Keysight Technologies U5855A User Manual page 91

Run RT Cal for reflection source correction
If you know the temperature of the reflection source, you may enter the value.
If not, point the U5850 Series at the reflection source and select YES to run the
calibration to obtain the temperature.
Push left/right to
move the indicator.
Push up/down to
increase/decrease
the digits.
Keysight U5850 Series User's Guide
Image Capture, Processing, and Measurement Functions
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