Rigol DSA1000 Series User Manual

Measurement Examples RIGOL
User’s Guide for DSA1000 Series
3-11
3.5 Measuring the N dB Bandwidth
In the example below, we use a generator (such as RIGOL DG3101A) to output a
sine signal with 100 MHz and -10 dBm as the signal under measure.
Procedures:
1. Device attachment
Connect the output terminal of the generator to the RF INPUT 50Ω terminal on
the front panel of the analyzer.
2. Use the N dB bandwidth measurement function
(1) Reset the analyzer
－Press Preset
(2) Set the parameters
－Press FREQ
－Press Center Freq and enter 100 MHz.
－Press SPAN
－Press Span and enter 2 MHz.
(3) Use the N dB bandwidth measurement function
－Press Marker Fctn
A marker will be activated if no Marker has been turned on before.
－Press N dB BW and enter 3 dB.
3. Measurement result
From the active area shown below, we can see that the bandwidth of the two
points where the signal degrees 3 dB from the current marker is 303.333 kHz.

Rigol DSA1000 Series Specifications

General

Brand	Rigol
Model	DSA1000 Series
Category	Measuring Instruments
Language	English