post #1 of Old 05-20-2013, 09:08 AM Thread Starter
Registered User
2005 TJ Wrangler 
Join Date: Mar 2009
Location: Brunswick OH
Posts: 262
Trimming Adjustable Antenna

I just finished installing my CB using the Arizona Rocky Road double antenna mount (adding a 2m later) and a Wilson Flex4 antenna. I sanded everything and used dielectric grease on contacts and ran a braided strap from tailgate to tub to make sure everything is well grounded. Somehow my very first attempt at soldering PL259 connectors went well...

I'm getting a 1.3:1 on channel 1, and 1.7:1 on channel 40. I know it should be fine to use it as it, but ideally I want those numbers to match, which I believe means shortening the antenna. But the adjustment on the tip of the antenna is already all the way in. On the Wilson Flex, even when it's all the way in, it's still sticking out the top, so I'm wondering if it's safe to pull the adjuster out, trim the bottom a bit, and stick it back in to essentially shorten the antenna? It would be nice to see a 1.5:1 on both 1 and 40.

CURRENT: '05 TJ Rubicon
Past: '06 TJ SE
WeezyBlue is offline  
post #2 of Old 05-20-2013, 11:31 AM
Real Jeeps have dents
CJ7-Tim's Avatar
2000 XJ Cherokee 
Join Date: Apr 2002
Location: out in the garage - Minneapolis
Posts: 24,419
Run it like it is. You will only be chasing your tail. The difference is extremely minor, about a 3-4% variance.


A recent Gallup public opinion poll shows the NRA, at 58% approval, has a higher approval rating than either Hillary Clinton or Barack Obama.

Progressive Liberalism: Bringing you new Healthcare ideas so wonderful, they have to include mandatory participation ...

Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.
CJ7-Tim is offline  
post #3 of Old 05-23-2013, 09:04 AM
Registered User
2006 LJ Wrangler 
Join Date: Jan 2009
Location: New Mexico, USA
Posts: 604
I trimmed the tip on my Wilson 3' allowed me to get the SWR lower. I just took a little off at a time...

Originally Posted by mrblaine View Post
You must have grown up in the no winners no losers generation where everyone gets a participation trophy and a pat on the butt for just showing up with their clothes on right side out.
MJBinNM is offline  
post #4 of Old 05-23-2013, 10:20 AM
Registered User
2001 TJ Wrangler 
Join Date: Dec 2002
Posts: 12,060
Be careful here. I was close to 1:1 SWR on low channels and about 1:4 on higher channels. I want it to be better. I worked at and now I at about 1:4 on lower and 1:6 on higher channels. I decided to quit while I was ahead and live with it. They say anything below 2.0 is fine. I was playing around with a magnetic antenna I could put it on the cowl and be just under 2.0 and moving an inch to the hood was closer to 3.0. Even opening and closing doors changes the SWR on my jeep.

01 TJ, 34 Super Swaper 34x10.5 bias, Winch, locked, belly up, some armor.
Ross is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome