PA7JWC

DUTCH AMATEUR RADIO STATION

K9AY LOOP

During preparations for the PACC contest for PA6NB I had the idea to make a K9AY loop. We now use an inverted L antenna for 160m and 80m 2x 20m dipole. It was a fun project to create a receiving antenna and so am I ended up with a K9AY loop.

There are various designs available on the internet. I chose the design with three separate relais, two for switching the loops and one for switching between 160m and 80m. Frank PA2M made a 9:1 transformer for me.

Here a few pictures: