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AIROCKS PRO ARX-900 USER GUIDE V1.0
5.4.2.6
PER/RSA Plots
The PER plot (left-hand tab of this window) shows a real-time view of the Packet Error Rate of the
selected Relay unit. The red line indicates the PER while the yellow line indicates the PER threshold used
by the ALO function.
5.4.2.7
RSA (Remote Spectrum Analyzer) Plot
The RSA plot (right-hand tab of this window) shows the result of an RF scan of the local RF spectrum at
the remote Relay location. When the RSA tab is selected the NMS will automatically initiate the RF scan,
which takes about six seconds,
and plot the results on this graph.
The user can also display the
selected Relay’s own uplink and
downlink transmission channels
by clicking the “My TX” button in
the upper right. Clicking the
“Update” button will initiate
another RF spectrum scan.
The RSA function is very helpful
during deployment to keep an
eye on interference and AiRocks
signal levels in the location of the
remote Relay node.
NOTE: Performing the scan
causes the Relay unit to temporarily stop receiving the RF signal from its uplink source, which in turn
causes any downstream nodes to lose their uplink signal for the duration of the scan. RSA should NOT be
performed during the event.