Radar avoidance and bandwidth operation
Chapter 2 Planning considerations
phn-0896_009v003
2-4
UNDER DEVELOPMENT
Feb 2010
Radar avoidance and bandwidth operation
Channel barring
Where regulatory restrictions apply to certain channels these channels are barred.
RTTT avoidance may be necessary in all channel bandwidths. The number of channels
barred is dependant on the channel raster selected. For example see the effect of the
UK RTTT channel restrictions in the 30 MHz bandwidth (
), where blocks in
red indicate channels that are barred. Barred channels are indicated by a “No Entry”
symbol displayed on the “Spectrum Management” web page, see
management control with radar avoidance
on page
Figure 2-1
RTTT channel avoidance example (5.8 GHz UK)
NOTE
Radar avoidance requirements in the 5.4GHz band in the EU is detailed in
specification EN 301-893 version V1.4.1 (from July 2010, this becomes
V1.5.1) plus additional requirements shown in the OJ of the EC and in the US
in the specification FCC part 15.407. Radar avoidance at 5.8 GHz is
applicable to EU operation and the requirements are currently as defined in
EN 302 502.