Emerson R&S SGT100A User Manual page 267

®
R&S SGT100A
The crest factor and the peak power of the external baseband signal are entered in
the section "Baseband Input Level". These values are necessary for a correct inter-
nal signal processing in the R&S SGT. They can also be automatically estimated
by a measurement using the "Auto Level Set" button.
DIG IQ Auto Setting
Activates automatic adjustment of the baseband input signal.
The R&S SGT receives peak level, level and crest factor values directly from the con-
nected transmitter and recognizes changes automatically.
Remote command:
[:SOURce<hw>]:BBIN:DIGital:ASETting:STATe
Measurement Period
Sets the recording duration for measuring the baseband input signal by "Auto Level
Set". For accurate level measurements, set the measurement period to a time value
that is long enough to capture several periods of the input signal.
Remote command:
[:SOURce<hw>]:BBIN:MPERiod
Auto Level Set
Starts measuring the input signal. The measurement estimates the crest factor, the
peak power and the rms power. The estimated values are automatically entered into
the input fields "Crest Factor", "Peak Level" and "Level". Using these estimated values
the internal gain control adjusts the input signal gain to achieve an optimal dynamic
range.
Remote command:
[:SOURce<hw>]:BBIN:ALEVel:EXECute
Crest Factor
Sets the crest factor of the external analog or digital baseband signal. Indicates the
crest factor acquired with "Auto Level Set".
Remote command:
[:SOURce<hw>]:BBIN:CFACtor
Peak Level
Enters the peak level of the external digital baseband signal relative to full scale of 0.5
V (in terms of dB full scale).
Indicates the peak level acquired with "Auto Level Set".
Remote command:
[:SOURce<hw>]:BBIN:POWer:PEAK
Level
Indicates the estimated rms level acquired with "Auto Level Set".
Remote command:
[:SOURce<hw>]:BBIN:POWer:RMS?
User Manual 1176.8674.02 ─ 12
External baseband signal - baseband input
on page 456
on page 458
on page 455
on page 456
on page 460
on page 460
Signal generator settings
267