[TowerTalk] Radial question

[Vincent Weal]

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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