HTX-100 Mobile Transceiver
(190-1101)                 Installation               Faxback Doc. # 39455


INSTALLING YOUR TRANSCEIVER

You can install your transceiver in your vehicle, boat, or home.
You can even set up several places for your transceiver.  To install
your transceiver in several places, you need an extra power cord
(Radio Shack Cat. No. 21-550) and a 6-amp slow-blow fuse
(Cat. No. 270-1291).

Read the instructions carefully.  if you are unsure of any connection,
have a professional installer complete the installation.

MOBILE INSTALLATION

Mounting Your Transceiver

1.  Select a location for your transceiver that is convenient and not in
    the way of the driver or passengers in the vehicle.

2.  Use the supplied mounting bracket as a template, and mark the
    locations of the four screw-holes on the mounting surface.

3.  Drill 1/16-inch pilot holes for the supplied screws at the marked
    locations.  Take care not to drill into or damage objects behind the
    mounting surface.

4.  Secure the bracket to the mounting location using the supplied
    self-threading screws, flat washers and lock-washers.

5.  Attach the microphone holder to either the left or right side of your
    transceiver, as shown, using the supplied screws and washers.

6.  Attach your transceiver to the mounting bracket using the four
    mounting knobs.

7.  Plug the microphone into the microphone jack on the front of your
    transceiver and secure it with the threaded metal collar.

Connecting a Mobile Antenna

Of course, before you connect an antenna to your transceiver, you must
first select the appropriate antenna.  Radio Shack stores sell several
antennas suitable for use on the 10-meter band.  These antennas are
designed for citizen's band radio, but can be easily adjusted to work
perfectly on the 10-meter band.  Follow the instructions that come with
the antenna to trim the element to the correct length.

If you do not buy the antenna from a Radio Shack store, you probably need
to buy antenna cable for your antenna.  We designed your transceiver to
operate into a 50-ohm load.  We recommend that you use RG-58/U cable to
connect the antenna to your transceiver.  This cable has the correct
ratings for best performance.

1.  Mount the antenna on a suitable location on your vehicle according to
    the antenna's instructions.  For best performance, position the
    antenna as high as possible on your vehicle.

2.  Route the antenna cable to the location of your transceiver.  Be sure
    to avoid sharp edges to or moving parts that might damage the cable.
    Also, do not route the cable next to power cables, other antenna
    cables, or through areas of extreme heat.

3.  Screw the antenna cable's connector onto the AT connector on the back
    of your transceiver.

    If necessary, remove the transceiver from the bracket to access the
    connector.

Connecting to Power

We designed your transceiver to connect to a 12-volt, negative ground
power system.  This is the most common type of power system used in
vehicles, but determine the type of power system your vehicle uses before
you connect power.  If you cannot determine the polarity of your vehicle
or are unsure, contact your dealer for information.

    Warning:

    Do not connect power if you have not installed an antenna.
    Transmitting without an antenna attached damages your transceiver.

1.  Use a voltmeter or test light to locate a point on the vehicle's fuse
    block that provides power only when the vehicle's ignition is in the
    ON or ACC position.  Then, turn off the ignition and remove the fuse
    from that point on the fuse block.  Turn on the ignition, and
    determine which side of the fuse now has voltage.  This is the battery
    side of the fuse.  Mark this point, and replace the fuse you removed.

2.  Disconnect the vehicle's positive (+) terminal cable.  This prevents
    damage to your vehicle or your transceiver if you accidentally cross a
    wire.

3.  Connect the bare end of the red wire to the point you marked in
    Step 1.

4.  Connect the bare end of the black wire to a metal chassis part.

    Note:

    Modern vehicles have many non-metallic parts.  If you connect the
    black wire to one of these parts, or if one of these parts insulate
    the black wire from the vehicle's main chassis, your transceiver does
    not work.

5.  Reconnect the vehicle's positive terminal cable.  Turn on the ignition
    and use a voltmeter or test light to confirm that +12V is supplied to
    the connector.

6.  Turn off the ignition, and plug the power cord's connector into the
    POWER jack on the back of your transceiver.

    Note:

    The power cord's connector and the POWER jack are polarized, so the
    connector only plugs in one way.

MARINE INSTALLATION

You can mount your transceiver in your boat, but be sure to protect it
from spray and splash.  Your transceiver is not waterproof and could be a
serious hazard if you try to operate it when it is wet.  Also, if salt
water gets on or in your transceiver, the controls and connections will
corrode.

Mounting Your Transceiver

When selecting a place to mount your transceiver in a boat, keep in mind
the following guidelines.

Select a location that:

    Is sturdy enough to support your transceiver.

    Is not exposed to spray or splash.

    Is close to the battery or fuse block.

    Allows you to route the power cord away from the engine compartment
    and walkways.

    Is as close to the antenna as possible.
    See "Connecting to a Marine Antenna" for further considerations.

    Is shielded from direct sunlight.

    Is several feet away from the compass.

1.  Use the supplied mounting bracket as a template, and mark the
    locations of the four screw holes on the mounting surface.

2.  Drill 1/16-inch pilot holes for the supplied screws at the marked
    locations.  Take care not to drill into or damage objects behind the
    mounting surface.

3.  Secure the bracket to the mounting location using the supplied
    self-threading screws, flat washers and lock-washers.

4.  Attach the microphone holder to either the left or right side of your
    transceiver, as shown, using the supplied screws and washers.

5.  Attach your transceiver to the mounting bracket using the four
    mounting knobs.

6.  Plug the microphone into the microphone jack on the front of your
    transceiver and secure it with the threaded metal collar.

Connecting a Marine Antenna

See "Connecting a Mobile Antenna" for information on antenna selection.
An antenna mounted in a boat requires a ground that can be either a metal
hull or a ground made of tin-foil or copper sheeting.  This ground should
cover an area of 12 square feet (1 square meter) or more and connect to
the outer shield of your antenna cable.  Your transceiver should also
have an adequate ground.

1.  Mount the antenna on a suitable location on your boat according to the
    antenna's instructions.  For best performance, position the antenna as
    high as possible on your vehicle.

2.  Route the antenna cable from the antenna to the location of your
    transceiver.  Be sure to avoid sharp edges or moving parts that might
    damage the cable.  Also, do not route the cable next to power cables,
    other antenna cables, or through areas of extreme heat.

3.  Screw the antenna cable's connector onto the ANT connector on the back
    of your transceiver.

Connecting to Power

1.  Determine where you are going to connect the power cable.  If your
    boat has a fuse block, see Step 1 of "Connecting to Power" under
    "Mobile Installation."  If your boat does not have a fuse block, you
    will connect the power cable directly to the positive (+) terminal on
    the battery.

2.  Connect the bare end of the red wire to the point you determined in
    Step 1.

3.  Connect the bare end of the black wire to an electrical ground, such
    as the negative (-) terminal of the battery.

4.  Plug the power cord's connector into the POWER jack on the back of
    your transceiver.

    Note:

    The power cord's connector and the POWER jack are polarized, so the
    connector plugs in only one way.

    Warning:

    Do not connect power if you have not installed an antenna.
    Transmitting without an antenna attached damages the transceiver.

FIXED INSTALLATION

When you are installing your transceiver at a fixed location, positioning
is not critical.  Place it where it is easy to operate, and where it is
not in any danger of being dropped.

Connecting a Fixed Antenna

1.  Select an outdoor antenna that is designed for the 10-meter band or
    that can be tuned to the 10-meter band.

2.  Install the antenna according to its instructions.

3.  Route the antenna cable to the location of your transceiver.

4.  Screw the antenna cable's connector onto the ANT connector on the
    back of your transceiver.

WARNING   WARNING   WARNING

When you are installing or removing a fixed station antenna, use extreme
caution.  If the antenna starts to fall, let it go!  It could contact
overhead power lines.  If the antenna is in contact with the power line,
touching it could kill you!  Call the power company and have them remove
the antenna.  Do not attempt to remove the antenna yourself.

Connecting to Power

When you use your transceiver at a fixed location, you must have an
adequate power supply.  Select a power supply that provides a regulated
12-14 volts and that can supply at least 6 amps.

    Note:

    Make all power connections with the power supply turned off.

    Warning:

    Do not apply power to the transceiver if you have not connected an
    antenna.  Transmitting without an antenna attached damages your
    transceiver.

1.  Connect the bare end of the red wire to your power supply's positive
    (+) terminal.

2.  Connect the bare end of the black wire to your power supply's negative
    (-) terminal.

3.  Plug the power cord's connector into the POWER jack on the back of
    your transceiver.

    Note:

    The power cord's connector and the POWER jack are polarized, so the
    connector plugs in only one way.

Attaching the Microphone

1.  Attach the microphone holder to the right or left side of your
    transceiver using the supplied screws and washers.

2.  Plug the microphone cord's connector into the MICROPHONE jack on the
    front of your transceiver and secure it with the threaded metal
    collar.

CONNECTING AN EXTERNAL SPEAKER

In a noisy area, an external speaker such as Radio Shack's
Cat. No. 21-549, positioned in the right place, might provide more
comfortable listening.  Simply plug the speaker cable's 1/8-inch plug
into the EXT.SP. jack on the back of your transceiver.  This disconnects
the internal speaker.

CONNECTING HEADPHONES

For private listening, plug a set of mono headphones such as Radio Shack's
Cat. No. 20-210 into the phones jack.  This automatically disconnects the
speaker.

CONNECTING A CODE KEY

1.  Attach a shielded cable with a 1/8 inch (mini) plug (not provided) to
    the code key.

2.  Insert the code key's plug into the KEY jack on the back of your
    transceiver.

(br/km-05/12/1997)

Privacy Policy