[Antennas] Next dumb question

[Michael Josefsson]

On 23 Nov 2012, at 18:39, Jim Miller wrote:

> Is a capacity hat electrically connected (metal to metal) to the antenna
> itself or is it just sitting there insulated but "capacitively coupled"?
> 

It is electrically connected.

> The coil I bought was supposed to be for 15 to 80 meters.  Well.. It only
> tunes down (no coil) to about 4.1 and SWR is too high to use even at 3.963
> MHz (and it won't go into the 15 meter band either, 20 is tops).  OK,
> shorter whip for 15.  
> 
> But, for 80 meters, thinking about stationary operation and adding a
> temporary top hat to bring me into the top end of the band.  
> 
> Better yet, also thinking about adding a few turns of extra coil at the base
> to bring the whole thing down a bit.  How much would it take me to move from
> 4.1 down to 3.9 or so using existing coil for adjustment and my 102 in whip?
> Say #12 THHN close wound on a 2 inch form (6,8,?)
> 

Everything depends on everything else... Trial and horror is your path :/

Cheers anyway:)

/Micke