Measurement of 920MHz band wireless module can be easily performed by the signal analyzer.


Connection block diagram
Figure:Connection block diagram


Attach the sleeve antenna M401 to MSA538, and the signal of the wireless module under communication can be measured.

  • The duration of transmission can be measured by the dual view analysis of “Power vs time” and “Spectrogram”.
    In a example below;
    Down link:23.2 ms | Up link:24.8 ms | Interval:2.0 ms
  • The measurement of frequency variation of GFSK signal can be performed by switching the main screen to “Frequency vs time”.
    In a example below;
    Transition frequency : +/-40 kHz | Symbol rate : 9600 bps

System configuration

Spectrum Analyzer[MSA538] x 1
Lithium-ion battery [MB400] x 1
Sleeve antenna[M401] x 1

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