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TA0321

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TA0321 数据手册

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:

■ Ku Band downlink frequency is 10.7 GHz-12.75 GHz and uplink frequency is 17.3 GHz-17.8 GHz.

■ C Band downlink frequency is 3.7 GHz-4.2 GHz and uplink frequency is 5.925 GHz-6.425 GHz

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

Rev 1

1/12

January 2006

www.st.com

12 3 4 5 6 7...12

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型号	品牌	获取价格	描述	数据表
TA032100BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block
TA032120BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block
TA032121BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block
TA032130BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block
TA032140BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block
TA032142BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block
TA032150BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block
TA032161BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block,
TA032180BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block
TA032181BBJ0G	AMPHENOL	获取价格	Barrier Strip Terminal Block