Power Linearity Performance Verification - Keysight Technologies 8481A Operating And Service Manual

2 General Information
3 Launch the Interactive IO on the Keysight IO Libraries Suite to send SCPI
4 Reset the power meter in a known state by sending "*RST" command,
5 Connect the DUT to the power meter 1 mW calibrator and perform zeroing for
6 Perform calibration for the DUT by sending "CAL:AUTO ONCE".
7 Set the frequency of the DUT to 50 MHz by sending "FREQ 50MHz".
8 Enable auto-averaging for the DUT by sending "AVER:COUN:AUTO ON".
9 Change the power measurement unit of the DUT to watt by sending
10 Disconnect the DUT from the power meter 1 mW calibrator.
11 Perform zeroing for the DUT by sending "CAL:ZERO:AUTO ONCE".
12 Set the DUT to the single trigger mode by sending "INIT:CONT OFF".
13 Read the noise level of the DUT by sending "READ" and then record the
14 Repeat
15 Compare the calculated mean value to the system specification. If the test

Power linearity performance verification

The power linearity performance verification measures the relative linearity error
of the 8480. All measurements are performed at 50 MHz. The reference power
level for the linearity measurement is 0 dBm for the 8483A and -30 dBm for
8481/5/7D.
This performance verification requires the following equipment:
– signal generator (N5182A)
– thermocouple-based average power sensor, as a reference sensor
– power meter (E4416/7A)
46
commands to the DUT.
followed by "SYST:PRES" command to pre-set the meter's output to its
default value.
the DUT by sending "CAL:ZERO:AUTO ONCE".(Please use the recommended
adapter for the respective model)
"UNIT:POW W".
reading.
step 13 for 10 times and then calculate the mean value of the readings.
fails, refer to "Adjustments"
(N8481A/5A/7A)
on page 50.
Keysight 8480 Series Operating and Service Manual