Forum
Avatar
Please consider registering
Guest
Advanced Search
Forum Scope


Match



Forum Options



Minimum search word length is 3 characters - maximum search word length is 84 characters
message
CB antenna requirements/restrictions
June 20, 2008
4:13 am
Avatar
Fred
Member
Subscriber
Forum Posts: 3609
Member Since:
May 4, 2004
sp_UserOfflineSmall Offline

I know that Cal4Wheel and others require that your cb antenna length be no longer than about 4 feet. Has anyone heard about any restrictions with how high above your vehicle the antenna can be?

I just put in a new cb and had to relocate my antenna to get good SWR measurements. I've now got a 4' tall antenna mounted to the top of my trail rack. It sticks up about 3.5' above my Jeep. It looks a little tall, but it gets 1.3 on the SWR on every channel.

June 20, 2008
4:43 am
Avatar
Dan-H
Member
Subscriber
Forum Posts: 1378
Member Since:
February 5, 2003
sp_UserOfflineSmall Offline

I think you'll be fine.

I worked trek staging for 4 years and we would only take issue with metal antennas that could fly all over the place. We had a few show up with 9 foot whip antennas that we made duct tape to the roll cage or remove entirely. fiberglass antenna's were not a problem no matter how high they were, and even 5 footers were overlooked.

Is it on a spring mount? Up that high it might get torn off in the trees if its not.

Closed Mondays.

June 20, 2008
5:00 am
Avatar
BKGM Jeepers
Folsom
Moderator

Club President
Forum Posts: 7065
Member Since:
April 2, 2003
sp_UserOfflineSmall Offline

"FAM" wrote: I know that Cal4Wheel and others require that your cb antenna length be no longer than about 4 feet. Has anyone heard about any restrictions with how high above your vehicle the antenna can be?

I just put in a new cb and had to relocate my antenna to get good SWR measurements. I've now got a 4' tall antenna mounted to the top of my trail rack. It sticks up about 3.5' above my Jeep. It looks a little tall, but it gets 1.3 on the SWR on every channel.

Thread semi-hijack. I tried to tune my CB, but have no clue what I'm doing-even after reading the directions. Could I run by some time and get a check up?

June 20, 2008
5:02 am
Avatar
Dan-H
Member
Subscriber
Forum Posts: 1378
Member Since:
February 5, 2003
sp_UserOfflineSmall Offline

I might have an SWR meter. I'll go check. back in 5 mins

Closed Mondays.

June 20, 2008
5:03 am
Avatar
BKGM Jeepers
Folsom
Moderator

Club President
Forum Posts: 7065
Member Since:
April 2, 2003
sp_UserOfflineSmall Offline

"Dan-H" wrote: I might have an SWR meter. I'll go check. back in 5 mins

George lent me his and its in my garage. Still no clue... embarassed

June 20, 2008
5:06 am
Avatar
JohnDF
Member

Club Member
Forum Posts: 9521
Member Since:
July 10, 2003
sp_UserOfflineSmall Offline

If it works...don't mes with it wink

I used to wheel a lot. . .

June 20, 2008
5:07 am
Avatar
Dan-H
Member
Subscriber
Forum Posts: 1378
Member Since:
February 5, 2003
sp_UserOfflineSmall Offline

I can go put an antenna on my jeep and try to talk to you.

Closed Mondays.

June 20, 2008
5:08 am
Avatar
Dan-H
Member
Subscriber
Forum Posts: 1378
Member Since:
February 5, 2003
sp_UserOfflineSmall Offline

"Dan-H" wrote: I can go put an antenna on my jeep and try to talk to you.

and I did find my meter, but I couldn't find the patch cable embarassed

Closed Mondays.

June 20, 2008
5:42 am
Avatar
Dan-H
Member
Subscriber
Forum Posts: 1378
Member Since:
February 5, 2003
sp_UserOfflineSmall Offline

"BKGM Jeepers" wrote: [quote="Dan-H"]I might have an SWR meter. I'll go check. back in 5 mins

George lent me his and its in my garage. Still no clue... embarassed

I can show you how, but I'm heading to bed. I'll be around tomorrow evening if you still need some help.

Does the meter have instructions?

If its like mine you plug it in inline. Flip the switch to fwd, key the mike adjust a knob to get the max power then flip the switch to rev and read the SWR.

check on 1, 20 and 40.

If high on 1, lower on 20 and lower still on 40 the antenna needs to be lenghened slightly with the tuning screw.

If high on 40, lower on 20 and lowest on 1, try shortening antenna by screwing in the tuning screw slightly.

Make small changes.

- Dan

caveat: this is from memory and I haven't done this in 10 years and can't find the instructions and haven't read the instructions in probably 25 years so I might have this mixed up.

Closed Mondays.

June 20, 2008
5:46 am
Avatar
Dan-H
Member
Subscriber
Forum Posts: 1378
Member Since:
February 5, 2003
sp_UserOfflineSmall Offline

OK, last one. I think my instructions are pretty close but here is a writeup.

http://www.offroaders.com/info/tech-cor ... ng/swr.htm

Closed Mondays.

June 20, 2008
7:29 am
Avatar
RobD
Member
Subscriber
Forum Posts: 1721
Member Since:
July 15, 2005
sp_UserOfflineSmall Offline

I have never tuned a CB antenna...Never had a problem and I get all the distance and clarity of a tuned antenna...

__________________
'If we ever forget that we're one nation under God, then we will be a nation gone under."- Ronald Reagan

June 20, 2008
1:25 pm
Avatar
Fred
Member
Subscriber
Forum Posts: 3609
Member Since:
May 4, 2004
sp_UserOfflineSmall Offline

"BKGM Jeepers" wrote: Thread semi-hijack. I tried to tune my CB, but have no clue what I'm doing-even after reading the directions. Could I run by some time and get a check up?

If you'd like to come by Saturday we could check it out.

June 20, 2008
1:28 pm
Avatar
Fred
Member
Subscriber
Forum Posts: 3609
Member Since:
May 4, 2004
sp_UserOfflineSmall Offline

"Dan-H" wrote: Is it on a spring mount? Up that high it might get torn off in the trees if its not.

No spring, but it's a Wilson Flex antenna. Its bendable like a fishing rod. I think it'll be ok, but I've got it on a quick disconnect so I can remove it if needed.

June 20, 2008
1:30 pm
Avatar
Fred
Member
Subscriber
Forum Posts: 3609
Member Since:
May 4, 2004
sp_UserOfflineSmall Offline

"RobD" wrote: I have never tuned a CB antenna...Never had a problem and I get all the distance and clarity of a tuned antenna...

Sometimes you get lucky. Once I got this antenna into a good location the tuning was great and I didn't have to make any adjustments.

June 20, 2008
5:00 pm
Avatar
BKGM Jeepers
Folsom
Moderator

Club President
Forum Posts: 7065
Member Since:
April 2, 2003
sp_UserOfflineSmall Offline

"FAM" wrote: [quote="BKGM Jeepers"]Thread semi-hijack. I tried to tune my CB, but have no clue what I'm doing-even after reading the directions. Could I run by some time and get a check up?

If you'd like to come by Saturday we could check it out.

Can I get a raincheck? I'm out of town.

June 20, 2008
5:01 pm
Avatar
Fred
Member
Subscriber
Forum Posts: 3609
Member Since:
May 4, 2004
sp_UserOfflineSmall Offline

"BKGM Jeepers" wrote: Can I get a raincheck? I'm out of town.

Sure

Forum Timezone: America/Los_Angeles
Most Users Ever Online: 81
Currently Online:
Guest(s) 1
Currently Browsing this Page:
1 Guest(s)
Top Posters:
JohnDF: 9521
Fred: 3609
Gregulator: 3072
Jeff_R: 1801
RobD: 1721
Josh: 1630
Tom: 1465
Justin: 1416
Gilbert & Betty: 1410
Dan-H: 1378
Member Stats:
Guest Posters: 12
Members: 144
Moderators: 5
Admins: 1
Forum Stats:
Groups: 5
Forums: 24
Topics: 4295
Posts: 66487
Newest Members:
1989YJSarah, billyvincent26, chassidyoatley1, heykell, Julie Dwyer, [email protected], follosdin, TerryL, [email protected], Ski man
Moderators: Posse4x4: 1, BKGM Jeepers: 7065, Lynda and Guy: 226, kris_olof: 1135, Jamie (K6NUB): 781
Administrators: k-jeep: 2240
Members Birthdays
sp_BirthdayIcon
Today: None
Upcoming: huck271