Cambium Networks PTP 450 Series, Configuration Manual

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Chapter 2: Tools Using the Link Status tool
Page
2-368
Signal to Noise Ratio This field lists the current signal-to-noise level, an indication of the
separation of the received power level vs. noise floor for uplink.
Average EVM This field displays the average EVM statistics that measures RF signal
quality.
Latest Remote Link
Test Efficiency
Percentage This field is not applicable.
Local Stats
Session Status This field displays the current state, Virtual channel, channel rate adaptation
and MIMO-A/MIMO-B/SISO status of SM.
Spatial Frequency This filed displays the spatial frequency value of the VC or SM.
Run Link Test
See Exploratory Test section of Performing Extrapolated Link Test on page
2-343
Link Quality Indicator
LQI This field displays the quality of the link used for data communication
between AP and SM.
This value is derived by calculating:
Downlink LQI value * Uplink LQI value * Re-Registration Quality Index value
Downlink LQI This field displays the downlink quality of the link. It is the ratio of Actual
Average Modulation Rate of the data packets and the expected modulation
rate.
Downlink Actual
Average Modulation
Rate This field displays the average value of the actual Downlink modulation rate.
Downlink Expected
Modulation Rate This field displays the expected Downlink modulation rate.
Beacon Quality Index This field displays the Beacon Quality Index. It is calculated based on the
receive beacon percentage.
Uplink LQI This field displays the uplink quality of the link. It is the ratio of Actual
Average Modulation Rate of the data packets and the expected modulation
rate.
Uplink Actual Average
Modulation Rate This field displays the average value of the actual uplink modulation rate.
Uplink Expected
Modulation Rate This field displays the expected Uplink modulation rate.