OmniDirectional FM Antenna  (150-2164)  Installation   Faxback Doc. # 7623

The OMNIDIRECTIONAL OUTDOOR FM Antenna is specially designed to provide
improved performance compared to similar-sized antennas.

ASSEMBLING THE ANTENNA

We recommend you assemble the entire antenna on the ground, then mount the
assembled antenna on the mast.  Follow these steps to assemble the
antenna.

1.  Fold out the elements by holding them near the boom and unfolding them
    until they snap into place.

    Note:  Be sure the metal brackets snap into the slots in the plastic
           insulators.  If they do not, use pliers to bend the bracket
           slightly so they will snap into place.

2.  Press the supplied end plugs into the ends of the antenna boom.

CONNECTING LEAD-IN CABLE TO THE ANTENNA

Follow these steps to connect lead-in cable to the antenna.  We recommend
RG-6 cable and, if you prepare your own cable, a quality CF-56F-connector
(both available at your local Radio Shack store).  You can also use 300-
ohm flat, twin-lead cable.

Note:  If you prepare your own coaxial cable, slide a matching
       transformer's weather boot over the end of the cable before you
       attach the F-connector.

Follow these steps if you use coaxial cable.

Use the supplied hardware to connect the loose ends of the 9-inch
intercoupler and the matching transformer to the antenna's lead-in
terminals labeled CONNECT LEAD-IN AND INTERCOUPLER HERE.

Notes:  Use plastic tape to secure the cable to the mast at about 3 foot
        intervals.

        Use coaxial nail clips every few feet to secure the cable to
        walls.

        Use a 75-ohm grounding block to ground the cable where the cable
        enters the house.

        Use a wall-through tube to neatly route the cable through walls.

Follow these steps if you use twin-lead cable.

1.  Split the cable for a length of about 3 inches.  Then remove about 1/2
    inch of insulation from the ends of the twin-lead cable.

2.  Use the supplied hardware to attach the loose ends of the 9-inch
    intercoupler and the ends of the twin-lead cable to the antenna's
    lead-in terminals, labeled CONNECT LEAD-IN AND INTERCOUPLER HERE.

Notes:  Allow enough slack between the strain-relief tab and the antenna
        terminals to prevent stress on the cable or terminals.

        Be sure the cable remains at least 4 inches away from all metal
        surfaces.

        Use standoff insulators about every 4 feet.

        Twist the cable about three turns between each stand off.

        Use a 300-ohm static discharge unit to ground the twin-lead cable
        at the point where wire enters the house.

ATTACHING TO THE MAST

Note:  The type and position of your mast and mast mounting might affect
       the order in which you perform the steps below.  Plan carefully.

1.  Attach the mast clamp and adapter plate to the mast at the desired
    location using the hardware provided.

2.  Using the supplied hardware, attach the antenna to the mast clamp
    adapter plate with the lead-in terminals facing away from the mast.

SETTING UP THE MAST

How you set up your mast depends on your specific installation.

CONNECTING TO THE FM RECEIVER

Connect the antenna's lead-in cable to your FM receiver's antenna
terminals according to the type of cable you used.  A few methods are
as follows:

If you have:

Coaxial antenna lead-in
Twin-lead FM antenna terminals
We recommend you use Radio Shack Cat. No. 15-1140, Indoor/Outdoor Matching
Transformer.

If you have:

Coaxial antenna lead-in
Coaxial FM antenna terminal, plug it in.

If you have:

Twin-lead antenna lead-in
Twin-lead FM antenna terminals, attach it with screws.

If you have:

Twin-lead antenna lead-in
Coaxial FM antenna terminal
We recommend you use Radio Shack Cat. No. 15-1253, Matching Transformer

(br/all-9/20/94)