CB 666 (AnyTone AT-6666) – Complete 2026 Guide, Specs, Features, and Real-World Use
The CB 666, officially known as the AnyTone AT-6666, is one of the most talked-about radios in the global CB and ham radio community. By 2026, it has earned a near-legendary reputation among truckers, DXers, off-roaders, and amateur radio operators, especially in South Asia, including Bangladesh, where long-range communication is critical.
This fully updated 2026 article covers everything you need to know about CB 666—from its technical specifications and performance to legality, real-world usage, pros, cons, and buying advice. Important terms are bolded for clarity and SEO relevance.
Overview of the CB 666 (AnyTone AT-6666)
The AnyTone AT-6666, commonly called CB 666, is a high-power 10-meter mobile transceiver designed primarily for amateur (ham) radio operators, but widely used in CB radio communities after modification. It is manufactured by Qixiang Electron Science & Technology Co., Ltd., the company behind the AnyTone brand, founded in 1993.
Although often labeled a CB radio, the AT-6666 is technically a 10-meter ham radio operating mainly in the 28.000–29.700 MHz band out of the box. With simple resets or software programming, many users expand it to the 27 MHz CB band, which is why it became famous as “CB 666.”
What truly sets the CB 666 apart is its combination of:
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High transmit power (up to 60W PEP on SSB, even higher when modified)
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Multiple modes (AM, FM, USB, LSB, PA, and CW on Pro models)
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Excellent audio clarity
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Compact mobile-friendly design
By 2026, it remains one of the best value radios for users who want long-distance communication without paying premium prices.
Technical Specifications and Performance Breakdown
The technical strength of the CB 666 is the main reason for its long-term popularity. Below is a simplified explanation of what makes this radio powerful and reliable.
Frequency Range and Channels
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Programmable Range: 25.615 – 30.105 MHz
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Standard Ham Band: 28.000 – 29.700 MHz
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Channel Structure: 40/80 channels per band (A–I bands)
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Memory: 6 programmable memory groups
This wide frequency coverage allows users to operate on 10-meter amateur bands and, after modification, 11-meter CB bands.
Power Output (One of Its Biggest Strengths)
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AM: 15 watts
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FM: 45 watts
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SSB (PEP): Up to 60 watts
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Modified Pro Versions: Users report 70–80 watts swing
Compared to standard CB radios (usually limited to 4W AM / 12W SSB), the CB 666 delivers significantly more range and punch.
Receiver and Audio Quality
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SSB Sensitivity: 0.25 μV
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AM/FM Sensitivity: 1.0 μV
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Selectivity: Up to 70 dB on SSB
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Audio Output: 3W into 8 ohms
In real-world use, this translates into clear reception, even in noisy environments like highways or urban areas.
Key Features That Make CB 666 Stand Out
The CB 666 is not just about power—it’s packed with features normally found in higher-priced radios.
Noise Reduction and Signal Control
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NB/ANL: Reduces ignition and electrical noise
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HI-CUT Filter: Improves voice clarity
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NRC (Pro models): Advanced digital noise reduction
These features are especially useful in Bangladesh, where electrical interference is common.
Display and Controls
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Large LCD screen with 7 selectable colors
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Displays frequency, channel, S-meter, RF power, SWR
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Clarifier (±1.5 kHz) for fine SSB tuning
The interface is beginner-friendly while still offering deep control for advanced users.
Advanced Functions
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Dual Watch (DW)
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Scan mode
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Echo processor
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Roger Beep (programmable)
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Emergency Call (EMG)
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Time-Out Timer (TOT)
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Split Frequency (Pro version)
These features make the radio suitable for DX communication, convoy driving, and emergency use.
CB 666 in Real-World Use (Bangladesh Perspective)
In Bangladesh, the CB 666 is popular among:
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Long-haul truck drivers
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Private vehicle owners
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River transport operators
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Ham radio hobbyists
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Emergency communication enthusiasts
Range and Reliability
With a proper antenna and SWR tuning, users often report:
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30–50 km range on AM/FM
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100+ km DX contacts on SSB under good propagation
This makes it ideal for highways, rural areas, and disaster-prone regions.
Heat and Power Management
One known issue is heat buildup during long transmissions. The metal chassis helps, but users are advised to:
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Avoid continuous high-power transmission
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Ensure proper airflow
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Use an external speaker if needed
Despite this, the radio is considered durable and reliable for daily mobile use.
Legal Status, Modifications, and Safety Considerations
This is one of the most important topics when discussing CB 666.
Out-of-Box Legality
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Fully legal for licensed amateur (ham) radio use
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FCC, CE, ROHS certified
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Requires a ham license for 10-meter operation
CB Band Conversion
Many users unlock CB frequencies using:
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Factory reset (FUNC + SCAN on power-up)
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PC programming software
⚠️ Important:
Operating the CB 666 on 27 MHz CB bands at high power may be illegal in many countries without proper authorization. Laws vary, so users should always check local regulations.
Common Modifications
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Frequency expansion (25–30 MHz)
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Echo tuning
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Mic gain optimization
These mods can improve performance but may:
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Void warranty
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Increase heat output
Pros, Cons, and Buying Advice (2026 Update)
Advantages
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High transmit power for long-range communication
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Excellent SSB audio clarity
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Multiple modes (AM/FM/SSB/CW)
Disadvantages
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Runs hot during long transmissions
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Stock microphone is average (many users upgrade)
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Modifications can cause legal and warranty issues
Price and Availability
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Price Range (2026): USD $200–$300
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Widely available on Amazon, eBay, ham radio stores
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Accessories included: mic, mounting bracket, DC cable, software link
For users in Bangladesh, it is often imported through local electronics markets or online sellers.
Conclusion: Is CB 666 Worth It in 2026?
The CB 666 (AnyTone AT-6666) remains one of the most powerful and versatile radios in its class. In 2026, it continues to dominate because it offers high power, clean audio, flexible features, and solid durability at a reasonable price.
For licensed ham operators, it is an excellent 10-meter radio. For experienced CB users who understand local regulations, it provides exceptional range and performance. With proper setup and responsible use, the CB 666 is still a top-tier choice for long-distance mobile communication.
Frequently Asked Questions (FAQs)
1. Is CB 666 a real CB radio?
Not exactly. It is a 10-meter ham radio that many users modify for CB use.
2. How much power does CB 666 produce?
Up to 60W PEP on SSB, and even more on modified Pro versions.
3. Is CB 666 legal in Bangladesh?
It is legal for licensed amateur radio use. CB modifications depend on local regulations.
4. What antenna works best with CB 666?
High-quality CB or 10-meter antennas with proper SWR tuning work best.
5. Is the AT-6666 Pro better than the standard version?
Yes. The Pro version adds NRC, CW mode, and split frequency, making it better for DXing.
