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Re: LF: WSPR15 LF DX

To: [email protected], Joe Taylor <[email protected]>, Vasily Savchenko <[email protected]>
Subject: Re: LF: WSPR15 LF DX
From: Stefan Schäfer <[email protected]>
Date: Sun, 20 Jan 2013 17:59:57 +0100
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LF,

The new mode WSPR-15 performs very well on LF! Several transatlantic decodes were achieved in my transmissions from friday to saturday. I'm impressed.
It also looks that there was the first transatlantic WSPR-15 LFdecode by WSPRs author Joe/K1JT.
Here a summary of the best reports from stations above 2000 km:

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
 2013-01-18 23:30   DK7FC   0.137608   -36   0   JN49ik   1   W4DEX   EM95tg   7054   294 
 2013-01-19 05:30   DK7FC   0.137608   -29   0   JN49ik   1   WG2XJM   EN91wr   6557   299 
 2013-01-19 06:30   DK7FC   0.137610   -34   0   JN49ik   1   K1JT   FN20qi   6302   295 
 2013-01-14 00:46   DK7FC   0.137615   -24   0   JN49ik   1   W1VD   FN31ls   6099   295 
 2013-01-18 06:30   DK7FC   0.137608   -27   0   JN49ik   1   W1TAG   FN42   5921   295 
 2013-01-18 22:30   DK7FC   0.137608   -30   0   JN49ik   1   UA0SNV   OO17hx   5742   42 
 2013-01-18 21:30   DK7FC   0.137608   -28   0   JN49ik   1   4X1RF   KM72ls   2850   121 
 2013-01-19 06:30   DK7FC   0.137611   -5   0   JN49ik   1   TF3HZ   HP94ad   2440   323


I'm very happy about the good results and think that they are promising for other stations as well! Maybe i can get a decode from Venezuela some day.

Today there is shock ice here in south DL and i have a 5 mm thick ice layer on my antenna isolators. I'm getting 2 A antenna current but the antenna is totally out of resonance, the variometer is on the high-L end. Most of the current seems to flow through the ice instead through the radiation resistance ;-) Anyway i started the TX again in WSPR-15 on LF and in 50% TX mode. Maybe the ice melts soon so the resonance builds up again :-)

Thanks to all monitoring and TXing WSPR-15 stations.

73, Stefan/DK7FC
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