PRO-23  (200-0504)           Preparation              Faxback Doc. # 6489

POWER SOURCES

You can power the scanner from any of three sources:

Internal batteries

Standard AC power (using an optional AC adapter)

Vehicle battery power (using an optional DC adapter)

See "Using Other Power Sources" to use AC or vehicle battery power, and
for information about charging nickel-cadmium batteries inside the
scanner.

USING INTERNAL BATTERIES

You can power the scanner with four AA batteries.  For the longest
operation and best performance, we recommend alkaline batteries (Radio
Shack Cat. No. 23-552).  Or, you can use rechargeable nickel-cadmium
batteries (Cat. No. 23-125).

Warning:  The scanner has a built-in circuit that lets you recharge
          nickel-cadmium batteries inside the battery compartment.
          However, you must never use this circuit when you have installed
          non-rechargeable batteries in the scanner.  Be sure to read
          "Important Information about the External Power Jacks" and Charging
          Nickel-Cadmium Batteries."

Follow these steps to install batteries.

1.  Press down the tab on the battery compartment cover, and lift open
    the compartment.

2.  Remove any old batteries from the compartment and cover.

3.  Install two batteries in the compartment and two in the cover as
    indicated by the polarity symbols (+ and -) marked inside the
    compartment and cover.

4.  Replace the cover.

BATT.Lo flashes on the display when the batteries are low.  When this
happens, immediately replace or recharge all four batteries.

CONNECTING THE ANTENNA

Follow these steps to attach the supplied flexible antenna to the
connector on the top of the scanner.

1.  Align the slots around the antenna's connector with the protrusions
    on the jack.

2.  Press the antenna down over the jack and rotate the antenna's base
    clockwise until it locks into place.

Connecting an Optional Antenna

The antenna connector on your scanner makes it easy to use your scanner
with a variety of antennas.  Instead of the supplied antenna, you can
attach a different one, such as an external mobile antenna or outdoor
base antenna.  Your local Radio Shack store sells a variety of antennas.

Use coaxial cable to connect an outdoor antenna.  Always use 50-ohm
coaxial cable, such as RG-58 or RG-8.  For lengths over 50 feet, use RG8
low-loss dielectric coaxial cable.  If the antenna's cable does not have
a BNC connector, you will also need a BNC adapter (available at your
local Radio Shack store.)

CONNECTING AN EARPHONE/HEADPHONES

For private listening, plug an earphone or headphones into the
earphone jack on top of the scanner.  This automatically disconnects
the internal speaker.  We recommend Radio Shack's earphone (Cat. No. 33-
175) or mono headphones (Cat. No. 20-210).

Listening Safely

To Protect your hearing, follow these guidelines when you use an
earphone/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 headphones or an earphone while you drive a vehicle or ride a
bicycle.  This can create a traffic hazard and is illegal in some areas.

Even though some headphones and earphones are designed to let you hear
some outside sounds when you listen at normal levels, they still present
a traffic hazard.

CONNECTING AN EXTENSION SPEAKER

In a noisy area, an extension speaker (such as Radio Shack Cat. No.
21-549) or an amplified speaker (such as Radio Shack Cat. No. 21-541),
positioned in the right place, might provide more comfortable, listening.
Plug the speaker cable's 1/8-inch mini-plug into the scanner's earphone
(ohm) jack.

RESETTING THE SCANNER

If the scanner's display locks up or does not work properly after you
connect a power source, you might have to reset the scanner.

Caution:  This procedure clears all the information you have programmed
          into the scanner.  Use this procedure only when you are sure
          the scanner is not working properly.

1.  Turn off the scanner.

2.  While you press and hold down the 2 and 9 keys, turn on the scanner.

USING THE BELT CLIP

You can use the supplied belt clip to make the scanner easier to use when
you are on the go.  Use the two supplied screws to attach the belt clip
to the scanner.  Then slide the belt clip over your belt or waistband.

(BR/smc-05/16/94)