Radiated Power Measurements - Silicon Laboratories EFR32MG12 Reference Manual

2400/169 mhz dual band 19 dbm radio board

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BRD4172B Reference Manual

RF Performance

7.2 Radiated Power Measurements

During measurements, the BRD4172B Radio Board was attached to a Wireless Starter Kit Mainboard which was supplied by USB. The

voltage supply for the Radio Board was 3.3 V. The radiated power was measured in an antenna chamber by rotating the board 360 de-

grees with horizontal and vertical reference antenna polarizations in the XY, XZ, and YZ cuts. The measurement planes are illustrated

in the figure below.

Figure 7.3. Illustration of Reference Planes with a Radio Board Plugged into the Wireless Starter Kit Mainboard

Note: The radiated measurement results presented in this document were recorded in an unlicensed antenna chamber. Also, the radi-

ated power levels may change depending on the actual application (PCB size, used antenna, and so on). Therefore, the absolute levels

and margins of the final application are recommended to be verified in a licensed EMC testhouse.

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