R&S SMA100B - Page 266

Improving level performance
R&S
®
SMA100B
266User Manual 1178.3834.02 ─ 09
Pulse Analysis
Activates pulse data analysis.
To start the automatic pulse analysis, select "Start Cont." button in the main measure-
ment diagram.
Remote command:
:SENSe<ch>[:POWer]:SWEep:TIME[:SENSor]:PULSe:STATe on page 508
All Annotations Off
Indicates the state of the annotations.
Remote command:
n.a.
Base
Selects the calculation basis for the threshold parameters.
"Voltage related"
Calculates the pulse parameters rise/fall time and pulse width by the
voltage over time U(t).
Voltage-related parameters represent the usual case.
"Power related"
Represents the pulse parameters as power values.
To obtain equivalent power-dependent values, the voltage-dependent
threshold values are converted (squared), (see example in table
below).
Distal Mesial Proximal
Voltage related: 90% 50% 10%
Power related: 81% 25% 1 %
log. Scale (for example):
(approximately, difference between top- base
power > 30 dB )
-0.9dB -6dB -20dB
Remote command:
:SENSe<ch>[:POWer]:SWEep:TIME[:SENSor]:PULSe:THReshold:BASE
on page 508
:TRACe<ch>[:POWer]:SWEep:PULSe:THReshold:BASE? on page 542
Distal
Sets the upper reference level in terms of percentage of the overall pulse level (power
or voltage related). The distal power defines the end of the rising edge and the start of
the falling edge of the pulse.
Remote command:
:SENSe<ch>[:POWer]:SWEep:TIME[:SENSor]:PULSe:THReshold:POWer:
HREFerence on page 508
:TRACe<ch>[:POWer]:SWEep:PULSe:THReshold:POWer:HREFerence
on page 542
Using power sensors