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Green Active The channel is currently in use hosting the Point-to-Point
wireless link
Orange Interference The channel has interference above the interference threshold
Blue Available The channel has an interference level below the interference
threshold and is considered by the Spectrum Management
algorithm suitable for hosting the Point-to-Point link
Grey Barred The system administrator has barred this channel from use.
Because the low signal levels encountered when a unit is
powered up in a laboratory environment prior to installation
(which makes the grey of the channel bar difficult to see). An
additional red ‘lock’ symbol is used to indicate that a channel is
barred.
Red Radar detected Detected Impulsive Radar Interference has been detected on
this channel.
Region Bar Region Bar This channel has been barred from use by the local region
regulator
Table 15 Spectrum Management Change State Key With Operational Restrictions