Spectrum Analyzer Mode
R&S
®
Spectrum Rider FPH
121
User Manual 1321.1011.02 ─ 06.00
2. Select the "Power Display" softkey.
The R&S Spectrum Rider opens a submenu to select channel power measurement
mode.
3. Select the "Max Hold" menu item.
The power display (see item 2 of
) switches from [Power] to "Max
Power".
If you want to deactivate the "Max Hold" function and return to the normal power
display, activate "Clear/Write".
4. To deactivate the "Max Hold" function, press the "Power Display" softkey.
5. Select the "Clear/Write" menu item.
The power display returns to "Power" display.
6.1.2.6
Unit for Power Display
The R&S Spectrum Rider can apply different units to the power output. The default unit
is dBm.
1. Press the [MEAS] key.
2. Select the "Power Unit" softkey.
The R&S Spectrum Rider opens a submenu to select the power unit.
3. Select the unit you require from the submenu.
The R&S Spectrum Rider displays the power level in the selected unit.
6.1.3
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 an occupied bandwidth of 99 which is also the default set-
ting. 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 Spectrum Rider automatically selects
the measurement parameters so that you can attain the best result.
1. Press the [MEAS] key.
2. Select the "Meas Mode" softkey.
3. The R&S Spectrum Rider opens a submenu to select the measurement mode.
4. Select the "Occupied BW" menu item.
The R&S Spectrum Rider starts to measure the occupied bandwidth.
Two vertical lines show the occupied bandwidth.
Performing Spectrum Measurements
