Nagoya RB-50 Premium Magnet Mount for NMO Antennas - Heavy Duty

In this review of the Nagoya RB-50 magnet mount, the bottom line is simple: it is for mobile radio users who need a robust, easy-to-install NMO mount with a long cable and solid electrical components. The reviewer found the 5.15' rare earth magnet and solid brass chromed NMO housing deliver clear practical benefits for temporary or semi-permanent vehicle antenna setups, while the included 18 ft. RG-58A/U cable gives flexibility for routing to dash or trunk installations. This unit suits operators who prioritize build quality and signal integrity over a permanent roof installation.

Key Features

• Powerful magnet: The 5.15' rare earth magnet holds the mount to magnetic surfaces for convenient, tool-free placement and repositioning.
• Solid brass NMO mount: The chromed brass body provides strong electrical conductivity and corrosion resistance for reliable long-term use.
• Gold-plated contact pin: The gold plating and PTFE insulator promote consistent electrical contact and reduce the chance of intermittent signal loss.
• 18 ft. RG-58A/U cable: The long, factory-attached cable with 95% tinned copper braid gives low loss and flexible routing to user radios or external connectors.
• UHF male connector compatibility: The UHF male on the cable plugs into a wide range of two-way radios and adapters for easy integration.

Who It's For

This mount is best for CB and two-way radio users who need a reusable, non-drilling solution for mounting NMO antennas on trucks, SUVs or other vehicles with ferrous surfaces. The lengthy RG-58A/U cable and heavy-duty magnet are helpful for mobile operators who move the antenna between vehicles or who want a temporary install for events, field work, or testing.

Those who need a permanent, welded roof installation, ultra-high-strength magnetic mounting for very tall antennas in high-wind conditions, or a different connector type should consider a dedicated permanent NMO base or a professionally installed roof mount instead.

Pros & Cons

Pros

• Well-built chromed brass NMO mount and gold-plated contact for dependable conductivity.
• Strong rare earth magnet provides convenience for quick installs and temporary use.
• Included 18 ft. RG-58A/U cable with 95% tinned copper braid supports flexible routing and good shielding.

Cons

• Magnet strength received mixed feedback for very large or tall antennas, so extreme wind or high-speed use may reduce stability.

Specifications

Our Verdict

The Nagoya RB-50 magnet mount is a solid choice for mobile radio users who want a durable, reusable NMO mounting solution with excellent electrical components and a long factory cable. It represents good value for those needing temporary or semi-permanent installs and prioritizing signal integrity, though operators using very tall antennas in extreme conditions should verify magnet holding power for their setup.

Frequently Asked Questions

Will this mount work with common two-way radios?
Yes. The included UHF male connector integrates with many two-way radios and adapter cables for straightforward compatibility.

How long is the cable and what type is it?
The factory-attached cable is 18 ft. of RG-58A/U with a 95% tinned copper braid for good shielding and flexibility.

Is the mount corrosion resistant?
The NMO housing is chromed solid brass and includes a gold-plated contact pin and PTFE insulator to resist corrosion and maintain conductivity.