User's Manual

Avoid increasing the volume once you set it. Over time, your sensitivity to a volume level decreases, so
volume levels that do not cause discomfort might damage your hearing.
Avoid or limit listening at high volume levels. Prolonged exposure to high volume levels can cause
permanent hearing loss.
Traffic Safety
Wearing headphones while operating a motor vehicle or riding a bicycle can create a traffic hazard and is
illegal in most areas.
Even though some headphones let you hear some outside sounds when listening at normal volume levels,
they still can present a traffic hazard. Exercise extreme caution!
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.
Always use 50-ohm coaxial cable, such as RG-58 or 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. Follow the installation
instructions supplied with the antenna, route the antenna cable to the scanner, then connect it to the
antenna jack.
WARNING: 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.
WARNING: Outdoor antennas must be properly grounded to prevent static buildup and lightning damage.
Article 810 of the National Electrical Code, ANSI/NFPA 70, provides information about proper grounding of
the antenna mast, connection of coaxial cable to an lightning arrestor, size of grounding conductors,
location of the lightning arrestor and connection of grounding conductors to grounding electrodes.
Additionally, you may wish to disconnect your radio from the outdoor antenna during electrical storm activity
to prevent damage. The diagram below provides an example of a proper antenna grounding system.
Connecting an Earphone/Headphones
For private listening, you can plug an 1/8-inch (3.5 mm) mini-plug earphone or headphones (not supplied)
in the HEADPHONE jack on top of your scanner. This automatically disconnects the internal speaker.