Hello,
I am running ChirpStack V4.15 in a Docker container and have connected a RAK7268V2 gateway to it. The configuration is EU868 and ADR is enabled. Everything runs very smoothly except for one thing. The end device never speeds up to DR6 or DR7, even when the RSSI value is extremely good.
I tried making some changes to the 'region_eu868.toml' file that were suggested by others, but...
Can anyone provide me with a region file that enables the use of DR6 and DR7?
Please note that the default ADR algorithm does not use DR6 and DR7:
Please note that the SX130X concentrator module only supports a single channel for these data-rates, as DR6 uses a different bandwidth and DR7 uses a different modulation (FSK). You can use these data-rates, but it would force the device to use a single channel.
Please note that the default ADR algorithm does not use DR6 and DR7
Is this a limitation imposed by ChipStack? Or is there an official limitation (e.g. from the LoRaWAN Alliance) for this?
If the default ADR algorithm does not support DR6 and DR7, I thought I could enable them by editing the region_eu868.toml file.
The gateway channel is already configured there:
[[regions.gateway.channels]]
frequency=868800000
bandwidth=125000
modulation="FSK"
datarate=50000
In my opinion, limiting to one channel is acceptable in some applications. Increasing the data rate to DR7 compared to DR5 reduces time on air by a factor of 10. This saves energy and helps to comply with duty cycle restrictions.