Rohde & Schwarz R&S NRP - Measuring Average Power in Defined Time Interval

Measuring average power in defined time interval R&S NRP
1144.1400.12 2.22 E-2
Measuring average power in defined time interval
(Timeslot mode)
In the Timeslot mode, average power can be measured in a defined time interval of any complex signal.
An external trigger signal is normally used since it always ensures reliable triggering and the measure-
ment of very low power. Thus, for example, the power in one or more timeslots of TDMA signals can be
measured simultaneously.
1 Setting the Timeslot mode.
¾ Connect a power sensor of the R&S NRP-Z1x or
R&S NRP-Z2x family to connector A of the R&S NRP
and apply a signal having TDMA time structure within
the level range –10 dBm to +10 dBm.
¾ Once in the Scope mode (see section ) Scope),
make sure that the sensor detects a signal and relia-
bly triggers.
¾ Change to the Sensor menu and select Mode…. When
the Mode dialog box opens, select Timeslot.
The associated parameters will appear in the lower part
of the dialog box.
¾ Under
Nominal Width, set the nominal value of the
timeslot width.
¾ Under
Excluded from Start and Excluded from End, define
the portions to be excluded from the measurement.
¾ Use
No. of Timeslots to set the number of timeslots in a
TDMA frame.
9 Tip
Excluded from Start and Excluded from End can also be set
interactively in the Scope display on the T'slots page.
For a detailed description, see Chapter 4, "Measuring the
power of TDMA signals".