MICRONIX

Simple test of the Radio Law and IEEE on ZigBee module

System for simple test of the Radio Law and IEEE utilizing a real time spectrum analyzer

[Application]

RF transmission characteristic test of equipment with built-in antenna, which is regulated in the technical standard conformity certification and IEEE, can be easily measured combining real time spectrum analyzer MSA500 series and anechoic box. By limiting specifications or applications, it is possible to construct an inexpensive system.

The physical layer test of ZigBee is regulated in the technical standard conformity certification and IEEE802.15.4-2003.

[Solution]

Note. * MSA500 series doesn't have the modulation analysis function.

Connection example

Figure:Connection example

Example of Ch15 (2480MHz)

Photo:Reference example of CH15 (2480 MHz) Part1 Photo:Reference example of CH15 (2480 MHz) Part2 Photo:Reference example of CH15 (2480 MHz) Part3
In the measurement of "spurious radiation strength" and "limit on secondary radiated emission", a spectrum analyzer with 12.5GHz or more bandwidth is required. However, MSA500 series is utilizable if limited by third harmonic (7.4 GHz).
*Measuring frequency range of MSA558:20kHz to 8.5GHz
"EVM" and "frequency carrier error" can't be measured since the modulation analysis function isn't installed. However, it is possible to observe the raw constellation waveform of Offset-QPSK modulation.
Photo:Reference example of CH15 (2480 MHz) Part4 Photo:Reference example of CH15 (2480 MHz) Part5  
Example of "Occupied bandwidth" required by the Radio Law Example of "Spread bandwidth" required by the Radio Law  

[System configuration]

Handheld signal analyzer MSA558
Electromagnetic anechoic box / MY1530 + I/F module
Others, Antenna, cables and adapter

*MICRONIX Corporation reserves the right to make changes in design, specification and other information without prior notice.

[Products introduction]

2013/8

Download this application note (PDF)
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