User Manual

Waveform Setup
R&S
®
Scope Rider RTH
45User Manual 1326.1578.02 ─ 08
"High Resolu-
tion"
The average of n captured sample points is recorded as one wave-
form point. Averaging reduces the noise, the result is a more precise
waveform with higher vertical resolution.
"Average"
The average is calculated from the data of the current acquisition and
a number of acquisitions before. The method reduces random noise.
It requires a stable, triggered and periodic signal. The number of
acquisitions for average calculation is defined with Number of Aver-
ages.
"Envelope"
The minimum and maximum values in an sample interval over a num-
ber of acquisitions are saved. The most extreme values of all acquisi-
tions build the envelope. The resulting diagram shows two envelope
waveforms: the minimums (floor) and maximums (roof) representing
the borders in which the signal occurs.
Remote command:
ACQuire:MODE on page 259
Number of Averages
Sets the number of waveforms used to calculate the average waveform.
Remote command:
ACQuire:AVERage:COUNt on page 259
Reset Waveform
Restarts the envelope and average calculation.
Remote command:
ACQuire:ARESet:IMMediate on page 259
Acquisitions per Second
Shows the number of acquired waveforms per second.
Sampling Rate C1 - C4
Shows the number of recorded analog waveform points per second. The sample rate is
the reciprocal value of the resolution.
Remote command:
ACQuire:POINts:ARATe? on page 258
Sampling Rate D7 - D0
Shows the number of recorded digital waveform points per second. Only available if
the mixed signal option R&S RTH-B1 is installed, and logic channels are active.
RUN STOP key
Starts and stops the acquisition.
Remote command:
RUN on page 258
STOP on page 259
Acquisition Control