RadioShack Pro 70 Portable Scanner Reciever Owners Manual

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4. Slide the battery holder or battery pack into the com-
partment.
Caution: The battery holder or battery pack fits only
one way inside the battery compartment. Do not
force it.
5. Replace the cover.
If 
BATT flashes on the display, immediately replace all six
non-rechargeable batteries, remove and recharge all six
rechargeable batteries, or recharge the battery pack. See
“Charging a Rechargeable Battery Pack” on Page 13.
Caution: Always dispose of old batteries promptly and
properly. Do not bury or burn them.
Using Standard AC Power
To power the scanner from AC power, you need an AC
adapter such as RadioShack Cat. No. 273-1665. Plug the
adapter’s barrel plug into the scanner’s 
PWR/DC 9V jack.
Then plug the adapter’s power module into a standard AC
outlet.
PWR/DC 9V
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Warning: Do not use an AC adapter’s polarized plug with
an extension cord, receptacle, or other outlet unless the
blades can be fully inserted to prevent blade exposure.
Cautions:
• You must use an AC adapter that supplies 9 volts
and delivers at least 300 milliamps. Its center tip
must be set to negative, and its plug must correctly fit
the scanner’s 
PWR/DC 9V jack. The recommended
adapter meets these specifications. Using an
adapter that does not meet these specifications
could damage the scanner or the adapter.
• When you finish using the AC adapter, disconnect it
from the AC outlet first. Then disconnect it from the
scanner.
Using Vehicle Battery Power
To power the scanner from your vehicle’s cigarette lighter
socket, you need a DC Adapter, such as Cat. No. 270-
1560.
Cautions:
• You must use a DC adapter that supplies (regulated)
9-volt power and delivers at least 300 milliamps. Its
center tip must be set to negative, and its plug must
correctly fit the scanner’s 
PWR/DC 9V jack. The rec-
ommended adapter meets these specifications.
Using an adapter that does not meet these specifica-
tions could damage the scanner or the adapter.
• To protect your vehicle’s electrical system, always
plug the adapter into the scanner before you plug it
into your vehicle’s cigarette-lighter socket. Always
unplug the adapter from the vehicle’s cigarette-
lighter socket before you unplug it from the scanner.
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1. Connect the DC adapter’s orange barrel plug to the
adapter’s cable, with the tip set to – (negative).
2. Set the adapter’s voltage switch to 9V.
3. Insert the barrel plug into the scanner’s 
PWR/DC 9V
jack.
4. Plug the other end of the adapter into your vehicle’s
cigarette-lighter socket.
Note:
 If the scanner does not operate properly when you
connect a DC adapter, unplug the adapter from the ciga-
rette-lighter socket and clean the socket to remove ashes
and other debris.
Charging a Rechargeable Battery Pack
Your scanner has a built-in charging circuit that lets you
charge a rechargeable scanner battery pack (Cat. No. 23-
288, not supplied) while it is in the scanner. To charge a
battery pack, simply connect an appropriate AC or DC
adapter to the 
PWR/DC 9V jack.
Note:
 If you want to take the battery pack out of the scan-
ner to charge it, follow the instructions provided with the
battery pack.
It takes about 14-16 hours to recharge a battery pack that
is fully discharged. You can operate the scanner while re-
charging the battery pack, but the charging time is length-
ened.
1
2
34
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Note: A rechargeable battery pack lasts longer and deliv-
ers more power if you occasionally let it fully discharge. To
do this, simply use the scanner until 
BATT appears on the
display. Then fully charge the battery pack.
Important! At the end of a rechargeable battery pack’s
useful life, it must be recycled or disposed of properly.
Contact your local, county, or state hazardous waste man-
agement authorities for information on recycling or dispos-
al programs in your area. Some options that might be
available are: municipal curb-side collection, drop-off box-
es at retailers, recycling collection centers, and mail-back
programs.
CONNECTING THE ANTENNA
Follow these steps to attach the supplied flexible antenna
to the 
ANT jack on the top of your scanner.
1. Align the slots around the antenna’s connector with
the tabs on the 
ANT jack.
2. Press the antenna down over the jack and turn the
antenna’s base clockwise until it locks into place.
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Connecting an Optional Antenna
The antenna connector on your scanner makes it easy to
use the 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 station anten-
na. Your local RadioShack store sells a variety of anten-
nas.
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 an-
tenna’s cable does not have a BNC connector, you will
also need a BNC adapter (also available at your local Ra-
dioShack store).
Follow the installation instructions supplied with the anten-
na, route the antenna cable to the scanner, then connect
it to the 
ANT jack.
Warning:
 Use extreme caution when installing or remov-
ing 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, ca-
ble or guy wires can cause electrocution and death! Call
the power company to remove the antenna. Do not at-
tempt to do so yourself.
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CONNECTING AN EARPHONE/
HEADPHONES
For private listening, you can plug an earphone or mono
headphones (such as Cat. No. 33-175 or 20-210) into the
 jack on top of your scanner. This automatically dis-
connects 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 perma-
nent 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 vol-
ume level that does not cause discomfort might still
damage your hearing.
Traffic Safety
Do not wear an earphone or headphones while you drive
a vehicle or ride a bicycle. This can create a traffic hazard
and can be illegal in some areas.
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Even though some earphones and headphones let you
hear some outside sounds when you listen at normal lev-
els, they still can present a traffic hazard.
CONNECTING AN EXTENSION 
SPEAKER
In a noisy area, an extension speaker (such as Cat. No.
21-549) or an amplified 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
mini-plug into your scanner’s   jack.
USING THE BELT CLIP
You can use the belt clip attached to the back of the scan-
ner for hands-free carrying when you are on the go. Sim-
ply slide the belt clip over your belt or waistband.
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UNDERSTANDING THE PRO-70
A LOOK AT THE KEYPAD
Your scanner’s keys might seem confusing at first, but this
information should help you understand each key’s func-
tion.
WX — scans through the 10
preprogrammed weather
channels.
BAND — selects a prepro-
grammed search band.
SCAN — scans through the
programmed channels.
MANUAL — stops scanning and lets you directly enter a
channel number.
/  — begins searching up or down for active frequen-
cies, or selects the direction when you scan channels.
CLEAR — clears an incorrect entry.
PGM — programs frequencies into channels.
 — locks/unlocks the keypad to prevent accidental en-
tries.
LIGHT — turns on/off the display’s backlight.
Number Keys (
1-9) — enter a channel/frequency number.
0/MON — enters a zero or accesses the monitor memory.
./DLY — enters a decimal point (necessary when program-
ming frequencies), or programs a 2-second delay for the
selected channel.
E/L-OUT — (enter/lockout) enters frequencies into chan-
nels, or locks out channels so they will not be scanned.
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A LOOK AT THE DISPLAY
The display has indicators that show the scanner’s current
operation. A quick look at the display will help you under-
stand how to operate your scanner.
MAN — appears when you manually select a channel.
SCAN — appears when you scan channels.
WX — appears when you scan or manually search the 10
preprogrammed weather channels.
MON — appears when you listen to the monitor memory.
BATT — appears when the batteries are low.
L/O — appears when you manually select a channel you
locked-out while scanning.
SRCH — appears during band and direct frequency
searches.
/  — indicate the search or scan direction.
DELAY — appears when you program a 2-second delay
for a channel.
PGM — appears while you program frequencies into the
scanner’s channels.
 — appears when you lock the keypad.
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ch — the digits that precede this indicator (1—50) show
which channel the scanner is tuned to.
–d — appears during a direct frequency search.
000.0000 — the digits in the middle of the display show
which frequency the scanner is tuned to.
Error — appears when you make an entry error.
dUPL — (duplicate) appears when you try to store a fre-
quency that is already stored in another channel.
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