User's Manual

2. Press the antenna down over the jack and turn the antenna’s base clockwise until it locks into place.
Add illust
Connecting an Outdoor Antenna
Instead of a supplied antenna, you can connect an outdoor base-station or mobile antenna (not supplied) to
your scanner using a BNC connector. Your local RadioShack stores sells a variety of antennas. Choose the
one that best meets your needs.
When deciding on a mobile or base-station antenna and its location, consider these points.
. The antenna should be as high as possible on the vehicle or building.
. The antenna and its cable should be as far as possible from sources of electrical noise, such as appliances
or other radios.
. The antenna should be vertical for the best performance.
Always use 50 Ohm coaxial cable, such as RG-58 or RG-8, to connect the base-station or mobile antenna.
For lengths over 50 feet, use RG-8 low-loss dielectric coaxial cable. If the antenna cable’s connector does not
fit in the scanner’s antenna jack, you might also need a PL-259-to-BNC antenna plug adapter. Your local
RadioShack store carries a wide variety of coaxial antenna cable and connectors.
Caution
. Do not run the cable over sharp edges or moving parts that might damage it.
. Do not run the cable next to power cables or other antenna cables.
Once you choose an antenna, follow the mounting instructions supplied with the antenna, after removing a
supplied antenna. Then route the antenna’s cable to the scanner and connect the cable to the scanner’s
antenna jack.
WARNING
Use extreme caution when you install or remove 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, contact with 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.
CONNECTING AN EARPHONE /HEADPHONES
For private listening, you can connect an earphone or headphones with a 1/8-inch (3.5 mm) plug to the
(headphone symbol) jack on the top of the scanner. (Your local RadioShack store carries a wide selection of
earphones and headphones). Connecting an earphone or headphones automatically disconnects the internal