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Service Guide E8364-90026
8-13
PNA Series Microwave Network Analyzers
General Purpose Maintenance Procedures
E8362B, E8363B, E8364B
Error Terms
Reflection Tracking (E
RF
and E
RR
)
Reflection tracking is the difference between the frequency response of the reference path
(R1 or R2path) and the frequency response of the reflection test path (A or B input path).
These error terms are characterized by measuring the reflection (S
11
, S
22
) of the open and
the short during the measurement calibration.
All reflection measurements are affected by the reflection tracking errors.
Typical Cause of Failure
The
calibration kit open or short
is the most common cause of
reflection tracking specification failure.
If the open or short performance has been independently verified, suspect the following:
• If both E
RF
and E
RR
fail
— suspect the analyzer
switch splitter
• If one of the track term specification fails
— suspect the
coupler, step attenuator, or the test receiver
of the failed port
To troubleshoot, refer to
“Checking the Receiver Group” on page 4-52
Signal Separation Group” on page 4-48
.
Transmission Tracking (E
TF
and E
TR
)
Transmission tracking is the difference between the frequency response of the reference
path (including the R input) and the frequency response of the transmission test path
(including the A or B input) while measuring transmission. The response of the test port
cables is included. These terms are characterized by measuring the transmission (S
21
, S
12
)
of the “thru” configuration during the measurement calibration.
All transmission measurements are affected by transmission tracking errors.
Typical Cause of Failure
The
test port cable
is the most common cause of transmission
tracking specification failure.
If the test port cable performance has been independently verified, suspect the following:
• If both E
TF
and E
TR
fail
— suspect the analyzer
switch splitter
• If one of the track term specification fails
— suspect the
coupler, step attenuator, or the test receiver
of the failed port
To troubleshoot, refer to
“Checking the Receiver Group” on page 4-52
Signal Separation Group” on page 4-48
.
Содержание E8362B
Страница 11: ...Service Guide E8364 90026 1 1 1 Safety and Regulatory Information ...
Страница 19: ...Service Guide E8364 90026 2 1 2 General Product Information ...
Страница 33: ...Service Guide E8364 90026 3 1 3 Tests and Adjustments ...
Страница 83: ...Service Guide E8364 90026 4 1 4 Troubleshooting ...
Страница 151: ...Service Guide E8364 90026 5 1 5 Theory of Operation ...
Страница 185: ...Service Guide E8364 90026 6 1 6 Replaceable Parts ...
Страница 269: ...Service Guide E8364 90026 7 1 7 Repair and Replacement Procedures ...
Страница 351: ...Service Guide E8364 90026 8 1 8 General Purpose Maintenance Procedures ...