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LF: MF WSPR from France

To: [email protected]
Subject: LF: MF WSPR from France
From: Stefan Schäfer <[email protected]>
Date: Mon, 09 Sep 2013 16:57:58 +0200
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Hi all,

Without any announcements i've been in France again last weekend, like each year, meeting some friends on a fieldday.

This time no LF experiments were planned and no MF / 630m, because the band isn't still allocated in France. The WX was bad, no wind but mostly raining.

However there was mobile internet available and so i run some RX tests on 630m WSPR. First i wanted to use a my active ferrite antenna but then i remembered that i have done a modification on my MF converter so that it doesn't work in combination with that antenna. My last chance was to use a simple piece of wire, connected to the RX. It turned out that it was very easy there in the open field to get some very good results! I just took a simple wire, 10 m long, dropped in some nearby (wet) hedge. The RX was then grounded by a 10cm long/deep tent peg. No matching transformer or resonance circuit was used!

Outside the city and far enough away from DCF39, AFN and DLF it was quite easy to get a nice S/N from the transmitting stations. The background noise was 20 dB above the RX+soundcard noise.
I've been active for just a few hours and these are the best S/N reports for the active stations (thanks to them for the interesting tests).

Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
 2013-09-07 22:48   IZ7SLZ   0.475646   -29   1   JN80nu   50   F/DK7FC   JN29pd   1307   319 
 2013-09-07 21:26   I5MXX   0.475618   -19   0   JN53ju   10   F/DK7FC   JN29pd   723   326 
 2013-09-07 21:22   M0PPP   0.475617   -15   0   IO93gm   0.2   F/DK7FC   JN29pd   675   133 
 2013-09-07 20:22   DF2FF   0.475773   -28   0   JO44th   0.5   F/DK7FC   JN29pd   647   209 
 2013-09-07 20:18   G3WCB   0.475732   -23   0   IO91rm   0.02   F/DK7FC   JN29pd   491   120 
 2013-09-07 20:46   PA0A   0.475697   +2   0   JO33de   1   F/DK7FC   JN29pd   455   189 
 2013-09-07 21:34   G6AVK   0.475759   -23   0   JO01ho   0.005   F/DK7FC   JN29pd   429   128 
 2013-09-07 20:48   DK6NI   0.475696   -18   0   JN59ln   0.1   F/DK7FC   JN29pd   413   266 
 2013-09-07 19:56   PA3ABK   0.475741   +3   0   JO21it   0.01   F/DK7FC   JN29pd   299   172 
 2013-09-07 21:24   F4DTL   0.475616   -17   0   JN18fp   0.2   F/DK7FC   JN29pd   214   74 

73, Stefan/DK7FC
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