R: Re: LF: Naive WSPR15 question - Radio Erivan

["marcocadeddu@tin.it" <marcocadeddu@tin.it>]

naaaaa I cant believe that you too remember it Markus!! :-)))

(I mean of course the reference to Radio Yerivan ;-)) )

have a nice day!

Marco IK1HSS

----Messaggio originale----
Da: markusvester@aol.com
Data: 4-feb-2019 22.08
A: <rsgb_lf_group@blacksheep.org>
Ogg: Re: LF: Naive WSPR15 question

Hi Stefan, Chris,

in principle yes… (R. Eriwan)

The old tools from 2012 are here 
http://df6nm.bplaced.net/wspr/slowWSPR.zip
But they used a homemade 16-bit-utility "waitraster" for timing, which is no longer supported by 64-bit Win-7 and Win 10. This can be replaced by simple DOS commands, which has so far been implemented for receiving WSPR-15
https://klubnl.pl/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00318.html
but not yet for transmitting. So a little more work will be needed.

On the other hand, I'm asking myself why so many people still insist on having dividers before their PA's. It only makes life more difficult, and undermines coherent EbNaut or Opera signal transmissions. 

Best 73,
Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: DK7FC <selberdenken@posteo.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Mo, 4. Feb. 2019 21:11
Betreff: Re: LF: Naive WSPR15 question

...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.
>>
>