BTECH UV-25X4 Second Gen. Tri Band Mobile Radio - Compact Multi-Band

Our review of the BTECH UV-25X4 (Second Gen.) finds it best suited to ham operators who need a compact, multi-band mobile that can double as a base station. The single biggest reason to consider this radio is its true triple-band functionality: it transmits and receives across 144 MHz, 220 MHz and 430 MHz while allowing simultaneous monitoring of additional channels. Installation is straightforward for vehicle use and the upgraded RJ45 audio I/O with K1 adapter makes it simple to add aftermarket mics or headsets for clearer audio in the field or at a desk.

Key Features

• Triple-band operation: Transmit and receive on 144, 220 and 430 MHz so operators can consolidate three radios into one compact unit.
• Multi-channel monitoring: Monitor the primary band while keeping tabs on up to three other frequencies or channels for better situational awareness.
• Enhanced audio I/O: The RJ45 microphone port plus included K1 adapter opens access to a wide range of aftermarket audio accessories for improved voice clarity.
• Ready for vehicle or base use: Comes with mounting brackets and hardware for mobile installation and can convert to a base station with an optional external power supply.
• Inclusive kit contents: Ships with speaker mic, DC cable, RJ45 to K1 adapter, radio and mic brackets, mounting hardware and a user guide for quick setup.
• Suggested upgrades: Pairs well with the Nagoya TB-320A tri-band antenna and a PC04 FTDI programming cable for easier installation and programming.

Who It's For

The UV-25X4 is ideal for amateur radio operators who need a flexible mobile rig that covers VHF, 220 MHz and UHF bands without occupying a lot of dash space. It fits well for club members, emergency communicators and portable contest stations who value compact size and simultaneous monitoring of multiple channels.

Those who should look elsewhere include users who require an integrated power supply for fixed-base use (the RPS-30M is sold separately) or operators who cannot tolerate any relay noise when monitoring 220 MHz simultaneously with other bands; a few users also reported inconsistent headphone jack behavior, so users who rely critically on a front headphone port may prefer a different model or external adapter solutions.

Pros & Cons

Pros

• True tri-band transmit and receive in a single compact mobile form factor.
• Upgraded RJ45 audio and included K1 adapter provide broad accessory compatibility.
• Complete mounting hardware included for quick vehicle installation and easy conversion to base use with optional power supply.
• Good value for money with strong receive and transmit performance across all three ham bands.

Cons

• Relay switching can produce audible noise when monitoring 220 MHz alongside VHF/UHF, which may bother some users.
• Some customers reported intermittent headphone jack issues, so built-in audio may vary by unit.

Specifications

Product	BTECH UV-25X4 (Second Gen.)
Bands	144 MHz, 220 MHz, 430 MHz
Power	25 watt mobile output
Audio I/O	RJ45 microphone port with K1 adapter included
Included Accessories	Speaker mic, DC cable, RJ45 to K1 adapter, brackets, mounting hardware, user guide
Monitoring	Primary TX/RX band plus simultaneous monitoring of up to 3 other frequencies
Optional Power	Can be used as a base station with RPS-30M power supply (sold separately)

Our Verdict

The UV-25X4 Second Gen. is a practical, affordable tri-band mobile for ham operators who need breadth of coverage and flexible monitoring in a compact package. It delivers strong transmit and receive performance and useful audio expansion via the RJ45/K1 interface, making it good value for mobile or portable use; buyers who need perfect silence when switching filters or fully reliable headphone jack behavior should confirm fit with their workflow before purchase.

Frequently Asked Questions

Can this radio be used as a home base station?
Yes, it can be converted to a base station when paired with the optional RPS-30M power supply, which is sold separately.

Does the UV-25X4 monitor multiple bands at once?
Yes, it transmits on a primary band while simultaneously monitoring up to three additional frequencies or channels across the supported bands.

What audio accessories are supported?
The upgraded RJ45 microphone port and included K1 adapter make the radio compatible with a wide range of aftermarket microphones, headsets and audio accessories.