FM CB radio and 10 meter radios

Frequency modulation, or FM, is a different method for encoding information in a radio wave. It offer much clearer audio. With the changes that the FCC enacted in 2021, CB radios can now have FM as a possible mode. AM is still the default mode for all CBs.

FM CB Radios Products

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Until very recently, all citizens band radios broadcast only on AM frequencies. Now, all that is changing. In September 2021, the Federal Communications Commission (FCC) approved the use of FM mode alongside AM mode and single-sideband (SSB) modes on citizens band (CB) radios. Truckers and amateur radio enthusiasts are touting this change as the biggest one to hit the industry in at least four decades.

What Is a CB Radio?

The fundamental nature of a CB radio allows a radio operator to transmit signals in two directions instead of simply receiving them, as is the case with regular radio service. CB radios are very popular among truck drivers and motor carriers, with millions of users taking advantage of this technology to communicate between vehicles.

How to Use an FM CB Radio

Until 2021, the only types of CB equipment manufactured for trucker and consumer use in the United States were AM-only and SSB radios. Adding FM mode to these types of older equipment won't be possible, but there are plenty of manufacturers already creating new two-way radios capable of receiving FM signals.

Differences Between AM, FM, and SSB Mode

The primary difference between SSB AM and FM radio is a matter of power output, or spectral density. Modes change the way in which your voice is encoded in the radio wave. Each mode has pros and cons. SSB is the best for range, but the hardest to use. AM is the best for range at a slight cost of audio clarity. FM offers the best audio clarity, but will often have the worst range of the 3 modes. Think of your AM/FM stereo in your car. AM stations are typically used for talk-radio because clarity isn't as important as range. FM is where the music is because it sounds the best. It's the same situation with AM and FM modes for CB.

FM radio is different from both double-sideband AM and SSB. It has a larger spectrum than the usual AM radio, which means the power output is spread out over a wider bandwidth. As a result, FM CB radios don't suffer from the same sound quality issues as traditional AM amateur radios, even with the same watts output. Most truck drivers find that they have a better user experience with the new FM radios since they create only minimal static and make it easier to hear.

Now Is the Time to Invest in New Radio Equipment

As the FCC approves FM for CB, now is the time for truckers and amateur radio enthusiasts to start upgrading equipment. The change to citizens band radio service means that anyone with a handheld radio manufactured before September 2021 will be unable to transmit and receive FM signals.

Note here that it will, however, still be possible to transmit on AM bands or SSB bands with the right equipment. There are plenty of manufacturers with AM-only radios left in stock, so those who don't want to substantially change how they use CB radios can also purchase leftover goods at discount prices in 2022.

It's also worth noting that AM is still going to be the default mode for all CB's. FM and SSB are optional and will only be found on select models.

The Importance of Radio Location

As with everything in life, the switch to FM CB radios is not without its drawbacks. FM twoway radios are fantastic at transmitting high-quality audio over short distances. They're great for line- of-sight communications because the received power is sufficient and it's possible to sacrifice some bandwidth to get better quality audio.

When the transmission needs to cover a greater distance, sacrificing bandwidth can become a problem. The bandwidth is constrained, which means it won't always be possible to maintain consistent radio service between two trucks with changing periodic locations. In this case, SSB may be a better operating mode for personal radio services.

Volume Adjustment and Channels

Some proponents of making the change to FM bandwidths cite the ability to use their radios with less need for volume adjustment as a deciding factor. Instead of having to compete with multiple users and static from interference, users will be able to send and receive much clearer audio to others nearby who are using the same pre-determined channels. That said, long-haul drivers who prefer to listen to all of the radio chatter instead of focusing exclusively on maintaining communications with only nearby users on the same specific channel will probably prefer continuing to use AM channel 19.

Channel 19 has long been the one most frequently used by truckers despite the fact that there are many others open to use by everyone. Selecting a channel on FM radio will work differently as a result of the wider bandwidth options and truck drivers will need to pre-select frequencies before being able to begin two-way communications.

The addition of FM radio capabilities will not change the FCC's regulations regarding AM channel use. Truckers should still stick to channel 19 for east-west highway traffic and channel 10 or 21 for regional roads. HAM radio and amateur radio users are welcome to use any channel between 1 and 40, bearing in mind that channels outside of this frequency range are not for open use. The federal government, US military, and Civil Air Control are still assigned AM radio frequencies, as is the Business Radio Service. Ordinary users still cannot transmit via these frequencies.

How FM Got Added to Citizens Band Radio

There have been plenty of examples of FM bandwidth use in CB radio history, just not in the United States or North America, more generally. Cobra has been fighting for the addition of FM to CB radios for years, but it was only in August when the company was joined by President Electronics that the FCC reconsidered its stance. It issued a memorandum opinion along with an order of reconsideration last August and officially reversed its FM ban in September.

The eventual decision made by the FCC was influenced by its recognition that adding FM capabilities to AM CB radios won't substantially change how they operate and will improve user experience. Amateur radio operators and truckers will still be able to use older equipment to transmit via AM and SSB, and will only need to purchase FM-capable mobile radios if they are interested in sending and receiving signals via this expanded bandwidth.

Frequently Asked Questions

Still wondering how the FCC's decision to allow FM transmissions on CB radios will impact everyday use? Here are a few answers to others' most frequently asked questions that could offer some clarity:

New Product!

Uniden PRO538HHFM Handheld CB Radio with FM and Vehicle Adapter Kit

Model: Uniden PRO538HHFM

Key Features
  • NOAA Weather Reception and Alerts
  • AM and FM modes
  • Use as a handheld or in your vehicle
  • High / Low Power
  • Large easy to see display
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RCI69FFB4 - The most Powerful Radio on the Market. 400 Watts Modulation SSB 10 Meter Radio We DO NOT recommend a magnet mt antenna

Model: Ranger RCI69FFB4

Key Features
  • Manufacturer Warranty Only
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  • AM/FM/USB/LSB Modes
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SR655HPC - Join the digital age! With This High Tech Display. Large digital meter This radio is HOT!

Model: Stryker SR655HPC

Key Features
  • FREE - 90 Day In-Store Warranty! (except finals)
  • 75 Watts PeP (Bird), 45 Watts RMS (Dosy)
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SR955HPC - Do You Want A Stryker With ALL The Features? This is it! AM / FM / SSB modes. Fully adjustable echo & talk-back controls.

Model: Stryker SR955HPC

Key Features
  • FREE - 90 Day In-Store Warranty! (except finals)
  • 80 Watts PeP (Bird), 45 Watts RMS (Dosy)
  • Single Sideband SSB (USB/LSB) Modes
  • Selectable Color Display
  • Autocalibrating SWR Meter
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SR-447HPC2 - The Little Brother Of The SR497 Is The Stryker SR447HPC2. Small enough to mount in the limited space most trucks now provide.

Model: Stryker SR447HPC2

Key Features
  • FREE - 90 Day In-Store Warranty! (except finals)
  • 75 Watts PeP (Bird), 40 Watts RMS (Dosy)
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LINCOLNII+ - Smaller In Size - Loaded With Features! Amazing SSB Performance Out Of The Box. Catch the band openings with this rock solid stable mobile radio.

Model: President Lincoln II

Key Features
  • AM/FM/LSB/USB/CW Modes
  • 50 Watts PeP (Bird), 30 Watts RMS (Dosy)
  • Selectable Multi-Color Display
  • 6 Memory Frequencies
  • ASC - Automatic Squelch Control
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The Anytone AT-6666 is a full featured mobile with FM,AM,USB,LSB,PA modulation mode.

Model: AnyTone AT6666

Key Features
  • 60 Watts PeP (Bird), 55 Watts RMS (Dosy)
  • ECHO Function
  • SQ, ASQ Function (FM and AM mode only)
  • RF GAIN & Power Adjustment
  • SCAN Function
  • NB/ANL Function
  • DW DUAL-WATCH Function
  • SWR、S/RF function
  • Seven (7) Color LCD Display
  • Six(6) Groups Memory Channel
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Super compact AM/FM CB radio with USB Jack the first of it's kind!

Model: President THOMAS FCC

Key Features
  • Works on either 12VDC or 24VDC power sources
  • Extremely small size 4.9 IN wide and 1.8 IN tall
  • Multi-color Faceplate
  • Talkback
  • Automatic Squelch
  • 5V 2.1A USB-A Port
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All new updated FM mode handheld the only handheld CB with AM and FM modes

Model: President RANDY II FM

Key Features
  • FM Mode
  • Updated! Scan: new Skip/Scan feature
  • Battery : Lithium-Ion
  • Frequencies display
  • Weather channel with Alert
  • Dual watch
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BILL II - Extremely Small In Size - Now with FM! Weather Radio with alert, Channel Changing Microphone, Front 2.1A USB Port For Charging Other Devices. Adding the NewYork Antenna & Lighter Plug Makes The Bill The Perfect TO-GO CB System.

Model: President BILL II FM

Key Features
  • The smallest FM CB available!
  • Extremely small size
  • Quick-release mounting bracket
  • Weather channel with Alert
  • 7 Color display
  • Instant 9/19 Channel Selection
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All new FM Mode Cobra 29 Classic! the ever popular Cobra 29 LTD Classic now with FM mode included

Model: Cobra 29 Classic with FM

Key Features
  • NEW! FM Mode
  • The industry standard in CB radios
  • SWR meter
  • Classic CB look and feel
  • Standard 7.6in Wide
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Compact AM/FM/WX CB Radio with CTCSS/DCS- the first of its kind!

Model: President Harrison FCC

Key Features
  • AM, FM, and Weather Modes
  • CTCSS/DCS function
  • Works on either 12VDC or 24VDC power sources
  • Large LCD Multi-color faceplate
  • Built-in SWR Meter
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Cobra 29 LTD Chrome with FM! Updated for 2023 this model includes FM mode

Model: Cobra 29 Chrome with FM

Key Features
  • NEW! FM Mode
  • All blue LED lights!
  • Built-in SWR meter
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High performance complete CB radio package with antenna

Model: PNI 7120 EX48

Key Features
  • High performance, yet compact 18" magnetic antenna
  • Matched with high performance and super compact CB
  • Includes lighter plug
  • Installation only takes minutes
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Super compact all-in-hand CB radio updated for 2023 now includes FM mode and waterproof!


Key Features
  • Ultra Compact Design
  • Wireless Bluetooth Connectivity
  • Weather and Dust Proof - IP66 Rating
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Anytone AT-5555 PLUS All Mode Full Featured Computer Programmable 10 Meter Radio

Model: AnyTone AT5555-PLUS

Key Features
  • NOTE - this is a different model from the Anytone AT5555N
  • NEW! Includes CTCSS / DCS module
  • All Mode: CW / AM / FM / USB / LSB
  • Echo / Reverb & Talkback
  • Hi-Cut Tone Control
  • Extremely Stable on SSB
  • 50 Watts PeP (Bird), 30 Watts RMS (Dosy)
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RICHARD - Small In Size, But Loaded With Features. Front Mounted USB Charging Jack, Muilti-Color display and a channel changing microphone.

Model: President Richard

Key Features
  • Compact Case Size - Fits in most Cubbies
  • 50 Watts PeP (Bird), 30 Watts RMS (Dosy)
  • Built-in Echo and Talkback
  • Selectable Multi-color display
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RONALD - Get Over 50 Watts Of Power In A Super Compact Package! Ideal if you are after the performance and a large display, but don't want to deal with a large sized radio.

Model: President RONALD

Key Features
  • 50 Watts PeP (Bird), 28 Watts RMS (Dosy)
  • Super compact design, less than 5" wide and only 1.77" tall
  • Large, color selectable display for easy viewing
  • Built in SWR meter
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WALKER III - All new FM CB radio from President! Popular features like built-in Weather, it's CB radios for everyone.

Model: President WALKER III FM

Key Features
  • *Updated* Now includes FM Mode
  • Listen to live weather radio in your CB!
  • Charge your phone from the front mounted 2.1A USB jack
  • Small package, but big in performance
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Finally! Get a compact CB without sacrificing performance! Includes FM!

Model: PNI PNI-HP-6500

Key Features
  • Sleek - Low Profile Design
  • AM and FM Modes!
  • High performance
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APOLLO2 - Direct From Europe Is The Apollo2 Compact 10 Meter Radio. Features frequency changing microphone, Dual watch & Scan function.

Model: AnyTone APOLLO2

Key Features
  • 40 Watts PeP (Bird), 28 Watts RMS (Dosy)
  • Only 1.5 inches tall and less than 5 inches wide!
  • Extermely Compact Chasis
  • Full Color TFT Display
Backordered - No Date AvailableThis item is backordered from the manufacturer. We do not have an expected in stock date at this time.

SR94HPC - Stryker Radio On Your Wish List But Not Sure If You Have Room? Take A Look At The SR-94HPC. Small in size - LOADED with features.

Model: Stryker SR94HPC

Key Features
  • Extermely Compact Chasis
  • Full Color TFT Display
  • 40 Watts PeP (Bird), 28 Watts RMS (Dosy)
was $249.95
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Backordered - No Date AvailableThis item is backordered from the manufacturer. We do not have an expected in stock date at this time.

CRT S6900V All Mode 10 Meter Radio

Model: Walcott Radio CRTS6900V

Key Features
  • All Mode: AM / FM / USB / LSB / CW
  • CTCSS / DCS tones
  • 50 Watts PeP (Bird), 30 Watts RMS (Dosy)
  • PC Programmable


Is a CB AM or FM?

A CB radio is usually AM. However, the FCC also recently approved the use of FM transmissions, which should be coming soon.

Can I Use FM on a CB Radio?

You can use FM on a CB radio only if it is equipped to send and receive FM transmissions. CB radios manufactured before September 2021 when the FCC approved FM transmission use are not FM-enabled.

What's the Difference Between AM and FM on CB Radio?

The difference between AM and FM on CB radio is that AM tends to pick up interference and background noise, while FM focuses only on the strongest signal. As a result, you will only hear one voice in the cab at a time on the FM band, but it will be clearer.

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