VU-210XR Antenna  (150-2157)         Preparation       Faxback Doc. # 3922

Prepare the antenna for installation as follows:

1.  Grasp each element near its pivot point and unfold or turn it so it
    locks into place.

2.  Assemble the two wing boom brackets to the hole in the main boom,
    located behind the folded UHF dipole.  Attach using screw and wing nut
    supplied.

    Then, insert the wing booms into the bracket and secure with screws
    and wing nuts supplied.

3.  Use the supplied hardware to assemble the two antenna sections.

4.  Use the supplied hardware to secure the ends of the crossover wires to
    the rivets maintaining the crossover pattern.

5.  Use the supplied hardware to loosely attach one of the supplied mast
    clamp assemblies to the antenna's main boom.

6.  Loosely attach the other mast clamp assembly to the cradle boom.  Then
    attach the H-blocks to the cradle boom.

7.  Insert the supplied end plugs into the ends of the cradle boom and
    each antenna boom.

8.  Fold out the two halves of the UHF dipole until they lock into place. 
    (They should be at right angles to the main boom.

    NOTE:  Both sections of the isolation network should remain parallel
           to the main boom.

9.  Place the free end of each half of the UHF dipole over the
    corresponding threaded lead-in terminal.

ATTACHING TO THE MAST

Attach the cradle boom and antenna to the mast as follows.

CAUTION:  The crossover wires must not touch the antenna boom, the mast,
          or each other.  If necessary, carefully bend the crossover wires
          to provide at least 1/2 inch clearance.

1.  Slide the cradle boom's mast clamp assembly over the end of the mast
    to about 10 inches from the top of the mast.

    The tighten the nuts enough to hold the cradle boom in place.

2.  Snap the antenna's main boom into the cradle boom's H-blocks.

    Then tighten the mast clamp assembly's nuts enough to hold the antenna
    in place.

3.  Position the antenna so the shorter elements point toward the stations
    you want to receive.

4.  Tighten the nuts for both mast clamp assemblies, but do not over
    tighten.

5.  If you install an antenna rotator, follow its instruction sheet for
    positioning the antenna.

(ALL-01/05/95)