Net research NetProbe 2000 User Manual page 121

Tip:
To verify that everything
is setup properly after
starting BERT, click on
the LGC button to force
and detect a single bit
error.
Optionally, a constant bit error rate can be injected using the RATE menu.
Select a rate from the pull down menu and press the corresponding
green button to begin the error RATE injection.
121
Tip:
Click in the Errors or Rate
columns to display a histogram
for the corresponding metric.
Click on the thin gray bar to
hide it.
Green arrows at the bottom
can be used to display
additional G.821 metrics and
Tx/RX frequency.