Measurement
237
• Since the "RF ranging" is hold during the measurement, the
system dynamic range of the E5071C will degrade by 6dB, as a
result of the 8-term calibration performed externally. However,
there is NO dynamic range degrade by 8-term error model
calibration with internal calibration of the ENA.
Example
Assume you perform 4-port TRL calibration on channel1, you need to send
following command before calibration. Also, you need to keep this state all
the time for calibration and measurement.
SYSTem:CORRection:STATe OFF 'system correction off
SERVice:ADJust:VIRTual:BRIDge:STATe OFF 'virtual bridge off
SERVice:ADJust:SENSe1:SWEep:RF:RANGe:PORT1:AUTO OFF 'RF ranging
mode to manual on port1
SERVice:ADJust:SENSe1:SWEep:RF:RANGe:PORT2:AUTO OFF 'RF ranging
mode to manual on port2
SERVice:ADJust:SENSe1:SWEep:RF:RANGe:PORT3:AUTO OFF 'RF ranging
mode to manual on port3
SERVice:ADJust:SENSe1:SWEep:RF:RANGe:PORT4:AUTO OFF 'RF ranging
mode to manual on port4
• Once you preset the system, you need to resend all of the
above commands.
• Once you save and recall the state using this method, you need
to resend all of the above commands except for system
correction off.
To Next Page
Loading...
Need help?
General
