I have a Anytone at-588uv that has been working fine for some time now when it is in use on vhf after a few mins on high it kicks back to about 10 watts & stays there & some times it breaks up on tx in & out the swr is 1.2 to 1 & have been using it on a 60 amp power supply good solid conections power supply is good it runs my yaesu ft-7900 with no trouble the radio runs hot but it says in the manual that it does run hot friends are telling me they think it is the vhf finals it works fine on uhf I would like some input from others that have better tech. experience thanks in advance for any help