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RadioShack Pro 28 Programmable Scanner Reciever Owners Manual

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    							11
    1. Connect the adapter’s blue-tipped barrel plug to the adapter’s cord
    and set the barrel plug’s tip to positive.
    2. Insert the adapter’s blue-tipped barrel plug into your scanner’s
    POWER jack. 
    Note:
     If you installed rechargeable nickel-cadmium batteries in the
    scanner, remove the plastic cap from the 
    CHARGE jack and put the
    cap in the 
    POWER jack. Connect the AC adapter to the CHARGE
    jack. This powers the scanner and recharges the batteries at the
    same time. See “Charging Nickel-Cadmium Batteries.” 
    3. Plug the adapter’s power module into a standard AC outlet.
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    USING VEHICLE BATTERY POWER
    You can power the scanner from your vehicle’s cigarette lighter socket
    with an optional DC cigarette lighter power cord (such as Cat. No. 270-
    1533).
    Cautions:
    • The recommended DC power cord supplies 12 volts and delivers
    at least 200 milliamps. Its center tip is set to positive and its plug
    properly fits the scanner’s 
    POWER and CHARGE jacks. Using a
    power cord that does not meet these specifications could damage
    the scanner or the power cord.
    • To protect your vehicle’s electrical system, always plug the power
    cord into the scanner before you plug it into your vehicle’s ciga-
    rette-lighter socket. Always unplug the power cord from the vehi-
    cle’s cigarette lighter socket before you unplug it from the scanner.
    Note: 
    The scanner receives a 12-volt input at the 
    CHARGE or POWER
    jack and reduces it to the 6 volts required by the scanner.
    1. Plug the power cord’s barrel plug into your scanner’s 
    POWER jack.
    2. Plug the other end of the power cord into your vehicle’s cigarette-
    lighter socket. 
    Notes:
    • If you installed rechargeable nickel-cadmium batteries in the
    scanner, remove the plastic cap from the 
    CHARGE jack and put
    the cap in the 
    POWER jack. Connect the DC power cord to the
    CHARGE jack. This powers the scanner and recharges the bat-
    teries at the same time. See “Charging Nickel-Cadmium Batter-
    ies.”
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    							13
    • If the scanner does not operate properly when you use a DC
    power cord, unplug the power cord from the cigarette lighter
    socket and clean the socket to remove ashes and debris. If it
    still does not operate properly, check the fuse in the power cord.
    CHARGING NICKEL-CADMIUM BATTERIES
    The scanner has a built-in circuit that lets you recharge nickel-cadmium
    batteries while they are in the scanner. To charge the batteries, remove
    the plastic cap from the scanner’s 
    CHARGE jack and put the cap in the
    POWER jack. Then connect an AC adapter or DC power cord to the jack
    (see “Using Standard AC Power” or “Using Vehicle Battery Power”).
    Warning:
     Do not connect either an adapter or power cord to the scan-
    ner’s 
    CHARGE jack if you installed non-rechargeable batteries (stan-
    dard, extra-life, or alkaline). Non-rechargeable batteries become hot
    and can even explode if you try to recharge them. 
    It takes about 10 to 18 hours to recharge batteries that are fully dis-
    charged. You can operate the scanner while recharging nickel-cadmium
    batteries, but the charging time is lengthened.
    The first time you use nickel-cadmium batteries, charge them at least 24
    hours to bring them to a full charge. 
    Notes: 
    • Nickel-cadmium batteries last longer and deliver more power if you
    occasionally let them fully discharge. To do this, simply use the
    scanner until it begins beeping every 15 seconds or   appears in
    the display.
    • To prevent permanent nickel-cadmium battery power loss, do not
    charge the batteries at temperatures above about 90°F.
    Important: 
    At the end of a rechargeable battery’s useful life, it must be
    recycled or disposed of properly. Contact your local, county, or state
    hazardous waste management authorities for information on recycling
    or disposal programs in your area. Some options that might be available
    are: municipal curb-side collection, drop-off boxes at retailers, recycling
    collection centers, and mail-back programs.
    B
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    							14
    CONNECTING THE ANTENNA
    Follow these steps to attach the supplied flexible antenna to the connec-
    tor on the top of your scanner. 
    1. Align the slots around the antenna’s connector with the tabs 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 the scan-
    ner 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.
    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 dielec-
    tric coaxial cable. If your antenna’s cable does not have a BNC connec-
    tor, you will also need a BNC adapter (available at your local Radio
    Shack store).
    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 anten-
    na, mast, cable or guy wires can cause electrocution and death! Call the
    power company to remove the antenna. Do not attempt to do so your-
    self.
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    							15
    CONNECTING AN EARPHONE/
    HEADPHONES
    For private listening, you can plug an earphone or mono headphones
    (such as Radio Shack Cat. No. 33-175 or 20-210) into the  jack on top
    of your scanner. This automatically disconnects the internal speaker.
    Listening Safely
    To protect your hearing, follow these guidelines when you use an ear-
    phone 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 vehi-
    cle or riding a bicycle. This can create a traffic hazard and is illegal in
    some areas.
    Even though some earphones and headphones are designed to let you
    hear some outside sounds when listening at normal volume levels, they
    still present a traffic hazard.
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    							16
    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 lis-
    tening. Plug the speaker cable’s 
    1/8-inch mini-plug into your scanner’s
     jack.
    ATTACHING THE BELT CLIP 
    You can attach the supplied belt clip to make your scanner easier to use
    when you are on the go. Use the supplied screws to attach the belt clip
    to the scanner. Then slide the belt clip over your belt or waistband.
    Belt Clip
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    							17
    UNDERSTANDING YOUR SCANNER 
    A LOOK AT THE KEYPAD
    Your scanner’s keys might seem confusing at first, but this information
    should help you understand each key’s function.
    SCAN — scans through the stored channels. 
    MANUAL — stops scanning and lets you directly enter a channel num-
    ber or frequency. 
    DELAY — programs a 2-second delay for the selected channel.
    L-OUT/S/S — lets you lock out a selected channel. Skips a specified fre-
    quency during band or direct search.
    CLEAR/. — erases an incorrect entry or an error. Enters the decimal
    point in a frequency. 
    MON/0 — stores frequencies into and accesses the monitor memory.
    Enters the number 0 for a channel or a frequency. 
    WX/E — scans through the preprogrammed weather channels. Stores a
    key entry into memory.
    KEYLOCK — locks/unlocks the keypad to prevent accidental program
    changes.
    t and s — enter the down or up search mode direction.
    HOLD/BAND — pauses the frequency search. Searches the selected
    band. 
    1-9 — enters the numbers for a channel or a frequency. 
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    							18
    A LOOK AT THE DISPLAY
    The display has several indicators that show the scanner’s current op-
    erating mode. A quick look at the display will help you understand how
    to operate your scanner.
    SRCH — appears during a band search (b also appears) or a direct
    search (
    d also appears).
    SCAN — appears when you scan channels.
    MAN — appears when you manually select a channel.
    MON — appears when you listen to a monitor memory.
    WX — appears when you scan the preprogrammed weather channels.
     — flashes when you lock the keypad.
     — appears when batteries are low.
    D — appears when you program a channel for a two-second delay be-
    fore scanning or when you listen to a channel programmed with the de-
    lay feature.
    L — appears when you manually select a locked channel, or during a
    search hold when the frequency is stored in search skip memory.
    t and s
     — indicates the search or weather scan direction. 
    Error — appears when you make an entry error.
    K
    B
    K
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    							19
    b — appears during a band search.
    d — appears during a direct search.
    H — appears during a band search hold.
    h — appears during a direct search hold.
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    OPERATION 
    TURNING ON THE SCANNER AND SETTING 
    SQUELCH
    1. Turn SQUELCH fully clockwise.
    2. Turn 
    VOLUME/OFF clockwise until it clicks. The scanner automati-
    cally scans the 30 channels.
    Note:
     The first time you turn on the scanner, the channels might
    not have any frequencies stored in them, but the scanner will con-
    tinuously scan the empty channels. 
    3. Press 
    MANUAL to stop the scanning. The display shows the cur-
    rent channel.
    4. Turn 
    VOLUME/OFF clockwise to set the scanner’s volume about
    half way.
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