Dish Network DuoDVR ViP 722k, User Manual

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Connections and Setup
129
Connecting an Over-the-Air Antenna
To get the best possible reception of digital TV signals, make sure you use the best over-
the-air antenna for where you live:
• You can receive a limited number of channels using a rabbit ears-type antenna on top
of the TV set, or a much larger number via a large UHF/VHF indoor/outdoor antenna.
• The higher the quality of the antenna you use, the greater its range and the better its
reception will be, whether you are using it to receive digital or analog signals (or both).
Digital OTA Broadcasts are Still Developing
• Broadcasters may still be testing the transmission of digital signals and their strength,
and may stop broadcasting without notice, vary power output, or turn signals on or off.
• Some broadcasters may not have a permanent tower yet for digital transmissions.
• Broadcasters may choose to multicast, which allows them to provide multiple
standard-definition channels in the same bandwidth used to provide a high-definition
channel.
All these different factors are outside of DISH’s control.
Additional Installation Considerations
• Follow local and National Electric Code requirements for grounding the antenna.
• RG-6 coaxial cable is preferred for the O
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line. If you are
diplexing the O
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and S
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cables, then RG-6 coaxial
cable must be used.
• You cannot use a diplexer to combine the O
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and S
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cables if you are using an amplified TV antenna of any kind. If your antenna must be
plugged in to AC power, then it is probably an amplified antenna.
• If you are using a diplexer to combine the TV2 Home Distribution signal of the receiver
and the signal for
O
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, you must use a Super Home Node to
prevent accidentally broadcasting the Home Distribution signal via your antenna.
If you have any questions about over-the-air channels, contact the local broadcasters, not
DISH. DISH delivers TV programming via satellite and does not broadcast any over-the-
air TV signals; therefore, DISH cannot do anything to change over-the-air signal quality.
However, when the optional over-the-air digital TV tuner module is installed, the satellite
TV receiver's local channel setup menu provides a signal strength indicator bar that you
can use to help in aiming your over-the-air TV antenna for the strongest possible signal.