18
The Basics
connecting the supplied 
antenna
To attach the supplied fl exible antenna 
to the antenna jack on the top of your 
scanner, align the slots around the 
antenna’s connector with the tabs on the 
antenna jack. Press the antenna down 
over the jack and turn the antenna’s 
base clockwise until it locks into place.
connecting an optional external 
antenna
The antenna connector on your scanner 
makes it easy to use the scanner with a 
variety of antennas, such as an external 
mobile antenna or outdoor base station 
antenna. 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 over 50 feet, use 
RG-8 low-loss dielectric coaxial cable. If your antenna’s cable 
does not have a BNC connector, you will also need a BNC 
adapter (not supplied, available at your local RadioShack 
store).
Follow the installation instructions supplied with the antenna, 
route the antenna cable to the scanner, then connect it to the 
antenna jack.
Use extreme caution when installing or removing an 
outdoor antenna. If the antenna starts to fall, let it go! 
It could contact overhead power lines. If the antenna 
touches a power line, touching the antenna, mast, cable, 
or guy wires can cause electrocution and death. Call the 
power company to remove the antenna. DO NOT attempt 
to do so yourself.