mDot Does Not Join Conduit Network From Distance Of Approximately 0.5 Mile

[James Coleman]

Hello,

I am trying to make a network connection from my mDot LoRA to my Conduit which is connected to my home network which is approximately 0.5 miles away.

The mDot LoRA is using the “mDot_LoRa_Connect_Example_MTS_MDOT_F411RE.bin” example application.

While at home and near the Conduit I am able to join the network with my mDot LoRA and send the data packets without a problem.

Now that I am a significant distance away I am not able to join the network.

Are their parameters that I need to revise in order for me to join the network from a distance and send data?

Thanks,

James

[Andrew Lindsay]

What Spreading Factor and Tx power are you using? I used SP12 and a Tx power of 14. which are about the max for EU use in the 868MHz band.

Andrew

[James Coleman]

Andrew,

The spreading factor is set to 10 which appears to be the max for US in the 915MHz band. I do not see in the sample program that I am using where they set the Tx power for the LoRA radio.

Is there a way for me to modify the sample program and increase the Tx power?

James

[Brandon Bayer]

James,

If you haven’t seen this forum thread, go ahead and read through it. It has discussion on range issues and also has a test to make sure your MTAC-LORA accessory card is functioning properly.

And the mDot.h file in libmDot has documentation on all of the functions you can use (like setting the tx power).

-Brandon

• This reply was modified 8 years, 7 months ago by Brandon Bayer.

[Suryadiputra Liawatimena]

Dear all,

I have copy mDot_LoRa_Connect_Example_MTS_MDOT_F411RE.bin into F:\ (my mdot at MTU2DK-ST-MDOT development kit. I connect the dev kit through usb cable.
I have push the reset button. How to check the result?

Is there any way to read the Mosquitto_sub status with other program?

Thank you very much in advance.

Warmest Regards,
Suryadi

[Author]

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