We check all the links at least once per month. We guarantee that 99% of the links are operational or flagged as "Out of order". Non working links are first flagged as "Out of order". If the link stays dead we remove it later from the list after an unsuccessful attempt to find out a new address.
Antenna modeling and optimization program by K4VX
Yankee Clipper Contest Club
Young Lady Radio League
With a lot of links to antenna pages
Portaal in het Nederlands
Zveza Radioamaterjev Slovenia
by the SARL
The Netherlands