Similar issues, authentic Nagoya UT 72 after buying a counterfeit from Walmart. The difference was pretty stark. But my handheld eight watt running a diamond Rh 77 CA, inside the car outperformed the Nagoya mag mound by over a quarter mile in an suburban environment . Yes I know the superstition that sitting inside the car with an antenna leaning against something or held in the hand will have it signal impeded by the metal in the car. But you know what they say about being told it’s raining when it’s yellow. Ran multiple tests multiple antennas multiple sources and the handheld diamond 16 inch transmitting 462 where outperformed the 19 in Nagoya UT 72 on the center of the roof on my SUV. And no, the SUV does not have luggage racks. I do plan on getting a SWR meter and trying to tune it, I bought three and send them back because quite frankly he just didn’t even work. Spend less than $100 on an SWR meter and you just wasted $100
