42
Using Omni Antennas in Multiple Universe Systems
SHoW DMX Neo will perform well in multiple universe systems. When setting up a system with
more than one transmitter using omni antennas, separate the transmitter antennas by 5 meters,
either by separating the transmitters or using cable to separate the antennas.
Panel Antennas
Panel antennas are basically flat box shaped units,
and radiate primarily from their front “panel” surface.
These antennas produce a relatively wide beam of
radio waves that can be aimed or directed toward
targets and away from things that might cause
problems.
The CTI 5632 8dBi Panel Antenna (pictured) has a 60º
beam angle, meaning that most of the antenna’s
energy is shaped into a 60º wide beam (see the beam pattern near right), and much like a light
fixture with a 60º beam angle, this antenna can be focused at a desired target or group of
targets.
The 5632 Panel Antenna is rated for outdoor use, however the provided plastic mounting
bracket is not, so for outdoor installations, use this antenna with the CTI 5670 Outdoor Use
Panel Antenna Mounting Bracket.
Yagi Antennas
Yagi antennas focus most of their energy forward,
producing a highly directional, narrow beam. The CTI
Yagi antennas are enclosed in a plastic cylinder and
radiate from the flat end of the cylinder. A mounting
bracket is provided at the other end. To focus the Yagi
antenna, simply point it along the axis of the cylinder,
away from the mounting bracket. These antennas are useful for very long
range broadcast to fixed targets.
The CTI 5636 14dBi Yagi Antenna (pictured right) is a very powerful, highly directional antenna,
and is capable of significant range when installed correctly.
Using Directional Antennas
In general, using a directional antenna instead of an omni-direction antenna is a trade; you are
trading the 360º coverage of the omni for the added power and reduced interference of the
directional antenna. If you are broadcasting to spread out and/or moving targets within an
acceptable range, omni-directional antennas are usually best. If your target is stationary or
limited in motion, or if you have multiple targets in a defined area, then a directional antenna can
improve your range and fidelity.
All antennas must be installed correctly to get the best results. Mount the antennas above the
ground and away from hard reflective surfaces (directional antennas should be positioned to
point away from a mounting surface). Locate antennas above/away from radio barriers. Water,
metal, and some kinds of glass are typical radio barriers (people, plants, and animals are mostly
water).
Содержание SHoW DMX Neo 5701
Страница 9: ...9 5792 SHoW DMX Neo Radio Module CE Declaration of Conformity ...
Страница 21: ...21 Antennas ...
Страница 22: ...22 Antenna Accessories ...
Страница 24: ...24 Antenna Connectors These connectors are referred to in the table above ...