R&S FSH series, Quick Start Manual

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113
E-02
Additional measurement of the impedance
matching:
Apart from the DTF measurement, the R&S FSH
offers the option of also determining the cable
impedance matching as a function of the
frequency. For this purpose, the R&S FSH must be
calibrated with three calibration standards (short-
circuit, open circuit and 50 ohm match) instead of
with just one. Proceed as follows:
„
Press the CALIBRATE softkey.
„
Select the DTF + REFLECTION menu item with
the rotary knob or the cursor key (
∧
or
∨
) and
confi rm the selection with the ENTER key or the
CALIBRATE softkey.
The R&S FSH opens a text box in which it requests
the matching of the measuring cable with a short
circuit (Short), an open circuit (Open) and 50 ohm
match (Load) consecutively.
„
Firmly screw on the required calibration
standards to the output of the measuring cable
one after the other and start the calibration for
each with the CONTINUE softkey.
After calibration is fi nished, the R&S FSH displays
DTF REFLECTION (CAL) at the top of the screen.
„
Then press the MEAS MODE softkey.
„
Select REFLECTION with the rotary knob or the
cursor keys (
∧
or
∨
).
„
Confi rm the selection by pressing the
MEAS MODE softkey again or by pressing the
ENTER key.
GalaxyE_v1-10_3.indd 113 GalaxyE_v1-10_3.indd 113 08.04.2009 15:21:53 08.04.2009 15:21:53