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8 Web Page Reference
Note: These plots are for 15MHz operation; 5/10MHz operation is similar - the width of the
vertical green bar represents the channel width
Figure 58 shows an example Spectrum Management webpage as seen from the master.
Figure 59 shows an example Spectrum Management webpage as seen from the slave. It
should be noted that the key configuration attributes are not available on the slave web page.
8.3.7.5
Spectrum Management Configuration
The following section describes the user modifiable configuration accessible from the
Spectrum Management webpage. It is recommended that the default values are maintained.
If the user believes that the performance of the Spectrum Management algorithm requires
some modifications this should only be done after consulting your Motorola Point-to-Point
distributor or one of the system field support engineers.
Page Refresh Period: The page refreshes automatically according to the setting entered
here (in seconds).
Hopping Margin: Spectrum Management uses this margin when making a channel hop
decision. The target channel has to have an interference level 3 dB (default) better than the
current active channel.
Hopping Period (not configurable): The Spectrum Management algorithm evaluates the
metrics every 'Hopping Period' seconds (180 seconds by default) looking for a channel with
lower levels of interference. If a better channel is located, Spectrum Management performs
an automated channel hop. If SNMP or SMTP alerts are enabled an SNMP TRAP or an email
alert is sent warning the system administrator of the channel change.
Hopping Counter: is used to record the number of channel hops. The number in the "(+)"
brackets indicates the number of channel changes since the last screen refresh.
Interference Threshold: Spectrum Management uses the interference threshold to perform
instantaneous channel hops. If the measured interference on a channel exceeds the specified
threshold, then iDFS will instruct the wireless to immediately move to a better channel. If a
better channel cannot be found the 500 Series Bridge will continue to use the current active
channel. (Default –85 dBm)
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