Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

Re: LF: Re: Experimental software for WSPR-8 and -32

To: <[email protected]>
Subject: Re: LF: Re: Experimental software for WSPR-8 and -32
From: "mal hamilton" <[email protected]>
Date: Sun, 23 Sep 2012 13:54:59 -0000
References: <7F2208077DA448F78F384AF5B55DECA0@White> <[email protected]> <[email protected]> <829FB31FADAD4D4682EC509D2416C9F4@AGB> <005d01cd98fe$74bc6030$0501a8c0@xphd97xgq27nyf> <[email protected]> <[email protected]> <004d01cd9926$26739b50$6401a8c0@JAYDELL> <6ECF47A4215C4DED9E68C3058165ACD5@White> <[email protected]> <00d501cd998d$0d0d3420$0501a8c0@xphd97xgq27nyf> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]

Stefan
I will TX the odd time when condx are optimum but not Beacon all night. I would like him to reply to me on 7 Mhz CW if he detects me.
Most nights after dark I have good propagation to S.America on 7 Mhz.
De Mal/G3KEV
 
----- Original Message -----
Sent: Sunday, September 23, 2012 1:18 PM
Subject: Re: LF: Re: Experimental software for WSPR-8 and -32

Mal,

You have the strongest signal in the UK.
Yesterday, Martin/YV7MAE told me that he has managed to get a 6 dB improvement (i.e. noise reduction) with his E/H combiner. So there is a real chance to leave traces on his grabber.

Will you at least join in soon, in very good old QRSS-60 (or 30 likewise) ?

73, Stefan/DK7FC

Am 23.09.2012 15:12, schrieb mal hamilton:
Like you say Stefan the modes are changing daily and there are too few operators to cover all these various modes.
I expect it will all fizzle out eventually and then back to CW, QRSS and possible OPERA
Opera was gathering momentum when there was suddenly a Mode change and now the few LF/MF operators are all scattered
On HF there is more consistancy as I said earlier when it comes to data modes RTTY is the most prominent with some PSK31
but there is more normal hand sent CW about than anything else plus SSB.
The LF/MF bands are becomming too fragmented both by Mode and Frequency.
Meanwhile I am back to HF dxing on CW and looking around the lower freqs for CW acty.
Watching 472- 479 and 501 - 504 and 136- 138 approx
 
 
 
de mal/g3kev
 
----- Original Message -----
Sent: Sunday, September 23, 2012 12:46 PM
Subject: Re: LF: Re: Experimental software for WSPR-8 and -32

Hi Markus, Jay, Terry, Chris, LF,

Thanks for the yesterdays WSPR-8 tests!

Somehow i thought there would be a more general interest in these experiments but maybe it is to complex? Don't know... Another effect may be that we try daily change the modes. But this is experimenting. I hope that WSPR-32 will be a more serious alternative. From what we saw in WSPR-8, WSPR-32 must be very promising and i'm optimistic to have a decode from Venezuela!

The line on the map: https://dl.dropbox.com/u/19882028/LF/WSPR-8_test.png to W1VD is very bulky :-)
There were 11 decode by W1VD:
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
 2012-09-23 05:08   DK7FC   0.136164   -23   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-23 03:48   DK7FC   0.136164   -25   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-23 03:28   DK7FC   0.136164   -27   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-23 02:48   DK7FC   0.136164   -27   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-23 02:28   DK7FC   0.136164   -26   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-23 02:08   DK7FC   0.136164   -23   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-23 01:28   DK7FC   0.136164   -25   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-23 01:08   DK7FC   0.136164   -27   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-23 00:28   DK7FC   0.136164   -26   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-23 00:08   DK7FC   0.136164   -27   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2012-09-22 23:48   DK7FC   0.136223   -26   0   JN49ik   1   W1VD   FN31ls   6099   295 

Only 2 of them would have been in the range for WSPR-2 decodes. So the slower mode certainly helped to cover a wider time range.

There are 3 grabbers showing the occupied bandwidth of WSPR-8 and later WSPR-32:

http://qsl.net/4x1rf/yo/lfgrabber.htm
http://www.alice-dsl.net/df6nm/grabber/Grabber.htm
http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_LF_DX_Grabber.html

Markus, i would agree to move to WSPR-32 now. Same QRG. Will be interesting to see the new spectrograms and the possible distances! :-) Oh, i musn't forget to add a switch across the cap of the watchdog timer ;-)

73, Stefan/DK7FC




Am 23.09.2012 10:53, schrieb Markus Vester:
Thanks very much Jay, Terry and Chris for taking the effort to receive and report our experiment, and of course to Stefan for suggesting it in the first place. I think the expected gain in sensitivity is evident, even though there is no "miracle machine" of course. I have now ended the WSPR-8 transmission from Nuernberg for today.
 
How would you like to proceed from here? Try WSPR-32 next? Perhaps a slow WSPR experiment on MF? Or wait for Joe's 8-FSK mode JT8 which might knock off another dB?
 
BTW I don't use a transverter for MF, but an FE-5680A Rubidium synthesizer which can be controlled to generate WSPR directly.
 
Best wishes, and have a nice Sunday,
Markus (DF6NM)

<Prev in Thread] Current Thread [Next in Thread>