R&S FSH3 Setting and Using the Measurement Functions
Alternatively to the return loss, the R&S FSH3 can also show the VSWR of the faults. Pressing the
AMPT key switches to the VSWR display.
¾ Press the AMPT key.
¾ Press the RANGE softkey.
¾ From the list of possible range settings, select
VSWR 1-6, VSWR 1-2, VSWR 1-1.5 or VSWR
1-1.1. (The ranges VSWR 1-1.5 and VSWR 1-1.1
are available only if the R&S FSH-K2 option is
installed.)
¾ Confirm your choice with the ENTER key or the
RANGE softkey.
The R&S FSH3 now shows the VSWR of the
measured cable over the cable length.
The R&S FSH3 can also list any cable faults. It displays the return loss and distance from the
measurement plane of all reflections that exceed a settable threshold.
¾ Press the LIST VIEW softkey in the Distance to
Fault menu.
The R&S FSH3 opens the threshold value entry box
and also displays the threshold as a horizontal line
across the measurement diagram.
¾ Set the threshold using the cursor keys (5 dB
steps), the rotary knob (1 dB steps) or the number
keys.
¾ Press the ENTER key or the LIST VIEW softkey
again.
The R&S FSH3 displays a table listing all the
reflections that are above the threshold sorted
according to distance from the measurement plane.
¾ To change the threshold for the table display,
press the THRESHOLD softkey and enter the new
value.
¾ Use LIST->PRINTER to output the list to a printer.
¾ To close the list and to return to the graphics
display mode, press the EXIT softkey.
1145.5973.12 4.71 E-6
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