R&S NRP2 - Page 87

Instrument Functions
R&S
®
NRP2
69User Manual 1173.9157.02 ─ 03
Excluded from Start/End
Set the time interval at the beginning or end of the burst that is excluded from the mea-
surement.
SCPI command:
[SENSe<[1]..4>]:TIMing:EXCLude:STOP on page 281
[SENSe<[1]..4>]:TIMing:EXCLude:STARt on page 281
4.2.1.4 Measuring the average power of TDMA signals
The average power values of timeslots can be measured in the timeslot mode. The time
resolution is determined by the sampling rate of the sensor. This mode is available in the
multipath power sensors (R&S NRP-Z11/21/22/23/24/28/31/32) and in the R&S NRP-
Z8x wideband power sensors.
This measurement mode can be used only if all timeslots of the TDMA signal are equal
in length. A period to be excluded from the measurement can be defined at the beginning
and end of each timeslot by using the "Excluded from Start/End" parameters. The
R&S NRP-Z8x wideband power sensors can additionally define an exclusion interval in
between, i.e. a "Fence". A midamble of the signal can thus be excluded from the mea-
surement.
An external trigger signal or internal signal triggering is required for synchronization (see
chapter 4.2.6, "Trigger settings", on page 85).
Find some background information concerning the timeslot mode in section "Timing dia-
gram of T'Slot Av signals" on page 75).
For the most common mobile radio standards, the required settings can directly be loaded
via the "Recall Standard" dialog box in the "File" menu (see chapter 4.6.4, "Loading set-
tings for mobile radio standards", on page 141). In the "Graph" display mode, the timeslot
parameters can also be set interactively in the Timeslots display mode (chapter 4.5.7,
"Timeslot display mode", on page 129).
► Select "T'slot Av" in the "Mode..." dialog box opened via the "Sensor" menu.
Fig. 4-7: Mode dialog box / T'slot Av
Data acquisition and parameters