Using Vehicle Battery Power - Radio Shack HANDHELD TRUNKING 20-521 Owner's Manual

1. Turn
VOLUME/OFF
to make sure the power is turned off.
2. Plug the adapter's 3.4 mm outside diameter/1.3
mm inside diameter barrel plug into your scanner's
POWER
3. Plug the other end of the adapter into a standard
AC outlet.
If rechargeable batteries are installed and
JACK NI-CD
scanner and recharges the batteries at the same time.

Using Vehicle Battery Power

You can power the scanner from your vehicle's battery
power using an optional DC adapter such as Cat. No.
270-1560.
Cautions:
• The recommended DC adapter supplies 9 volts
and delivers at least 300 milliamps. It has a barrel
plug with a center negative tip that correctly fits the
scanner's
not meet these specifications could damage the
scanner or the adapter.
• To protect your vehicle's electrical system, always
plug the adapter into the scanner before you plug it
into your vehicle's cigarette-lighter socket. Always
unplug the adapter from the vehicle's cigarette-
lighter socket before you unplug it from the scan-
ner.
• If batteries are installed, make sure the battery
switch inside the battery compartment is set to the
correct position (see "Using Internal Batteries" on
Page 9).
counterclockwise until it clicks
jack.
is set to
NI-CD
jack. Using an adapter that does
POWER
ALKALINE
, the adapter powers the
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