R&S FSH Distance-to-Fault Mode (R&S FSH-K41)
Configuring Cable and Antenna Tests
Operating Manual 1173.6275.12 - 30 227
Adjusting the vertical axis automatically
The R&S FSH provides an automatic scaling routine that scales the vertical axis in a
way that the results fit ideally on the display. The R&S FSH does this by determining
the minimum and maximum trace values and scaling the vertical axis according to
these values.
► Press the AMPT key.
► Press the "Range" softkey.
► Select the "Auto Scale" menu item.
The R&S FSH performs automatic adjustment of the vertical axis.
Setting the reference position
The reference position defines the position of the reference line in the diagram. The
reference position is a linear value between 0 and 10. Each value represents one
horizontal grid line of the diagram. 0 corresponds to the top grid line and 10
corresponds to the bottom grid line.
When you change the reference position, the R&S FSH also shifts the position of the
trace by the magnitude of the reference position change. It has no effect on the
reference value itself.
► Press the AMPT key.
► Press the "Ref Pos" softkey.
► Enter the reference position you want.
The R&S FSH moves the trace accordingly.
7.2.3.2 Setting the Attenuation
The R&S FSH provides functions to attenuate the signal at the RF input.
► Press the "RF Att/Amp/Imp" softkey.
► Select the "Manual:" menu item or one of the automated attenuation modes.
► Enter the attenuation of the signal at the RF input.
You can set an RF attenuation in the range from 0 dB to 40 dB in 5 dB steps.
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