User Manual

EasyST Hardware Installation User Guide
Page 35 Commercial in Confidence UWB-D00128 Rev K
Figure16‐PositioningEasyST
The signal LED indicates the strength of the signal by measuring the signal-to-noise ratio (SNR).
SNR indicates received signal strength relative to background noise. The ratio is usually
measured in decibels (dB). Thus, the higher the SNR ratio, the better the communication.
The table below describes the EasyST signal LEDs with regards to SNR values.
Table12‐SNRvalues
LED Color Status Average SNR (dBm)
All LEDs are off SNR < 5
First left-most LED is on 5 <= Avg. SNR < 9
Two left-most LEDs are on 9 <= Avg. SNR < 12
Three left-most LEDs are on 12 <= Avg. SNR < 16
Four left-most LEDs are on 16 <= Avg. SNR < 22
signal Green
Five LEDs are on
22 <= Avg. SNR