Ham Radio Vehicle Car Mobile Radio Antenna Dual Band VHF UHF 136-174MHz 400-520MHz Magnetic Base PL259 Male Antenna for BTECH ICOM Kenwood Midland Yaesu TYT AnyTone Amateur Radio Two Way Radio

This works pretty good. I don't have an SWR meter so I can't check that but otherwise it's doing the job I need

Hands down the best "budget" dual band mag mount antenna. I've used this antenna for over a year with a 25W dual band mobile radio and it works very well, if not as good as other brands that cost 2-3x as much. One downside is the attached cable is only 10ft (compared to 16+ for most) but if it's not long enough for your needs, use an extension! I recently bought a 2nd one to put on the lower roof outside my shack, connected to an HT on the desk and it's working well there too (on top of a metal plate) and extended down into my shack.

This antenna has a low SWR on 2m, 70cm and GMRS. It may not produce a useful pattern on GMRS, but the radio won't complain.

Hooked up easily and worked perfectly right out of the box

While this isn’t a premium VHF/UHF antenna, such as a Nagoya, it is certain a capable antenna performance-wise for this price point. I tested it on my 2M net and it did quite well. In fact, it did almost as well as my base Diamond X30A when placed at similar height (on my garage roof). This antenna features a nice strong magnetic mount that will definitely stay well in place. It covers 136-174MHz and 400-520MHz and has a male PL259 connector on the end at ~10’. It also includes a female SMA adapter in case you don’t already have one for your Chinese brand radio. This is certainly a capable antenna and in my tests does well for both receive and transmit within the defined range. This would be a good second SHTF antenna or extra antenna to keep in your car should your main antenna conk out. I like the antenna, I really like the price, and it would make a good starter antenna for a new ham that needs one for mobile use.

Everything was on point .

The Ham Radio Vehicle Car Mobile Radio Antenna Dual Band VHF UHF 136-174MHz 400-520MHz Magnetic Base by Treadalt-Tec is a handy, compact mobile, mag mount antenna for a mobile rig or an HT. The antenna comes with about10' of RG58/U coax with a PL-259 connector and an adapter with a female SMA connector which will work on most Chinese HT radios but not most Kenwood, Yaesu, or ICOM radios. However, an adapter with a male SMA connector will work for those radios. As can be seen from the chart from my miniVNA that I uploaded, the SWR of the antenna on the 2 meter band is about 1.35 to 1.43 which is excellent. It is a short antenna so you will not have great range but it will work well with just about any HT or mobile radio. The magnet is on the small side but should be large enough for secure attachment at highway speeds as the antenna is so compact. My VNA does not measure the UHF range so I couldn't test the SWR on the 70cm band but in actual use it worked okay and had good transmission reports. This is a convenient, compact, inexpensive antenna that is ideal for low power operation as a mobile antenna or a mag mount on your roof.

Although the antenna appears to be well made when using the NanoVNA I could not find any location on the vehicle where the swr was less than 3 or higher on either 2m or 70cm. Being a cheap antenna I did not expect much but this was beyond sad. The cost of the antenna is not worth my time to return. Will keep it for parts.