GW Instek GRF-1300A - Manual (Page 38)

GRF-1300A User Manual and Teaching Materials
Experiment 2: Measuring a Baseband Waveform
Relevant
information Relative to oscilloscopes, spectrum analyzers have many
outstanding advantages. They are also the primary measurement
tool for measuring frequency domain data. Learning how to use
a spectrum analyzer is an essential skill that every student must
master to gain RF knowledge.
By measuring a baseband signal, this experiment allows
students to comprehensively understand how to operate a
spectrum analyzer and lays the foundation for subsequent
experiments.
Item Equipment Quantity Note
1 Spectrum analyzer 1 GSP-730
2
RF & Communication
Trainer
1 GRF-1300A
3 RF wire 1 800mm
4 Adapter 1 N-SMA
Experiment
goals 1. Measurement and analysis on a basic signal.
2. To understand how to use the GRF-1300A system to output a
baseband signal.
Experiment
principles Set the GRF-1300A to output a 1MHz sine waveform and
use the GSP-730 to measure its spectrum. The working principle
of a spectrum analyzer has been introduced in a previous
chapter. We won’t repeat it here.
Experiment
contents Set and then measure the spectrum of a 1MHz sine wave.
Measure the harmonic ratio at each of the harmonic frequencies.
Experiment
steps 1. Turn on the GRF-1300A and the GSP-730.
2. Set the GRF-1300A baseband as follows:
• Waveform: Sine wave
• Frequency: 1MHz.
• Turn the amplitude knob clockwise to its end.
Step1
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