Dear friends! I know from the manual of the FT-990 that the volume of the beeper for buttons can be changed by a potentiometer, but I have no ''beep'' at all on mine, is there a way to turn if on or off? Can't find anything about this in the manual. Or is there something wrong - that can be fixed? 73 de Osten SM5DQC sm5dqc at areteadsl.se