GW Instek GRF-1300A - Manual (Page 104)

GRF-1300A User Manual and Teaching Materials
Experiment
contents 1. Observe frequency shift.
2. Measure port isolation and conversion gain.
3. Use the GRF-1300A to emit a 2.4GHz modulated signal.
1. Turn on the GRF-1300A and GSP-730.
2. Set up the GRF-1300A.
• Connect an RF cable from the RF/FM port in the synthesizer/FM
module to the IF In port in the Mixer module.
• Connect an RF cable from the USG (USB signal generator) output
port to the LO In port in the mixer module.
• Connect an RF cable from the RF output in the mixer module to
the RF port of the spectrum analyzer.
• Use PC software to set the USG frequency to 1520MHz.
Experiment
steps
3. Set the spectrum analyzer as follows:
• Center frequency: 2.4 GHz
• Span:FULL
• Reference level:0dBm
• Resolution bandwidth: Auto
Step1
F1 2 4
Step2
F2
Step3
F1 0
Step4 F1
4. Observe the spectrum distribution with the spectrum analyzer.
Get the spectrum distribution at the time of frequency mixing.
Measure the magnitude of each spectral line and draw it into
102