2
Basic system
Use filter to clear out spectrum
for modulator channel. (e.g. Model 3102-60)
CVT2ub/uhf-II modulator
(Creating a camera channel.)
Connect cable
or antenna
Important!
All outputs must be
connected to a TV,
splitter or 75 ohm terminator
Back feeding a modulator
VCR (or DVD or Sat)
All TVs can tune
to the VCR channel.
CVT2ub/uhf-II
modulator
The
and
are amplified splitters that support several unique
features: a modulator input to add your own channels, the ability to back-feed a modulator if you
cannot run a separate modulator coax and an IR passive RF design that allows you to control
your video devices from any room in the home (extra equipment needed). The amplifiers are
HDTV and DTV approved and are compatible with ATSC broadcasts.
CVT-2/4PIA-II
CVT-2/8PIA-II
CVT-2/8PIA-II
CVT-2/8PIA-II
IR repeating
IR-3001
repeats IR pulses
IR-2300
detects
remote control
IR pulses
IR-2300
detects
remote control
IR pulses
IR systems need to have all unused outputs
connected to DC blocked terminators. The
Cable input also requires a DC block.
CPL94B
INJ94
INJ94
Cable modem
Cable modems should
be fed ahead of the
CVT amplified splitter.
From Cable
company
Using a Cable modem
HS-2
Variable attenuator
Filter
Filter
HS-2
Troubleshooting:
Diagonal lines on modulator channels only: Try moving the modulator to another
channel number. You may need to add a low pass to remove cable company noise.
Diagonal lines on many channels (vanish when you remove the CATV feed.) The RF
amplifier is being overloaded by over-strong cable signals. Add an attenuator to reduce
the signal strength.
3
0dB
20dB
CVT2ub/uhf-II
modulator
CVT-2/8PIA-II
CVT-2/8PIA-II
