16 feb. 2022 kl. 11:02 skrev FenDrifter via groups.io <essexmarshman@...>:



Hi Ola
Welcome to the group, I’m fairly new myself, but unlike you I’m just starting out in the hobby. I was fascinated by your antenna collection, I don’t know what the middle one is, but I was able to find out more about the third here:
http://sarmento.eng.br/Loop_Ferrite_Rod_Antenna.htm
I attach the link for anybody else to read. 

Drifter