574 Keysight N9915-90020 User’s Guide
Power Meter (USB/LAN) Mode - Option 302
USB and LAN Power Meter Settings
Using Autoscale, the current reading is used for the center of the scale, and
Min and Max values are set accordingly.
—Press Scale / Amptd
.
—Then
Autoscale.
Source Power Measurements
Before making a source power measurement, a calibration is required. Requires
a compatible USB power sensor. Learn more about supported Keysight USB
and LAN Power Sensors, please visit:
www.keysight.com/find/usbsensorsforfieldfox.
How to make a Source Power Measurement
—Press Measure 1
> Src Power Measure to open the Source Power Measure
wizard.
— Follow the Source Power Measure Wizard’s instructions.
When you select the
Src Power Measure softkey the Rx Power is enabled
and the
Average (default) is disabled. And, the displayed power meter is
replaced by a Power vs. Frequency grid display of the source and receiver
power.
—Press
Src Power Memory - to store the source power measurement
—Press
Gain - applies the stored source power measure
Relative and Offset Power Measurements
Power measurements can be made that are relative to another reading or that
are offset by a fixed value.
— Use Relative to measure the difference between power levels.
— Use Offset to account for components or a long length of cable that is used
before the power sensor. For example, if using a 10 dB attenuator to protect
the FieldFox, enter an Offset Value of 10 to read the power as it would
appear without attenuation. If using a 10 dB amplifier, enter an Offset Value
of –10 to read the power as it would appear without amplification.
How to set Relative and Offset Power Measurements
—Press Scale / Amptd.
— Then choose from the following:
—
Relative Off On When switched to ON, the FieldFox measures and
stores the current power level. Subsequent power measurements
display a power level which is relative to the stored value. When
relative is ON, the units change from dBm to dB or from Watts to %.
To Next Page
Loading...
