Typical telecommunication reply!!

 

Not trying to be a ahole but its just another challenge for the RF dept

 

Alrite man. You're starting to hijack my thread now and I noticed you have your own thread going separate from mine. I appreciate that we have the same issues and should work together to get this solved but I'd appreciate it more if you didn't piss off anyone trying to shed some "rf" knowledge on us. Lets keep my thread productive please.

 

I did start my own thread and was referred to yours and yeah I'm done here thanks for the productive answers on here to those that are trying to help and not the obvious answers good luck on your end
I just wanted to shoot out that there are also this problem non permeant CB mounted related to help not drive those crazy chasing the obvious " ground " and "power" connections

 

Believe me I do not have all the answers to EMi problems nor do the pros, and I to created a post for help to deal with RFI issues.
EMI is a weird problem and has many ways to be solved. radiation susceptibility or RS is one that is caused by interference from RF outside sources.

It's amazing what a good ground can solve in the world of EMI.

That is usually the best place to start when dealing with any EMI issues.
The electronics CCA's may have a worse ground on one Jeep vs another causing more issues on one Jeep then another.

So even though your problem maybe caused by a CB mounted on the Jeep or a CB used on another Jeep or a hand held one the ground system is where a lot of HAMs and electronics people will tell you to start.

Just trying to help with the little knowledge I do have, via HAM experience and some Job experience.
Take it as you may.

Good luck on both Jeeps problems.

also do a search there are a lot of good threads on this exact subject. read through them and take what you need.

Cheers
and Happy Jeepin

 

BubbaJK2012,

here is something you can try.
Do you have a CB setup on the Jeep? if you do, take your hand held CB and duplicate the interference. Than remove your Jeeps Antenna, Coax from CB etc, and see if the interference goes away. You need to be in the same spot with your hand held CB while doing this since different transmission spots will act differently. When you have your Jeeps CB system disconnected, do it in steps antenna first then disconnect the coax, and if the interference goes away this tells you where to start. The CB system on the Jeep might be picking up the transmission and causing the problem. If this does help, start working on fixing the CB setup of the Jeep first. and yes your favorite word, Bonding...
if it isn't well I have no other thought for you at the moment other then bonding.

Seriously this is what I would do if it was my problem.

good luck

 

Yeah and I'm thinking Chrysler security systems in the jeeps are having receiver crystal issues and is allowing the receiver to deviate other frequencies

 

What about the converter box??? (Cobra 75 only.) Could it be where the converter box is mounted? There has to be alot of RFI emission when the mic is keyed. The closer the converter box is to the dash, the stronger the emissions....or chances of interference. What if you tried moving the box as far away from the dash as possible....maybe under one of the seats? Since the converter box has a positive, negative, coax connection and mic connection - I'd think it would be very important to make sure all the connections are tight. Maybe it would help to ground the converter box case as well?

I'm guessing operating a handheld inside the Jeep would cause interference because the antenna is inside the Jeep when transmitting. So this probably isn't helpful in trying to solve the mounted CB's problem. (Unless the handheld was hooked up to an external antenna that was properly grounded.)

Just throwing some guesses out there for consideration.

 

Yeah my handheld does the same as my cobra base mounted on my dash.
Power and ground run directly to battery

 

Ok this has officially been taken to a whole new level. I was driving tonight on a pretty empty highway and when I went to pass an 18 wheeler, BOOM! I lost my dash, fogs turned off, radio gone, wiper on, you get the idea... My cb was off! What signal did Chrysler send out to tell our jeeps to reject any mods possible?! It's bad enough we can't tune 2011+ but please let us enjoy our rigs! I'm bonding everything tomorrow an crossing my fingers otherwise starting price for my whole cb set up is 100 bucks..