Same Station/Same Time - Multiple Decoded Spots

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G8LIY
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Last seen: 2 months 1 week ago
Joined: 2009/08/26 - 09:33
Same Station/Same Time - Multiple Decoded Spots

Hi All,

A newbie here, Please can you look at the following examples:

2009-08-28 11:08 IQ4DJ 10.140225 -20 0 JN54ks +30 1.000 G8LIY IO80vv 1188 738
2009-08-28 11:08 IQ4DJ 10.140175 +1 0 JN54ks +30 1.000 G8LIY IO80vv 1188 738
2009-08-28 11:08 IQ4DJ 10.140125 -22 0 JN54ks +30 1.000 G8LIY IO80vv 1188 738
2009-08-28 11:08 IQ4DJ 10.140275 -26 0 JN54ks +30 1.000 G8LIY IO80vv 1188 738

2009-08-28 10:40 DF5FF 10.140133 -1 0 JO40kd +37 5.012 G8LIY IO80vv 787 489
2009-08-28 10:40 DF5FF 10.140182 -23 -1 JO40kd +37 5.012 G8LIY IO80vv 787 489
2009-08-28 10:40 DF5FF 10.140232 -28 -1 JO40kd +37 5.012 G8LIY IO80vv 787 489

2009-08-26 06:38 G4CWX 10.140290 -22 -1 IO81qi +30 1.000 G8LIY IO80vv 59 37
2009-08-26 06:38 G4CWX 10.140240 -17 -1 IO81qi +30 1.000 G8LIY IO80vv 59 37
2009-08-26 06:38 G4CWX 10.140141 -18 -1 IO81qi +30 1.000 G8LIY IO80vv 59 37
2009-08-26 06:38 G4CWX 10.140190 +5 -2 IO81qi +30 1.000 G8LIY IO80vv 59 37

I have my audio set at a level where "RX Noise" lower left of WSPR screen is approx -5/-6dB,
ocaisonally it will go red -10dB. If I set it to 0 I get lots of multiple decodes

I have looked at many of my occurences of this.
It appears If I get a station with a SNR >-2 then I get the multiple decodes at approx +/- 50HZ

Any comment welcome