Rohde & Schwarz R&S UPP, Руководство пользователя

Страница: 353 / 938

Instrument Functions
R&S
®
UPP
337 User Manual 1411.1055.32 ─ 10
5.15 Starting Measurements
Measurements are started - and stopped - in manual mode using the keys CTRL+F5
(Start), CTRL+F6 (Single) or CTRL+F7 (Stop/Cont) on the external keypad, or by using
the buttons "Start ", "Single " and "Stop/Cont " on the toolbar.
The effect of these keys or buttons depends on whether or not the sweep system is
active:
●
The measurement system can only be directly controlled using the keys if the
sweep system is inactive.
●
If, however, the sweep system is active, the measurement system is controlled by
the sweep system and the keys or buttons are used to control the sweep system.
5.15.1 Overview of the Measurement System
The following information refers to a "deactivated sweep system", i.e. a sweep is not
activated in either the generator or the analyzer.
A measurement, in a narrower sense, is the single or continuous "recording of mea-
sured values" for all activated measurement types. It can take the form of a single
measured value or a data set (sample in the time domain, spectral lines in the fre-
quency domain).
The single recording of measured values is referred to as a "single measurement" (see
Chapter 5.15.3.2, "Single measurement" , on page 340), and continuous recording as
"continuous measurement " (see Chapter 5.15.3.1, "Continuous measurement" ,
on page 339).
The measurement system is controlled
●
explicitly via the keys and buttons described in the introduction
●
implicitly by means of break events . These are events (user entries) which invalid-
ate the measurement currently being performed, i.e. changes in the generator,
analyzer or filter bank. Following a break event, the current measurement is restar-
ted automatically. This ensures that the displayed measurement data is not corrup-
ted by internal switching operations. Since it takes a few milliseconds to terminate
and restart a measurement in progress, settings should not be entered in remote-
control mode unless measurement has stopped.
5.15.2 Activating and Deactivating Measurement Types
With the R&S UPP it is possible to record up to 32 different measured values simulta-
neously and display them numerically and/or graphically.
These measured values are
●
selected measurement functions of all channels,
●
level monitor (RMS or DC downstream of the prefilter) of all channels,
●
input monitor (peak measurement upstream of the prefilter) of all channels,
●
frequency on channel 1, frequency, phase or group delay on all channels.
Starting Measurements