R&S NRP Measuring av. burst power (Burst Av mode)
1144.1400.12 2.21 E-2
Measuring av. burst power (Burst Av mode)
An R&S NRP-Z1x or R&S NRP-Z2x diode sensor is required for this measurement. To make measure-
ments possible, a pulsed RF signal with a pulse repetition frequency not exceeding 10 kHz should be
available.
The R&S NRP-Z1x and R&S NRP-Z2x sensors have two measurement modes for RF burst power:
Burst Av and Timeslot.
An external trigger is not required in the Burst Av mode – the sensor automatically determines the trig-
ger point from the measured signal. It is also not necessary to specify the width of the burst as the sen-
sor determines the end of the burst automatically.
1 Setting the burst mode.
¾ Connect an R&S NRP-Z1x or R&S NRP-Z2x sensor
to connector A on the R&S NRP and apply a pulsed
signal with a level between –10 dBm and +10 dBm.
({PRE}SET)
* *
¾ Press the ({PRE}SET) key twice.
A measurement window is now available.
¾ Change to the Sensor menu and select Mode…. When
the Mode dialog box opens, select Scope.
¾ Once in the Scope mode (see section ) Scope),
make sure that the sensor detects a signal and relia-
bly triggers.
¾ Change back to the Sensor menu and select Mode….
When the Mode dialog box opens, select Burst.
The burst mode parameters are displayed at the bottom
of the dialog box.
To exclude the pulse build-up and decay phases from the
measurement, you can set the
Excluded from Start and
Excluded from End parameters accordingly.
The parameter
Dropout helps to ensure the reliable detec-
tion of the end of modulated-signal bursts (e.g. NADC).
See Chapter 4, Measuring the average burst power, for a
detailed description.
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