Authentic Genuine Nagoya UT-72 Super Loading Coil 20-Inch Magnetic Mount (Heavy Duty) VHF/UHF (144/430Mhz) Antenna PL-259, includes additional SMA Adaptor for BTECH and BaoFeng Handheld Radios

It is designed for both amateur radio and general communications use, featuring a strong build that can withstand outdoor conditions. With a 2m/70cm dual-band frequency range, it delivers good signal reception and transmission quality, making it a popular choice for mobile operations. The antenna is easy to install and offers a decent balance between performance and convenience, although it may not offer the same high-end performance as larger antennas. Overall, the Nagoya UT-72 is a reliable and affordable option for radio enthusiasts who need a portable antenna solution.

This review is for the the Magnet Mount dual band version. Great little antennas. I specifically like them because of the wider base over say a Diamond. It's not going anywhere. I like the adapter for your HT as well though I am not too confident on them lasting. I have one on the car and one on top of a metal safe in my house. Both work great for local nets and simplex. Works good enough on GMRS too with a bit higher SWR but still in working range. If I was mainly using it for GMRS I would get the GMRS specific one they make though.

Amazon clumps all these Nagoya reviews together, in spite of covering different products. I happen to own a couple of them. This first bit is in regard to the RB-50 NMO magnet mount:This thing is enormous. The 5" magnet really wants to stay in place. I use it with a half-wave VHF radiator that has a thick loading coil at the base, and it works beautifully, The bottom of the magnet has a heavy rubber rig around the lip, and a felt-like pad in the center to protect your car's finish. Honestly, I'd prefer an all-rubber coating, since I leave it on my car in all weather. I'll see how it holds up. I park indoors, so I'm not too worried about the felt. The mount includes a threaded rain cap, but if you're concerned with moisture, why not remove the entire mount and toss it in the car? The attached cable is slightly longer than the UT-72's, but not long enough to be annoyingly lossy. I find the extra couple of feet useful.The following is in regards to the UT-72 antenna:I own two of these antennas. The original was intended to live atop my Subaru Crosstrek, but I had such a positive experience initially testing it with my base rig, that I opted to leave it there and order another for the car. My home station is based in a small office, in a rental apartment with no balcony. My antenna options are thus _very_ limited; use a UT-72 and some DIY Yagis for VHF and UHF ops, and a random-wire/balun/choke for HF and shortwave listening. Everything is set up indoors. With some luck, I'll eventually work out a safe and discreet means of getting the random-wire out a window. I digress.The UT-72 requires a good ground plane, as mag mounts do. The more conductive surface area underneath the base, the lower SWR and better performance you'll get. My indoor unit is stuck to a large window A/C (of course my landlord has the compressors mounted entirely in our apartments, leaving nothing outside to work with), and my mobile unit is centered behind the sunroof. If you just need a temporary hack, sticking the magnet to an overturned cookie sheet is better than nothing. Mounted as intended, the SWR lives up to vendor claims. I'd be happy to take measurements for a particular frequency/frequencies and post photos of my meter. You can reach me at the address in my profile.In terms of workmanship, this is a rugged antenna. The base is huge—there's no way it's going anywhere at highway speed—and coated with a heavy layer of protective rubber. The thick coil at the base does double-duty, improving broadband coverage and acting as a protective spring. I take every precaution driving places with a low overhead clearance, but I'm confident in the UT-72s ability to flex upon bumping into things, without sustaining damage. The included cable is long enough to run back through my tailgate and up to my mobile rig, and the SO-239 to SMA-F adapter is a nice bonus that facilitates connection to the majority of HTs.If you're shopping for a magmount, I highly recommend this antenna.73

Worked well for me. Magnet is strong and I’m able to pick up all my local repeaters. For the price, can’t complain. Haven’t got around to checking SWR.

I own 3 of these. 2 mounted on vehicles, the 3rd is being used as a base station antenna.They are stellar performers.The 2 meter band and murs has a flat 1.0 swr.70 centimeter has an swr of 1.0. The gmrs has a maximum swr of 1.2.I am able to make solid uhf repeater hits up to 40 miles away.This is a quality dual-band mobile antenna.

I've used many different magnetic Mount antennas over the years for many different services, and this antenna has been the most impressive of all in terms of tunability and stability. For the 2 m and 70 cm ham bands, even at high power, the SWR is virtually flat. For UHF GMRS my SWR is around 1.3-1.5:1. Impressive!Good quality RG-58U coax, far better quality than the type of coax supplied by other manufacturers, keep signal loss to a minimum. The magnetic base is coated with a rubberized material and is extraordinarily strong, make certain that the surface you intend on placing it on is not made from aluminum. I've also used this antenna place on a large sheet pan for fixed base use, and the SWR is also very usable like that.Because I am extremely fussy about putting things on the surface of my paint, I would recommend that prior to placing the antenna, wipe off the surface of the paint with a wet clean cloth several times and then dry, and similarly do the same to the bottom of the antenna before placing it. If you remove the antenna, I place it in a clean plastic bag so there's no chance that the bottom of the antenna will pick up on magnetic particulate which could be transferred to the pain finish. This is a quality product that will deliver to the discriminating radio operator, I recommend it with confidence.