User's Manual Part 2

RADWIN 1000/2000/5000 User ManualVersion 2.6.50p1 F-1
Appendix F
FCC/IC DFS Installation
Procedure
FCC/IC 5.4/5.3 GHz Links: Background
The FCC/IC regulation for 5.4/5.3 GHz allows unlicensed wireless data
equipment, provided that it does not interrupt radar services. If radar activ-
ity is detected, the equipment must automatically change frequency chan-
nel. This feature is termed Dynamic Frequency Selection (DFS). According
to the standard, a channel with active radar is prohibited from use for 30
minutes. Before using a channel for transmission, the radio equipment must
probe it for radar signals for a period of 60 seconds.
RADWIN radio products support DFS as well as ACS.
An immediate consequence of the FCC/IC regulation for 5.4/5.3 GHz is that
the standard method of link installation using a single default fixed installa-
tion channel, cannot be used.
Instead of the installation procedure of Chapter 4, a link activation
method is used. The ODUs do not transmit until they are both configured
and in place. An activation button may be found by navigating to
Site:Location|Air Interface.
Note
The FCC/IC regulations for 5.4 GHz band requires the frequency range
5600 – 5650 MHz to be banned from use. The FCC regulation for 5.4 GHz
band requires that within 35 km radius from any (Terminal Doppler
Weather Radars) TDWR location the frequency range 5570 – 5680 MHz
shall be banned from use.
Follow the instructions in the last section of this chapter.