Setup; Connecting The Antenna; Connecting A Speaker Or Headphones; Powering Your Scanner - Radio Shack PRO-650 User Manual

Setup

Connecting the Antenna

To attach the supplied telescopic antenna, insert the
antenna in the hole on the top of the scanner and turn
the antenna clockwise to tighten.
Connecting an Outdoor Antenna
To connect an external antenna, follow the installation
instructions supplied with the antenna. Use 50 Ohm
coaxial cable, such as RG-58 or RG-8. 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 adapter (available at
your local RadioShack store).
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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 a Speaker or Headphones

You can plug an amplified speaker or headphones
(not supplied) with Çinch (3.5 mm) mini-plug into the
HEADPHONE jack on the back of the scanner. This
automatically disconnects the internal speaker.
Note: Use an amplified speaker with this scanner. Non-
amplified speakers do not provide sufficient volume for
comfortable listening.
Listening Safely
To protect your hearing, follow these guidelines:
• Do not listen at high volume levels. Extended high-
volume listening can lead to permanent hearing loss.
• Set the volume to the lowest setting. Then turn
on your audio device and adjust the volume to a
comfortable level.
• Avoid increasing the volume. Your ears will adapt
to the volume level, so a level that does not cause
discomfort could still damage your hearing.
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Powering Your Scanner

1. Connect the supplied adapter to the scanner's DC
9V jack and a standard power outlet.
2. To disconnect, unplug the adapter from the power
source first.
Caution: You must use a Class 2 power source that
supplies 9V DC and delivers at least 400mA. Its center tip
must be set to positive and its plug must fit the scanner's
DC 9V jack. Using an adapter that does not meet these
specifications could damage the scanner or the adapter.

Turning on the Scanner

1. Turn the SQUELCH all the way down before you turn
on the scanner.
2. Slide POWER to ON. A welcome message appears.
After about 3 seconds, adjust VOLUME to a
comfortable level.
3. Turn SQUELCH clockwise, just until the hissing
sound stops. If you always hear a hissing sound, the
scanner will not scan or search properly.
• To listen to a weak or distant station, turn SQUELCH
counterclockwise.
• If reception is poor, turn SQUELCH clockwise to cut
out weak transmissions.

Turning Off the Key Tone

The scanner is preset to sound a tone each time you
press one of its keys.
To turn the key tone on and off:
1. Turn on the scanner. WELCOME SCAnnInG rECEIVEr
appears.
2. While the welcome message is on the screen, press 1
to turn on the key tone or press 2 to turn it off.
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