Setting and Using the Measurement Functions R&S FSH3
Measuring the occupied bandwidth
Ensuring the proper operation of a transmission network requires that all transmitters adhere to the
bandwidths assigned to them. This is checked by measuring the occupied bandwidth, which is defined
as the bandwidth in which a specified percent (99 %) of power is transmitted.
One of the measurement functions of the R&S FSH3 is the measurement of occupied bandwidth. After
the channel bandwidth has been entered, the R&S FSH3 automatically selects the measurement
parameters so that an optimal result is attained.
Operating sequence:
¾ Press the MEAS key.
¾ Press the MEASURE softkey.
The R&S FSH3 opens the menu containing the
measurement functions.
¾ Using the rotary knob or the cursor, select
OCCUPIED BW from the menu (highlighted in
red).
¾ Confirm your selection with the ENTER key or the
MEASURE softkey.
The R&S FSH3 displays the softkey menu for setting the measurement of occupied bandwidth. Two
vertical lines in the measurement diagram indicate the occupied bandwidth. The measured numerical
value (OBW) is shown in large characters below the measurement diagram.
Channel bandwidth
Occupied bandwidth
Occupied
bandwidth
Standard
1145.5973.12 4.40 E-6
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