E5071C
164
Confidence Check on Calibration Coefficients Using ECal
• Overview
• Procedure
Other topics about Calibration with ECal
Overview
Using the ECal module, the E5071C lets you verify the obtained calibration
coefficients to determine whether correct measurement is possible with
them.
The E5071C can set ECal to the state used to verify the measurement
parameters and then copy the appropriate characteristics of that
verification state to the memory trace from the ECal's built-in memory.
This is done according to the measurement parameters of the active trace
of the active channel. While measuring ECal in this specified state, you can
compare the measurement results with those of the E5071C and with the
appropriate measurement results stored in ECal in several different ways.
These include simultaneously displaying the data and memory traces or
displaying the math operation results between the data and memory
traces. This enables you to verify the correctness of measurement for each
measurement parameter when the obtained calibration coefficients are
used.
Procedure
1. Connect the USB cable between the USB port of the ECal module and
that of the E5071C. You can make this connection while the
E5071C's power is ON.
2. Allows the ECal module to warm up for 15 to 20 minutes until the
module indicates from WAIT to READY.
3. Press Channel Next/Channel Prev keys to select the channel for which
you want to perform the verification.
4. Press Meas key.
5.
Select the S-parameter you want to verify. You cannot verify the
mixed mode S-parameter.
6. Connect the test ports of the E5071C corresponding to the selected
S-parameter (for example, ports 1 and 2 when the S-parameter is
S21) and the ports of the ECal module.
7. If you don't use all of the ECal module's ports, connect terminations
to the unused ports.
8. Press Cal key.
9. Click ECal.
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