User's Manual
20-405 User’s Guide DRAFT
To attach the supplied rod antenna:
1. Insert the antenna to the hole on the top of the scanner.
2. Screw the antenna to turn right.
Connecting an Outdoor Antenna
To connect an external antenna, follow the installation instructions supplied with the antenna. Use 50
ohm coaxial cable to connect your scanner to the outdoor antenna. For lengths between 50 and 100
feet, use RG-8X low-loss dielectric coaxial cable. For lengths over 100 feet, use RG8. You also may
need a BNC adapter (available at your local RadioShack store).
! 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 Earphone/Headphones
For private listening, you can plug an 1/8-inch (3.5mm) mini-plug earphone or headphones (not
supplied), into the HEADPHONE jack on the back of the scanner. This automatically disconnects the
internal speaker.
Listening Safely
Do not wear headphones, earphones, or earbuds while operating a motor vehicle or riding a bicycle.
This can create a traffic hazard and could be illegal in some areas.
To protect your hearing, follow these guidelines:
• Do not listen at high volume levels. Extended high-volume listening can lead to permanent hearing
loss.
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