Service Guide E8364-90001
A- 15
PNA Series Microwave Network Analyzers
Error Terms
E8362A, E8363A, E8364A
Error Term Data
Isolation (E
XF
and E
XR
)
Isolation, or crosstalk, is the uncorrected forward and reverse isolation error terms that
represent leakage between the test ports and the signal paths. The isolation error terms
are characterized by measuring transmission (S
21
, S
12
) with loads attached to both ports
during the measurement calibration.isolation errors affect transmission measurements
primarily where the measured signal level is very low.
The measurements most affected by isolation error terms are DUTs with large insertion
loss. Since these terms are low in magnitude, they are usually noisy (not very repeatable).
Typical Cause of Failure
A
loose cable connection or leakage between components
in the test set are the most likely
cause of isolation problems.
After verifying the cable and its connections, suspect the analyzer
switch splitter, step
attenuator, coupler, or receivers, and associated cabling
.
To troubleshoot, refer to
“Checking the Receiver Group” on page 4-50
Signal Separation Group” on page 4-46
Figure A-8 Typical E
XF
/E
XR
with 10 Hz Bandwidth
Summary of Contents for E8362A
Page 11: ...Service Guide E8364 90001 1 1 1 Safety and Regulatory Information ...
Page 19: ...Service Guide E8364 90001 2 1 2 General Product Information ...
Page 29: ...Service Guide E8364 90001 3 1 3 Tests and Adjustments ...
Page 79: ...Service Guide E8364 90001 4 1 4 Troubleshooting ...
Page 139: ...Service Guide E8364 90001 5 1 5 Theory of Operation ...
Page 169: ...Service Guide E8364 90001 6 1 6 Replaceable Parts ...
Page 215: ...Service Guide E8364 90001 7 1 7 Repair and Replacement Procedures ...
Page 287: ...Service Guide E8364 90001 A 1 A Error Terms ...
Page 303: ...Service Guide E8364 90001 B 1 B Option Enable Utility ...
Page 309: ...Service Guide E8364 90001 C 1 C Firmware Upgrades ...
Page 313: ...Service Guide E8364 90001 D 1 D Operating System Recovery ...