1. Introduction
The EFR32 Mighty Gecko Radio Boards provide a development platform (together with the Wireless Starter Kit Mainboard) for the
Silicon Labs EFR32 Mighty Gecko Wireless System-on-Chips and serve as reference designs for the matching networks of the RF in-
terfaces.
The BRD4172B Radio Board supports dual-band operation with its integrated sub-GHz ISM band and 2.4 GHz band transceivers. The
sub-GHz section is designed to operate in the European ETSI 169.4-169.475 MHz band with an external whip antenna; the 2.4 GHz
section is designed to operate at the 2400-2483.5 MHz band with the on-board printed antenna. The matching networks are optimized
for operating at 19 dBm output power.
To develop and/or evaluate the EFR32 Mighty Gecko, the BRD4172B Radio Board can be connected to the Wireless Starter Kit Main-
board to get access to display, buttons, and additional features from Expansion Boards, and also to evaluate the performance of the RF
interfaces.
BRD4172B Reference Manual
Introduction
silabs.com
| Building a more connected world.
Rev. 1.00 | 4
