Keysight E6640A, Measurement Applications User & Programmer Reference

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8 Channel Power Measurement
FREQ Channel
can’t tune below
while TG on) TG turned on on
T03 9 kHz 3.0 GHz 3.08 GHz
T06 9 kHz 6.0 GHz 6.05 GHz
The following table shows the Center Frequency Presets for modes other than Spectrum Analyzer:
Mode CF Preset for RF
WCDMA 1 GHz
WIMAXOFDMA, 1 GHz
BASIC 1 GHz
ADEMOD 1 GHz
VSA 1 GHz
TDSCDMA 1 GHz
PNOISE 1 GHz
LTE 1 GHz
LTETDD 1 GHz
MSR 1 GHz
GSM 935.2 MHz
NFIGURE 1.505 GHz
RF Center Freq
SCPI command for specifying the RF Center Frequency. This command will set the Center Frequency to be
used when the RF input is selected, even if the RF input is not the input that is selected at the time the
command is sent. Note that the Center Freq function in the Frequency menu on the front panel always
applies to the currently selected input.
Scope Meas Global
Remote Command [:SENSe]:FREQuency:RF:CENTer <freq>
[:SENSe]:FREQuency:RF:CENTer?
Example FREQ:RF:CENT 30 MHz
Notes This command is the same in all modes, but the parameter is Measurement Global. So the value is
independent in each mode and common across all the measurements in the mode.
Dependencies If the electronic/soft attenuator is enabled, any attempt to set Center Frequency such that the Stop
Frequency would be >3.6 GHz fails and results in an advisory message. If the equivalent SCPI
command is sent, this same message is generated as part of a “–221, Settings conflict” warning.
If Source Mode is set to Tracking, and the Max or Min Center Freq is therefore limited by the limits of
the source, a warning message is generated, “Data out of range;clipped to source max/min” if these
limits are exceeded. Note that for an external source, these limits can be affected by the settings of
380 W-CDMA & HSPA Measurement Applications Reference