Chapter 7: Operation
Spectrum Management
Page 7-42
Figure 228 Spectrum Expert page with radar avoidance – Extended Display
When operating with RTTT (Road transport and Traffic Telematics) Avoidance enabled or other
regulatory restrictions on channel usage, all channels marked with a “no entry” symbol with
their associated statistics colored black are the prohibited channels. These channels are never
used to host the wireless link, but CAC measurements are still taken so that adjacent channel
biases can be calculated correctly and so the user can see if other equipment is in use.
Table 213 Channel states in the Spectrum Expert plot (radar avoidance)
Color
State and
color
Meaning
Green
Active
This channel is currently in use hosting the Point-to-Point wireless
link.
Orange
Interference
This channel has interference above the interference threshold
Blue
Available
This 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