I'm puzzled by the comment posted yesterday: by Jim W7JR ""I've been doing a lot of FT-8 using my KX3 and my KXPA100 at 20 watts, and have noticed that the KX3 is heating up quite a bit and is almost hot to the touch"" Why should the KX3 be heating up, when the AMP is running only 20W ? Is the KX3 "drive" not backed-down at this level ?? HELP Cheers, Jan K1ND