Radio Shack Radio Antenna - Manual (Page 2)

2
UNFOLDING THE ANTENNA’S ELEMENTS
Hold the 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 posi-
tion, do not attempt to unlock them. Doing so might break the
self-locking tabs.
ATTACHING TO THE MAST
For the best FM reception, do not mount the FM antenna on the
same mast with a TV antenna. We recommend that you enlist
the help of another person before 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 information sheet for recommended meth-
ods.
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.
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.
ROUTING THE CABLE TO YOUR
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.
CONNECTING TO YOUR FM RECEIVER
Connect the antenna’s lead-in cable to your FM receiver’s antenna terminals according to the type of cable you used. RadioShack
carries a variety of matching transformers, if one of these suits your needs. Below are some sample connections.
Make connections as described if you have:
• Coaxial antenna lead-in
• Twin-lead FM antenna terminals
Mast
Toward FM
Stations’
Antennas
Long Element
Short Elements
RadioShack
Indoor/Outdoor
Matching Transformer
Cat. No. 15-1140
Connect to FM Receiver’s
300-Ohm Screw Terminals
Connect
Coaxial Lead-In
from Antenna
15-2163.fm Page 2 Wednesday, April 26, 2000 7:31 PM