Instrument Function
R&S
®
SMB100A
147
Operating Manual 1407.0806.32 ─ 21
Level Settings
The offset-free level, attenuation mode, level offset and level limit are set in the top
section of the dialog.
If you have the instrument equipped with a harmonic filter, you can also configure the
filter.
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:
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
.
●
The display is disabled when list mode is running, see
Remote command:
Note:
The SCPI command
[:SOURce<hw>]:POWer[:LEVel][:IMMediate][:
sets the level of the "Level" display, that is the level containing offset.
Limit - RF Level
Sets an upper limit for the RF output power.
You can use it to protect your DUT from damage due to high input power. If you enter
an RF level above this value, the instrument limits the output power to this specified
value, and generates a warning message.
RF Block
