Posted 11 June 2013 - 01:57 PM
DIRECTV has a patent for an ODU using a frequency selective surface that would reflect the Ku signal to a feedhorn on the dish arm, and allow the Ka signal to pass through this surface to the feedhorn at the end of the arm. The patent description indicates that a Ka/Ku feedhorn isn't possible due to the wide range of frequencies. It does say that moving the Ku feedhorn would allow "improved reception efficiency for all the feedhorns". This change would be necessary for receiving Ka and Ku signals from 101 and the patent description doesn't specifically discuss the capabilities of the current dish with regard to Reverse band frequencies.
And here is that patent:
Very interesting stuff!
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