Curtis TVD2000A - Manual (Page 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 the 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.
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 thetransformer to the combiner,
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 combiner
to the RF IN jack.
10
If using a flat UHF 300 ohm twin-lead wire,
connect these flat wires to an optional 75/300
ohm matching transformer/adapter (available
at many retailers), and then connect the
adapter to the 'RF' IN connector on the back
of the television.