Thanks all for the good information. I know that many radials are
necessary, I just was wondering if the difference between 65 and 70 foot
lengths would make any appreciable difference. It looks like the basic
answer is no, so I'll cut them for 65 ft per the manufacturer's
instructions and have extra wire for extra radials!
73, Vince K4JC
On Sat, Feb 27, 2016 at 10:49 AM, Vincent Weal <vincek4jc@gmail.com> wrote:
> I'm installing a 40/80 meter vertical (DX Engineering 8040VA-1) which
> calls for 65 foot radials. However, I recently saw a video of an antenna
> presentation by W3LPL in which Frank suggests 70 foot radials for an 80
> meter antenna. I'll be burying the radials about an inch in the ground.
> Will it really make a dime's worth of difference whether I cut the radials
> at 65 ft or 70 ft? My understanding of radials has always been that
> elevated radials should be cut at a quarter wave plus 5%, but ground radial
> length isn't critical. I just wanted to get a consensus before I start
> chopping up thousands of feet of wire.
>
> (Yes, I am burying the radials because the guy who cuts my lawn will
> annihilate anything in his path. He even once managed to destroy an
> inverted vee that was 40 ft in the air!)
>
> 73, Vince K4JC
>
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