Again, the basic antenna is pretty simple - just a half sloper against the tower with a 3-element 12m Yagi on top. Luckily, it's on sloping ground and appears to be 15m tall from just 80 m away horizontally. So this, plus the far field ground, does yield very good gain - about +7dBi over the inherent gain of the antenna, with no obstructions. The sea is a minimum of 2km away.
I was really pleased with the results, because there are plenty of very-well appointed 40m WSPR stations out there. As you can see from the table below, I reached 12th position, with only a handful of extra spots gained by those up to about 4th position above me.
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| Not bad for a half sloper! |
Whilst the antenna does have a very good native SWR for its type (1.4:1), the results do confirm that the location is very important.
So my station is doing pretty well, reaching near the top of the tables on each band.
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