Rohde & Schwarz FSH3 - Page 59

Measurements on CW Signals R&S FSH3
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 close the list and to return to the graphics display
mode, press the EXIT softkey.
The distance to the cable faults or the distance between any two faults can also be read out with the
marker.
¾ Press the MARKER key.
The R&S FSH3 opens the marker menu and places
the distance marker on the largest reflection. The
marker readout gives the distance of the reflection
from the measurement plane in meters and its return
loss.
¾ Change the distance marker by entering a number,
adjusting the Rotary knob (pixel by pixel) or by using
the Cursor keys (step = 10 % of the span).
For higher fault resolution, the R&S FSH3 offers a zoom function in the position of the marker. The x
axis of the display can be extended up to a span of 3 m.
¾ Press the MARKER MODE softkey.
¾ Using the rotary knob or the cursor keys, select
ZOOM ON from the menu.
¾ Confirm your selection with the ENTER key.
The entry field for the zoom factor is displayed while
the R&S FSH3 simultaneously expands the x axis by a
factor of 2.
¾ Use the Rotary knob or the Cursor keys to set the
zoom factor to the value you want.
The screenshot on the right shows that the fault of the
measured cable consists of two transitions. A coupling
of approx. 7 cm length was used to connect two
cables.
Disable the zoom function as follows:
¾ Press the MARKER MODE softkey in the MARKER menu.
¾ Using the rotary knob or the cursor keys, select ZOOM OFF from the menu.
¾ Confirm your selection by pressing the ENTER key or by pressing the MARKER MODE softkey
again.
1145.5973.12 2.18 E-6