Radio Shack VU-75XR owner manual Unfolding the ANTENNA’S Elements, Attaching to the Mast

15-2151.fm Page 2 Wednesday, April 26, 2000 8:25 PM

UNFOLDING THE ANTENNA’S ELEMENTS

1.Hold the main boom’s elements near the pivot points and pull them away from the boom until they snap into the self- locking plastic support insulators.

Caution: To avoid damage to the elements, do not pull them near their outer ends. Once the elements are locked into position, do not attempt to unlock them. Doing so might break the self-locking tabs.

2.Hold each wing boom and turn its elements until they snap squarely into place (perpendicular to the boom).

3.Press the supplied small end plugs into the wing booms.

4.Bolt the triangular wing boom brackets onto the main boom using the supplied 11/2-inch screw and small wing nut, as shown.

Wing Boom	11/2-Inch
Brackets	Screw

Main Boom

Small Wing Nut

5.Insert the top and bottom wing booms into the wing boom brackets. Secure them with the four supplied 11/4-inch screws and small wing nuts, as shown.

Top Wing Boom

Wing Boom

Brackets

11/4-Inch

Screws

Small Wing Nuts

Bottom Wing Boom

ATTACHING TO THE MAST

We recommend that you enlist the help of another person be- fore you put up the mast or attach your antenna to it. How you set up your mast depends on your specific installation. Refer to the separate Consumer Product Safety Commission informa- tion sheet for recommended methods.

1.Slide the antenna’s mast clamp assembly over the end of the mast.

2.Tighten the mast clamp assembly’s lock nuts to hold the antenna in place. Do not overtighten the lock nuts.

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 of clearance between parts.

Crossover Wires

3.Set up the mast, then rotate it so the antenna’s shorter ele- ments point toward the broadcast antennas of the stations you want to receive.

Wing Boom Elements	Main Boom
	Short Elements

Toward TV

Stations’

Antennas

Mast Main Boom Long Elements

ROUTING THE CABLE TO YOUR TV/VCR/FM RECEIVER

If you use coaxial cable:

•Use plastic tape or mast standoff insulators to secure the coaxial cable to the mast at about 3-foot intervals. Continue down the roof and the side of the house using roof and wall standoff insulators.

•Use coaxial cable nail-in clips every few feet to secure the cable between the mast and where the cable enters the house.

•Use a 75-ohm grounding block at the point where the coax- ial cable enters the house. Read the Consumer Product Safety Commission sheet for grounding instructions.

•Use a wall-through lead-in tube (not supplied) to neatly route the coaxial cable through walls.

If you use twin-lead cable:

•Be sure the twin-lead cable remains at least 4 inches away from all metal surfaces.

•Use standoff insulators about every 4 feet. Twist the twin- lead cable about three turns between standoff insulators.

•Read the separate Consumer Product Safety Commission sheet for grounding instructions.

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