RaDAR – Building a 6m delta loop

Building a wire delta loop for six meters is quite simple.


Loop calculation, 1005 / 50.255 = 19.99 feet = 6.09 meters.

For a coax matching section I used what I had in the box of old coax off cuts, RG62 a/u (93 ohm, VF = 0.86).


The quarter wave matching section calculaton, (246 x 0.86) / 50.255 = 4.209 feet = 1.28 meters used as an “ugly balun” rolled up on a length of 50mm  PVC drain pipe (white).

The calculations appeared to be correct and the antenna resonates well!