Chapter 11 11-7
Error Terms
Error Correction
Source Match (E
SF
and E
SR
)
Description Source match is a measure of test port connector match, as well as the
match between all components from the source to the test port. These are the forward and
reverse uncorrected source match terms of the driven port.
Significant System Components
• load calibration kit device
• open calibration kit device
• short calibration kit device
•bridge
• test port connectors
• bias tees
• step attenuator
• transfer switch
• test port cables
Affected Measurements Reflection and transmission measurements of highly
reflective devices are most affected by source match errors.
Figure 11-2 Typical E
SF
/E
SR
without and with Cables
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