Rohde & Schwarz 1145.1010.04/05/06, Operating Manual

Page: 689 / 813

R&S
®
ZVA/ZVB/ZVT SENSe
1145.1084.12 6.227 E-6
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
.
[SENSe<Ch>:]FREQuency:CONVersion:MIXer:TFRequency DCLower | DCUPper
| UCONversion | BAND1 | BAND2
Selects the frequency conversion mode of the IF signal.
<Ch> Channel number.
DCLower
DCUPper
UCONVersion
IF = LO – RF (down conversion lower sideband, equivalent to
BAND1)
IF = RF – LO (down conversion upper sideband, equivalent to
BAND2)
IF = LO + RF (up conversion)
*RST value DCUPper
SCPI, Command
Types Device-specific, command or query.
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.
[SENSe<Ch>:]FREQuency...
This subsystem sets frequency-related parameters, especially the measurement and display ranges for
the different sweep types, and controls the harmonic distortion measurement.
Note: For a frequency sweep the range can be defined alternatively by a combination of Start/Stop
frequencies or a Center frequency and Span. In fixed frequency mode (power sweep or
Time/CW Mode; see [SENSe<Ch/Tr>:]FUNCtion[:ON]) the measurement frequency is set by
means of [SENSe<Ch>:]FREQuency:CW|FIXed.