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LF: MF propagation

from [Stefan Schäfer] [Permanent Link][Original]
To: [email protected]
Subject: LF: MF propagation
From: Stefan Schäfer <[email protected]>
Date: Tue, 25 Jun 2013 21:56:18 +0200
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MF,

I just saw this:
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
 2013-06-25 19:48   DK7FC   0.475690   0   -1   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:42   DK7FC   0.475689   -2   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:36   DK7FC   0.475690   -2   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:24   DK7FC   0.475690   -8   -1   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:18   DK7FC   0.475690   -8   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:12   DK7FC   0.475690   -9   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 19:00   DK7FC   0.475690   -17   0   JN49ik   1   IW4DXW   JN64bw   563   151 
 2013-06-25 18:54   DK7FC   0.475689   -23   0   JN49ik   1   IW4DXW   JN64bw   563   151

I find it interesting to see that the propagation on 630m between JN49 and JN64, just 563 km, changed so rapidly and consistant from a non-decode to an SNR of 0 dB, i.e. by about 30 dB in one hour!

At EA2HB we can see now daily when the band opens from DL to EA and when it closes. A really useful software!

73, Stefan/DK7FC
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