EBOOK - Wireless Systems Guide for Antenna Setup (Gino Sigismondi & Crispin Tapia) | Cộng đồng Kỹ thuật cơ điện Việt Nam EBOOKBKMT

EBOOK - Hướng dẫn thiết lập hệ thống không dây cho Atenna (Gino Sigismondi & Crispin Tapia).

ANTENNA TYPES.

The size of an antenna is directly related to the wavelength of the frequency to be received. The most common types used in wireless audio systems are 1/4-wave and 1/2-wave omni-directional antennas, and unidirectional antennas.

CONTENTS:

Section One . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Antenna Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Omnidirectional Antennas. . . . . . . . . . . . . . . . . . . 5
Unidirectional Antennas. . . . . . . . . . . . . . . . . . . . . 5
Antenna Placement. . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Antenna Spacing. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Antenna Height . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Antenna Orientation . . . . . . . . . . . . . . . . . . . . . . . . 7
Antenna Distribution. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Passive Splitters (2 receivers). . . . . . . . . . . . . . . . . 7
Active Antenna Distribution
(3 or more receivers) . . . . . . . . . . . . . . . . . . . . . . . 8
Antenna Remoting. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Antenna Combining. . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Multi-room Antenna Setups. . . . . . . . . . . . . . . . . . 10
Antenna Combining for
Personal Monitor Transmitters . . . . . . . . . . . . . . . . 10
Quick Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Suggested Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Section Two. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 receivers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3-4 receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5-8 receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9-12 receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
13-16 receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Large system: 50 channels . . . . . . . . . . . . . . . . . . 13
Antenna combining:
2-4 systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5-8 systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9-12 systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
13-16 systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
...

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