Specifications

Measurements on CW Signals R&S FSH
1145.5973.12 2.16 E-10
Please refer to the cable manufacturer's data sheet for the velocity factor (= speed of the wave in the
cable relative to the speed of light) and the attenuation of the cable per meter or per foot at the specified
frequency.
¾ Use the EXIT softkey to exit the menu for defining the cable model.
The analyzer returns to the DTF measurement menu and displays the cable used for the measurement
in the upper right-hand corner of the screen.
The R&S FSH uses the cable length to determine the optimal span for the measurement and for scaling
the x axis in DTF mode. For best results, the cable should be specified 20% to 50% longer than the
actual cable length.
¾ Press the CABLE LENGTH softkey.
The R&S FSH opens the cable length (CABLE LEN)
value entry box and displays the current length setting.
¾ Using the numeric keys, enter the cable length in
meters and terminate the entry with the ENTER key
or one of the unit keys, or
¾ Using the rotary knob (1 m steps) or the cursor keys
(10 m steps), adjust the cable length.
If the unit of length is set to Feet (via SETUP: LOCAL
SETTINGS), the entry is in feet.
The minimum cable length is 3 m. The maximum cable
length that can be set is 1000 m.
Note: Always enter the cable length before the test setup is calibrated. If it is entered afterwards,
measurement accuracy is reduced.