Uniden UBC785XLT - Manual (Page 54)

Key Beep - This is another term for the tone you hear as a keypad acknowledgement beep.
The default setting is on.
If you have turned the Key Beep off, you now have a silent keypad. You will not hear a
tone each time you press a key.
PC Control - This term is associated with the ability to program frequencies and other
useful information via a computer by means of third party software. You can change the
transfer speed on the scanner needed to be compatible with your PC. (See page 40)
Screen Mask - Screen Mask reduces the amount of information that appears on the
display. Alpha tags that you have set for a channel along with a few function icons will
appear only on the display. This mode is particularly useful in public safety vehicles where
that are already overloaded with information. Screen Mask does not work in Search mode.
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