Configuring the Signal in the RF Domain
R&S
®
SMW200A
433User Manual 1175.6632.02 ─ 16
Example: Functionality of the converter mode
As the R&S SMW is a 2 path signal generator, it optimally supports external frequency
converters. For convenient operation, this functionality calculates the resulting system
frequency.
The converter mixes an I/Q modulated RF signal of the first path with an unmodulated,
multiplied signal generated in the second path of the R&S SMW.
To configure the converter frequency:
●
Set the frequency of the modulation carrier and the multiplication factor in the first
path.
●
Select the mixing frequency in the second path.
According to the selected converter mode, the R&S SMW shows the resulting fre-
quency in the status bar.
The modes selectable show the basis of the calculation. Due to the interaction of the
two paths, active converter modes are mutually exclusive. Depending on the band to
be used, select the appropriate mode:
"OFF"
No converter considered.
"Multiplier * RFB + RFA"/"Multiplier * RFA + RFB"
Uses the upper sideband.
"Multiplier * RFB - RFA"/"Multiplier * RFA - RFB"
Uses the lower sideband.
Remote command:
n.a.
User Variation
Defines and activates a user-defined step width for varying the RF frequency or RF
level with the rotary knob.
If disabled, the step width varies in steps of one unit at the cursor position.
Variation Active ← User Variation
Activates the set user-defined step width.
Remote command:
[:SOURce<hw>]:FREQuency:STEP:MODE on page 1046
[:SOURce<hw>]:POWer:STEP:MODE on page 1100
Variation Step ← User Variation
Sets the user-defined step width.
Remote command:
[:SOURce<hw>]:FREQuency:STEP[:INCRement] on page 1047
[:SOURce<hw>]:POWer:STEP[:INCRement] on page 1101
Configuring RF Frequency and Level
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