Yet again, I was on 630m WSPR with my 10mW ERP from the earth-electrode "antenna" in the ground. Results continue to amaze me. OH1LSQ (1733km) seems to spot me most nights.
20 Oct 2023
630m QRP WSPR overnight - amazing!
Yet again, I was on 630m WSPR with my 10mW ERP from the earth-electrode "antenna" in the ground. Results continue to amaze me. OH1LSQ (1733km) seems to spot me most nights.
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2 comments:
How deep are the electrodes and how far apart. Do you have a tuner to get 50 ohms?
Just standard earth rods. I use a 3C90 toroid to get maximum antenna current. At the old QTH I just went straight from the transverter into the earth rods. At a guess I would say to earth-electrodes are about 10m apart at this QTH. They were maybe 20m apart at the old QTH (prior to 2013). My theory is they form a loop antenna in the ground. It is very effective at 630m, but I have used it on 160m, 80m and 2200m (RX only on this band).
73s Roger G3XBM
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