R&S FSH
Measuring the occupied bandwidth
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Measuring the occupied bandwidth
Ensuring the proper operation of a transmission network requires that all transmitters adhere to the
bandwidths assigned to them. The occupied bandwidth is defined as the bandwidth that contains a
specified percent of the entire power of the transmitter. In the R&S FSH, the power percent can be set
between 10 % and 99.9 %. Numerous standards require a percent of 99 %, which corresponds to the
default setting of the R&S FSH.
One of the measurement functions of the R&S FSH is the measurement of occupied bandwidth. After
the channel bandwidth has been entered, the R&S FSH automatically selects the measurement
parameters so that an optimal result is attained.
Operation:
Press the MEAS key.
Press the MEASURE softkey.
The R&S FSH will open the measurement function
menu.
Using the rotary knob or the cursor keys, select
OCCUPIED BW from the menu (highlighted in
red).
Confirm your selection with the ENTER key or the
MEASURE softkey.
The R&S FSH displays the softkey menu for setting the measurement of occupied bandwidth. Two
vertical lines in the measurement diagram indicate the occupied bandwidth. The measured numeric
value (OBW) is shown in large characters below the measurement diagram.
Channel bandwidth
Occupied bandwidth
Standard
Occupied
bandwidth
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