Agilent Technologies E5071C Compliance Tests page 13

Agilent MOI for MHL Cables Compliance Tests
2. Connect all test cables to the ECal Module.
3. Press Calibrate > ECal > 4-Port Cal.
5.3.2.2.
The effect of the test fixtures are removed by a de-embedding function of the E5071C's
firmware. 4-port Touchstone files (*.s4p) are used to compensate differential transmission
lines of the fixtures, while 2-port Touchstone files (*.s2p) are used for compensation of the
single-ended lines.
The following 4-port fixture compensation is applied to 4-port measurements such as
Differential Insertion
Common-Mode conversion, and Far-End Crosstalk measurements.
1. Press Trace Next
2. Press Analysis > Fixture Simulator and turn it ON.
3. Press Analysis > Fixture Simulator > De-Embedding SnP > Topology > Select
Topology to select topology C.
4. Press Analysis > Fixture Simulator > De-Embedding SnP > Topology > Ports > to
select 1-2-3-4.
5. Press Analysis > Fixture Simulator > De-Embedding SnP > Topology > User File
(nwk1) and specify a 4-port de-embedding file (*.s4p) for the Source fixture.
6. Press Analysis > Fixture Simulator > De-Embedding SnP > Topology > Type
(nwk1) and select De-embed.
7. Press Analysis > Fixture Simulator > De-Embedding SnP > Topology > User File
(nwk2) and specify a de-embedding file (*.s4p) for the Sink fixture.
8. Press Analysis > Fixture Simulator > De-Embedding SnP > Topology > Type
(nwk2) and select De-embed.
De-embedding Fixture
Loss, Common-Mode
to select trace.
Insertion
13
Loss, Differential and