A report from some friends of mine who I converted to GMRS
“So, Rich and I did some field testing this weekend on the GMRS. He had a 3db hood mount up against the windshield, driver side, I had the 6 db magnetic roof and we first made contact when I was South of Rotary Ann on 7 and he was between Deer and Nail on 16. Right at 15 miles line of sight distance through mountainous terrain in Ozarks...pretty impressive. We did notice his cab shadowed RX and TX when he was leading and garbled some, but all in all very impressed with them. We maintained communication clearly about 3-4 miles apart while running trails once when we got separated. I ran scan function leaving LR and on interstate and picked up all kinds of transmissions. I had intended to take the 3 db and swap it out once we got on trails, but forgot it. We ran some really tight trails and the magnetic mount gets a C for holding power with the 32" antenna. Would've worked fine with the 3 db though, but tight trails knocked it loose 3 times.”