This subsystem controls the analyzer's mixer measurement mode. Together with the Harmonic Distortion measurement and the arbitrary configuration of generator and receiver frequencies (Port Configuration), the mixer mode is included in option R&S ZVA-K4.
Command tree: [SENSe<Ch>:]FREQuency:CONVersion:MIXer
Defines a fixed frequency, to be assigned either to the RF, the LO, or the IF signal ([SENSe<Ch>:]FREQuency:CONVersion:MIXer:FIXed RF | LO | IF).
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<Ch> |
Channel number. If unspecified the numeric suffix is set to 1.
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<fixed_frequency> |
Fixed frequency. |
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Range [def. unit] |
Depending on the instrument model [Hz]. The increment (parameters UP or DOWN) is 0.1 kHz. |
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*RST value |
Minimum of the analyzer's frequency range, fMIN
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
*RST; FREQ:CONV:MIX:FFIX 1 GHz Reset the analyzer and specify a fixed frequency of 1 GHz. FREQ:CONV:MIX:FIX RF Assign the fixed frequency to the RF signal. The fundamental frequency is automatically assigned to the LO signal.
Query the assignment of the fundamental frequency to prove the last statement. The response is LO.
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Selects the mixer input or output signal which is at the fixed frequency defined via ([SENSe<Ch>:]FREQuency:CONVersion:MIXer:FFIXed).
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<Ch> |
Channel number.
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Parameters |
RF –
mixer input signal |
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*RST value |
LO
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See SENSe<Ch>:]FREQuency:CONVersion:MIXer:FFIXed
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Selects the mixer input or output signal which is at the fundamental frequency (channel frequency, to be defined by means of [SENSe<Ch>:]FREQuency:STARt, [SENSe<Ch>:]FREQuency:STOP, [SENSe<Ch>:]FREQuency:CW etc.).
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<Ch> |
Channel number.
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Parameters |
RF –
mixer input signal |
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*RST value |
RF
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See SENSe<Ch>:]FREQuency:CONVersion:MIXer:FFIXed
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[SENSe<Ch>:]FREQuency:CONVersion:MIXer:IFFixed
<fixed_frequency>Defines a fixed frequency and assigns it to the IF signal (for alternative commands see example below).
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<Ch> |
Channel number.
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<fixed_frequency> |
Fixed frequency. |
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Range [def. unit] |
Depending on the instrument model [Hz]. The increment (parameters UP or DOWN) is 0.1 kHz. |
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*RST value |
Minimum of the analyzer's frequency range, fMIN
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
*RST; FREQ:CONV:MIX:IFF 1 GHz Reset the analyzer and specify a fixed frequency of 1 GHz, to be assigned to the IF signal. FREQ:CONV:MIX:FFIX?; FIX? Query the fixed frequency and the signal assignment using the alternative commands. The response is 1000000000;IF.
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SOURce1 | SOURce2
Selects an external generator as a signal source for the LO signal (external source; to select an internal source use [SENSe<Ch>:]FREQuency:CONVersion:MIXer:LOINternal).
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<Ch> |
Channel number.
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NONE |
LO signal is not controlled by the analyzer. |
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<port_number> |
Number of external generator as defined in the System Configuration – External Generators dialog. |
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*RST value |
NONE
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
FREQ:CONV:MIX:LOEX 1 Select the generator no. 1 as a signal source for the LO signal. An error message -222,"Data out of range..." is generated unless an external generator is available.
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[SENSe<Ch>:]FREQuency:CONVersion:MIXer:LOFixed
<fixed_frequency>Defines a fixed frequency and assigns it to the LO signal (for alternative commands see example below).
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<Ch> |
Channel number.
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<fixed_frequency> |
Fixed frequency. |
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Range [def. unit] |
Depending on the instrument model [Hz]. The increment (parameters UP or DOWN) is 0.1 kHz. |
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*RST value |
Minimum of the analyzer's frequency range, fMIN
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
*RST; FREQ:CONV:MIX:LOF 1 GHz Reset the analyzer and specify a fixed frequency of 1 GHz, to be assigned to the LO signal. FREQ:CONV:MIX:FFIX?; FIX? Query the fixed frequency and the signal assignment using the alternative commands. The response is 1000000000;LO.
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Selects an analyzer port as a signal source for the LO signal (internal source; to select an external generator use [SENSe<Ch>:]FREQuency:CONVersion:MIXer:LOEXternal).
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<Ch> |
Channel number.
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NONE |
LO signal is not controlled by the analyzer. |
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<port_number> |
Analyzer port number |
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Range [def. unit] |
3 (for 3-port analyzers), 3, 4 (for 4-port analyzers) No internal source is available for 2-port instruments. |
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*RST value |
NONE
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
FREQ:CONV:MIX:LOIN 3 Select port no. 3 as a signal source for the LO signal.
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[SENSe<Ch>:]FREQuency:CONVersion:MIXer:RFFixed
<fixed_frequency>Defines a fixed frequency and assigns it to the RF signal (for alternative commands see example below).
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<Ch> |
Channel number.
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<fixed_frequency> |
Fixed frequency. |
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Range [def. unit] |
Depending on the instrument model [Hz]. The increment (parameters UP or DOWN) is 0.1 kHz. |
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*RST value |
Minimum of the analyzer's frequency range, fMIN
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
*RST; FREQ:CONV:MIX:RFF 1 GHz Reset the analyzer and specify a fixed frequency of 1 GHz, to be assigned to the RF signal. FREQ:CONV:MIX:FFIX?; FIX? Query the fixed frequency and the signal assignment using the alternative commands. The response is 1000000000;RF.
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BAND1 | BAND2Selects the frequency conversion mode of the IF signal.
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<Ch> |
Channel number.
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DCLower |
IF = LO –
RF (down conversion lower sideband, equivalent to BAND1) |
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*RST value |
DCUPper
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
*RST; FREQ:CONV:MIX:LOF 3 GHz Reset the analyzer and specify a fixed frequency of 1 GHz, to be assigned to the LO signal. FREQ:STAR 1 GHz; STOP 2 GHz Define a sweep range between 3 and 4 GHz, to be assigned to the RF signal. FREQ:CONV:MIX:TFR DCL Select down conversion to the lower sideband, corresponding to an IF frequency range between 2 GHz and 1 GHz.
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