[TowerTalk] "Magic" length from tower to first insulator

[Larry Loen]

A friend of mine told me that someone, somewhere had calculated a "magic"
length for guy cable.  If you went down 10 or 11 or 13 feet (or whatever it
is) off of your tower and installed your first insulator there, your guys
would be sufficiently 'non-resonant' so that they wouldn't interfere with
the pattern of the antenna(s) above.

What is this magic length and where is it documented?


Larry WO7R