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- Hunter uses state-of-the-art radar technology to find nonlinear distortions
in a cable television network, specifically sources of common path distortion (CPD).
- When signals are transmitted through a source of CPD, intermodulation
products are created, which is why CPD is a problem to CATV operators.
- Xcor uses existing analog and digital video channels as its radar-probing
signal, eliminating the need for any additional bandwidth.
Information about the transmitted channels is then compared with echoes caused
by the CPD source to calculate the precise time distance to the source.
- In order to find the exact device, the time distance is compared to a
database containing information on devices in the plant. The technician then
will fix the problem.
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State-of-the-art radar technology finds nonlinear distortions in a cable television network
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Cross correlation techniques determine time distance to the CPD
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Xcor uses existing analog and digital video channels as its radar-probing signal
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The exact device is pinpointed and the technician fixes the problem
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Information about the transmitted channels is then compared
with echoes caused by the CPD source to calculate the precise
time distance to the source
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