25
Listening Safely
To protect your hearing, follow these guidelines when you use headphones.
Do not connect headphones to the external speaker jack located on the
rear panel of the radio.
Set the volume to zero before putting on 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 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. For lengths over 50 feet, use RG-8 low-loss dielectric coaxial
cable. If the antenna cable’s connector does not have a BNC connector,
you will also need a BNC adaptor.
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 fail, 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.
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