Boost stm32wl5moc lora range

[shreyaschandran]

Hi,

 

I'm working with LoRa on STM32WL5MOC for a custom board and comparing performance with the dev board. I've measured RSSI and SNR at different distances.

- Custom board vs Dev board RSSI, SNR values are noted for reference.

How do I improve the custom board's RSSI? Are there specific design or config tweaks (like antenna matching, RF switch, etc.) to boost it? Using STM32WL5MOC reference for the custom board.

 

Any insights would help!

Thanks

[Andrew Neil]

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@shreyaschandran wrote:

How do I improve the custom board's RSSI?

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As we know nothing about your board, it's impossible to say!

You'd need to show your schematic and layout, and details of what antenna you're using.

Some good, clear photos would also help.

 

How to write your question to maximize your chances to find a solution

[shreyaschandran]

Thanks for the response. We're using the same schematic as the dev board for the custom board. We're also using a 3dB antenna for LoRa transmission.

 

Is there anything else needed to troubleshoot the RSSI issue in dev board as well?

[Andrew Neil]

At RF, the layout is critical - the schematic alone is not sufficient.

Also, please give full details of the antenna, and how it is connected.

Again, Some good, clear photos would help