Another CB question

JayKay

JayKay

Caught the Bug
I just got done installing a 4' Firestik Firefly. I already had 18' coax ran and CB installed. I acquired two free antennas which both ended up being bad so I pitched them. I went without an antenna for a month (so I didn't use my CB for a month). During that month I installed an amp and a factory sub enclosure. The amp is under the passenger seat and the sub is in the factory location. Coax is ran through the passenger roll bar padding and across the top of the windshield to the CB above the rearview mirror.

After getting the antenna installed on the spare tire carrier I get radio interference in the CB. If I unhook the coax from the back of the CB, the interference goes away. The thing that has me confused is that the only place any of the new audio wiring is close to the coax is where it comes out of the tailgate and into the sub enclosure trim panel. I unhooked the subwoofer leads at the amp and the interference is still present.

The coax I have is used also. Should I get new coax with high shielding?
 
Rccrwlr

Rccrwlr

New member
JeepKeeper said:
I just got done installing a 4' Firestik Firefly. I already had 18' coax ran and CB installed. I acquired two free antennas which both ended up being bad so I pitched them. I went without an antenna for a month (so I didn't use my CB for a month). During that month I installed an amp and a factory sub enclosure. The amp is under the passenger seat and the sub is in the factory location. Coax is ran through the passenger roll bar padding and across the top of the windshield to the CB above the rearview mirror.

After getting the antenna installed on the spare tire carrier I get radio interference in the CB. If I unhook the coax from the back of the CB, the interference goes away. The thing that has me confused is that the only place any of the new audio wiring is close to the coax is where it comes out of the tailgate and into the sub enclosure trim panel. I unhooked the subwoofer leads at the amp and the interference is still present.

The coax I have is used also. Should I get new coax with high shielding?
Click to expand...

Grounding. Check your grounds on the cb, amp everything


--rccrwlr
".....and that's it baby!"
 
t8er

t8er

New member
I routed mine on the same side in my JKUR. No interference at all from the speaker there. First step is check your ground then look at the coax cable.
 
JayKay

JayKay

Caught the Bug
Rccrwlr said:
Grounding. Check your grounds on the cb, amp everything


--rccrwlr
".....and that's it baby!"
Click to expand...

I forgot to mention that there was no static or interference before the amp install when using a Wilson antenna my dad borrowed to me. The CB is grounded to a factory ground beside the dash. I read about running a second ground from the body of the cb to a chassis ground. Is this what you're referring too? I could be wrong, but I don't see it being a power/ground issue since the interference goes away when the coax is unhooked from the back of the CB
 
Rccrwlr

Rccrwlr

New member
JeepKeeper said:
I forgot to mention that there was no static or interference before the amp install when using a Wilson antenna my dad borrowed to me. The CB is grounded to a factory ground beside the dash. I read about running a second ground from the body of the cb to a chassis ground. Is this what you're referring too? I could be wrong, but I don't see it being a power/ground issue since the interference goes away when the coax is unhooked from the back of the CB
Click to expand...

Is there extra coax cable? Did u coil it up nice? Maybe the prob. Need to make a mess of things so you don't create a coil


--rccrwlr. ".....and that's it baby!"
 
JayKay

JayKay

Caught the Bug
Rccrwlr said:
Is there extra coax cable? Did u coil it up nice? Maybe the prob. Need to make a mess of things so you don't create a coil


--rccrwlr. ".....and that's it baby!"
Click to expand...

No extra coax, the only place it coils is at the tailgate, but even with the gate open, still get noise. :idontknow:
 
sean.m.adams33

sean.m.adams33

New member
I know, I know, this guy should just give up on cb installations all together, but hear me out this time....
I got this firestick coax cable,
ImageUploadedByWAYALIFE1406956517.679004.jpg
(Poor quality pic from google search)

I honestly have no idea how to install the end that goes into the back of the cb.
Please someone, help me. I hate CB's!!
 
Looney Tune

Looney Tune

New member
The PL 239 connector screws into the back of the radio. ..pretty self explanatory. ..unless you have some funky coax...after all you did say it was (fire stick)...lol.

Sent from my SAMSUNG-SGH-I547 using WAYALIFE mobile app
 
branman

branman

-
sean.m.adams33 said:
It says to make sure to solder it. Where?! Also it doesn't seem to screw on to my cb! I think I may have the end backwards but it seems like it only goes one way.
Click to expand...

It really can only go one way.. Thread the connector onto the cable, the big outer knurled knob should spin freely the insert the pointy end into the CB you have to push it in a bit to get the threads to engage then thread the free spinning section into the back of the CB.

I have the same cable and no need to solder.

Maybe take a picture of your cable / connector / back of CB
 
sean.m.adams33

sean.m.adams33

New member
branman said:
It really can only go one way.. Thread the connector onto the cable, the big outer knurled knob should spin freely the insert the pointy end into the CB you have to push it in a bit to get the threads to engage then thread the free spinning section into the back of the CB.

I have the same cable and no need to solder.

Maybe take a picture of your cable / connector / back of CB
Click to expand...

I will definitely take some later today when I finish the install. It thread PM's but only a thread and a half at most, I think it might even be more like half a thread!
 
sean.m.adams33

sean.m.adams33

New member
branman said:
Well that does like the soldier type. Mine has a closed end that just went right in. It would appear they gave you a solder connector for and a pre built cable.

Did the coax have a small threaded end to screw into the pictured connector?
Click to expand...

Nope. Nothing like that
 
sean.m.adams33

sean.m.adams33

New member
Yup. I definitely have the wrong one. Thanks guys for your help. I will pick up a new one. Looks like the CB will continue to be the bane of my existence.😩
 
RJEEPO

RJEEPO

New member
you almost there, just need the right connector check check!

as I recall the only part that gets soldered is the very tip to secure the inner conductor to the tip of the connector?
 
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