Optimus STAV-3790 - Manual (Page 14)

14
Preparing Your Receiver
For the best radio reception, use an outdoor antenna. Follow these
steps to connect an outdoor FM antenna to the receiver using 75
Ω
coax-
ial cable.
Note: If your antenna has 300
Ω
twin-lead cable, consult your local
RadioShack store for the correct adapter.
1. Disconnect the supplied FM antenna from the receiver’s FM UNBAL
75
Ω terminal.
2. With a stripping tool, remove about 1 1 / 2 inches of the outdoor
antenna cable’s outer insulation to expose the cable’s shielding.
3. Fold back the shielding from the inner insulation.
4. Remove about 1 inch of the inner insulation from around the cen-
ter wire.
5. Pull the shielding to one side. Connect the center wire to the
receiver’s FM UNBAL 75
Ω terminal. Twist the shielding to secure any
loose wire strands, and connect it to the FM UNBAL 75
Ω terminal.
Note: Grounding is not necessary for reception, but we recommend it
for better FM reception and to avoid damage from lightning when you
use an outdoor FM antenna. Use a separate piece of thick polyvinyl
insulated wire to connect the
terminal to the building’s power ser-
vice grounding electrode system.
Warning: Never connect a wire to a gas pipe for grounding since sparks
might ignite the gas.
Warning: To prevent injury, read and fol-
low all cautions and warnings that ac-
company the outdoor antenna.
Caution: The cable’s shielding should
only touch the terminal.
Inner Insulation
Outer Insulation
Shielding
Center Wire
FM
UNBAL
75
LOOP
ANTENNA
AM
ANTENNA
Shielding
Center
Wire
Outdoor FM Antenna
31-3046.fm Page 14 Monday, January 29, 2001 12:43 PM