R&S FSH Spectrum Analyzer Mode
Performing Spectrum Measurements
Operating Manual 1173.6275.12 - 30 55
3.1.3 Measuring the Occupied Bandwidth
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 percentage of the entire power of the transmitter.
Numerous standards require a occupied bandwidth of 99 %. Therefore this is the
default setting. If you need another percentage for the occupied bandwidth you can set
values from 10 % to 99.9 %.
After entering the channel bandwidth, the R&S FSH automatically selects the
measurement parameters so that you can attain the best result.
► Press the MEAS key.
► Press the "Meas Mode" softkey.
The R&S FSH opens the measurement menu.
► Select the "Occupied BW" menu item.
The R&S FSH starts to measure the occupied bandwidth.
Two vertical lines show the occupied bandwidth.
Screen layout for the occupied bandwidth
1 Standard
2 Occupied bandwidth numerical
3 Channel bandwidth
4 Power percentage
5 Occupied bandwidth graphical (blue lines)
5 Occupied bandwidth measurement softkey menu
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