It makes no difference if the wire is insulated or not all of mine is insulated for my Hy Gain AV-18HT Hy Tower have 82 radials 1/4 wl for all bands 10-160m stapled to the ground. It is my best 80m antenna that i have and I do have several for that band. Do not forget a ground rod for my Hy Tower it calls for 6 8' ones and I have all of them very important. On my AH-4 that I use portable for my IC-9100 and IC-703 Plus I use 1 8' ground rod a must have and 12 33' radials and 8 60' ones. I have found that rolling and unrolling them tends to cause breakage of the smaller wire sizes so the smallest I use is 14 ga stranded insulated. I have very good coverage 10-80m with this arrangement and if the longer radials need to be bent in a smaller area that's fine also the radios work FB on 80m at night and for daytime short range ecomm use.
73 de Fred N0AZZ
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