I have 80M, 40M and 30M Inverted V's on one feedline. After you put
them up, check the SWR and locate where they are resonant. You can then
trim each to move the lowest SWR to whatever frequency you chose.
Let's suppose you would like to have the 80M antenna set for 3800KHz and
it is actually 3600KHz. You know the antenna has to be lengthened, so
calculate the lengths for both frequencies and subtract one from the
other. That gives you the trim length for 100KHz on an 80M dipole.
This makes the trimming an quicker task.
dan bookwalter wrote:
> I know this isnt exactly thr right forum for this but
> i am confident i cant get the answer...
> i am putting up a pair of Inv V's one for 40 and the
> other for 80 both feed from th esame feedline, i dont
> recall which one i am supposed to tune first ???
> anyone know ??
> Dan N8DCJ
> Do you Yahoo!?
> Yahoo! SiteBuilder - Free web site building tool. Try it!
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
> TowerTalk mailing list
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
TowerTalk mailing list