ST STM32WBA65I-DK1 User Manual page 22

7.3 Radio output configuration
• By default, the board is configured with R2 ON and R3 OFF to use the PCB antenna.
• The configuration using the SMA antenna is R2 OFF and R3 ON. The user must assemble the SMA
connector, which is not present by default.
Printed circuit antenna
UM3462 - Rev 1
Figure 20. Antenna elements on MCU RF board
R2
UM3462
Hardware layout and configuration
SMA connector
R3
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