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LF: RE: How is possible? / WSJT-X

To: "[email protected]" <[email protected]>
Subject: LF: RE: How is possible? / WSJT-X
From: VIGILANT Luis Fernández <[email protected]>
Date: Wed, 21 Sep 2016 08:22:33 +0000
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Thread-topic: How is possible? / WSJT-X
Hi All
 
Joe Taylor made a very interesting presentation of WSJT-X at EME2016 in Venice
 
There is a pdf available for download with lots of information about it
 
 
An offcial version with all the modes and also QRA64 is still to come
 
73 de Luis
EA5DOM


De: [email protected] [mailto:[email protected]] En nombre de F6CNI - Andy - JN19QB
Enviado el: miércoles, 21 de septiembre de 2016 9:52
Para: [email protected]
Asunto: LF: How is possible? / WSJT-X

Hello Stefan.
 
Some comments :
 
Here it keep in memory the last mode and band used when I start... I have not your problem. I just chek all the menus, but I do not find anything about that. So ???
Yes The WSPR-15 is not yet implemented, that is perhaps the reason why this version it is not official...
The JT9 and JT65 are working very well
I Think also the docode is faster, the Deep option in the decode menu is fine, it can decode 2 signals very close in frequencies and a bit better in S/N reports (but I think no more sensitive).
I did not tried to open several instances of the V1.7.0 here. Often I open one XSJT-X v 1.7.0 for WSPR2, one v 0.8 r3058 for WSPR15 and one for OPERA. That all.
 
Best Luck and 73 Stefan.
@++ Andy.
 
 
From: DK7FC
Sent: Tuesday, September 20, 2016 11:41 PM
Subject: Re: LF: How is possible? / WSJT-X
 
Hello Andy / F6CNI,

Thank you for pointing me to WSJT-X v1.7.0-devel, it actually performs better than my old WSPR-X v0.9 r3058, especially when strong and weak signals are present in the same time slot! It also shows a 2 dB better SNR (sometimes) but i don't (still) know if it is 2 dB more sensitive. Also it decodes faster.
I will use it from now on.
Unfortunately WSPR-15 is not supported in that mode so i will use the older version for that.
Why does the program not save the band? After a restart it always starts on 2m... But that's a minor problem...
I will see if it runs for weeks without crashing, an important parameter!

How is it possible to run 2 or multiple instances? Do i need 2 installations?

73, Stefan


Am 09.09.2016 11:17, schrieb DK7FC:
I think it has to do with different software versions!?

imestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2016-09-03 09:04 F/DK7FC 0.475681 +38 0 JN29od 1 F6CNI JN19qb 134 267

I'm still using WSPR-X v0.0 r3058 here. Newer versions performed worse for some reasons. This version does not produce SNRs better than +15 dB if i remember correctly.

Another thing may be that someone could use e.g. a 250 Hz wide filter instead of the reference filter bandwidth of 2500 Hz (SSB), which then produces wrong ("improved") reports.

73, Stefan


Am 09.09.2016 10:13, schrieb Max IK0VVE:
Could someone explain this?
 
2016-09-08 19:42  IK0VVE  0.475682 +17  0  JN61km  0.05  F6CNI  JN19qb  1119  322
2016-09-08 19:26  IK0VVE  0.475682  +1  0  JN61km  0.05  F6CNI  JN19qb  1119  322 
2016-09-08 19:10  IK0VVE  0.475682  -1  0  JN61km  0.05  F6CNI  JN19qb  1119  322
2016-09-08 18:54  IK0VVE  0.475682  -6  0  JN61km  0.05  F6CNI  JN19qb  1119  322

If I listen my signal with my RX antenna 5 meters far from TX antenna my SNR is maximum +13 db, also for IZ0GIF that is about 4 km far from me.
Probably Andy has an exceptional receiving system but +17 to more than 1000 km is a great SNR I thing, HI.

After some minute great reports again:

2016-09-08 19:46 DH5RAE 0.475755 +14 1 JN68qv 0.5 F6CNI JN19qb 730 275
2016-09-08 19:46 PA3ABK/2 0.475740 +19 0 JO21it 0.5 F6CNI JN19qb 320 198
 
73, Max IK0VVE 



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