4.3.3 Collocated RadiosWhen the radio network’s master device is located too close to another radio device, communications between all devicesis interrupted. For this reason, always assign a unique Network ID to your wireless networks. The Network ID (NID) is aunique identifier you assign to each wireless network to minimizes the chances of two collocated networks interfering witheach other. Assigning different NIDs to different networks improves collocation performance in dense installations.4.3.4 Be Aware of Seasonal ChangesWhen conducting the initial Site Survey, the fewest possible missed packets for a given link is better. However, seasonalchanges may affect the signal strength and the total signal quality. Radios installed outside with 50% missed packets inthe winter months may have 80% or more missed packets in the summer when leaves and trees interfere with radioreception.Figure 1. A good signal in winter doesn't always mean you will get the same signal strength the rest of the year.Figure 2. During spring and summer, leaves may block more of the radio signal.4.4 Basic Remote Antenna InstallationA remote antenna system is any antenna system where the antenna is not connected directly to the radio; coaxial cableconnects the antenna to the radio.When installing a remote antenna system, always include a lightning arrestor or coaxial surge suppressor in the system.Remote antenna systems installed without surge protection invalidate the warranty of the radio devices.Surge suppressors should be properly grounded and mounted at ground level near where the cabling enters a building.Install the surge suppressor indoors or inside a weatherproof enclosure to minimize corrosion or component deterioration.For best results, mount the surge suppressor as close to the ground as possible to minimize the length of the groundconnection and use a single-point ground system to avoid creating ground loops.For more detailed information about how antennas work and how to install them, refer to Antenna Basics (p/n 132113)(also included as a chapter within the product manual).Sure Cross® Performance DX80 Wireless I/O Networkswww.bannerengineering.com - Tel: 763.544.3164 23
