coax length

[HomerBB]

"there were no big noticeable differences"

the image plane current is still present on the mast and the outer shield of the feedline, doesn't belong there. it needs to be forced back up into the radial system before you will begin to notice any real improvement in performance.

I have a choke just under the feed point at the base of the antenna. The GPK is mounted as required. I have good swr 1:2:1 / !:3:1.

What need I do more to properly force the current back up into the radial system?

My question is not a challenge. I'd really like to know if there is someting I'm missing...

 

[freecell]

if the supporting mast structure is conductive the antenna must be isolated from the mast.

 

[BOOTY MONSTER]

thats what i keep reading about the 2k's and 99's when you add ground radials .

 

[hotrod]

if the supporting mast structure is conductive the antenna must be isolated from the mast.

k dumb question what exactly meant by
conductive

 

[W5LZ]

In this context it means will it conduct electricity, it is metal?
- 'Doc

 

[HomerBB]

My mount is not conductive. While the mast proper is metal, it is not touching the earth, nor is there any earth grounds to it. It is mounted to the eave of my roof with clamps.

Another idea?

 

[freecell]

the ANTENNA must be isolated from the (support structure) MAST.

 

[HomerBB]

the ANTENNA must be isolated from the (support structure) MAST.

Ok. Gotcha.

Will do Thursday.

 

[HomerBB]

Got the antenna and mast separated with a non-conductive pole between them. My swr is slightly improved at the same ring adjustment on the A99.

Some Mexican skip is just beginning to add noise so I'll check for local and DX improvements as conditions allow.