Some audio recordings I made from friends ZL1BMW, ZL1AIX and ZL2SQ on 40m band.
Because of local regulations and a lack of space I tryed different antennas with poor results. At last I found the solution in a magnetic loop antenna.
So in 2009 I started to build a magnetic loop antenna and after a few models the results where very satisfying. For the first time I could work real DX from my location.
Now I have a good working magnetic loop for 40 m.
The size is 2.5 m diameter, 4.2 m above ground level.