Cobra Radio Communications - Recent Questions, Troubleshooting & Support

1) violet 2) blue 3 ) shield 4) yellow 5) grnd Violet inside the mic is the power wire . Blue and yellow are the internal and external speakers. the other wires are to the antenna

Cobra 29 LTD CB... | Answered on Jun 10, 2019


try to make a reset to the system,

computer, router and the camera,

usually by disconnecting from the main and reconnecting

Cobra Radio... | Answered on May 24, 2019
You watch this video and check your power output specially on those channel at chich not transmitting, if there is no power at those channel it mean that you program out of range radio band frequency, so you check your frequency and correct it.

Cobra 200 GTL DX... | Answered on May 22, 2019

It is very likely that the reverse polarity diode inside the radio is shorted, usually because the radio was connected up incorrectly.

Cobra 148 GTL... | Answered on Apr 21, 2019

Generally the higher your mic gain is set, the higher the modulation level. You want to avoid splatter by not setting the mic gain too high.

Cobra Radio... | Answered on Apr 08, 2019

' Move the antenna angled forward ' Freightliner cascadias have powered driver and pass windows plus a thermostat inside the mirror arm ,The motors and electrical wires produce a EMF bubble that will disfigure the RF and absorb the energy. If you mounted the antenna to the mirrors arm with a bracket, just keep pushing it forward untill it passes the test.

Cobra 29 LX... | Answered on Mar 25, 2019

I have the same walkie talkies and on mine I can hold down the mode/lock button and it will come off of the Rx mode. Also, you should be able to press the talk button and it will come off of the Rx mode.

Cobra... | Answered on Mar 15, 2019

Most likely, you have no 'voice' signal coming from the microphone. The MODulation control did not turn itself.
Check for signal from the shielded or white wire from the mike.
A capacitor could have shorted in the modulation limiter circuit, limiting the modulation to 0%.

Cobra Radio... | Answered on Mar 02, 2019

10 of what looks like AA NiCads. Open the cover and look.

Nickel Cadmium (NiCad) Batteries:
Batteries with 700 mAh minimum recommended.
Top Grade NiCad batteries can be ordered direct from Cobra. See page 22 for details.

Page 22 shows 10xAA batteries at $4.00 each. Try for a much better price on 10. Get Nickel Metal Hydride as well as they have no 'memory effect' that NiCads have.

Cobra Radio... | Answered on Mar 02, 2019

Try going to You'll find most of your answers there, and more.

Cobra Radio... | Answered on Feb 10, 2019

I am not sure just what is stuck, the button or the switch itself. If it is the button, try swabbing it with a Qtip soaked in Isopropyl alcohol to loosen any grease or dirt that may be causing the problem. You might want to open the case and remove the guts, being careful not to break any wires. If the button can be removed, clean it thoroughly and put the thing back together.

If the switch is shot, then you probably should just purchase another radio. Unless you are a micro surgeon, you probably won't be able to replace the switch yourself. A new radio is less expensive than taking yours to a shop for repair.

Cobra Radio... | Answered on Feb 10, 2019

What is the swr? This can impact the receiver. However, the tuning coils for receive and transmit are close to each other and someone most likely turned the receive coil instead of the transmit coil. The coils that are adjustable that affect receive are 13, 15 and 3. 3 is the coil that is close to the transmit section. You may want to have it realigned.

Cobra Radio... | Answered on Jan 31, 2019

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