User's Manual

20-527 Owner’s Manual Draft
Page 8 of 60
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.
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.
Connecting an Earphone/Headphones
For private listening, you can plug an 1/8-inch (3.5 mm) mini-plug earphone or headphones (not
supplied), available at your local RadioShack store, in the HEADPHONE jack on top of your scanner.
This automatically disconnects the internal speaker.
Listening Safely
To protect your hearing, follow these guidelines when you use headphones.
• Set the volume to zero before putting on the headphones. With the headphones on, adjust the volume
to a comfortable level.
• 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
could be illegal in some 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 Extension Speaker
In a noisy area, an amplified speaker (not supplied), available at your local RadioShack store, might