Radio Shack 20-501 - Manual (Page 40)

Beyond the Basics 40
At least one search bank must be enabled. (The
scanner sounds an error tone if you try to disable all
the search banks). The search bank and the fre-
quency where chain search starts depends on how
the scanner was set before you selected chain
search mode.
chain search hold mode
To start chain search hold mode, press HOLD in
chain search mode. The scanner stops searching
and HOLD appears. In this mode, pressing FUNC
and
changes the search direction downward and
pressing FUNC + changes the search direction
upward. or appears according to the current
search direction.
paging system eliminator
(information being developed)