Zeroing The Power Meter; Setting The Input Frequency - Keysight V3500A User Manual

Zeroing the power meter

Zeroing the power meter improves the measurement accuracy of the V3500A
significantly, especially at low power levels. After the power meter is turned on,
you should always perform zeroing prior to making any measurements. The
V3500A should be zeroed when it warms up, and periodically when the ambient
temperature changes.
1 Prior to zeroing the V3500A, make sure all the RF power is removed from the
2 Once all RF power is removed from the V3500A RF input port, press ZERO. The

Setting the input frequency

The instrument returns to the default frequency value setting of 500 MHz after
NOTE
the instrument is turned off.
The V3500A has an internal calibration table that corrects for frequency response
variations of its circuitry. For best accuracy, set the input signal frequency
correctly.
1 Press FREQUENCY to set the input frequency. The left arrow decreases the
2 Holding either the left or right keypad down will cause the frequency to
Keysight V3500A User's Guide
V3500A RF input port. This can be done by disconnecting the RF input, or by
disabling the output of any signal sources connected to V3500A.
V3500A will display the message "Zeroing..." during the zeroing process. When
the display returns to normal mode, zeroing is complete and measurements
can be made.
frequency, and the right arrow increases the frequency value. The present
frequency setting is displayed on the second line of the display when the
display is in normal mode.
decrease or increase rapidly, allowing the user to quickly set the frequency to
the desired value.
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