Faster upload speeds

[Flamabalistic]

I've been quite keen on using LoRaWAN for the past few months, and I've been making my own sensors and integrating them with more mainstream products. For my new project, I'm using an MKR WAN 1310 to transmit quite a large amount of data quickly. It should theoretically be possible to reach 1560B/s, however the maximum I've gotten while testing is 12.8B/s

• Source - LoRaWAN spreading factor and data rate in Australia - https://www.rfwireless-world.com/Terminology/LoRaWAN-Spreading-factor-Range-and-Data-Rate.html

To test, I've been trying to upload a packet of 64 Bytes once every 10 seconds. Then seeing how many go through

I've tried:

• Increasing the data rate - This seems to have no effect on upload speeds. (I saw another post saying to enable ADR before setting this var, then set it again before each transmission, but that didn't help either)
• Increasing packet size - Errors occur above 64 Bytes (-5 from modem.endPacket())
• Reducing spreading factor - There seems to not be any method of doing this, other than indirectly via changing the data rate

Is there something I'm missing? Or is the MKR WAN 1310 not built for these sorts of speeds.

Thanks, Xavier

[Flamabalistic]

I figured out my problem!

Not sure why, but only DR6 works reliably for me. If you're running into similar problems, the below code snippet should help. I'm still getting significantly lower than the 1.5kB/s shown, but it's enough for what I need.

modem.setADR(true); // true - disables ADR (automatic data rate) | false - enables it
modem.dataRate(6);