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Section - Installation
Frequency Planning
The DXN-220 is capable of operating between frequency bands of 800MHz and 1500MHz. In order to avoid interference
between the DXN-220 device and other devices on the same cable network, DXN-220 device must operate at a
frequency spectrum that is different from other devices.
• 5-42MHz (High-speed Internet Access Upstream)
• 42-850MHz (High-speed Internet Access downstream)
• 50-806MHz (Off-Air TV)
• 50-860MHz (Cable TV)
• 950-2150MHz (Satellite L-Band)
One common scenario is where DXN-220, cable television and high-speed Internet service need to coexist.
The cable television in United States operates between 50-860MHz while high-speed Internet service upstream
and downstream operate between 5-42MHz and 42-850 MHz respectively. Hence, the logical choice for
DXN-220 frequency would be between 940-1500MHz. Similar frequency planning approach should be taken into
consideration when dealing with Satellite and off-air antenna.
Terrestrial Television (Off-Air)
If you are receiving terrestrial television service using a broadband antenna, then additional components may have
to be installed in order to be compliant with governmental regulations. DXN-220 network signals operating in the 800
to 1500 MHz range should be prevented from radiating out of the antenna by using a small, in-line Low Pass Filter
(LPF-860Mhz). This filter will prevent DXN-220 network signals from reaching the antenna.
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