Rohde & Schwarz EVSG1000, User Manual

Page: 107 / 311

Graphic Measurement Modes
R&S
®
EVSG1000
107 User Manual 1178.6227.02 ─ 04
Remote command:
IFSPECT_FREQRF
on page 269
Span
Configures the frequency span, which must be at least 100 kHz. The span is distrib-
uted evenly to the left and right of the "RF Freq" on page 106. The configured value is
displayed as "Span" in the measurement settings area.
Remote command:
IFSPECT_FREQ_SPAN
on page 269
6.2.2 Configuring the Bandwidth
Access : [BW]
Access VNC : [e] > "F1"
RBW ............................................................................................................................107
RBW
Defines the resolution bandwidth (RBW) of the spectrum. The resolution bandwidth
defines the minimum frequency separation at which the individual components of a
spectrum can be distinguished. Small values result in high precision, as the distance
between two distinguishable frequencies is small. Higher values decrease the preci-
sion, but increase measurement speed.
The RBW can be determined automatically by the R&S EVSG1000, or manually.
AUTO mode The RBW is determined automatically according to the sweep time
and frequency range.
Manual mode Select a predefined fixed value manually.
Remote command:
IFSPECT_RES_BW
on page 270
6.2.3 Configuring the Amplitude (Y-Axis)
Access : [Ampt]
Access VNC : [w]
The amplitude settings configure the y-axis of the spectrum.
Ref Level ..................................................................................................................... 107
Y-Range ...................................................................................................................... 108
RF Att .......................................................................................................................... 108
RF Mode ..................................................................................................................... 108
Transducer Correction .................................................................................................109
Ref Level
The reference level determines the maximum power level displayed in the spectrum.
The reference level should be set as close as possible to the highest expected power
level to avoid overload at the RF input or signal clipping.
IF Spectrum Mode (Option R&S EVSG-K10)