Rohde & Schwarz R&S UPP, User Manual

Page: 438 / 938

Instrument Functions
R&S
®
UPP
422 User Manual 1411.1055.32 ─ 10
"Value " The RMS measurement is performed over a preset time which must
be entered in the parameter field below.
Numeric input of the measurement time. All desired signals (including
the reference signals) must have occurred within this time. Channels
with a longer delay time are labeled as invalid after this time expires
and the user info line displays a short note. All measurement results
are updated after this time. Thus for continuous measurement this
numerical value also determines the repetition rate of the measure-
ment.
Remote command:
SENSe[1]:FUNCtion:APERture:MODE
on page 753
SENSe[1]:VOLTage:APERture
on page 754
Fnct Settling
See Chapter 5.38, "Settling Methods" , on page 458.
Auto Trigger Threshold Low
Negative percentage trigger threshold, relative to the nominal RMS value of the range
selected for this channel. For a threshold of -10%, therefore, the analog signal in the
range "200 mV RMS" would trigger at a peak value less than -28.28 mV.
The delay time of a channel is triggered, that is, determined up to the time when the
audio signal first exceeds the "high" threshold or first undershoots the "low" threshold.
Remote command:
SENSe[1]:LIPSync:AUDio:THReshold:LOW
on page 769
Auto Trigger Threshold High
Positive percentage trigger threshold, relative to the nominal RMS value of the range
selected for this channel. For a threshold of +10%, therefore, the analog signal in the
range "800 mV RMS" would trigger at a peak value greater than 226.27 mV.
The delay time of a channel is triggered, that is, determined up to the time when the
audio signal first exceeds the "high" threshold or first undershoots the "low" threshold.
Remote command:
SENSe[1]:LIPSync:AUDio:THReshold:HIGH
on page 769
Delay Measurement