Zenith J3W41321A - Manual (Page 8)

8
If you are using an indoor or outdoor antenna, follow the instructions below that correspond to your antenna
system. If you are using a cable TV service (CABLE), see page 9 for Cable TV connections.
Combination VHF/UHF Antenna (Separate VHF and UHF 300 ohm Twin-lead Wires)
Combination VHF/UHF Antenna (Single 75 ohm Cable or 300 ohm Twin-lead Wire)
Antenna connections
75 ohm
Coaxial
Cable
300-75 ohm
Matching
Transformer
300-75 ohm
Matching
Transformer
UHF 300 ohm
VHF 300 ohm
UHF 300 ohm
VHF 75 ohm
Separate VHF/UHF Antennas (75 ohm VHF Cable and 300 ohm UHF Twin-lead Wires)
RF IN
jack
RF IN
jack
RF IN
jack
Combiner
RF IN
jack
Combiner
Connect the 75 ohm Cable from the Combination
VHF/UHF Antenna to the RF IN Jack.
If your Combination VHF/UHF Antenna has a 300
ohm Twin-lead Wire, the use of the 300-75 ohm
Matching Transformer may be necessary.
Connect the UHF 300 ohm Twin-lead Wire to the
Combiner (not supplied). Connect the VHF 300
ohm Twin-lead Wire to the 300-75 ohm Matching
Transformer. Attach the Transformer to the Com-
biner, then attach the Combiner to the RF IN Jack.
Connect the VHF 75 ohm cable and UHF 300 ohm
Twin-lead Wire to the Combiner. Attach the Com-
biner to the RF IN Jack.
J3W41321A_En_P02-09 24/03/2006, 2:22 PM 8