27
Performing a Wireless DMX Site Survey
In Addition to SHoW DMX and Wi-Fi, there are other devices that transmit in the 2.4GHz
spectrum that may be present in any given venue. The Zigbee and Bluetooth protocols as well
as microwave ovens and some cordless phones all broadcast in this range.
A spectrum analyzer is a useful tool in identifying all of the radio frequency (RF) in a certain
range. Spectrum analyzers vary from very sophisticated and precise lab equipment to simple
and inexpensive PC applications, and operation varies by brand and feature set. The images
below are from a Wi-Spy Chanalizer USB spectrum analyzer. The Wi-Spy Chanalizer is a
simple and affordable tool for this purpose. More detail is available at:
The purpose of performing a site survey is to locate and identify other devices in the same
frequency range as the SHoW DMX System. Once this information is gathered, it can be
evaluated to determine which devices can and should be avoided.
The spectrum analyzer image above shows a Wi-Fi access point set to Wi-Fi channel 11.
Interference with or from this Wi-Fi broadcast could be avoided by setting the SHoW DMX Neo
system to Low (Wi-Fi 1-6) Limited Bandwidth broadcast mode (see
Limited Bandwidth
Frequency Hopping
below).
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 ...