Rohde & Schwarz EVSG-B1, User Manual

Page: 154 / 418

Graphic Measurement Modes
R&S
®
EVSG1000
154 User Manual 1178.6227.02 ─ 06
Manual mode Select a predefined fixed value manually.
Remote command:
FFT_RESBW_AUTO
on page 364
FFT_RESBW_FIX_KHZ
on page 365
IF BW
Defines the IF demodulation bandwidth for RX input in "AF Spectrum" mode.
Remote command:
FFT_IF_BW_KHZ
on page 364
AF In BW
Access
: [BW]
Access VNC : [e]
Bandwidth with which the LF input is measured.
Remote command:
SCOPE_BB_AF_BW_KHZ
on page 368
FFT_BB_AF_BW_KHZ
on page 361
IF BW AM
Defines the IF demodulation bandwidth for the AM component of LF input.
This function is only available for AM carrier input, which cannot be selected directly in
"AF Spectrum" mode. However, it becomes available when you do one of the following:
●
Switch to the AF spectrum from "ILS LOC" or "ILS GP" mode in low IF mode
●
Switch to the AF spectrum from "VOR" mode for LF input, selecting the AM
demodulated subcarrier (see
"Switching from numeric to graphical results"
on page 104).
Remote command:
FFT_BB_IF_BW_KHZ
on page 361
5.3.4 Configuring the Amplitude (Y-Axis) for RF Input
Access : [Ampt]
Access VNC : [w]
The amplitude settings configure the y-axis of the spectrum. For the AF Spectrum, the
modulation depth of the AM signal components is displayed on the y-axis.
The following settings are available for RF input.
Y-Range ...................................................................................................................... 154
RF Att .......................................................................................................................... 155
RF Mode ..................................................................................................................... 155
Y-Range
Determines the displayed modulation depth range on the y-axis of the spectrum.
Remote command:
FFT_GRID_YRANGE_DB
on page 363
AF Spectrum Mode (Option R&S EVSG-K11)