Hello, Genossen Lfers!
RN3AUS DDS generate WSPR-15, but own forum in fault up to now((
Email him personaly if you want - [email protected]
73!
Roman
> 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 <[email protected]>
> An: rsgb_lf_group <[email protected]>
> 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.
>>>
>>
--
73!
Roman, RW3ADB
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