Measuring the occupied bandwidth R&S FSH
1309.6275.12 4.44 E-2
Press the LEVEL ADJUST softkey.
The R&S FSH starts the measurement of the optimal
reference level using a resolution bandwidth of 3 MHz,
a video bandwidth of 3 MHz and the peak detector.
While the measurement is in progress, the R&S FSH
measurement, please wait... ".
The optimal reference level is then set.
Setting the channel bandwidth
The channel bandwidth determines the span, resolution bandwidth and sweep time the R&S FSH uses
for measuring the occupied bandwidth.
Press the CHANNEL BW softkey.
An entry box showing the current channel bandwidth
setting opens.
Using the numeric keys, enter a new channel
bandwidth and terminate the entry with the
appropriate unit; or
Change the channel bandwidth with the rotary
knob or the cursor keys and terminate the entry
with the ENTER key or the CHANNEL BW softkey.
The R&S FSH automatically adapts the span to the
channel bandwidth that has been entered (span = 5 x
channel bandwidth) to ensure that no incorrect
measurements of occupied bandwidth are made. The
minimum channel bandwidth that can be set is 2 kHz.
If you attempt to enter a smaller channel bandwidth,
the R&S FSH will automatically set 2 kHz.
Entering the power percent to determine the occupied bandwidth
Press the % POWER BW softkey.
The R&S FSH will open a field for entering the power
percent relative to the total span power which defines
the occupied bandwidth (percent of total power). The
R&S FSH displays the value currently set.
Using the rotary knob or the cursor keys, change
the percent value, or enter a value using the
numeric keys, and confirm the entry with the
ENTER key or the % POWER BW softkey.
The R&S FSH will now display the occupied bandwidth
of the specified percent of the total power.
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