user manual

Chapter 9 131
Service
Automated Performance Tests
LD MATCH XX Measures reflection at port XX when the port is switched to
the test set’s TRANSMISSION port, which is terminated
with a precision load. Tests the specified performance of
“Load Match, Test Port Selected,” listed in Table 8-2 in
Chapter 8, “Specifications.”
Steps:
•Set specified frequency for test set.
•Perform reflection 1-port (User 1-port
1
) calibration at end
of cable (using short, open, and load).
•Connect precision load to test set’s TRANSMISSION port.
•Measure reflection (S
11
1
) at each port XX connected to test
set’s TRANSMISSION port.
•If spec is 16 dB, trace must be below −16 dB.
IC MATCH R->XX
and
IC MATCH T->XX
Measures reflection at the test set’s REFLECTION port or
TRANSMISSION port when the port is switched to port
XX. Port XX is terminated with a precision load. Tests the
specified performance of “Interconnect Match,” listed in
Table 8-2 in Chapter 8, “Specifications.”
Steps:
•Set specified frequency for test set.
•Perform reflection 1-port (User 1-port
1
) calibration at end
of cable (using short, open, and load).
•Connect test cable to test set’s REFLECTION port or
TRANSMISSION port.
•Measure reflection (S
11
1
) at test set’s REFLECTION port
or TRANSMISSION port for each port XX when
terminated with a precision load.
•If spec is 16 dB, trace must be below −16 dB.