Re: LF: Europe to South America on 2200m in WSPR-15

["Graham" <g8fzk@g8fzk.fsnet.co.uk>]

Only  a single  decode  in the  wspr  data  base , for  such a  signal  level , what  did  the  grabber  show  over  this time  period  ?

 

G..

From: Stefan Schäfer

Sent: Thursday, February 07, 2013 1:28 PM

To: rsgb_lf_group@blacksheep.org ; YV7MAE Maritn A. Echazarreta D. ; Joe Taylor

Subject: LF: Europe to South America on 2200m in WSPR-15

LF,

I'm most excited to see that my last nights WSPR-15 transmission starting 5:30 UTC was decoded by YV7MAE in Venezuela:

Timestamp	Call	MHz	SNR	Drift	Grid	Pwr	Reporter	RGrid	km	az
2013-02-07 05:30	DK7FC	0.137615	-33	0	JN49ik	1	YV7MAE	FK81bd	7812	264

That's a first digimode one-way between these continents on LF. The SNR wasn't even close to the decode limit. Actually the is room for another 6 dB :-) The losses here on the TX side were even quite high due to the bad WX.

Thanks to Martin/YV7MAE for running the RX system (http://dl.dropbox.com/u/74746618/LF/YV7MAE_LF_Grabber.html ) all the time and thanks to Joe/K1JT for develpoing this great software.

Image: https://dl.dropbox.com/u/19882028/LF/DL-YV.png

73, Stefan/DK7FC