Mast-Mount Amplifier  (150-1108)    Installation       Faxback Doc. # 7230

Antenna Unit

Caution:  For outdoor antennas, always install an antenna grounding
          system.

The antenna unit mounting clamp is supplied with 2 pair of inserts.  Use
the clamp by itself for a Radio Shack antenna with a 1-inch boom.  Use
either the round or square insert appropriate for your antenna
installation.

1.  Place the clamp around the boom, and put the clamp screw through the
    hole in the clamp.  Start the nut on the screw.

2.  To prevent water leakage, insert the antenna unit with the holes
    facing down.  Tighten the screw to secure the antenna unit and the
    clamp in place.  Do not overtighten the screw.

Caution:  If the antenna is mounted on or near a chimney, position the
          antenna unit so that it is not directly over the flue.

3.  Connect the 300-ohm flatlead from the antenna unit to the screw
    terminals of the antenna.  Follow the directions provided with your
    antenna to verify the proper terminals.

Note:  To assure full protection against the effects of weather, you can
       apply a coating of Rubber Sealant (Cat. No. 64-2314) to the antenna
       connections.  Use Connector Sealant Tape (Cat. No. 278-1645) to
       protect all exterior coaxial connectors.

4.  Attach one end of a continuous length of 75-ohm coaxial cable to the
    F-connector of the antenna unit.

    Choose a length of cable sufficient to reach from the antenna to your
    TV or receiver.  Radio Shack has various pre-made lengths of cable
    with boots and connectors in place.  If you choose to assemble your
    own coaxial cable, use the supplied weatherboot at the antenna unit
    connection.

    Do not splice the cable  or install any in-line devices such as
    splitters, or filters.  You can install a Gounding Block
    (Cat. No. 15-909), which passes DC current and provides a connection
    point for a static discharge ground rod.

5.  Use either standoffs or weather-resistant electrical tape, to secure
    the cable to the antenna mast.  Use standoffs to secure the cable to
    the building as you bring the cable to your TV.

Notes:  If you use a power rotator on your antenna, be sure to leave
        enough cable slack to permit unrestrained rotation of the upper
        section.

        Also allow a slight amount of slack (called a drip loop) where the
        cable enters your house.

House Unit

WARNING:  TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK.  DO NOT EXPOSE
          THIS APPLIANCE TO RAIN OR MOISTURE.

    The house unit is designed only for indoor use.

    Do not mount the unit to any electrical equipment or your TV set.

1.  Install the house unit near the TV or FM receiver and close to a
    standard AC outlet.  Attach the unit to a wall or baseboard, using the
    provided mounting screw.

2.  Connect the coaxial cable that comes from the antenna unit to the FROM
    AMP terminal on the house unit.  Do not overtighten the connector.

3.  Connect one end of a short length of cable to the TO TV terminal of
    the house unit.

4.  Connect the other end of that cable to the receiving unit(s).

    For connection to a single unit with a 75-ohm input, connect the cable
    directly to the input.

    For connection to a single unit with a 300-ohm input, use a
    75 to 300 ohm transformer, Cat. No. 15-1140.

    For connections to UHF/VHF TV terminals and an FM receiver, use a
    VHF/UHF/FM splitter, such as Cat. No. 15-1252.

Caution:  Be sure not to reverse the TO TV and the FROM AMP connections.
          Non-hazardous, low voltage is present at the FROM AMP terminal
          of the house unit.  This voltage might damage a receiver if
          connected in error.  The FROM AMP terminal must be connected
          only to the antenna unit.

5.  When all connections are made and double-checked, plug in the house
    unit.

Multiple TV Connections

The output of the house unit, labeled TO TV, can supply a signal to more
than one TV.

Use either an amplified coupler or a passive splitter (Cat. No. 15-1141).

(br/all-7/19/94)