20 Most Recent Cobra 25 NW LTD 40-Channels Base CB Radio Questions & Answers

first make sure its on cb not pa. next make sure the squelch is all the to the left. now make sure your volume is open enough not to blast. If you can hear anything you are good if not you need to take it to a tech.

Cobra 25 NW LTD... | Answered on Nov 25, 2014

Older cobra version registry how i remove from task bar

Cobra 25 NW LTD... | Answered on Mar 20, 2010

Your radio could be over driving the amp or the antenna is allowing RF feedback. I would get rid of the amp and or antenna.

Cobra 25 NW LTD... | Answered on Feb 13, 2010

have your antenna checked, the powers not getting out the antenna so its feeding back thur the radio

Cobra 25 NW LTD... | Answered on Jan 01, 2010

Center pin goes to R115 right leg goes to C84
witch leads to the base of TR10 left leg to
ground.this is off aschematic of 25 LTD should
be close.
Good luck

Cobra 25 NW LTD... | Answered on Sep 16, 2009

The calibrate knob only calibrates the radios SWR meter, the owners manual will show you the procedure for that. If your ANT light is coming on, it is telling you that your SWR is to high, and may cause damage to the radio from reflected power. You should purchase an in line meter as the radios internal meter may be somewhat unreliable. You need to tune the antenna to the lowest SWR possible. Typically anything under 2.0:1 is acceptable. Radio Shack sells a meter for about $50, and is pretty accurate. Antenna mounting can also cause high reflection if it is to close to other objects. Google "CB antenna tuning" or read the instruction manual for you antenna, and you should be able to figure out how to properly tune the antenna.

Cobra 25 NW LTD... | Answered on Jul 07, 2009

It is very likely that you haven't got the same CTCSS or DCS codes matched. Try turning them off on both radios.

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

The squelch control is probably damaged. They aren't very sturdy. Controls on radio's these days don't take a lot of abuse. Luckily, the replacement parts can usually be found on EBAY and aren't expensive but you will have to install it yourself or take it to a shop and have it done if you aren't technically inclined. It's not a difficult job to do but a shop will still probably charge more than the radio is worth to do the repair. If you can find a HAM nearby, you might be in luck.

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

It's likely that a bulb has died. This isn't an expensive repair although a radio shop probably won't look at it for at least $75. If you are talking about the display being out, that could be expensive. If the radio is old, then the part probably isn't available anymore. It may be possible to fit something else into the display. I am not familiar with this particular radio. The likely problem is a burnt out series resistor or more likely a bad solder joint on the digital display. THAT should be an easy fix.

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

The display may have failed.

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

That's a confusing question. Device id is the FCC device ID number and means it has been approved to transmit in the USA. It has nothing to do with model. So, in terms of a radio device, it means nothing to a tech or a way to get parts or even a battery. The device ID is typically located on the back of a radio or under the battery. Could you ask what you are looking for?

Cobra Radio... | Answered on Oct 04, 2019

Hi Anonymous, as you say, your batteries have little or almost no charge capacity
That's why the charger lights remain on
Simply replace the batteries.
I hope you can solve the problem
Greetings Franco Dosil

Hola Anonimo, por lo que comentas, tus baterias tienen poca o casi nula, capacidad de carga
Espor eso las luces del cargador permanecen prendidas
Simplemente, reemplaza las pilas
Espero puedas resolver el problema
Saludos Franco Dosil


Cobra Radio... | Answered on Sep 26, 2019

the issue is that this radio has an audio boost control function, Dynamike. That is likely the issue, the two are working against each other. You can see if the power mic you have will work if you dial the Dynamike all the way down, but you might have to live with the stock mike.

Cobra Radio... | Answered on Sep 24, 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 Sep 13, 2019

If it "keys up" without a mic plugged in, try plugging the mic into the radio and see if it stops. Some radios require the mic to be plugged into it to operate properly. If it is keyed up with the mic plugged into it, try unplugging the mic and see if it stops. If it does stop when you unplug the mic, either the switch in the mic is stuck/went bad or there is a wire shorted in the mic cord to radio plug. Make sure pins 3 and 4 on the mic plug are not shorted. A continuity meter will tell you. If the mic is keyed, pins 3 and 4 will show a short, if the mic is not keyed, pins 3 and 4 should not show a short. If the mic is functioning normally but the radio is still keyed up then there is something in the radio that is shorted.

Cobra Radio... | Answered on Aug 29, 2019

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