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regarding the distance for the bluetooth range for scan and advertisement for nrf52840

liuluan1984

Hi Nordic,

I am using the two nrf52840 units to test adv and scanning in a pair for the development. I am using BLE_GAP_PHY_CODED for both scan and advertisement. But when I test it, seems the package lost get very high when distance is longer than 70 meters. Any way to improve it? Also, is it possible to use the antenna signal amplifer for improve the receiving and advertisement distance?

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  • +1

    I assume you're aware that the Raytac module does not have an LF crystal by default? Have you added an external LF crystal to your custom board, or are you using the internal RC oscillator as your LF clock? Incorrect placement of this crystal might cause interference to the radio and decrease the radio's range somewhat.

    Also what are the advertising interval set to in your application?

    Best regards,

    Simon

Reply
  • +1

    I assume you're aware that the Raytac module does not have an LF crystal by default? Have you added an external LF crystal to your custom board, or are you using the internal RC oscillator as your LF clock? Incorrect placement of this crystal might cause interference to the radio and decrease the radio's range somewhat.

    Also what are the advertising interval set to in your application?

    Best regards,

    Simon

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