User's Manual

Chapter 5 - Configuration Via Web Interface Device Status
Alvarion BreezeNET B130/B300 GigE 81 Technical User Manual
"Start Test"/"Stop Test" buttons at the bottom of the page start/stop the
alignment test.
"Back" button returns to the "Device Status" page.
Once the test is started antenna alignment can be monitored using graphical and
text indicators. Indicators for both local and remote devices are displayed together
on the same page that allows viewing the alignment process for both sides of the
link.
Each side of the link (local and remote) has two similar test indicator sets
corresponding to two antenna polarizations (rx chains) of the device (one for
Vertical polarization and another for Horizontal). This allows controlling the
alignment process for each antenna polarizations for local and remote devices
simultaneously.
Text indicators are the following:
 Error Vector Magnitude (EVM) - indicator of the measured input signal quality.
It should be as high as possible. The recommended level is not less than 21.
 Chain 0 Signal Level - input signal level indicator of antenna number 0
(vertical polarization).
 Chain 1 Signal Level - input signal level indicator of antenna number 1
(horizontal polarization).
 Retries - percentage of transmit packet retries.
Graphical indicator: