Top 20
Cobra 29 LTD CB Radio Questions & Answers
How to change rf meter lite
if you have a replacement meter bulb and solder skills , the bulb is in the side of the meter attached inside a rubber grommet.
How do I wire a MIC on a Cobra 29 LTD classic 4 pin mic?
would need to know the mic wire code you going to use. but half moon cut out at top as you look at it is top left 1-4 next row left side 2-3. 1 is cable/ unshield (common). 2 is MOD 3 is TX 4is RX... 1 is wire with no cover 2 is with cover rapped round wire RX is received TX is transmit, hope this helps. newer mic have different code wires so check with meter, red green and blue and shield is on some of the new wiring.
How do you set the SWR on a cobra 29 LTD classic radio
the same way you set it on any other radio.Look at the face of the set,you will see a switch that says S/RF,CAL , SWR. Now look at your meter and you will see a triangle that shows cal.Put your set on ch 1 with the switch in the cal position and bring the needle to that calibrate line on the meter by keying the mic. now release the key and set switch to SWR and key the mic again.Now write this reading down.Repeat for channels 40 and 19. If the reading is higher on 40 than on 1 you need to shorten the ANTENNA.If its higher on 1 than 40 you need to make your ANTENNA longer Always check 19 to make sure you have an average SWR. Any reading under 1.9:1 is good
How do I turn down my power on my cobra 29
This is not a user-accessible function. You would need to take the radio to a qualified repair person, i.e., a CB repair shop
If the radio power output is 4-watts or less, as measured by an accurate wattmeter connected to a dummy load, then there is no need (from a legal perspective) for reducing it.
Antenna Red Light
there are two lights for the antenna.when you are transmitting the top light will change from green to red the bottom shouldn't be on.this is the awi light. it means there is a problem with the antenna system, and you should get it checked. It could be the antenna swr ,bad coax,or the radio.Since you can't do anything with the coax or radio it has to be done with the antenna. Get a real SWR meter and check the SWR or have a tech do it. If the SWR is ok then your antenna just might be in the wrong spot ,or it may need to be grounded A tech will tell you the problem as soon as he puts his meter on it.
I am having a problem with mt cb. I used all new coax, antenna, antenna stud and mount. New mic and radio. The problem is I hook up the swr meter, keyed and the meter swung hard right. I have changed
ok, you have a high SWR.. this is what you can do.. you're gonna need to check the Radio's coax connection to see if it's loose on the Radio itself.. you're gonna have to open the Radio cover on the speaker side.. now go look at the connections on the pc board itself and see if there is a possible broke connection.. one is pcb ground, and one for the center. also, you might want to get a phillips head screw driver and gently tighten all the screws on the pc board. becareful going in there.. after this said and done, check the antenna connector itself to see if it's loose. if so, then you're gonna have to a pair of pliers to turn the nut on the inside while you use wrench to hold it in place on the outside.. now you're ready to test the radio.. don't put the cover on just yet until you see the results. set up your SWR Meter to the Radio and then set up the dummy load and do a SWR Test. if the reading is good, then the Radio is all set.. now for the Antenna.. you said that it's all new, but regardless you need to test it too.. check both ends of the cable and do a condinuity test.. get a ohm meter that has an audio sound. this will help you.. set the meter to ohms/conditnuity.. then short out the probes to get a ZERO reading/audio sound.. now take one end of the of the cable and put the probes on the connector.. one probe for the outter ground shell and the other probe to the center pin connection. if you see a ZERO reading or an audio sound, that means you have a short in the cable.. another way is to do it end to end.. put one probe on one end of the cable, and the other probe on the other end.. test the ground side first.. if you get a sound or a ZERO reading, that means you may have a short in the cable itself and may requier to remove the connectors.. some cases you might have to replace them.. remember to calibrate your meter when testing let me know how it goes.. I'll continue to help you.. you can contact me on Facebook.. https://www.facebook.com/pages/ANR-Communications-Repair/136358796473669?ref=bookmarks Good Luck..
Police 10 codes
not all the time, but the 10 codes Police Department uses are slightly different than what we used on the C.B. in todays communications in C.B. Radio, much has changed over the years and the code are hardly used, but it's nice to stay in tune with it.
When i try to calibrate my cobra 29 ltd classic the needle will not go to the right
make sure you have your radio set on CAL and then adjust the knob that says adjust .Turn it all the to the right then bring it back to the set point on the dial then un key the mic,move the switch to SWR , key the mic and that is your reading. Do this on channels 40 - 1 then 19. Make sure you write down the readings for each channel. The adjust your antenna from there.
I have a cobra 29 wx nw st cb radio I have power to cb and won't power up
Check for fuse, inside box, as well as outside under the hood. Check your ground wire, not connected...when your groundwire is not making contact to the body or other metal.. this problem will happen, or your hot wire is not connected to your fusebox...trace your hot wire to see if it is connected, if not connect to fuse box, and this might solve your problem. Hope this help!
Cobra 25 soundtracker with nightwatch
plug the external speaker into your PA jack and select the PA switch. If PA works then the audio chip is good. The cobra 29 must have a mic plugged in to get receive audio, You may have a broken wire at the mic connector.
29 ltd weak on modulation
In the form of a question???? I am assuming you are hearing it on another radio or someone has told you it is quieter. A shorted coax is more likely wattage and range reduction. Proportionally reducing audio volume.......modulation. If you have only changed antenna it could be broken or could you have put the Teflon washer on the bottom of the mount rather than insulating the antenna from the mount during installation. That would result in a direct ground. Thank for reading my blither.....take care.
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