![background image](http://html.mh-extra.com/html/rands/upv/upv_getting-started_3262652141.webp)
Manual Operation
R&S
®
UPV
125
Getting Started 1146.2078.62 ─ 09
●
Operation at the analog and digital interfaces is always the same.
●
The analog preprocessing makes it possible to achieve a higher dynamic range
than that provided by the internally used 24-bit converter.
●
The R&S
UPV can also perform the complex measurement functions simultane-
ously on both channels; this alone halves the time required for stereo measure-
ments.
●
Several measurement functions, e.g. level measurement, FFT analysis, waveform
analysis, etc., are calculated simultaneously on separate signal processors and
can therefore be displayed at the same time without a delay.
●
The digital measurement routines can continuously adapt their speed to the current
input frequency and thus achieve high measurement speeds.
●
Since the filters are also digital, an almost infinite number of filters is available and
can also be used for measurements at analog interfaces.
With the R&S
UPV-B2 (digital audio interfaces) option (or R&S
UPV-B20), digital audio
data streams can also be measured at AES/EBU or SPDIF interfaces.
The R&S
UPV-B4x options, which can be installed in the expansion slots at the rear of
the instrument, provide further interfaces for analyzing signals in other formats.
4.2.3.1
Function Blocks and Measurement Levels
The analyzer component of R&S
UPV contains a series of measurement options that
are organized in various measurement levels. The measurement results of these levels
can also be displayed simultaneously.
The unfiltered input signal is analyzed at the
input monitor level
. The peak level at
the input connectors is analyzed here.
The pre-filter, which can be looped into the signal path before all other analyses, is
located in front of the
level monitor
. Here you can analyze the RMS value, the peak
value or the DC voltage component of the signal to be tested.
Following any additional filtering using up to 3 filters, detailed analysis is initiated in the
function level
. All the usual analysis tools for measuring linear and non-linear distor-
tion, interference, etc., can be found here. The analysis in the time domain (waveform)
as well as the FFT analysis with extreme dynamic response and frequency resolution
take place here. Moreover, it is possible to record input signals to the hard disk in order
to analyze them at some point later.
In the
Freq/phase level
, the measured values for
frequency
and
phase
or
group
delay
can be displayed in a different measurement window parallel to the structure
described above.
The
audio monitoring output
(integrated loudspeaker or headphones connection)
can be activated on each of the three levels and thus permits audio monitoring of ana-
log or digital input signals both directly at the input and at the different analysis levels.
The generator signal can also be switched to the loudspeaker / headphones.
With the R&S
UPV-U2 option, the signals of the audio monitoring output can also be
output at the BNC sockets at the rear of the instrument.
Functional Division of the Audio Analyzer