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This will reboot the unit, taking up to 120 seconds, during this time you will not be able to
communicate with the unit.
If you cannot communicate with the unit after 120 seconds this could indicate a problem with
the memory update process. Under these circumstances the user should enter "Recovery
Mode", see section 9 " Recovery Mode ".
After the reboot the user should check that the required software image is loaded and
running.
8.3.7
Spectrum Management
Spectrum Management Selection is the Canopy 150/300 Mb BH wireless feature that
monitors the available wireless spectrum and directs both ends of the wireless link to operate
on a channel with the minimum level of co-channel and adjacent channel interference.
8.3.7.1 Wireless Channels
The Canopy 150/300 Mb BH wireless operates using a set of predefined overlapping
channels. There are 9 or 10 channels predefined channels, depending on the raster mode
selected, starting at 5742 MHz and ending at 5832 MHz. Each channel occupies 30 MHz of
wireless spectrum and is offset in center frequency from its neighbouring channel by 10 MHz.
It is important to note that adjacent channels on the Spectrum management display have a 10
MHz overlap to the adjacent channel.
The default channelization can be modified by varying the lower center frequency attribute in
the installation wizard - see section 8.3.4.3 "Wireless Configuration" - Lower Center
Frequency.
8.3.7.2 Spectrum Management Measurements
The Canopy 150/300 Mb BH wireless units perform two mean signal measurements per TDD
cycle, per channel. This mean measurement represents the mean received signal power for
the 40 µS measurement period.
The Spectrum Management algorithm collects measurements equally from all channels. This
process is called the Channel Availability Check (hereafter referred to by the acronym CAC).
The CAC uses a round-robin channel select process to collect an equal amount of
measurements from each channel. It is important to note that the CAC measurement process
Issue 1.1 April 2006
Figure 52: Reboot Confirmation Pop Up
Page 88
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