cb problem - Ranger-Forums - The Ultimate Ford Ranger Resource


General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 05-11-2008
JakeH05's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jan 2008
Location: Elberton, GA
Posts: 695
cb problem

I just got my cb installed yesterday and it doesnt pick up very well.also every time i key it interferes with my screen on my dvd player and when i switch into 4wd it causes static interference for a sec when it switches. it might just be because of my cheap antenna or maybe the cb has a problem. has anyone experienced this problem or does anyone know how to fix this?
Reply With Quote
  #2  
Old 05-12-2008
Fx4wannabe01's Avatar
RF Veteran
iTrader: (23)
 
Join Date: May 2005
Location: Boring, Oregon
Posts: 21,721
Did you calibrate your SWR?? If not, you need to do that. If you are unable to calibrate, your antenna height might need to be increased. That's first thought of mine.
Reply With Quote
  #3  
Old 05-12-2008
FireRanger's Avatar  
Join Date: May 2004
Location: CT
Posts: 0
You're going to need to tell us what you have and how its installed.
Reply With Quote
  #4  
Old 05-12-2008
Fx4wannabe01's Avatar
RF Veteran
iTrader: (23)
 
Join Date: May 2005
Location: Boring, Oregon
Posts: 21,721
and how your coax is routed, and where to tied into for power and ground......etc....stuff like that.
Reply With Quote
  #5  
Old 05-12-2008
RockysFord's Avatar
Member
 
Join Date: May 2005
Location: Columbus Ohio
Posts: 2,782
IF your wired into the cig lighter... that could cause interference..

If your not calibrated right, that will cause bad reception...

If your excess antenna coax is wrapped up, that could cause bad reception...

If you have a really cheap radio, it could just be junk..

Let us know what you have..
Reply With Quote
  #6  
Old 05-12-2008
Fx4wannabe01's Avatar
RF Veteran
iTrader: (23)
 
Join Date: May 2005
Location: Boring, Oregon
Posts: 21,721
^^looks like an old midland.....ripped pic from his "cb installed" post...

Name:  cbinstall.jpg
Views: 2
Size:  73.3 KB
Reply With Quote
  #7  
Old 05-12-2008
JakeH05's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jan 2008
Location: Elberton, GA
Posts: 695
yea , the cb is an old midland model 77-104 The antenna is a magnet mount on the side of my bed. The antenna wire is run down under the truck through the drivers side frame rail then through a drilled hole in my firewall that my amp wire runs through then behind the carpet up to the back of the cb. The cb is grounded with 12 gauge wire to a body bolt. Cb power wire is spliced into the radio/dvd power wire. It might just be the oldness of the cb radio.

Last edited by JakeH05; 05-12-2008 at 05:51 PM.
Reply With Quote
  #8  
Old 05-12-2008
FireRanger's Avatar  
Join Date: May 2004
Location: CT
Posts: 0
I'm not sure what you just said. You need to describe how you have the antenna installed and how you have the power installed. And you need to use some punctuation and sentence structure in the process.
Reply With Quote
  #9  
Old 05-12-2008
JakeH05's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jan 2008
Location: Elberton, GA
Posts: 695
There i edited my post above. and if it still doesnt help i will go out and take some pics of how the wire and all is run. maybe u can get the idea from my description above
Reply With Quote
  #10  
Old 05-12-2008
Rev's Avatar
Rev Rev is offline
Level I Supporter
 
Join Date: May 2005
Location: San Diego, CA
Posts: 1,179
Quote:
The antenna is a magnet mount on the side of my bed.
Mag mounted antennas are not the best choice especially mounting to the side of the bed. Get a good antenna like a fire stick etc.

Quote:
The antenna wire is run through a drilled hole in my firewall that my amp wire runs through
Route the coax as far away from any wiring related to your Amp or stereo as you can.

Quote:
The cb is grounded with 12 gauge wire to a body bolt.
Your best bet would be to run the ground to chassis or back to the battery.

Quote:
Cb power wire is spliced into the radio/dvd power wire.
Run the power feed from the battery or from the front power lug of the BJB.

I would also make sure the CB chassis is grounded and put some type of RF shielding between the stereo and the CB making sure its grounded as well. If your still having problems you can buy an RF choke from Radio Shack.
Reply With Quote
  #11  
Old 05-12-2008
FireRanger's Avatar  
Join Date: May 2004
Location: CT
Posts: 0
The DVD interference is due to the routing of the antenna coax. That coax is probably pretty crappy (thats how they come) and it leaks RF which is getting picked up by the amp wires. It could also be RF leaking out of the CB itself due to crappy old shielding and getting directly into the head unit right there. Try re-routing the coax. If that doesn't fix it, get a new CB which probably won't have that problem. Sticking RF chokes on the head unit and amp are "maybe solutions" that will only mask the real problem a little.

The poor reception is 99% because you get what you pay for when it comes to antennas an coax. Magnetic antennas are poor performers in general. The coax they come with is poor in general. And the position you have it in magneted to the side of the bed is making it even worse. A magnetic antenna needs to be p on the roof. Otherwise, you'll need a more permanent and quality antenna installation.

For a simple run of the mill CB radio, the power and ground you are using is probably fine and will have little to no effect changing it. Grounding the radio itself as suggested is not going to accomplish anything.
Reply With Quote
  #12  
Old 05-12-2008
JakeH05's Avatar
Member
Thread Starter
iTrader: (1)
 
Join Date: Jan 2008
Location: Elberton, GA
Posts: 695
appreciate it guys ill try those things and let yall know if it fixed it in a few days
Reply With Quote
  #13  
Old 05-13-2008
Fx4wannabe01's Avatar
RF Veteran
iTrader: (23)
 
Join Date: May 2005
Location: Boring, Oregon
Posts: 21,721
yea...cb's can be sorta picky. I've got about $270 into my setup(peaked and tuned 29LTD), and about to add more to get rid of those DARN HID ballast noise/interference! lol.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
What part is this? (pic) Blower problem, this the problem? stuck on vent! ChargerOnDavins General Technical & Electrical 4 10-03-2010 06:58 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Refbacks are Off



All times are GMT -6. The time now is 02:32 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.