25 January 2010

Longwave/mediumwave square loop - picture

I think it's time to show my homebrew multiturn LW/MW square loop. Here it is, hanging from the library on the back wall of my shack. In this position I have received PA0A on 500 kHz WSPR.

CFL light bulbs seem to have no ill effect on the background noise, except for some birdies that can be heard occasionally. Also SMPS in the shack don't make a difference.

The loop still has no impedance matching transformer, so the high Z goes directly into the FT-817 antenna socket. That's probably the next improvement planned.