Rohde & Schwarz R&S RTB2000, Руководство пользователя, Страница: 69 / 609

Waveform setup
R&S
®
RTB2000
69 User Manual 1333.1611.02 ─ 11
"Enve-
lope
+ PD"
Each acquisition is done in peak detect mode, and the most extreme
values of all consecutive acquisitions build the envelope. This method
is more precise than "Envelope".
Remote command:
ACQuire:TYPE
on page 326
CHANnel<m>:ARIThmetics
on page 327
CHANnel<m>:TYPE
on page 326
ACQuire:PEAKdetect
on page 327
ACQuire:HRESolution
on page 327
No. of Averages
Defines the number of waveforms used to calculate the average waveform. The higher
the number, the better the noise is reduced.
To restart the average calculation, press the [Clear Screen] key.
Remote command:
ACQuire:AVERage:COUNt
on page 328
ACQuire:AVERage:RESet
on page 328
Nx Single
Sets the number of waveforms that are acquired with a [Single] acquisition.
The setting is available if the history option is installed.
Remote command:
ACQuire:NSINgle:COUNt
on page 313
Roll
Enables the automatic roll mode. The instrument switches to roll mode if the Time
Scale is equal or slower than Start Roll Time .
The roll mode displays the untriggered, continuous signal, and moves the captured
input data on the display from the left to the right. The instrument shows the waveform
immediately, without waiting for the complete acquisition of the waveform record. The
record length is set automatically ("Auto" mode). Some math functions are non-calcula-
ble if roll mode is active.
You can use the horizontal and vertical zoom in roll mode if the acquisition is stopped.
Remote command:
TIMebase:ROLL:AUTomatic
on page 328
Start Roll Time
Sets the limit timebase for the roll mode. The instrument switches automatically to roll
mode if:
●
the Time Scale exceeds the value given here.
●
the roll mode is activated ( Roll ).
Remote command:
TIMebase:ROLL:MTIMe
on page 329
Acquisition setup