE: LF: Re: TXing WSPR on 630m on a Raspberry Pi, Stefan in QRP...

To: "[email protected]" <[email protected]>
Subject: RE: LF: Re: TXing WSPR on 630m on a Raspberry Pi, Stefan in QRP...
From: Rik Strobbe <[email protected]>
Date: Fri, 27 Mar 2015 13:43:28 +0000
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Thread-topic: LF: Re: TXing WSPR on 630m on a Raspberry Pi, Stefan in QRP...

Hi Stefan, all,

 

And i wrote an email to PE1NNZ and asked to a modification of the C-program to generate a signal with 4x higher FSK shift. Then it it would be possible to use that version for OMs having a divide-by-4 stage in their PA (to get a perfect 50% duty cycle and rectangular shape (after passing optocouplers etc)). This would be a safe way to drive my QRP PA, testwise of course...

I have written such a program for windows (actually you can set the devider ratio to any number between 1 and 100).
That way any HF TRX can be used to gerate a MF (or LF) WSPR signal with a simple CMOS ot TTL divider IC.
If anyone is interested just let me know ...
 
73, Rik  ON7YD - OR7T
 
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