Topband: Hairpin Matching Coil Questions

[Jim GM]

MFJ and Texas Instrument used this type of calculation for antenna Q.

The other attachment is what some other people are using with their
inverted using the K2AV balun and a Gamma match on bands other than 160M.
 So I thought why not use the same gamma setup on 160M and not the FCP. So
from what you had said best I DO NOT GO THAT ROUTE.

My antenna system morfed into just using my gamma big coil on 160M.


On Sun, Sep 15, 2013 at 9:32 AM, Jim GM <jim.gmforum at gmail.com> wrote:

> Has any one used the MFJ-907 and do what I am trying to do on 160M as a
> hairpin match?
>
> From what I have been reading, Q needs to be high but not sure how high
> and what range.  My 6 inch coil with remote tuner in line with the tap on
> 160m I am getting around a Q of 80. My 2 inch coil has a Q much lower
> than that I know cause the set up has a much larger band width on 160M.
>
> I have around 30 to 40mh of coil from the tap to ground with both coils.
> --
> Jim K9TF
>



-- 
Jim K9TF