Agilent Technologies E5071C Manual page 237

E5071C
This function only exist on frequency 3 GHz, 4.5 GHz, 6.5 GHz
•
and 8.5 GHz options. It's not necessary to consider "virtual
bridge" on E5070A/71A/70B/71B, and E5071C frequency 14
GHz and 20 GHz options.
The virtual bridge can be turned off by the command:
SERVice:ADJust:VIRTual:BRIDge[:STATe] {ON|OFF|1|0}.
Since this command is under service menu, the "SVC" indicator
•
is turned on when the ENA sets virtual bridge OFF.
Once the ENA receives this command, it will keep this setting
•
until preset.
The state of "virtual bridge" is NOT saved in the state file, and
•
the default state of the "virtual bridge" is ON. So you need to
send the command to turn OFF the state, every time you recall
the state file.
Set the "RF ranging mode" to MANual (3 GHz, 4.5 GHz, 6.5 GHz and 8.5 GHz option only)
There is a hardware function called "RF ranging mode" on E5071C. The
default setting of this state is AUTO, and this state interferes with 8-term
error model calibration when calculating error coefficients on external
computer. You need to turn off the "RF ranging Auto mode".
The "RF ranging mode" can be changed by the command:
SERVice:ADJust:SENSe[Ch]:SWEep:RF:RANGe:PORT[Pt]:AUTO {ON|OFF}.
This command applies to each channel and measurement port.
This function only exist on frequency 3 GHz, 4.5 GHz, 6.5 GHz
•
and 8.5 GHz options. It's not necessary to consider "virtual
bridge" on E5070A/71A/70B/71B, and E5071C frequency 14
GHz and 20 GHz options.
Since this command is under service menu, the "SVC" indicator
•
is turned on when the ENA sets RF range auto mode OFF. Once
the ENA receives this command, it will keep this setting until
preset.
The state of "RF ranging mode" is NOT saved in the state file,
•
and the default state of the "RF ranging mode" is AUTO. So you
need to send the command to set state to AUTO OFF, every
time you recall the state file.
You need to keep the state of "RF range Auto Mode" as OFF, all the time
for calibration and measurement using this method
Once the ENA receives above command, it will keep this setting
•
until preset.
236