Rev 1

January 2006

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TA0321

TECHNICAL ARTICLE

Lightning protection for LNB supply and control voltage regulator

Introduction

Communication satellites operate within two frequency bands for TV/Broadband service broadcast

signals, C Band and Ku Band. The C Band overall frequency spectrum is 4.0 GHz - 8.0 GHz, while the Ku

Band overall frequency spectrum is 10.7 GHz - 18.4 GHz.

Within these bands each satellite has a specific uplink and downlink frequency allocation.

For example:

To use the frequencies that are available for satellite broadcast as efficiently as possible, and to

accommodate an additional number of channels within a given frequency band, the transmission signal

can be formatted to be either vertical and horizontal, or circular right-hand and circular left-hand

simultaneously per frequency.

UPLINK

DOWNLINK

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