You can power the scanner from a vehicle’s 12V power source
(such as a cigarette-lighter socket) using a 12V, 300 mA DC
adapter and a size D Adaptaplug™ adapter (neither supplied).
Both are available at your local RadioShack store.
To power the scanner using a DC adapter, attach the
Adaptaplug to the DC adapter so the tip reads positive (+)
and set the adapter's voltage switch to 12V. Next, insert the
Adaptaplug into the scanner's
jack. Plug the other
end of the DC adapter into your vehicle's cigarette-lighter
You must install an antenna before you can operate the
The supplied telescoping antenna helps your scanner
receive strong local signals. To install the antenna, thread it
clockwise into the hole on top of the scanner.
The scanner's sensitivity depends on its location and the
antenna's length. For the best reception of the
transmissions you want to hear, adjust the antenna's length
according to the chart below.
Instead of the supplied antenna, you can connect an
outdoor base station or mobile antenna (neither supplied) to
your scanner. Your local RadioShack store sells a variety of
antennas. Choose the one that best meets your needs.
174 Extend fully
512 Extend 2 segments
Always connect the DC adapter to
the scanner before you connect it
to a power source. When you
finish, disconnect the adapter from
the power source before you
disconnect it from the scanner.
• If you use a cigarette-lighter
power cable and your vehicle's
engine is running, you might
hear electrical noise from the
engine while scanning. This is
• Mobile use of this scanner is
unlawful or requires a permit in
some areas. Check the laws in
20-424.fm Page 5 Monday, September 9, 2002 9:44 AM