HP 8711C User Manual page 254

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Load Match Load match is a transmission measurement error term. It is
a measure of the re-reflections contributed from the match
of the THRU standard and the receiver port (RF IN).
A typical value for this match term is < - 10 dE3.
- 2 5
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L o g Mag
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S t a r t 0 . 3 0 0 M H Z
Figure 6-7. Typical load Match Error Term
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Calibrating for Increased Measurement
Accuracy
Check the Calibration
5.0 Ref -45.00
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