Just acquired a new ar-10 to replace an old imax 2000 with cracking fiberglass... Put the antenna together per the instructions and the illustrations. And set the antenna to length and measured it out to mid band at 192” like the instructions say. Got the ring section all assembled like the drawing resembles. Have brand new coax cable on it ends installed properly no shorts no impedance issues and has been tested on my dummy load. the swr on all of 10 meters is well over a 5:1 swr. The lowest swr I’ve seen on this antenna has been a 1.3 on 29.600 and a 1.1 on 30.300mhz. These best swr readings are if the antenna is fully extended beyond the manufacturer specifications where you cannot go any longer. I’ve owned a lot of antennas in my time and never seen anything like this where I’m completely flabbergasted. I contacted the manufacturer with not much luck and I had multiple people locally look at this antenna and cannot figure out the issue. The readings are on my brand new antenna analyzer I refuse to install the antenna up at at full height and take it back down adjust put back up and do the same process 20 times and get nowhere. I had the antenna 8’ off the ground in a clear spot and cannot get an usable swr on 10 meters.