Base Vector 4K high swr

[Robalo]

I have to put my antenna down because I have variable swr from 1.2 to 2.5 or more so far this is what I found up. Any idea how to fix it please tx.

 

[sp5it]

Drill across and use inox screws.

 

[Jay Mojave]

Hello Robalo: Ok your description is a little thin. Hard to help out with just one photo. What are the holes in the tubing, are from wear and tear?. Can you give us more info as to what is was doing and when the VSWR was moving around.

Jay in the Great Mojave Desert

 

[Shadetree Mechanic]

On my 4k, I cut a slot in the outer tube and used two hose clamps on each joint. I didn't use the screws at all.

 

[26OD004]

I had a Vector 4K 25 years ago, and IIRC there were 2 self tapping screws at the join of each section. Looks like the small holes for the self tapping screws have become elongated with stress of moving around in the wind over the years. This will have shortened the antenna and increased the SWR.

I would either turn each tube 180 degrees and drill 2 new holes in the back of the appropriate size or, go with Shadetrees idea and cut a slice in the end of the tubes and use hose clamps.

 

[Robalo]

How about rivets. There the lower part nice and clean

 

[Robalo]

She is ready after a lot a work. I used 6.0 x 1.0 mm body mounting bolts she is strong now is to difficult for one person to mount it but I got it

 

[groundwire]

I had a Vector 4K 25 years ago, and IIRC there were 2 self tapping screws at the join of each section. Looks like the small holes for the self tapping screws have become elongated with stress of moving around in the wind over the years. This will have shortened the antenna and increased the SWR.

I would either turn each tube 180 degrees and drill 2 new holes in the back of the appropriate size or, go with Shadetrees idea and cut a slice in the end of the tubes and use hose clamps.

Exactly, 2 simple quick and easy fixes. I vote for slotted tubing and clamps, solid, time tested and will stay put.