Learn More About These Settings: Set Scale; Set Frequency; Set Source Control; Set Scale - Keysight N9912A User Manual

How to perform External Zeroing
 Press Cal 5 .
 Then
While either Internal or External Zeroing is being performed, "Zeroing..." is shown on
the FieldFox screen. While this message is present, do NOT make any changes to the
FieldFox.
In addition, once External Zeroing has started, the power source must be OFF for the
entire time that the Zeroing message is present. Otherwise, the calibration will be
compromised but NO warning is shown.
Frequency
A table of correction factors versus frequency is stored within the Keysight U2000
Series Power Sensors. The frequency of the power to be measured is entered in the
FieldFox so that the appropriate correction factor can be used.
The frequency of the power measurement is NOT limited by the frequency range of
the FieldFox, but the frequency range of the power sensor, which can be much wider.
How to enter Frequency of the Power Measurement
 Press Freq/Dist or Meas Setup 4 .
 Then Frequency.
 Then type a value using the numeric keypad. The default frequency is 50 MHz.
 Then press a multiplier key. Learn about multiplier abbreviations on page 19.
The current frequency is shown on the FieldFox screen.
Source Control
This feature may require an option on some FieldFox models.
With the FieldFox internal source enabled, these settings allow you to make simple,
absolute power measurements. The source and the power sensor can be physically
separated by a long distance when using a long USB cable.
Set the internal source frequency by setting the frequency of the power
measurement. Learn how in the previous section.
Power Meter measurements are limited by the combined frequency ranges of the
internal source when enabled and the frequency range of the power sensor. For
example, assume the frequency range of your sensor is 9 kHz to 18 GHz and the
frequency range of the FieldFox is 2 MHz to 6 GHz.
 With the Source ON, measurements can be made from 2 MHz to 6 GHz.
 With the Source OFF, measurements can be made from 9 kHz to 18 GHz.
How to set Source Control and Power Level
 Press Freq/Dist
 Then
NOTE When Option 208 (FOPS) is enabled, to access Source Control, press Sweep 3
Then
 Then
Power Meter Mode – Option 302
External Zero.
Advanced
Learn more about FOPS beginning on page 123
Power Setup
Source Enable
119