Remote Control - Commands
R&S NRP
1144.1400.12 6.58
E-3
[SENSe[1..4]][:POWer][:AVG]:SMOothing:STATe[?] ON | OFF
Activates digital lowpass filtering of the sampled video signal.
The problem of instable display values due to a modulation of a test signal described under
SENS[1..4]:SAMP
can also be eliminated by lowpass filtering of the video signal. The lowpass filter
eliminates the variations of the display even in case of unperiodic modulation and does not require any
other setting.
If the modulation is periodic, the setting of the sampling window is the better method since it allows for
shorter measurement times.
*RST value
:
depending on sensor
[SENSe[1..4]][:POWer]:BURSt:DTOLerance[?] <float_value>
The end of a burst (power pulse) is recognized when the signal level drops below the trigger level.
Especially with modulated signals, this may also happen for a short time within a burst. To prevent the
supposed end of the burst from being recognized too early or incorrectly at these positions, a time
interval can be defined via SENS[1..4]:BURS:DTOL (drop-out tolerance) in which the pulse end is only
recognized if the signal level no longer exceeds the trigger level. This is shown in
Fig. 6-7
: the drop-out
time, i.e. the time in which the signal remains below the trigger level, is shorter than the drop-out
tolerance. The burst end is thus recognized correctly.
Drop-out time
Trigger level
Power
Time
BURSt:DTOLerance
Pulse interval
BURSt:DTOLerance
Fig. 6-7: Meaning of drop-out TOLerance.
Unit:
S
Value range:
depending on sensor
*RST value
:
depending on sensor
