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

[Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>]

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