Adaptrum ACRS 2.0 Quick Start Manual page 14

Adaptrum ACRS2.0 Quick Start Guide (International)
Change to the Diagnostics tab to run a spectrum scan on all channels.
Measure All Channel Quality
Sort results by Channel Quality column ( )
green = good, yellow = marginal, orange = avoid (not recommended), red = bad (do not use)
Note: If nearly all channels show good (green) quality, ensure that the antenna cable is properly connected.
Note the Channel_Id with highest quality (lowest Channel Quality number); in this example, channel 21
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