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Re: LF: Re: WSPR-15

To: LF Group <[email protected]g>
Subject: Re: LF: Re: WSPR-15
From: Riccardo Zoli <[email protected]>
Date: Sun, 18 Nov 2018 22:38:15 +0100
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Hi LF,

Thanks Markus: with your last script, I'm uploading me too! And thanks Domenico for your brilliant solution!

All the best

73 de Riccardo IW4DXW




Il giorno Sab 17 Nov 2018, 23:34 Markus Vester <[email protected]> ha scritto:
DL0AO/15 in Amberg is also receiving and uploading now. Domenico's trick is superb!.

73, Markus

PS: The resolved collision at 19:30 happened between EA4GHB and IW4DXW, not IZ7SLZ.


-----Ursprüngliche Mitteilung-----
Von: Markus Vester <[email protected]>
An: rsgb_lf_group <rsgb_[email protected]>
Verschickt: Sa, 17. Nov. 2018 22:06
Betreff: Re: LF: Re: WSPR-15

The K9AN decoder from WSJT-X is really impressive. EA4GHB and IW4DXW unintentionally provided a challenge by transmitting almost on the same QRG but were both perfectly decoded:
http://df6nm.bplaced.net/wspr/twopass_decode.png

I have now updated the old LF-grabber machine (Win-XP) to the new wsprd.exe. I will later change the receive call from DF6NM/N back to /15.

The script in the upload-helper was modified for two-second turnaround to avoid missing the next upload opportunity:
:loop
@if exist wspr_spots.txt type wspr_spots.txt >>wsprd.out & del wspr_spots.txt & echo %time%
@sleep 2
@goto loop

73, Markus


-----Ursprüngliche Mitteilung-----
Von: Markus Vester <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 17. Nov. 2018 17:23
Betreff: Re: LF: Re: WSPR-15

Hi Domenico, all,

the reason for missing uploads seems to be that wspr-x expects the output in a file named wsprd.out rather than wspr_spots.txt. This could also be fixed by running a simple script like this one:

:loop
if exist wspr_spots.txt type wspr_spots.txt >>wsprd.out & del wspr_spots.txt
sleep 5
goto loop

Looks like the new decoder can still decode IW4DXW during the presence of a strong signal from DK7FC.

Best 73,
Markus


-----Ursprüngliche Mitteilung-----
Von: Domenico IZ7SLZ <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 17. Nov. 2018 12:17
Betreff: Re: LF: Re: WSPR-15

Hi LF,

i have tested this arrangement for two nights and the program WSPR-X seems stable and i have obtained many decodes. Thanks to all transmitting stations.

By the way, seems that upload of spots fails. I suggest to remove the tick "upload spot" on the program WSPR-X and use an alternative method to upload,  based on the attached batch file that works here.

First of all you have to rename the file from  .txt  to .bat  and change inside your call sign and grid.

This batch file uses two programs ('curl' -for Windows- and 'sleep' that you have to download)



I have installed 'curl' in the directory C:\CURL where i have also copied sleep.exe

Just launch the file batch after the first decode action of the program WSPR-X and leave it in background.


73, Domenico IZ7SLZ






On Thu, 15 Nov 2018 at 19:59, Domenico IZ7SLZ <[email protected]> wrote:
Hi LF,

I want suggest a further way to try WSPR-15 with latest improvement of the WSJT-X vers. 2.0.0.

WSJT-X uses the program wsprd.exe to decode wspr-2. This program has also wspr-15 capability. So i have taken wsprd.exe dated 10/11/2018 included in WSJT-X bin folder and putted in the  WSPR-X v0.9r3058 directory that i hold in my radio pc since years.

Some dll's need also to be copied in the same way (i did this in the past, so i'm not sure which files are necessary, but any error's message explains which library is necessary !)

So the program WSPR-X is now running with a new version of wsprd.exe and seems stable. I can operate WSPR-15.

By the way, my radio PC is an old PC with WinXp,  so i don't know if this old program (WSPR-X) should work on 64 bit pc.
Also i don't know if this program is longer available in the net.

Maybe this advice can be useful for operators working with similar conditions of mine.
73, Domenico IZ7SLZ






On Thu, 15 Nov 2018 at 18:00, Markus Vester <[email protected]> wrote:
Hi Stefan,

here is an attempt for a wspr-15 to wspr-2 receive converter which should also work under 64-bit Windows versions. Operation is similar to the old wspr-8 and -32 utilities
http://df6nm.bplaced.net/wspr/slowWSPR.zip
which also contains a description worth reading. The "waitraster" program has been replaced by a DOS loop based on the %time% variable.

To run the attached script, you will need to rename it from .txt to .bat. Then download DL4YHF's sound utilities from
http://www.qsl.net/dl4yhf/soundutl/sndutl_e.zip
and the little sleep utility
http://df6nm.bplaced.net/VLF/fec_tests/sleep.zip

The speeded-up audio should be routed from sndoutpt to WSJT-X using a virtual audio cable, e.g. VAC or VB-Cable from Vincent Burel
https://www.vb-audio.com/Cable/
This needs to be selected as the default audio output device, as well as the WSJT-X input device.

Note that
- reported frequencies will be translated from 137600-137625 to 137400-137600 Hz,
- reported timestamps will be 15 or 16 minutes late,
- reported SNR will be 9 dB too good.

I have to admit that the script hasn't been tested yet, so there is no guarantee that it will work at all. If I was to do this again, I'd probably not go down the speeded-up audio route, but rather make a script which calls wsprd.exe directly.

Good luck,
Markus (DF6NM)



-----Ursprüngliche Mitteilung-----
Von: DK7FC <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Do, 15. Nov. 2018 11:26
Betreff: Re: LF: Re: WSPR-15

Hi Markus,

Congrats to last nights successes!

Well, since WSPR-15 is certainly the better mode for LF DX, and the WSPR team is not interested in LF, will you find the motivation to release an updated version of your utilities that enable 64-bit users to receive WSPR-15 using the latest WSPR-2 decoder?

73, Stefan



Am 15.11.2018 00:49, schrieb Markus Vester:
> maybe they don't work on 64 bit machines?

yes that is the problem. These "tools" are just a simple DOS script. All the real work is done by the audio utilities from Wolfgang DL4YHF, which are running fine as ever. But my little "waitraster.exe" utility, which did nothing but hold the script until the beginning of a desired minute, will no longer work under Win-64.

Best 73,
Markus

-----Ursprüngliche Mitteilung-----
Von: N1BUG <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Mi, 14. Nov. 2018 23:03
Betreff: Re: LF: Re: WSPR-15

I am interested in this too, but if I recall there was a reason I
didn't install those tools. I can't remember now... maybe they don't
work on 64 bit machines? If that was it, I am out of luck.

My WSPR2/WSPR15 transmitting tests last season showed that WSPR15
was much better than WSPR2... even though most WSPR2 listeners were
using the new improved decoder and WSPR15 listeners were using the
old WSPR-X.

73,
Paul


On 11/14/18 4:09 PM, [email protected] wrote:
> Stefan
>
> Vague memories ... the tools, if they still exist, would be on an old computer that's not so easy to
> resurrect.
>
> Yes, it seems the current WSPR2 decoder is much improved. Think your time might be better spent on
> that mode since there are already many listeners. It would be interesting to see how far west into
> the US you could be decoded on a good night. Just my opinion ;~) .
>
> Jay W1VD
>
>
> ----- Original Message -----
> From: "DK7FC" <[email protected]>
> To: <[email protected]>
> Sent: Wednesday, November 14, 2018 1:51 PM
> Subject: LF: WSPR-15
>
>
>> Jay, LF,
>>
>> I already have the next idea, maybe for tomorrow? ;-)
>>
>> You remember the early days before K1JT released WSPR-15.
>> Markus developed the slow-WSPR tools and we (you, as the DX RX station ) tried WSPR-8 and even
>> WSPR-30 successfully.
>>
>> Using Markus tools, the slowly transmitted WSPR (with accurate FSK spacing) was accelerated
>> replayed in the next time slot and then fed to the normal WSPR-2 decoder, beeing connected to the
>> database.
>>
>> Meanwhile the WSPR-2 decoder performance seems to have much improved. So, it may be interesting to
>> try the 'old' tool of Markus together with the latest WSPR-2 decoder.
>>
>> What do you think? Do you still have the config files and so on?
>>
>> Worth a try?
>>
>> 73, Stefan
>>
>> PS: 137.620 kHz is right in the WSPR-15 defined slot. I think this is why my coil is resonant
>> there ;-)

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