Tom, That must be a different radio than the THF-6A. Mine doesn't look like that at all, hi hi. ----- Original Message ----- From: <[log in to unmask]> To: <[log in to unmask]> Sent: Saturday, February 19, 2005 11:39 PM Subject: Re: THF6A & Sub Audible Tones! On the bottom edge of the radio just to the right of the tuning knob is a row of buttons. The second from the left sets your tone and once you've set that hold the left button in while someone is talking until there's a beep and the subaudible tone will be set. Tom Tom Brennan KD5VIJ, CCC-A/SLP web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html