Rohde & Schwarz SMBV100A, Руководство по эксплуатации

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Instrument Function
R&S
®
SMBV100A
222 Operating Manual 1176.8016.02 ─ 17
In section "User Variation", you can determine the step size for adjusting the level
with the rotary knob (with "Variation Active On").
The power-on behavior of the instrument and the level display in the display
header are set in the "Power-On / EMF Settings" section (see
Chapter 5.5.6.3,
"Power-On/EMF Settings" , on page 225).
The lower sections provide access to the "Automatic Level Control" settings and to
"User Correction" settings. For more information about these functions, see
Chap-
ter 5.5.7, "Automatic Level Control - ALC" , on page 226 and Chapter 5.5.9, "User
Correction" , on page 232.
The remote commands required to define the settings are described in Chap-
ter 7.16.17, "SOURce:POWer Subsystem" , on page 785.
Level Settings
The offset-free level, attenuation mode, level offset and level limit are set in the top
section of the dialog.
RF Mode
Selects the level mode for signal output.
This function allows you, to optimize the RF output signal for applications, where
improved harmonic suppression or a low Signal-to-Noise ratio is required.
Note: The modes "Low Distortion" and "Low Noise", for improving harmonic suppres-
sion or the S/N ratio require that an attenuator is fitted.
"Normal" The generator provides an RF output signal with high signal to noise
ratio as well as low distortion, according to the data sheet.
"LOW Noise"
This setting forces the generator to optimize the signal to noise ratio.
"LOW Distortion"
The generator reduces distortion (harmonics) of the RF signal.
Remote command:
[:SOURce<hw>]:POWer:LMODe
on page 790
Amplitude
Sets the RF level of the RF output connector.
The level entered and displayed here corresponds to the level at the RF output, that
means any offset entry is not considered.
Note: Suppressed values in the status bar
For security concerns or certain operating modes, you can hide the frequency and
level display in the status bar.
●
The display has been disabled for security reasons.
See:
–
Annotation Frequency
– Annotation Amplitude
●
RF Block