Cambium Networks PTP 450 Series, Руководство по настройке

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Chapter 2: Tools Using the Link Status tool
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2-364
Downlink Statistics –
Signal to Noise Ratio This field represents the signal to noise ratio for the downlink (displayed
when parameter Signal to Noise Ratio Calculation during Link Test is
enabled) expressed for both the horizontal and vertical channels.
Downlink Statistics –
Average EVM (dB) This field displays the average EVM statistics that measures RF signal
quality.
Downlink Statistics –
Link Test Efficiency This field displays the efficiency of the radio link, expressed as a percentage,
for the radio downlink.
Downlink Statistics –
SU-MIMO Rate The SU-MIMO rate applies to all AP platforms.
For 450m, this field indicates the rate being used for symbols where this
particular VC is not being MU-MIMO grouped with other SMs.
For 450 and 450i platforms, there is no grouping and this field indicates the
modulation rate for all symbols.
Downlink Statistics –
MU-MIMO Rate This field indicates the modulation rate used for symbols where the low or
medium priority data channels are MU-MIMO scheduled by grouping it in the
same slot with other low or Medium priority data channels from other SM's.
Uplink Statistics -
Power Level: Signal
Strength Ratio This field represents the combined received power level at the AP/BHM as
well as the ratio of horizontal path signal strength to vertical path signal
strength.
Uplink Statistics –
Fragments
Modulation This field represents the percentage of fragments received at each
modulation state, per path (polarization).
Uplink Statistics –
Signal to Noise Ratio This field represents the signal to noise ratio for the uplink (displayed when
parameter Signal to Noise Ratio Calculation during Link Test is enabled)
expressed for both the horizontal and vertical channels.
Uplink Statistics – Link
Test Efficiency This field displays the efficiency of the radio link, expressed as a percentage,
for the radio uplink.
Uplink Statistics – SU-
MIMO Rate The SU-MIMO rate applies to all AP platforms.
For 450m, this field indicates the rate being used for symbols where a VC is
not being MU-MIMO grouped with other SMs.
For 450 and 450i platforms, there is no grouping and this field indicates the
modulation rate for all symbols.
Uplink Statistics – MU-
MIMO Rate This field indicates the modulation rate used for symbols where the low or
medium priority data channels are MU-MIMO scheduled by grouping it in the
same slot with other high or ultra high priority data channels from other
SM's.