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Date: Mon, 04 Feb 2019 21:09:24 +0100
From: DK7FC <selberdenken@posteo.de>
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Subject: Re: LF: Naive WSPR15 question
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...i checked some files from the slow_WSPR tool. I think i would be able 
to solve the problem. Maybe Markus likes to confirm that this could work 
(getting a factor 2 in the frequency shift)?
Chris, it would then be worth to try the normal tool first.

73, Stefan

Am 04.02.2019 20:25, schrieb DK7FC:
> Hello Chris,
>
> For a clever person it is very easy :-)
> It will depend on which way you want to generate WSPR.
> Here, for example, i have a Raspi which generates my WSPR (2) for MF. 
> I modified the c source code so that the frequency is 4 times higher 
> and the frequency shift is 4 times higher too. In my PA, probably like 
> in yours, there is a frequency divider using CD4013 ICs which 
> reproduce the desired frequency and frequency shift. Of course this 
> can be done with a factor 2 too.
> For Windows solutions, there is DF6NMs tool for slow WSPR which works 
> very reliable here, for WSPR-2 and WSPR-15. I'm sure this can be 
> modified for twice the frequency shift but then you will need an 
> upconverter to convert it to LF or MF...
>
> 73, Stefan
>
> Am 04.02.2019 13:21, schrieb Chris Wilson:
>>
>> Hello  LF,
>>
>>    A  naive  question  re  WSPR15  please?  Assuming the source code is
>>    available  how  hard  would  it  be  for  a  clever person to add X2
>>    functionality to it? Thanks.
>>
>