Stefan,
Maybe it is worth approaching K1JT with a suggestion/request that a slower
version of WSPR be created?
It has been several years since WSPR was first released (2008) and there is a
lot of sense in a version with even better S/N performance. WSPR still has
better Internet database support than OPERA and is not "secret" in the way the
latter is.
73s
Roger G3XBM
-- Via my 2.4GHz transceiver --
On 11 Sep 2012, at 00:09, Stefan Schäfer
<[email protected]> wrote:
> It's a pity that there is no slow-WSPR, e.g. needing 32 minutes or so. If
> WSPR (2 minutes FSK) is about as efficient as OP8 ( i heared so), then it
> should be a real alternative to the slow DX modes on LF but not on MF!
>
> There is a software that plays recorded audio files in a faster mode, so that
> QRSS becomes audible. VE2IQ has reported to me last year about it but i don't
> remember the name.
>
> Would it be possible to make our own slow WSPR by using that software and
> playing a 32 minute manipulated WSPR at 16x speed, feeding it to the normal
> WSPR rx software? The slower code could be generated outside the program.
> Would that be a useful test or do i miss something?
>
> 73, Stefan/DK7FC
>
> Am 10.09.2012 19:26, schrieb Graham:
>> May be Mal
>>
>> But once again Jim has the answer to this problem ..if you can find
>> his articles after Google trashed the uk500khz news group ,
>>
>> I think Jose R predicts a 6 dB gain by changing to PSK from the
>> Opera on/off keying but that would prevent most of the LH/MF usage
>>
>> G..
>>
>
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