iFixit - Answers With Device "CB Radio"

CB Radio: no transmit but shows good output

Tue, 13 May 2025 18:22:23 -0700

cobra 29 ltd wx classic, good receive no transmit.showes it has good signal but no one hears it

⟐ Answered May 13, 2025 at 18:22 MST

Cobra 29 LTD Classic: My rx/tx light turns red

Sat, 09 Aug 2025 09:13:20 -0700

When I key my mic the rx/tx light turns red. When I unkey it turns back green. I also cannot recieve anything coming in nor can I get out. Please let me know what you think

⟐ Answered August 09, 2025 at 9:13 MST

Cobra 29 LTD Classic: turns on but wont key up.

Wed, 22 Jul 2020 05:29:05 -0700

My radio turns on but ever time i try to key it, it never read on the meeter or the red light never comes on. It do this every now and then so it works when it wants to i guess. Just would like to fix it since i need it for work. Thanks.

⟐ Commented July 22, 2020 at 5:29 MST

Kenwood TM-241a: Memory problems, erases when radio is turned off.

Fri, 28 Nov 2025 04:36:04 -0700

My Kenwood tm-241a has a new battery and still doesn't keep the memory. I program the memory and it will work until I turn the radio off for more than 3 seconds then it erases the memory. I replaced the 2032 battery and still same problem. How can I fix this?

⟐ Commented November 28, 2025 at 4:36 MST

Cobra 29 LTD Classic: Why do fuses keep blowing on cb

Tue, 11 Jun 2019 19:11:32 -0700

Im trying to hook up my cb in my 2014 International. Having to hard wire seeing the connecter dosent match one in truck. Im using a 3 amp in line fuse but it keeps blowing. What am i doing wrong? Thanks

⟐ Commented June 11, 2019 at 19:11 MST

CB Radio: Wiring diagram and colors for Cobra 29 LX Max microphone.

Thu, 07 Dec 2023 09:50:38 -0700

All of the wires came unsoldered from the plug on my microphone for my Cobra 29 LX Max. When I take the microphone apart, it appears the two extra wires are for:

Yellow = Extra microphone for the phone audio.

Green = Possibly data for the three buttons on the front. Such as Repeat, Report and Bluetooth.

From watching videos online, I can probably figure out the other four, but I’m not sure how to test for the extra Mic and Bluetooth on the radio side. Not sure which pins they go do. The only pin I’m sure about at the moment is ground is pin #1 as it’s the only one that didn’t get broken off.

⟐ Answered December 07, 2023 at 9:50 MST

CB Radio: How do you connect the loose wire to a cable to plug into a car

Wed, 30 May 2018 22:30:56 -0700

I just purchased a Cobra cb and was told (i guess because I am a woman that it would plug into the car cigarette lighter plug but when I got it home it has two wire and nothing to plug it into

help me please

⟐ Comment deleted May 30, 2018 at 22:30 MST

Cobra 29 LTD Classic: Why does it quit sending and receiving

Fri, 01 May 2020 03:23:46 -0700

corba cb at times wont transmit or receive then it will start working again

⟐ Answered May 01, 2020 at 3:23 MST

CB Radio: How do you expand the frequencies on a general hp 40 w

Sat, 25 Mar 2017 13:41:25 -0700

Want to convert my hp 40 w

⟐ Answered March 25, 2017 at 13:41 MST

Cobra 29 LTD Classic: blown internal fuse or link

Fri, 01 Jul 2016 04:31:32 -0700

positive and negative touched and blew something inside

⟐ Answer accepted July 01, 2016 at 4:31 MST

Cobra 29 LTD Classic: Won't calibrate the radio to antennae, gauge won't reach the mark

Thu, 01 Oct 2020 20:42:08 -0700

When I try to calibrate it it makes it about 3/4 over to the mark, but won't make it all the way. Does anyone have any ideas?

It was neither SWR or modulation I was just calibrating the radio to the antenna.

⟐ Edited by author October 01, 2020 at 20:42 MST

Kenwood TM-241a: Help with disa activation code?

Mon, 18 Jun 2018 11:19:19 -0700

It is model WS1010 Radio Scanner and Serial number is 0038275 and DISA number is 1004030777. My mom buys a bunch of random stuff around christmas time and gives them out as gifts to random people. Usually stuff on sale or clearance. This was left over from our last christmas and I asked for it. There is no receipt and I already tried get your code but that says there was no sale record. I sincerely doubt my mother is a thief. Is there a way to get the 6 digit activation pin?

⟐ Reopened June 18, 2018 at 11:19 MST

Kenwood TM-241a: Bypass DISA activation code?

Mon, 18 Jun 2018 11:19:18 -0700

My mom buys a bunch of random stuff around christmas time and gives them out as gifts to random people. Usually stuff on sale or clearance. This was left over from our last christmas and I asked for it. There is no receipt and I already tried get your code but that says there was no sale record. I sincerely doubt my mother is a thief. Is there a way to get the 6 digit activation pin? It is model WS1010 Radio Scanner and Serial number is 0038275 and DISA number is 1004030777.

⟐ Reopened June 18, 2018 at 11:19 MST

CB Radio: I can transmit but reception is silent

Sun, 25 Jun 2017 11:21:03 -0700

I can transmit but cannot hear anything, no squelch, no static, completely silent. i even tried an external speaker and still silent.

⟐ Answer deleted June 25, 2017 at 11:21 MST

CB Radio: CB not transmitting or receiving very far and is intermitent

Sat, 16 Sep 2023 11:11:44 -0700

CB not transmitting or receiving very far and is intermittent . All settings seem to be fine, aerial is only 12 months old. Connections seem fine. Any chance you could suggest a remedy or fix please?

⟐ Commented September 16, 2023 at 11:11 MST

CB Radio: Radio Blowing a Fuse

Sun, 19 Mar 2023 20:02:09 -0700

Reposted for @matty77204:

I have a cb radio a COBRA 148F GTL am ssb with freq counter so it use to work i could plug it in and it work One day i got stupid and hook the power cord up to the 148F GTL and stuck the power cord into the power cord strip surge protector and it blew the fuse and i pulled the wires out a day later i replaced the fuse in the power cord and hook my cobra 148F GTL and it turn the radio on nothing but it blows the fuse in the line i then changed the fuse and hook my other COBRA 29 LTD bluetooth up it turns on off display works fully working so i was wondering if you know the cause of why my cobra 148F GTL wont turn on and when i turn it on it blows the fuse all the time.. Looking for answers. Thank you for your time... Matt

⟐ Commented March 19, 2023 at 20:02 MST

CB Radio: CB Radio not functioning - white noise only

Wed, 26 Oct 2022 01:27:18 -0700

I’m trying to get a CB radio (~27MHz) up and running but I’m a bit of a novice. I believe I have the correct equipment, but on all 40 channels I only get white noise of varying strengths. I live in the middle of a city so I would expect to hear something. I will list my equipment below in hopes that that is the issue, other wise I am open to any troubleshooting steps people have in mind. Thanks in advance!

Radio: Uniden PRO505XL - Amazon page no longer exists

Power Plug: Roadpro 12V Fused Replacement Cigarette Lighter Plug with Leads - RPPS-225 - https://www.amazon.ca/gp/product/B0016LG...

AC to DC Adapter (for use in house): AstroAI AC to DC Converter, 10A/110Vto12V DC/120W/7.78FT - https://www.amazon.ca/gp/product/B07JGS8...

Antenna: Bingfu CB Antenna 27MHz CB Radio Antenna Soft Whip Magnetic Base CB Antenna BNC & PL259 - https://www.amazon.ca/gp/product/B086YYW...

⟐ Answered October 26, 2022 at 1:27 MST

CB Radio: Cobra 29 CB radio microphone pins are loose

Mon, 05 Feb 2018 01:43:36 -0700

Help me to fix loose plans for microphone

⟐ Answered February 05, 2018 at 1:43 MST

CB Radio: Wrong side band ( upper or lower )

Wed, 19 Oct 2016 11:55:22 -0700

Hi, just purchased a midland power max and it appears to be on the wrong side band , is this a easy remedied fix or will it have to go to a specialist ?

⟐ Commented October 19, 2016 at 11:55 MST

CB Radio: President HR2510 CB radio display turns on but no channels showing

Wed, 30 Apr 2025 08:01:09 -0700

Recently bought this Uniden President HR2510 amatuer radio. I am trying to turn it on and it seems to at least power on, but the display shows no channel and no bars from the audio system. I attached a photo of what it shows. I did some research and maybe it was the old brownish glue that is causing a short? So I took the time to take it off in different areas. But still same issue. Any ideas on what to look for? Below is a photo of the current display when I turn it on. I tried a "master reset" but nothing happens.

⟐ Answer accepted April 30, 2025 at 8:01 MST