Hello to you and thank you for responding, here is the issue, I had the sr955 version 1 and they say it's thsame board as this sr655 minus all the stuff for side band but this board is no where near the sr955 board, there are no potentiometers for adjust of carrier like the sr955 had I will send a picture of this board, and it looks like someone added something to the board, I got the radio from a friend who purchased it new and sent it out to have this modification done to it, it was supposed to do something with the carrier but it actually does nothing noticable check this out, what would this modification be doing? I googled the board part number and it said it was a v2model 655