[TowerTalk] 30m Dipole

[Bill Turner]

ORIGINAL MESSAGE:

On Thu, 3 Aug 2006 11:25:04 -0500, you wrote:


>I had a book that said 468 divided by frequency for wires only, and 455 divided by frequency for tubing.I always added 6% to the 468 for wires and started trimming 3 inches off each end. Never had to cut much off the inverted vee since it was about 5% longer than if it was totally horizontal(dipole).

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You can do the trimming in one step. After putting the antenna up,
measure its resonant frequency and then calculate the percentage
change needed to bring it to the desired frequency. Apply that
percentage to the existing length and cut or add as needed.

One trim instead of many. Works like a charm.

Bill, W6WRT