C. Crane BC75XLT - Manual (Page 27)

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determine if the batteries are good and can be charged, it
checks them and displays the battery icon. if the scanner
judges the batteries are good, the scanner starts charging
and the battery icon disappears. if it cannot regard the
batteries as good in 60 seconds, the scanner stops checking
and the battery icon blinks.
Low Battery Alert
The Low Battery Alert tone sounds every 15 seconds and
the battery icon flashes when the battery voltage is low. if it
drops below the threshold, the scanner automatically shuts
off until the battery is recharged.
TURN ON THE SCANNER
Turn on the scanner after it has been completely charged
(ni-MH batteries) or alkaline batteries have been installed.
Note: Make sure the antenna is connected before you turn on
the scanner.
1. You can select the band plan (USA or Canada) when you
turn on the scanner (default = USA). Press and hold the
key for 2-3 seconds to turn on the scanner and then
press and hold 1 for USA or 2 for Canada. The band plan
will remain until you change it again.
2. if this is the first time you have turned on the scanner,
All LocOut displays. This means that no frequencies
have been saved into channels. Press Srch to begin
searching.