Not Saying this would work for everyone Most do not need a Ant  for  one
Freq ,  at 444.750 the SWR was a 3.5

 

The Fiberglass radome actually unscrewed from the bottom when removed it was
a Single Copper Wire with 3 Coils. The wire on the Top was in a Sleeve that
would allow You to Unsolder and move up and down / 

 

I did that about 3 Times Up and 3 Times down at ¼ or less each time and slid
the cover back on and Used a Bird Wattmeter with 5 Watt Slug, I had the
Kenwood TS-2000 At 50 Watts UHF 

 

 I reversed the Slug for a SRWR Reading When started it was 3.5 When I
finished it barely Moved about 1.1  50 Watts in about 49 Out that’s good
enough for Me  

 

I was surprised how little in and out mad such a difference 

So I put everything back together and it is working fine 

 

Thanks 

 

Don KA9QJG 

  

I just wanted to add I am not trying to Make a Ant but actually tune one
that is made for the Freq I need 

it is Made for that Freq Center at 445 But it is a Little High Antenex
FG-4405 Actually 72 In 

http://tinyurl.com/ydenqf4

__ Before I try and re invent the wheel I thought I ask if anyone else has
already did this or even if it could be done.

I have a 48 in Ant made by Antenex 5DB uhf Base that I plan on
using on a repeater at 444.750 the actually ant is enclosed inside the
fiberglass tube. 

The SWR Is High at 444.750 abut a 3 that would be ok in Most cases but not
on the Repeater which wants to see very little SWR To duplex properly.

So My thought is to get a Dremel cut and remove the tube from the bottom
then remove it and get the Bird Wattmeter and Cut or add if needed the end
of the rod to get the SWR Low as possible 

Then put it back together using JB- Weld or some type of Fiberglass repair
kit. 

Thanks 

Don KA9QJG 




 

 

Reply via email to