11
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 12 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.
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