Chapter 7: Operation
Spectrum Management
Page 7-36
Note
Before attempting to improve the performance of the spectrum management
algorithm by changing the default configuration, consult the Cambium Point-to-Point
distributor or one of the system field support engineers.
Procedure:
•
Review the configuration attributes (
•
Update the attributes as required. At the slave unit, only Page Refresh Period can be
updated.
•
To save changes, click Submit configuration changes.
Table 210 Spectrum Management attributes
Attribute
Meaning
Spectrum Expert
Display Mode
Realtime: When set to Realtime, an additional line appears on the
Receive Spectrum plots showing the most recent measurements of
interference level for every channel
Extended: Extended Display mode is visible only when Extended
Scanning is enabled.
This control is available in the Spectrum Expert page only.
Extended Spectrum
Scanning
Enabled: Enables scanning of entire DSO full band channels.
Disabled: Only the operational subband channels are scanned.
This control is available in the Spectrum Expert page only.
Spectrum
Management Page
Refresh Period
The page refreshes automatically according to the setting entered
here (in seconds).
This control is available in the Spectrum Management page only.
Hopping Margin
Uses this margin when making a channel hop decision. If the
interference level of the target channel is lower than that of the active
channel by at least the Hopping Margin, the link will hop to the target
channel. The default setting is 3 dB in non-radar regions, or 10 dB in
radar regions.
Asymmetric DSO
Only displayed in non-radar regions when DSO is enabled. The
default configuration of symmetric operation constrains the link to
operate symmetrically, using the same transmit and receive channels.
When in symmetric mode the slave unit will always follow the
master. If the master moves to a new channel the slave will hop to
the same channel. When the Point-to-Point link is configured as an
asymmetric link both the master and slave are free to select the best
channel from their own set of local interference metrics.
Spectrum
Management Control
Only displayed in radar regions. The options are DFS and DFS with
DSO.