LF: RE: New personal QRP DX record on 500kHz: 1733km

[Rik Strobbe <Rik.Strobbe@fys.kuleuven.be>]

Hi Roger,

 

congrats with teh new ODX.

Did you improve the setup ?

I had daytime copy of your signal up to -25dB at at night copy up to -18dB (meaning you could have reduced power by another 13dB).

 

73, Rik  ON7YD - OR7T

 

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Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Roger Lapthorn [rogerlapthorn@gmail.com]
Verzonden: woensdag 20 oktober 2010 23:24
Aan: rsgb_lf_group@blacksheep.org; GQRP@yahoogroups.com
Onderwerp: LF: New personal QRP DX record on 500kHz: 1733km

This evening, quite unexpectedly, I got a string of reports on 500kHz WSPR from OH1LSQ in KP03sd at an astounding distance of 1733km. To me these are amazing reports pushing my best DX on the band with just a few milliwatts ERP to new levels.  What surprises me is how well a very simple vertical wire loop works as a TX antenna: the wire is just 1mm diameter, with an area of around 70m square with part of the loop laying on the ground buried in wet grass.

Even more than before, I now believe almost anything is possible.

Now I just need to repeat this on 137.5kHz....

73s
Roger G3XBM

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G3XBM   GQRP 1678    ISWL G11088