Rohde & Schwarz R&S UPP, User Manual

Page: 379 / 938

Instrument Functions
R&S
®
UPP
363 User Manual 1411.1055.32 ─ 10
"Gen Track" The RMS measurement is performed over (at least) 1 whole period of
the generator signal; to allow this, the generator frequency is adapted
to the sampling rate of the analyzer, if necessary. In the case of high
frequencies, the measurement time is extended to several periods in
order to increase the measurement accuracy.
Recommended for all AC measurements when using the R&S UPP
Universal Generator; also particularly suitable for measuring severely
noise-corrupted or distorted signals, and for fast sweeps.
Note: If the "Mod Dist" signal is used as the generator signal, the
measurement time is based on the (usually dominant) "Lower Fre-
quency".
Note: If "Stereo Sine" is used as the generator signal, measurement
channel 1 tracks generator channel 1, and measurement channel 2
tracks generator channel 2, in two-channel analyzer instruments.
In the case of multichannel analyzers, measurement channel 1 tracks
generator channel 1 and measurement channels 2 ... 8 track genera-
tor channel 2.
Note: If "Arbitrary" is used as the generator signal, the measurement
time is synchronized to the number of samples in the loaded file. As a
result, measurement is always performed over a complete period of
the (repeatedly output) ARB signal.
Remote command:
SENSe[1]:FUNCtion:APERture:MODE
on page 753
SENSe[1]:VOLTage:APERture
on page 754
5.21.3 RMS Measurement, Selective
Selective RMS measurement with narrow band bandpass filter or narrow band band-
stop filter, either taking account of or disregarding a superimposed DC voltage.
In analog operation, depending on the coupling selected, a superimposed DC compo-
nent is measured (DC coupling), or it is suppressed (AC coupling). In digital operation,
Level Measurements