R&S FSH3 Setting and Using the Measurement Functions
When OPEN calibration is over, the R&S FSH3 prompts the user to perform SHORT calibration.
¾ Connect a short to the measurement input of the
bridge.
¾ Using CONTINUE start the SHORT calibration.
¾ Calibration can be aborted with CANCEL.
Note: Instead of a SHORT, the R&S FSH3 can
be calibrated again with an OPEN. As the
R&S FSH3 only measures the magnitude
of the reflected voltage, it cannot
distinguish between a SHORT and an
OPEN. However, calibration with a
SHORT increases measurement accuracy
because the R&S FSH3 takes the
average of the calibration values for the
SHORT and the OPEN.
During calibration, the R&S FSH3 outputs the
message "Calibrating SHORT, please wait...".
Calibration can be aborted with the CANCEL softkey.
When calibration is over, the R&S FSH3 outputs the
message "Reflect. calibrated" for 3 seconds.
Reflection is displayed in the top right-hand corner of
the measurement diagram to indicate that the
R&S FSH3 is calibrated for reflection measurements.
The softkey label REFLECT CAL is highlighted in
green.
¾ Connect the DUT to the measurement port of the
VSWR bridge.
The R&S FSH3 displays the return loss of the DUT.
1145.5973.12 4.61 E-6
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