Radio Shack PRO-528 User Manual page 12

The Basics
0-9 — input
a number or
characters.
•/CLR/DELAY — enter
a decimal point,
space, or programs
delay time for the
selected channel/
search bank, or
enters a hyphen
(in trunking ID
setting). Press CLR
to clear an entry.
Programs a 2-
second delay for a
selected channel or
service; programs
a 2-second delay
while trunking.
/KEYLOCK — locks
the keypad to prevent
changes; turns the
display and key
backlight on and off.
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