CAMBIUM NETWORKS
026v003
94
AVOIDANCE OF WEATHER RADARS
To comply with FCC rules (KDB 443999: Interim Plans to Approve UNII Devices Operating in the
5470 - 5725 MHz Band with Radar Detection and DFS Capabilities), units which are installed within
35 km (22 miles) of a Terminal Doppler Weather Radar (TDWR) system (or have a line of sight
propagation path to such a system) must be configured to avoid any frequency 30 MHz or
–30 MHz of the frequency of the TDWR device.
This requirement applies even if the master is
outside the 35 km (22 miles) radius but communicates with outdoor clients which may be within
the 35 km (22 miles) radius of the TDWRs.
The requirement for ensuring 30 MHz frequency separation is based on the best information
available to date. If interference is not eliminated, a distance limitation based on line-of-sight from
TDWR will need to be used. In addition, devices with bandwidths greater than 20 MHz may require
greater frequency separation.
When planning a link in the USA, visit
http://spectrumbridge.com/udia/home.aspx
, enter the
location of the planned link and search for TDWR radars. If a TDWR system is located within 35 km
(22 miles) or has line of sight propagation to the PMP device, perform the following tasks:
http://spectrumbridge.com/udia/home.aspx
Make a list of channel center frequencies that must be barred, that is, those falling 30
MHz or –30 MHz of the frequency of the TDWR radars.
In ETSI regions, the band 5600 MHz to 5650 MHz is reserved for the use of weather radars.
Summary of Contents for ePMP
Page 198: ...CAMBIUM NETWORKS 026v003 198 Figure 61 SM Radio page Standard WiFi mode ...
Page 230: ...CAMBIUM NETWORKS 026v003 230 Figure 66 SM Network page Router mode ...
Page 466: ...CAMBIUM NETWORKS 026v003 466 ...
Page 467: ...CAMBIUM NETWORKS 026v003 467 ...
Page 468: ...CAMBIUM NETWORKS 026v003 468 Figure 87 FCC and IC certifications on 2 4 GHz product labels ...