On Dec 2, 7:46 am, "Jimmie D" wrote:


When you shorten an antenna dont you(shouldnt you) have to replace the C
along with the L?

Jimmie

Well, if you have less C, you would need more L. Depends where
you shorten the whip. Below or above the coil..
Shortening the whip below the coil does not effect the tuning near
as much as shortening the stinger above the coil.
IE: take my 11 ft mobile whip tuned to 80m. I can add a 3 ft
extension to the base, and it will shift the tuning a fairly small
amount in the band.. But add 3 ft to the stinger, and the shift
will be quite large.. You will be way out of the ham band.
Of course, if you have a choice, it's always better to add more
C, than it is to add more L.
I'm not sure if this is exactly what you are asking...
MK