HYS Magnetic Base Mobile Dual-Band Antenna 144/430MHz - Low-Profile

In this review the HYS Magnetic Base Mobile Dual-Band Antenna is evaluated for amateur radio operators and mobile scanner users who need simple, reliable VHF/UHF dual-band coverage. The bottom line: it is a compact, plug-and-play mag mount antenna that delivers usable 136-174MHz and 400-470MHz performance for casual mobile, base and scanner use. Performance is consistent with a small stainless steel whip and a 3.54in magnetic base, making it a sensible choice when a low-profile, easily removable antenna is required.

Key Features

• Dual-Band Coverage: Covers both 144MHz and 430MHz ranges so one antenna handles common VHF and UHF amateur and scanner bands without swapping antennas.
• Magnetic Mount: The 3.54in magnetic base allows fast indoor or outdoor installation on a metal ground plane and makes the antenna easy to remove when needed.
• Compact Whip: The 46cm stainless steel whip is low-profile yet omni-directional, offering reliable reception and transmission in mobile and base scenarios.
• RG58 Coax: Includes a 13 ft RG58 cable with UHF-male/PL259 connector for direct connection to many mobile radios and scanners without extra adapters.
• Power Handling: Rated to 70 W maximum input, suitable for typical mobile transceivers and many ham setups that do not exceed that power level.

Who It's For

This antenna suits amateur radio operators, scanner enthusiasts, and mobile radio users who need a low-cost, portable dual-band mag mount for casual operation, temporary installs or vehicle use where a permanent mount is not possible. Its compact stainless steel whip and included 13 ft coax make it convenient for quick field setups, ham nets, or monitoring local repeaters from a car or shelter.

It is not aimed at high-power contesting or fixed rooftop installations that demand larger, higher-gain antennas and a dedicated ground plane. Users who need maximum gain or rugged permanent mounting hardware should consider a dedicated roof mount or larger external antenna instead.

Pros & Cons

Pros

• Simple magnetic base installation makes it plug-and-play for mobile or temporary use.
• Dual-band operation covers both 136-174MHz and 400-470MHz bands without changes.
• Included 13 ft RG58 cable with UHF-male/PL259 is convenient for many mobile radios and scanners.
• Low-profile 46cm stainless steel whip is durable and omni-directional for general use.

Cons

• Mag mount requires a metal ground plane for best performance, limiting installation options.
• Moderate gain (2.15dBi/3.5dBi) means it will not match larger, higher-gain external antennas for long-distance work.

Specifications

Frequency	136-174 MHz & 400-470 MHz
Maximum Power Input	70 W
Gain	2.15 dBi (VHF) / 3.5 dBi (UHF)
Whip Length	46 cm (13.8 in)
Base Type	3.54 in magnetic base (requires metal ground plane)
Cable	13 ft RG58 coax
Connector	UHF-male / PL259

Our Verdict

The HYS magnetic base dual-band antenna is a practical, affordable choice for casual ham operators, mobile users and scanner listeners who need easy installation and dual-band coverage. It delivers dependable VHF/UHF performance in a compact package and includes a long enough RG58 lead and PL259 connector for most mobile radios, making it good value for short-term mobile or temporary base use.

Frequently Asked Questions

Will this antenna work with my mobile radio?
Yes, it uses a UHF-male/PL259 connector and is compatible with radios and scanners that accept an SO239/PL259 interface on VHF and UHF bands.

Can I mount this on any surface?
The magnetic base needs a metal ground plane for best performance; it will attach to a vehicle roof or other metal surfaces but is not ideal on non-metallic surfaces without modification.

Is the included cable long enough for vehicle installs?
The 13 ft RG58 coax provides good reach for most vehicle dash or trunk installs, but longer runs may require better low-loss cable for minimal signal loss.