[TowerTalk] tuning a gap titan on 40 and 80??

[Tim, N9PUZ]

On Mon, 19 Jan 2004 19:37:16 -0800, Dan Sawyer wrote:

> I have a gap titan and am trying to 'tune' it on 40 and 80.
> 
> On 80 the center is about 3800kc; I would like to raise this to
> 3950. Is there a cap to do this??
> 
> On 40 the SWR is 2.8 at the low end and 3.2 at the high end. How
> can I adjust the SWR on 40? What are the controls and how do they
> work??

The length of the counterpoise hoop controls the center frequency on 
40 Meters. With mine ground mounted and about 75 feet from any 
structures the SWR was near perfect with the wire length set as per 
the manual.

The capacitor controls the center frequency on 75/80. A call to GAP 
will tell you which cap you need for sure but mine is resonant about 
where you want and I think the "green" cap is installed. I don't know 
the value.

Tim,  N9PUZ