Radio Shack PRO-2051 - Manual (Page 14)

14
The Basics
step 3: connect your scanner
connecting the supplied antenna
Plug the telescoping
antenna into the ANT
connector. The antenna
length should be as shown
below.
Frequency Antenna Length
25-174 MHz Extend fully (4 segments)
400-512 MHz Extend 2 segments
806-1300 MHz Collapse fully (1 segment)
connecting an external antenna
The ANT jack on the back of the scanner makes it easy to use
the scanner with a variety
of antennas.
You will need to connect
an external antenna when
you mount your scanner
in the dashboard of your
vehicle. You may also
want to connect an external antenna if you use
your scanner as a base station.
Your local RadioShack store sells a variety of antennas.
Always use 50-ohm coaxial cable, such as RG-58 or RG-8, to
connect an outdoor antenna. For lengths exceeding 50 feet,
use RG-8 low-loss dielectric coaxial cable. If your coaxial
cable does not have a BNC connector, you will also need a
BNC adapter (not supplied).