Chapter 2
GSM Call Mode Operation
GSM tests
4460 GSM System Option and 4468 EDGE System Option
Version 12.20
91
Marker tabs at burst zoom
level
There are two different menus for the burst zoom function: the zoom display of
the power ramping phase and the zoom display of the constant power phase of
the burst. A push on one of the two marker tabs selects the menu you want to
work with.
Statistical test evaluation
On quite a number of test menus, the 4400 provides you with statistic evalua-
tions of the measured values. Those statistic values are obtained by running a
test a specific number of times. In the figure above, this number is given by the
single value above the bar displays (113 in this example).
The following information can be found in the results table:
This menu offers you specific display functions to evaluate
both the rising and the falling edge of the burst in great detail.
Here you will find all functionalities to check all details of that
part of the burst that should have a constant power level.
Curr.
Current measurement value. The last measurement obtained
without any statistical evaluation.
Min.
The absolut minimum of all measurements obtained.
Avg.
The average value calculated using all measurement values
since the last start of the measurement.
Max.
The absolut maximum of all measurements obtained.
NOTE
The bar display is described in section
“Display markers” on page 87
.
NOTE
To (re-)initialize a statistic evaluation, simply push the
Reset
softkey.
