PRO-2048 200-Channel Programmable Home Scanner
(200-0417)                 Preparation                Faxback Doc. # 47902

Your scanner's display is protected during shipment by a piece of blue
film.  Peel off this film before you use the scanner.

CONNECTING POWER

Note:  If a power failure occurs or if the DC cigarette-lighter power
       cable or AC adapter is disconnected, the scanner's memory backup
       circuit keeps information in memory for up to 3 days.

Using Standard AC Power

You can power your scanner from a standard AC outlet using the supplied AC
adapter.

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.

CAUTIONS:  The supplied AC adapter supplies 12 volts and delivers 500
           milliamps.  Its center tip is set to positive, and its plug
           properly fits the scanner's DC 12V jack.  Using an AC adapter
           that does not meet these specifications could damage the
           scanner or the adapter.

           Be sure you connect the AC adapter to the scanner before you
           connect it to a standard AC outlet.  Then disconnect the
           adapter from the AC outlet before you disconnect it from the
           scanner.

           If you have difficulty inserting the AC adapter's polarized
           plug, do not force it.  Turn it over and reinsert it.

1.  Insert the supplied AC adapter's barrel plug into the scanner's DC 12V
    jack.

2.  Plug the adapter's power module into a standard AC outlet.

Using Vehicle Battery Power

To power your scanner from your vehicle's cigarette-lighter socket, you
need a DC cigarette-lighter power cable (such as Cat. No. 270-1533).

CAUTIONS:  The DC cigarette-lighter power cable must be capable of
           delivering 12 volts and 500 milliamps, its center tip must be
           set to positive, and its barrel plug must correctly fit the
           scanner's DC 12V jack.  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.

           Always plug the power cable into the scanner before you plug it
           into your vehicle's cigarette-lighter socket.  Always unplug
           the power cable from the vehicle's cigarette-lighter socket
           before you unplug it from the scanner.

Follow these steps to use vehicle battery power.

1.  Insert the power cable's barrel plug into the scanner's DC 12V jack.

2.  Plug the other end of the power cable into the vehicle's
    cigarette-lighter socket.

Note:  If the scanner does not operate properly when you use a
       cigarette-lighter power cable, unplug the power cable from the
       cigarette-lighter socket and clean the socket to remove ashes and
       other debris.

CONNECTING THE ANTENNA

To attach the supplied telescoping antenna to your scanner, simply screw
it into the hole on top of your scanner.

The antenna's length controls its sensitivity.  Adjust the length of the
telescoping antenna as follows for the best reception.

29-54 MHz                 Extend all 3 segments

108-174 MHz               Extend only 2 segments

406-956 MHz               Collapse fully (only 1 segment extended)

Connecting an Optional Antenna

The supplied telescoping antenna receives strong, local signals.  However,
to receive weaker, more distant signals in all bands, you can attach an
optional antenna, such as an external mobile antenna or outdoor base
station antenna.  Your local RadioShack store sells a variety of antennas.

Note:  If you connect an external antenna, remove the telescoping antenna
       from the top of the scanner.

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, use
a BNC adapter 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 ANT jack on the back
of the scanner.

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, 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.

CAUTIONS:  Do not run the cable over sharp edges or moving parts.

           Do not run the cable next to power cables or other antenna
           cables.

           Do not run the cable through areas that produce extreme heat.

           Follow all cautions and warnings included with the antenna.

RESETTING THE SCANNER'S DISPLAY

If the scanner's display stops working after you connect a power source,
follow these steps to reset it.

1.  If the scanner is off, press POWER to turn it on.

2.  Using a pointed object, such as a straightened paper clip, press RESET
    on the back of the scanner.  The display resets, and the scanner turns
    off.

3.  Press POWER to turn on the scanner again.

INITIALIZING THE SCANNER

If the scanner or its display does not work properly even after resetting
it, follow these steps to initialize the scanner.

CAUTION:  Initializing the scanner clears all the channels you stored in
          memory.  Initialize the scanner only when you are sure it is not
          working properly.

1.  If the scanner is off, press POWER to turn it on.

2.  Hold down ./CLEAR, then press RESET on the back of the scanner using a
    pointed object, such as a straightened paper clip.  The display rests,
    and the scanner turns off.

3.  Press POWER to turn on the scanner.

CONNECTING AN EARPHONE/HEADPHONES/EXTERNAL SPEAKER

The 1/8-inch EXT SP jack on the back of the scanner lets you connect an
optional earphone (such as Cat. No. 33-175), headphones (such as Cat. No.
20-210), or an external speaker (such as Cat. No. 21-549).

Note:  Connecting any external device to the EXT SP jack 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 the volume to the lowest setting before you begin listening.  After
  you begin listening, adjust the volume to a comfortable level.

  Once you set the 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.

Traffic Safety

Do not wear an earphone or headphones while operating a motor vehicle or
riding a bicycle.  This can create a traffic hazard and could be illegal
in some areas.

Even though some earphones and headphones let you hear some outside sounds
when listening at normal volume levels, they still can present a traffic
hazard.

(BR/eb 5/27/98)