Example of Dip Switch Settings
Switch Band/Channels
1 2 3 4
E3200
HS-2
Cable or
Antenna
Channel Vision
MULTI ROOM VIDEO TECHNOLOGY
CVT - 15PIA
Source A/V Inputs
HS-3
Antenna (14-78)
Antenna (14-39) &
Cable (91-135)
E3200 Basic Setup
Note: Be sure to remove power from outlet before changing DIP
switch settings.
Note: Switch positions are relative to back of modulator.
Note: Black indicates where the switch should be.
Reverse isolation is used to prevent the signal from your E Series from leaking
out to the antenna or cable input. Reverse isolation is accomplished by placing
an amplifier between your antenna or cable company input and the E Series
combiner. This prevents the E Series signal from propagating back up the input
line.
Another way to prevent leakage from your system is to cap all unused coax
cable ports on you network with appropriate terminators.
Bandpass filters stop unwanted frequencies while passing all others along.
They're handy if a channel you want to use for a E Series source is already in
use.
Taps are used to redirect a portion of a signal from the "main" trunk line while
passing the remaining signal strength through. For example, a 12dBmV tap
would pass 29dBmV from a 30dBmV trunk line signal and pass the remaining
18dBmV to a branch line. (Minor signal loss of 1dB would occur in the trunk
line leaving 29dBmV.)
Demodulators are used to demodulate the output of a cable box converter,
making it possible to assign the cable signal to any channel (cable boxes usually
limit your choices to channel three or channel four). Use a demodulator to
"condition" the cable signal before assigning it to a E Series input line.
Adjustments
Stereo Loop: Used to pass stereo to TV on non-stereo modulator. 75Ω position
is normal, 1KΩ position if using stereo loop.
Video Level Adjustment: Adjust the incoming video source base band level.
Use only to increase brightness and balance the channels for consistent
contrast. Spectrum analyzer use is suggested.
Channel Select: Used to select the input source (A, B or C), you wish to
change. Also has a lockout feature to prevent the end user from changing
channels. Press and hold for 2 seconds or until front light blinks to allow
channel up/down to work.
Channel Up/Down: Changes the modulated channel.
DIP Switch Setting: Selection of TV frequency band. UHF = Antenna, Ultra =
Cable.
System Installation Checklist
1. Try for 10dB of signal strength at each television. Use a little more for big
screen TV's. Remember, Uncle Sam doesn't like more than 15.5dB of signal
going into any TV.
2. When laying out your system, there will be approximately 5dB of signal loss
per 100' of RG6.
3. Be sure ALL of your splitters and amplifiers are broadband. Splitters should
be 5MHz to 1GHz, and amps should be 40MHz to 1GHz.
4. Check and make sure that all television are set up for the proper frequency
spectrum (i.e. UHF or cable).
5. Make sure that the channels you want to modulate on have clean "snow".
No lines or interference.
6. Use a low pass filter on every installation to clean up the frequencies the
Cable (65-135)
Setting Up TV Channel Range
(8 pages)
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