cb problem
#1
Join Date: Jan 2008
Location: Elberton, GA
Posts: 695
Likes: 0
Received 0 Likes
on
0 Posts
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?
#2
#5
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..
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..
#7
Join Date: Jan 2008
Location: Elberton, GA
Posts: 695
Likes: 0
Received 0 Likes
on
0 Posts
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 04:51 PM.
#8
#9
Join Date: Jan 2008
Location: Elberton, GA
Posts: 695
Likes: 0
Received 0 Likes
on
0 Posts
#10
The antenna is a magnet mount on the side of my bed.
The antenna wire is run through a drilled hole in my firewall that my amp wire runs through
The cb is grounded with 12 gauge wire to a body bolt.
Cb power wire is spliced into the radio/dvd power wire.
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.
#11
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.
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.
#13
Thread
Thread Starter
Forum
Replies
Last Post
ChargerOnDavins
General Technical & Electrical
4
10-03-2010 05:58 AM