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Parameters affecting Thread wireless network range

Basem Barakat

Hello,

What are the parameters affecting the Thread network range other than the TX power?

I am using Micromod nRF52840 module, to test Matter Light Bulb and Matter Light Switch, but when I tried to control the light bulb by the light switch I found that the distance range between the two devices doesn't exceed 30cm and when it exceeds 30cm they lose the communication between each other and the border router, but when I tried to test the range as this blog post using Thread: CoAP Client and Thread: CoAP Server with the Micromod I found that the range was around 5m.

The TX power at the first case is 8dbm while the TX power at the second case is 0dbm, where this is confusing.

I expect that the more the TX power the more distance range.

Is there other parameters that I didn't consider in the Matter apps that may affect the network range?

Best regards,

Basem

  • +1

    Hi,

    I was facing an issue related to the Thread network range and a poor connectivity using Micromod nRF52840 when trying to test Matter Light Bulb and Matter Light Switch samples and the OTBR setup was as Matter over Thread: Configuring Border Router and controller on one device on Raspberry Pi and the RCP was Micromod, where the range was around 30cm (very short range).

    Despite of when tried to test the range as this blog post using Micromod module the range was longer (around 5m).

    Then I replaced the OTBR with another commercial border router (eero pro 6e) and retest the Matter samples using Micromod nRF52840 and I got longer range than I got from the RPi OTBR and it was around 7m.

    It seems that the issue was related to the OTBR.

    Best regards,

    Basem

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