Cubic quad antenna PMR446 70cm radio

cults3d

I created this as a weekend project, dimensions were sourced from a website http://www.csgnetwork.com/antennae5q2calc.html. To use it, simply enter the frequency and hit the calculate button, I've included a screenshot of 446mhz. I used 12 AWG copper wire to form the loops that fit inside the printed frames, after finding the SWR to be very high I added a coax balun as found on this site http://www.m0zpk.co.uk/70cmbeam/. Then everything worked well. I've included the support arm but it was made for my rotator so will only have limited use, just mount the finished beam to the support arm and secure with 2 small cable ties.