PRO-2050 VHF/UHF TrunkTracker Scanner
(200-0430) Preparation Faxback Doc. # 46007
This scanner is designed primarily for use in the home as a base station.
You can place it on a desk, shelf, or table.
Your scanner's front feet fold up or down. Adjust them to give you the best
view of the display.
Your scanner's display is protected during shipment by a piece of blue film.
Peel off this film before you use the scanner.
Connecting An Antenna
Connecting the Supplied Antenna
You must install an antenna before you can operate the scanner.
The supplied telescoping antenna helps your scanner receive strong local
signals. To install the antenna, screw it clockwise into the hole on the
scanner's top.
The scanner's sensitivity depends on the antenna's length and various
environmental conditions. For the best reception of the transmissions you
want to hear, adjust the antenna's length.
Frequency Antenna Length
29-54 MHz Extend fully
108-174 MHz Collapse one
segment
406-956 MHz Collapse both
segments
Connecting an Outdoor Antenna
Instead of the supplied antenna, you can connect an outdoor base-station or
mobile antenna (not supplied) to your scanner using a BNC connector. Your
local RadioShack store sells a variety of antennas. Choose the one that best
meets your needs.
When deciding on a mobile or base station antenna and its location, consider
these points:
The antenna should be as high as possible on the vehicle or building.
The antenna and its cable should be as far as possible from sources of
electrical noise (appliances, other radios, etc.).
The antenna should be vertical for the best performance.
To connect an optional base-station or mobile antenna, first remove the
supplied antenna from the scanner. Always use 50-Ohm coaxial cable, such
as RG-58 or RG-8, to connect the base-station or mobile antenna. For lengths
over 50 feet, use RG-8 low-loss dielectric coaxial cable. If the antenna
cable's connector does not fit in the ANT. jack, you might also need a
Motorola-to-BNC antenna plug adapter, such as RadioShack Cat. No. 278-117.
Your local RadioShack store carries a wide variety of coaxial antenna cable
and connectors.
Once, you choose an antenna, follow the mounting instructions supplied with
the antenna. Then route the antenna's cable to the scanner and connect the
cable to the ANT. jack on the back of the scanner.
CAUTIONS: Do not run the cable over sharp edges or moving parts that might
damage it.
Do not run the cable next to power cables or other antenna cables.
WARNING: Use extreme caution when you install or remove 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, contact with 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 Power
Using AC Power
The scanner's supplied AC adapter lets you power the scanner from a standard
AC outlet. To connect power to the scanner, insert the AC adapter's barrel
plug into the DC 12V jack on the back of the scanner, then plug the AC
adapter into a standard AC outlet.
CAUTIONS: The supplied AC adapter supplies 12 Volts DC power and delivers
500 milliamps. Its center tip is set to positive, and its plug
properly fits the scanner's DC 12V jack. Using an adapter that
does not meet these specifications could damage the scanner or
the adapter.
Be sure to connect the AC adapter to the scanner before you
connect it to an AC outlet, and disconnect the AC adapter from
the AC outlet before you disconnect it from the scanner.
WARNING: Do not use the AC adapter's polarized plug with an extension cord
receptacle unless the blades can be fully inserted to prevent blade
exposure.
Using Your Vehicle's Battery Power
If your AC power fails (during an emergency, for example), you can power
your scanner from your vehicle's cigarette lighter socket with an optional
DC cigarette lighter power cable, such as Cat. No. 270-1533 (not supplied).
To connect an optional DC cigarette lighter power cable, insert its barrel
plug into the DC 12V jack on the back of the scanner, then plug the power
cable into your vehicle's cigarette lighter socket.
CAUTIONS: If you use a DC cigarette lighter power cable with the scanner,
it must supply 12 volts and at least 500 milliamps of DC
automotive power. Its center tip must be set to positive, and
its plug must correctly fit the DC 12V jack on the back of the
scanner. The recommended power cable meets these specifications.
Using a power cable that does not meet these specifications could
damage the scanner or the power cable.
If you use a cigarette lighter power cable and your vehicle's
engine is running, you might hear electrical noise from the
engine while scanning. This is normal.
Note: Mobile use of this scanner is unlawful or requires a permit in some
areas. Check the laws in your area.
Connecting An Extension Speaker
In a noisy area, an amplified extension speaker (such as Cat. No. 21-541),
positioned in the right place, might provide more comfortable listening.
Plug the speaker cable's 1/8-inch plug into your scanner's (headphone)jack.
Note: Connecting an external speaker disconnects the scanner's internal
speaker.
Connecting An Earphone/Headphones
For private listening you can connect an earphone or headphones with a 1/8
inch plug (such as Cat. No. 33-175 or 20-210) to the headphones jack on the
front of the scanner. This automatically disconnects the internal speaker.
Listening Safely
To protect your hearing follow these guidelines when you use an earphone or
headphones.
Do not listen at extremely high volume levels. Extended high-volume
listening can lead to permanent hearing loss.
Set VOLUME to the lowest setting before you begin listening. After you
begin listening, adjust VOLUME to a comfortable level.
Once you set VOLUME, do not increase it. Over time, your ears adapt to
the volume level, so a volume level that does not cause discomfort might
still damage your hearing.
(LB/EB 12/30/97)
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