From: Roman <rw3adb@yandex.ru>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <1615191474.2898208.1549314515047@mail.yahoo.com>
References: <1615191474.2898208.1549314515047.ref@mail.yahoo.com> <1615191474.2898208.1549314515047@mail.yahoo.com>
MIME-Version: 1.0
Date: Tue, 05 Feb 2019 00:27:59 +0300
Message-Id: <14035761549315679@iva1-a2ffb02749cf.qloud-c.yandex.net>
Subject: Re: LF: Naive WSPR15 question
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset=utf-8
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org

Hello, Genossen Lfers!

RN3AUS DDS generate WSPR-15, but own forum in fault up to now((
Email him personaly if you want - rn3aus@mail.ru

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 <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.
>>>
>>
-- 
73!
Roman, RW3ADB