Question about Cobra 29 LTD CB Radio

1 Answer

I set the swr on my antenna and it keeps moving i have a cobra 19 dx iv and i just installed a net window mount antenna 27" on my back window that has factory tint.

Posted by on

  • audio20
    audio20 May 11, 2010

    Clarify Moving, some factory tint has metal fibers which will kill you SWR

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Guru:

    An expert who has written 7 tips or uploaded 3 video tips

  • Master
  • 773 Answers

1) if you are talking, your SWR will most likely move. You must take the reading while not modulating, (talking into the mic)

2) Window mount antenna's are GARBAGE. they are worthless. BAD BAD BAD. You wasted your money. Get a mag mount.

3) if you are not in an open lot, your SWR's will be different due to structures reflecting signal back. Always take your SWR reading in an open lot.

4) You could be experiencing Common mode currents. Normally the signal travels on the inside of the coax ground. Common mode current is when the signal is traveling back down the coax on the outside of the ground in the coax. (The biggest cause of this would be the window mount antenna). If you want to keep that garbage antenna, then you can make an RF choke in the coax. The best solution is get a better antenna. Here is how to make the choke. As close to the antenna as you can, take 6 ft of coax and loop it uniformly laying each coil next to the other. use electrical tape to hold it in place. You want 6-8 wraps. You want a nice uniform coil.


Just get a better antenna. Window mounts are the worst. You get horrible receive and horrible transmit. Get a wilson 500 mag mount. It will work so much better for you.

Posted on Apr 24, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My cobra 19 dx Iv has no volume


adjust the SWR and you may just find your volume

Feb 05, 2014 | Cobra 19 DX IV CB Radio

1 Answer

2 out of 5 signal reading on cobra cb radio


You'll need to find another CB radio for someone to check to see if they are receiving your transmission.

Aug 16, 2012 | Cobra 19 DX IV CB Radio

1 Answer

How to set up the cobra 19 DX IV CB Radio


first keep the manualhandy for the radio and antenna you are using. start by finding a good mounting point for the radio. install the bracket and cheeck the fit with the radio. next run the included power cord from the back of the radio to the fuse box. don't plug it into the radio yet. take the black wire and ground it to metal. try to find a screw goofyinto the metalof the car and loosen it, wrap the wire o. it and tighten it. next find thefuse for the stereo. pull it out and press I back inwith the red wire getting pushed into the fuse socket with the fuse. now you can plug in the radio. IMPORTANT! do not plug it in backwards. if you do you will blow out a diode in the radio and it will not turn on until repaired. turn the key on and then the radio. make sure it powers up BUT DO NOT KEY THE RADIO YET or you will damage it. the radio must never be keyed withough an antenna connected. mount the antenna as close to center of the car as possible le and according to theantennas instructions. run the coax to the radio and connect it tightly. now you need to tune the antenna for best SWR. there is a section in the radios manual and the antenna.manual that explains how to do this. rather then me type it all out you should have detailed I.structins already. if not let.me know and I will ppart it. after the swr is tuned for lowest you are ready to talk on the radio. enjoy.

Jul 01, 2011 | Cobra 19 DX IV CB Radio

1 Answer

Cobra 19dx iv when i key up it swings all the way to a 9 is there any way to set swr,s without a meter


Just buy a factory built antenna/(it should be close) Buy you a magnet mount RADIO SHACK job(works). If your indoors buy ANTRON A99(set at 1.3 SWR factory). If it keys 9 db then that equals 4 watts output thats OK.

Apr 02, 2011 | Cobra 19 DX IV CB Radio

1 Answer

No transmit & little audio


What are the SWR's at? Have the every been checked? Chances are if you have never checked them, and don't know what an SWR is, then your transmit is blown out of the radio.

Yo need to tune the antenna length on every antenna for a cb radio. If it is not the correct length then you get what is called reflect. that is signal that doesn't radiate off the antenna and is reflected back to the radio and blows the transmit out.

Feb 19, 2010 | Cobra 19 DX IV CB Radio

1 Answer

High SWR


the problem is in the antenna cable. the lenth of a antenna cable must be divisable by 3. try replaceing cable with a 18 foot cable that should fix the problem.

Apr 11, 2009 | Cobra 19 DX IV CB Radio

2 Answers

Static and Recieving Problem


make sure people are talking on the channel it may be no one is talking . the static tells you it is receiving something. the cobra 19 and sister radio magnum sold at wallyworld are notorious for having bad solder joints on their boards.

Aug 27, 2008 | Cobra 19 DX IV CB Radio

1 Answer

Cobra 19 DX IV


No, those radios are good radios. I have one just for setting swrs on antennas.

First, I went back and read your last question. You said you have a nylon washer on top AND bottom? Did you mean one under on the top and bottom side of the antenna mount? You only need theone on the top of the antenna mount, which stops the antenna itself from being grounded out. Having one on the underside stops the outter part of the stud, the one that touches the outer screw on part of the coax from being grounded. Without that getting a good ground, you have no groundplane, which will cut your tx/rx to a max of 2 miles. Also, how close is the two setups. Many times, if two vehicles are setting next to each other, you will not receive or transmit properly, just get a nasty garbled with a hint of a squeal.

If this doesn't help, please reply here or shoot me an email at:

rollincbmods@yahoo.com

Dean Pitts
Rollin CBs
Mt. Vernon, TX

May 15, 2008 | Cobra 19 DX IV CB Radio

1 Answer

CB transmission


Hello 64driver,

Make sure the radio is grounded properly and that the SWR is around 1.2:1, 1.3:1 is good but try to get it to 1.2:1. Also take a power output reading while keying the mic. To do this with your power meter put it in-line with the CB and your antenna and key the mic you should get about 4 to 5 watts PEP. If this is the case your unit is putting out the proper power level, if not have the power amplifier checked by a qualified repair shop.

I hope this helps

Shuttle83

May 13, 2008 | Cobra 19 DX IV CB Radio

1 Answer

Cobra 19 dx lv


Sounds as though you may have a poor or bad antennas system. I would suggest to check the antenna match ( SWR, Standing Wave Ratio) and if it's good, you might think about a better antenna. Good Luck
Ed
NC Electronic
Mills, Wyoming

Oct 24, 2007 | Cobra 19 DX IV CB Radio

Not finding what you are looking for?
Cobra 29 LTD CB Radio Logo

145 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cobra Radio Communications Experts

AnyMHz.com
AnyMHz.com

Level 2 Expert

500 Answers

Brad Brown

Level 3 Expert

15950 Answers

yadayada
yadayada

Level 3 Expert

76630 Answers

Are you a Cobra Radio Communication Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...