Measurement of BS-CS converter output by signal analyzer

The method of measuring the output of BS/CS converter using handheld real time signal analyzer will be introduced.

Application

Connection block diagram

Solution

• The satellite signal of 12GHz band is converted to IF frequency from 1.5 to 2GHz by BS · CS antenna / converter.
• Bias Tee will convert the impedance from 50Ω at spectrum analyzer side to 75Ω at antenna side, and also supply the power to BS/CS converter.
• Bias Tee is supply the power from the external. The polarization plane of the antenna can be changed by switching the voltage of 11/15V.

• The time response of frequency and power can be observed using the spectrogram function of signal analyzer.
  
• Similarly, the temporal variation of power and phase will be observed using the time domain function. The figure below shows the time response of power.
  

System configuration

Spectrum Analyzer[MSA538]	x 1
Bias Tee [PD264]	x 1
DC power supply 11/15V	x 1
Cables	x 1

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