User's Manual

13
radio link. If the level of SNR is lower than expected the signal level and noise
level indicators may help you investigate the cause:
o A low signal level indicates that the strength of the radio signal is fairly
low: i.e. your Client Manager station is almost out-of-range of its link test
partner.
o A high noise level indicates a source of radio interference in the radio path
between the two link test partners.
Comparing the values for your station and the link test partner will help you to
identify the location where the interference occurs, and investigate whether any
actions to eliminate or remedy the source interference resulted in a better
performance.
NOTE: If your Link Test partner station has an amplifier, then your signal into it
will be much lower than its signal into your unit.
§ Throughput Efficiency, by comparing:
o Total number of Sent Messages to Received Messages, and
calculating the number of messages that were lost.
o Number of messages transmitted at the supported data rates.
The results are displayed for both Link Test Partners, which can be identified by their
Station Names and/or MAC Addresses.
To analyze a specific situation in more detail, you can:
§ Click the Freeze button to temporarily stop the dynamic update of the diagnostic
counters.
§ Click the Reset button to reset the diagnostic counters to zero.
§ Click the Advice button to assess possible impact on your network performance,
or explore suggestions to improve communications quality.
Test History Tab
You can use Test History to display link test results as a line-chart. You can change the
display to include the diagnostic parameters of your choice, and a user-defined time
window. You can set the time window to display the information of the last minute, last
hour or last 24 hours. Test History allows you to analyze what was causing the
performance problem without having to watch the dynamic indicators continuously.
Log Settings Tab
You can record the link test measurements to a log file, and use this log file to more fully
analyze the link quality. The measurement data can be logged automatically at regular
intervals or manually upon user-command.