One of my QYT Tri-Band radios dropped in power down to 2 watts. I have a spare stored away and covered in Aluminum Foil. I ordered a replacement so I wouldn't have to use my spare(backup). It showed up today and I programmed it. Hmmmmmm…. For some reason, I couldn't access the Settings Menu in the program when I programmed all the others. Today, I had no problem accessing the Settings Menu. Wow, there are settings in there for things that I don't even know what they do. I might try reprogramming my other units and maybe I'll be able to get those to also recognize the Settings menu. The KT 8900R is only 25 watts but it also is only $80.