Rohde & Schwarz R&S UPP, Руководство пользователя

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Instrument Functions
R&S
®
UPP
343 User Manual 1411.1055.32 ─ 10
The "Ref Channel" is the reference channel for measurements between two channels.
They include the following measurements:
●
Phase and group-delay measurement (the frequency measurement result is shown
on the reference channel)
●
Crosstalk measurements (ratio of two level measured values)
●
Frequency tracking of selective RMS measurement
The reference channel cannot be switched off. If a reference channel that is not yet
active is selected, then this channel is automatically switched on. Conversely, the
attempt to switch off a channel that has been selected as the reference channel is
rejected with a corresponding error message.
"Ch 1 / Ch 2 /
Ch 3 ..." Selection of the reference channel from the parameter list.
Remote command:
SENSe[1]:REFerence:CHANnel
on page 723
Trigger Chan
Indicates the trigger channel; only appears on multichannel analyzers.
The "Trigger Chan" determines on which channel the trigger condition is tested.
The following are affected:
●
The "Start Condition"
●
The trigger source of the waveform monitors
If a channel that is not yet active is selected as the trigger channel, this channel is
switched on automatically. If the measurement channel that is selected as the trigger
channel is deactivated, then the trigger channel is automatically switched over to the
reference channel.
Note: The parameter field for the trigger channel that is visible on the Waveform Moni-
tor is identical to the field in the "Start Cond " area of the Analyzer Config panel.
"Off" No trigger channel is defined; the following restrictions apply:
The waveform monitor operates in untriggered mode; "Trigger
Source" is unavailable.
Only "Auto" or "Time Tick" can be selected as "Start Cond".
"Ch x" Selection of the trigger channel from the parameter list.
Setting Start Condition