
RF Products Crestron Best Practices
Sample List of Network Products
NETWORK TYPE GATEWAYS
Wi-Fi 802.11b/g
CEN-WAP-ABG-1G (TPMC-4X)*
CEN-WAP-ABG-1G (TPMC-4XG)
Wi-Fi 802.11a/b/g CEN-WAP-ABG-1G (TPMC-3X, TPMC-8X)
802.15.4
C2N-MNETGW (Lighting)
C2N-HPRFGW (TPS-6X)
CEN-RFGW-EX (MLX-2)
* Although the CEN-WAP-ABG-1G supports 802.11a, the TPMC-4X – which connects to the access
point – supports 802.11b only. The network must operate using a protocol that all devices can support;
therefore, the network is limited to 802.11b.
Once you have the list of networks, you can conduct a site survey.
Conducting a Site Survey
A wireless site survey consists of detecting the level and distribution of outside
interference. A site survey often provides early detection of any issues that might be
encountered in the installation and, to a large extent, dictates which wireless
channels can be used in the installation. The goal of a site survey is to discover the
worst-case interference scenario.
Site Survey Tools
The following tools (provided by others) are recommended to perform a site survey:
• Wi-Spy/Chanalyzer (
http://www.metageek.net)
• NetStumber (
http://www.netstumbler.com)
• AirMagnet (
http://www.airmagnet.com)
The following sections provide an overview of each tool.
Wi-Spy/Chanalyzer
Wi-Spy is an RF spectrum analyzer built into a small USB dongle that plugs into a
PC. It detects the amount of interference across the 2.4 GHz band. Two versions are
available: Wi-Spy and Wi-Spy 2.4x. The 2.4x version provides better resolution of
signals for improved detection.
Wi-Spy Wi-Spy 2.4x
Wi-Spy devices use the Chanalyzer software to report RF signals. The software can
detect other wireless networks as well as 2.4 GHz cordless phones, baby monitors,
and microwaves.
6 • Best Practices – RF Products Reference Guide – DOC. 6689C
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