A-12
Service Guide E8364-90001
Error Terms
PNA Series Microwave Network Analyzers
Error Term Data
E8362A, E8363A, E8364A
Load Match (E
LF
and E
LR
)
Load match is a measure of the impedance match of the test port that terminates the
output of a 2-port device. The match of test port cables is included in this response. Load
match error terms are characterized by measuring the S
11
and S
22
responses of a “thru”
configuration during the calibration procedure.
The measurements most affected by load match errors are all transmission measurements,
and reflection measurements of a low insertion loss two-port device, such as an airline.
Typical Cause of Failure
The
calibration kit load or a bad “thru” cable
is the most common cause of load match
specification failure.
If the load and cable performance are independently verified, then suspect the analyzer
test port coupler, step attenuator, or the test receiver
at the bad port.
To troubleshoot, refer to
“Checking the Receiver Group” on page 4-50
or to
Signal Separation Group” on page 4-46
Figure A-5 Typical E
LF
/E
LR
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 ...