Building the 70cm array for eme .

I decided on the DG7YBN yagi's , ease of build and good gain low noise.

i designed an element holder on my 3D printer , this enables me to just place the elements on the boom rather then through the boom .

they are then fixed with a single staless self taping bold afer driller a pilot hole first.

this make the construction accurate and repeatable , we can reuse the element holders as well.

you can see the way the elementa are fixed to the boom and the dipole element with direct feed .

the dipole is the slant version this converts the 18ohm of the antenna to 50 ohms.

the matching is pretty much perfection.

designed a frame to take the 4 x 17 ele yagi i built

the completed array , also using the Spid rotator for AZ/EL and pstrotator for tracking the moon real time.

here are the yagis befor mounting to the frame

built the powwr splitters with brass square tube,

curve response of the whole array