@F1RUM @M0YNG

There is a lot of antenna stuff to
discover in the web:

https://www.eham.net/reviews/view-product?id=3497

https://www.aerial-51.com/app/download/5812367490/DL2RD_Aerial51-807L_engl-1.pdf

#hamradio
#antenna
#windom
#fd3
#fd4