/r/cbradio

Photograph via snooOG

A place to talk about CB radio: how to use them, how to install them, and how to get them working their best. Drop in to rag chew or just come check the mail. Either way drop by and say hi. That's a big 10-4, good buddy!!!

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The CB Radio Reddit

For everything CB and Public Radio whatever the band may be!

We have an IRC channel where you can arrange skeds and nets or have a chat, details are :

irc.freenode.net #redditcb

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Related Subs

/r/AmateurRadio - Everything HAM.

/r/Jeep - For all your Jeep needs.

/r/GMRS - Info on the GMRS radio service

/r/VEDC - For talking about the things we keep in our vehicles. From first aid kits to firearms.

/r/Truckers - A sub for the asphalt cowboys.

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CB Radio F.A.Q.


  • Where should I buy my radio from?

Check out your local CB Shop for new items, as well as garage sales. Of course Amazon and Ebay can be very helpful.


  • Why can't I hear anyone/anyone hear me?

Make sure that your antenna is fully plugged in and that your radio is receiving power. If you just installed your radio, you will want to make sure that your antenna is tuned properly to the location that it is installed in. This helps reduce the standing wave ratio (SWR) to proper levels.

An SWR of 1:1 is perfect and almost impossible to achieve outside of a lab.

1.1-1.5:1 is considered perfect under real world conditions.

1.6-2.0:1 is Average with room for improvement.

2.1-2.9:1 means you need to tune your antenna some more.

3.0:1 and above is dangerous for your radio and could lead to damaging the radios internals.


  • How do I know what my SWR is?

You can use one of two methods to check your SWR: an antenna analyzer or a stand alone SWR meter.

Both are acceptable, but the antenna analyzer is the best method, giving more accurate results. Any good CB shop will have one.


Please check out the sidebar for frequently asked questions.

/r/cbradio

19,211 Subscribers

3

President Washington

Where to take a president Washington for alignment? Southeast.

4 Comments
2025/02/03
03:51 UTC

10

111111111111111 is on in full force today up in canada on 38lsb

5 Comments
2025/02/02
21:24 UTC

74

New radio

Just ordered this radio the other night for my new company truck at work, was running a cobra 29ltd before. Will I notice that much a difference? Also how many truckers sit on sideband and would it be upper or lower? Sorry I’m a noob lol.

26 Comments
2025/02/01
23:50 UTC

2

Cobra 19 mini Am/Fm and Scosche magnetic cb antenna questions

Good afternoon everyone. I recently was given as a birthday present a Cobra 19 Mini and a Scosche magnetic cb antenna 22 inch. It seems like the Cobra is working fantastic but I'm not picking up any signal at all. Is there something I'm missing? I've tried the Cb with another antenna and it picked up signal from my house. So I was wondering if there is a step I'm missing on hooking up the antenna with the cb or did I set up the antenna wrong even? First time Cb user here to add. Thank you for all your help and for wasting time reading this.

4 Comments
2025/02/01
19:58 UTC

5

Boston Area - (Pink Floyd) Is There Anybody Out There

Anybody! Just want one radio check and I’ll wait another 40 years for another one. LOL

2 Comments
2025/01/31
10:24 UTC

9

Coast to Coast AM listeners …. walkie-talkie ✨

What is the handheld walkie-talkie thing that George Noory always pitches on his show? Anyone familiar with it?

17 Comments
2025/01/31
01:07 UTC

11

Help repairing a Cobra Classic 29LTD

I have had this 29LTD for a long time now. It hasn't worked in years and I just pulled it out to see if I cant get it running. I plugged it into my bench power supply and set it to 12v DC and it will only pull 5v and seems to want to just take max amps but I have amperage limited. I pulled and checked the reverse polarity diode and it was fine so I reinstalled that. With the power switch off I have 12v at the plug but as soon as I turn power on the voltage drops to 5v. I have pulled a few components around the board and found that no matter what I remove I get 5v. I'm about to remove the AF Amp chip as I found it was getting super hot however it is also on a heatsync. I am at a lost. No display, no audio no nothing. I also found some smd components on the bottom of the board so I'm wondering if it's been modified.

Anyone have any ideas?

12 Comments
2025/01/30
23:49 UTC

5

???????

Sorry I don't even know what to title this and I do apologize in advance due to the fact that I am new to the radio game and still learning about the frequencies and trying to get a grasp on everything so I have a president Lincoln 2 plus I am running an inside unfortunately in an apartment with the antenna being on the back patio I know obviously not optimal so yesterday while trying to tune my antenna with the SWR meter which by the way was unsuccessful the antenna I had the whip couldn't be trimmed but I had good receiving yesterday and after all day of trying to tune/ trim "I dont know proper term " my antenna so this morning when I go to my CB radio I can barely hear anything but static now and on channel 38 a bunch of local guys get on there and chat and now I can't hear them so I don't know could I potentially of hurt my radio while hitting the transmit button because the SWR was high I don't know man I apologize I'm doing research I'm watching YouTube videos I'm trying

Also side note can you swear in this subreddit apparently in the ham radio subreddit you cannot use any profanity I got a post removed for " a hole "

14 Comments
2025/01/30
17:37 UTC

67

Anyone on in California

10 Comments
2025/01/30
11:18 UTC

4

Trip from US to MEXICO

Hey guys I am just getting into cb radios and I was wondering since I’m going on a road trip to Mexico and I was wondering if my CB radio from the US would work all the way to my destination down the south of Mexico when I get in trouble in Mexico if I use my CB radio do I have to change channels when I get to Mexico I mean we using it because we’re taking two vehicles and it would be easier to communicate via CB radios any help would be very greatly appreciated thank you for your time

5 Comments
2025/01/30
06:24 UTC

10

I have been looking a 10 meter radios and was wondering if I need some type of license to use them? wanting to use it more for like a CB radio.

18 Comments
2025/01/30
03:11 UTC

7

A bundle of coax helped my SWR#?

5 Comments
2025/01/30
01:42 UTC

13

Another coax question...

What to do with excess cable? Loop it? Should the length be only as long as needed with no excess? What is the theory and everyone's experience?

5 Comments
2025/01/30
01:27 UTC

9

Mobile and non-permanent setup

I work with trucks every once in a while. When I do, a CB would be lovely for me to have. It’s been recommended to me that I buy a portable cb with a mag mount antenna. I will be in close proximity to the people I would need to talk to, at most 1-2 miles away.

I’m not allowed to modify my vehicle in any way, so the setup needs to be removable. I’m slightly concerned about the strength of the magnet mounts. I’ve seen some that are rated for ~55 mph, but not sure how strong they really are.

Any recommendations? Thanks guys

11 Comments
2025/01/29
21:36 UTC

3

Anytone AT6666 Headset Conversion?

Has anyone attempted or completed a headset conversion for the AT6666? I'm looking to create an adapter to convert the PTT and Mic pins (not the channel buttons) to an aviation headset style headset microphone, and then pipe the audio from the SPK OUT port to the ear cups. I drive a fairly loud truck, and I like to run the window open, and when I'm working mobile I struggle to hear my external speaker 2ft from my head.

IDEAL CONFIG:

PTT on a pedal by my foot on the dead pedal
- Would be a simple contact switch (i have an old guitar pedal I might use)
- Would likely use a standard 3.5mm pinout and resolder it
- Could also set up a PTT on my shift knob, the headset itself, or something stupid like the wheel

Audio out to the ear cups
- Would likely only run one ear
- Would maintain the 3.5mm jack from the rear of the radio
- Would make an adapter to the av-headset

Microphone on the headset
- Want it in front of my face
- AV headsets are typically alright sounding
- The AT6666 uses an electret microphone, as do most modern AV headsets

This is a stupidly niche project but I can't run 10/11/12 meters from my dorm room easily and I love my mobile setup, so I figured it'd be a fun little electronics project. It's totally useless to most people but I'm bored so hit me with ideas. Any thoughts on best way to do it are appreciated. If anyone's done it to their radio (of any type) I'd love to see it.

1 Comment
2025/01/29
19:38 UTC

53

Just installed

Just installed my first CB, I got the radio for $25 on offerup And rest on amazon

8 Comments
2025/01/29
02:46 UTC

3

First Amendment & The Amateur Radio License

14 Comments
2025/01/29
01:56 UTC

18

$32 shipped?

I really like the look of this old guy. I have so many others with so many bells & whistles. Just for educational sake anyone know about these old timers? Are they any decent?

10 Comments
2025/01/29
00:50 UTC

5

Looking for a mobile indoor/outdoor antenna

Hello all I’m am in search of an antenna that I could use both at home in my apartment. When outside on a stand possibly easy to carry. I don’t have a vehicle there’s a ton of traffic an chatter around me. What’s some good ideas.

6 Comments
2025/01/28
12:17 UTC

166

Found a radio in the dumpster

Today I was going to throw a air fryer out and in the dumpster together with some old batteries, I found this little cute thing. So I took it home and cleaned it up a little and i heard someone talk, so i suppose it works fine and just a fun find 😊

36 Comments
2025/01/28
11:41 UTC

4

Beginner - Issues with noise & reception

Hi everybody. Frustrated beginner with newbie questions.

I have an old Uniden BCT8 scanner I dug out recently to see what I could listen to. Back in the day I only ever listened to the trunked police stuff, but everything is digital and encrypted here now. Back then, I didn't even understand what the other bands were or what they were used for.

I've been listening to the CB & ham bands and been able to receive a bunch of stuff on the scanner that made me curious so I decided to pick up a cb to check out and start learning.

Picked up a President McKinley 1 and Pyramid 12v power supply, and have been having a hard time getting it to work properly.

Attached to the same antenna setup, I receive so much more and clearer on my old scanner than the new CB. The CB is super noisy, with a constant sputtering that sounds like interference. Except the weather channel, lol that one is super clear.

My swrs are all messed up so I know my antennas not right so I haven't even attempted to transmit, but hooked up to scanner with same antenna I still hear so much more. (Firestick dipole mounted on pole in yard)

Do scanners receive differently than CB's? Does the antenna suck? Where should I be looking to make this work? What am I misunderstanding? Any advice?

Thanks for your help.

4 Comments
2025/01/28
00:49 UTC

9

Am I doing something?

I have had CB radio for a year or two and I have no luck with it. I never hear anyone actually talking. The only thing I hear is a bunch of pre recorded conversations and sound effects from shows. I even moved much more north for college and get the same results. Do I need a weaker antenna?

14 Comments
2025/01/27
23:12 UTC

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