Notices
JK CB & HAM Radios Bulletin board forum regarding all topics concerning CB and HAM radios, the installation of them in your Jeep JK Wrangler. This would include antenna mounts, wiring, tuning and usage.

Antenna failure message

Thread Tools
 
Old Oct 1, 2012 | 02:18 PM
  #1  
Jersey_Devil's Avatar
Thread Starter
JK Jedi
 
Joined: Jun 2012
Posts: 5,255
Likes: 11
From: Bellmawr, NJ
Default

I just installed my new cobra 29LX cb and Firestik 2 antenna with a 3" spring and Firestik mount.... I have a radioshak coax cable that was already in the jeep when I bought it... I ran the wire to the radio and gave it power.... The noaa weather comes in clear as day but when I test everything it says antenna warning..... Someone please help.... I have ground wire from mount to chassis

Click image for larger version

Name:	ForumRunner_20121001_181649.jpg
Views:	238
Size:	46.6 KB
ID:	373088



Click image for larger version

Name:	ForumRunner_20121001_181731.jpg
Views:	230
Size:	46.1 KB
ID:	373089



Click image for larger version

Name:	ForumRunner_20121001_181815.jpg
Views:	209
Size:	42.7 KB
ID:	373090

Last edited by Jersey_Devil; Oct 1, 2012 at 03:04 PM.
Reply
Old Oct 1, 2012 | 04:04 PM
  #2  
kbp810's Avatar
JK Freak
 
Joined: Sep 2012
Posts: 526
Likes: 1
From: Auburn Hills, MI
Default

Have you checked the SWR? I'm just wondering if that radio might have a built in meter and it might be alerting you that it's high

I'm talking out of my @&^ here though, not familiar with that radio and I'm certainly no CB expert (as apparent from my own recent thread)
Reply
Old Oct 1, 2012 | 05:49 PM
  #3  
Jersey_Devil's Avatar
Thread Starter
JK Jedi
 
Joined: Jun 2012
Posts: 5,255
Likes: 11
From: Bellmawr, NJ
Default

Yes the unit has swr calibration on it but as soon as I try to transmit a message it says " antenna warning " and when I first hooked it up today on cb mode it gave me feedback or static, then all the sudden the static stopped but the weather is nice and clear sounding, and on cb mode when I hit transmitter button it makes a noise but I get no feedback or static.. Is it supposed to be silent?

Last edited by Jersey_Devil; Oct 1, 2012 at 05:56 PM.
Reply
Old Oct 2, 2012 | 05:44 AM
  #4  
lolpetewtf's Avatar
JK Newbie
 
Joined: Feb 2012
Posts: 56
Likes: 0
From: Framingham, MA
Default

Again, what is your SWR? I have a similar setup as you but with a much better mount. I have the LX as well. Switch it to SWR mode and see what it says. No, you should get no feedback when transmitting. Is your RF gain cranked? Is your squelch at the lowest possible setting? Those with both give you white noise - it really is not called static

Did you run the self checks the CB is capable of doing? Check all connections as well.

That ground wire looks dinky as hell. The thicker the better. And don't key the mic when there is no antenna attached, you could fry your unit.

Last edited by lolpetewtf; Oct 2, 2012 at 05:49 AM.
Reply
Old Oct 2, 2012 | 06:14 AM
  #5  
Jersey_Devil's Avatar
Thread Starter
JK Jedi
 
Joined: Jun 2012
Posts: 5,255
Likes: 11
From: Bellmawr, NJ
Default

Originally Posted by lolpetewtf
Again, what is your SWR? I have a similar setup as you but with a much better mount. I have the LX as well. Switch it to SWR mode and see what it says. No, you should get no feedback when transmitting. Is your RF gain cranked? Is your squelch at the lowest possible setting? Those with both give you white noise - it really is not called static

Did you run the self checks the CB is capable of doing? Check all connections as well.

That ground wire looks dinky as hell. The thicker the better. And don't key the mic when there is no antenna attached, you could fry your unit.
I dunno what the SWR is the instructions said to set button to "cal" the turn swr knob till swr is up to where it says "cal" and the white noise is just gone completely and I can't get it back.... I wasn't trying to transmit cuz I knew it would mess it up and yes I did the system check and it says antenna failure
Reply
Old Oct 2, 2012 | 06:34 AM
  #6  
Jersey_Devil's Avatar
Thread Starter
JK Jedi
 
Joined: Jun 2012
Posts: 5,255
Likes: 11
From: Bellmawr, NJ
Default

And it wants me to hit the transmitter button for the calibration and now I'm afraid to even hit the damn button.... I don't wanna fry my radio and now I'm scared that I did since I get absolutely no white noise anymore no matter what I do i can't get it back
Reply
Old Oct 2, 2012 | 06:47 AM
  #7  
pastorwug's Avatar
JK Enthusiast
 
Joined: Aug 2011
Posts: 409
Likes: 0
From: Santa Maria, CA
Default

The SWR on your Cobra is for very fine tuning only - you have got to go get a SWR meter that you will hook up between your CB and your antennae and adjust your antennae for length.
Sad news is you may have already fried your CB.
BUT, you can't do anything until you get a SWR meter - they're available online and from Truck Stops.
Reply
Old Oct 2, 2012 | 06:58 AM
  #8  
Jersey_Devil's Avatar
Thread Starter
JK Jedi
 
Joined: Jun 2012
Posts: 5,255
Likes: 11
From: Bellmawr, NJ
Default

Originally Posted by pastorwug
The SWR on your Cobra is for very fine tuning only - you have got to go get a SWR meter that you will hook up between your CB and your antennae and adjust your antennae for length.
Sad news is you may have already fried your CB.
BUT, you can't do anything until you get a SWR meter - they're available online and from Truck Stops.
Really? U think I did?
Reply
Old Oct 2, 2012 | 07:02 AM
  #9  
Jersey_Devil's Avatar
Thread Starter
JK Jedi
 
Joined: Jun 2012
Posts: 5,255
Likes: 11
From: Bellmawr, NJ
Default

Originally Posted by pastorwug
The SWR on your Cobra is for very fine tuning only - you have got to go get a SWR meter that you will hook up between your CB and your antennae and adjust your antennae for length.
Sad news is you may have already fried your CB.
BUT, you can't do anything until you get a SWR meter - they're available online and from Truck Stops.
But the noaa weather still comes in clear as day
Reply
Old Oct 2, 2012 | 07:26 AM
  #10  
Lucas's Avatar
JK Enthusiast
 
Joined: Apr 2011
Posts: 464
Likes: 0
From: Corinth, tx.
Default

If your fry cb will you still be able to hear talking from others. And weather channels?
Reply



All times are GMT -8. The time now is 03:16 AM.