Circularly Polarized Helical antenna 7.5 -13 dbi - New: Wave Trap match!
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Mar 15, 2011
, 11:43 AM
I do all my own crashes
United States, NH, Rochester
Joined Jan 2011
Here is what I did this morning before work. I used a 20" section of PVC conduit as alex spec'd in his build. I made all the markings and drilled a hole at the starting end for the copper to be held by. The chucked it up in my lathe and started turning coils. This is what I had laying around for copper so that's what I used. 1/4" and 3/8" tubing. There were no kinks but where the copper was held in the PVC, no sand had to be used, copper is very forgiving. It's a good trick for bending exhaust tubing though! Also it looks like I could make one longer if I had to.
Alex I'll send one of these out if you would like to check it out as a antenna. I just received my TX yesterday and this is all new to me......
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1/4" copper on the left 3/8" on the right. No kinks but where I fed it trough the PVC former.
1/4" copper on the top 3/8" on the bottom. No kinks but where I fed it trough the PVC former.