i was checking my siganl strength yesterday using my HR20-100 and noticed that i do not hear a tone letting me know the strength. My H20 in the bedroom makes a beeping so i know if its better or worse. Is there some way to make the HR20 do it? When im looking at the signal meter window it does show audi tone and then you can select for what tuner, but i never hear anything. Ive tried every option in settings and looked through the book but cant find anything. Any thoughts?