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Figure 8: LoRa Antenna
Figure 9: BLE Antenna
You need to ensure that the antenna is properly connected to have a good LoRa signal. Do not power the module
without an antenna connected to the IPEX connector to avoid damage to the RF section of the chip.
RAK4631 has a label on its sticker where to connect the antennas, as shown in Figure 10.
Figure 10: RAK4631 Antenna Label
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NOTE
Detailed information about the RAK4631 BLE and LoRa antenna can be found on the antenna datasheet
.
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WARNING
When using the LoRa or Bluetooth Low Energy transceivers, make sure that an antenna is always
connected. Using these transceivers without an antenna can damage the system. Make sure to fix the
module with the screws to ensure a proper function.
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