Rohde & Schwarz R&S UPP, User Manual

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Instrument Functions
R&S
®
UPP
380 User Manual 1411.1055.32 ─ 10
"Gen Track" For use with the RMS measurement mode only.
Level measurements are performed over at least 1 whole period of
the generator signal. For this purpose the generator frequency is
adapted as necessary to the sampling rate of the analyzer. In the
case of high frequencies, the measurement time is extended to sev-
eral periods in order to increase the measurement accuracy.
This setting is recommended when the excitation (in signal measure-
ments) is a single tone signal.
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.
"Value " Measurement is performed inside a predefined time which has to be
entered in the following parameter field.
In order to avoid errors caused by the termination of measurements,
the chosen measurement time should be an integer multiple of the
period and, due to the noise measurement, should not be too short.
This setting is recommended when the excitation (in signal measure-
ments) consists of noise signals or multitone signals.
"Fix 50 ms" For use with peak measurement modes only
The measurement time is 50 ms.
"Fix 200 ms" For use with peak measurement modes only
The measurement time is 200 ms.
"Fix 1000 ms" For use with peak measurement modes only
The measurement time is 1000 ms.
Remote command:
SENSe[1]:FUNCtion:APERture:MODE
on page 753
SENSe[1]:VOLTage:APERture
on page 754
5.22.2 S/N Sequence in Level Measurements
In order to ensure compatibility with the previous models R&S UPD, R&S UPL and
R&S UPV, the R&S
UPP also has the capability of activating the S/N sequence in
level measurements; as a result, particularly remote control programs can still be used
without any modifications.
Signal-to-Noise Measurements