¶ Standardised Settings for Reticulum RNodes
Reticulum doesn't stipulate a standard frequency or other LoRa settings to be used with Reticulum RNodes, so it's left to us to define our own.
¶ Just give me the settings already!
OK, OK - here they are…
- Frequency: 925.875
- Bandwidth: 250 Khz
- Spreading Factor: 9
- Coding Rate: 5
¶ Thought process behind these settings
In selecting the standard settings for us to use, two factors were considered…
- Frequency spacing away from Meshtastic (919.875mhz) and Meshcore (915.8mhz)
- We're building these networks in the same areas… and repeaters are likely to be either at the same or nearby locations - so we don't want them to conflict
- Semtech FAQ advises at least 200khz spacing between channels at 100mw, but more is better. 5,000khz is more
- Matching the Meshtastic “Medium Fast” preset for other configuration like bandwidth and spreading factor
- We're using mostly the same hardware in the same places… so the thought process here is “if Meshtastic works, then Reticulum should work too”
- We may revise this in future if we need more bandwidth… maybe
¶ Configuring in MeshChat
Something like this…
Transmit power, Port and Name can of course be your own settings. All the others need to be as above to connect!
¶ Configuration File
If you're configuring your rnode via the config file (eg. ~/.reticulum/config) - here is a snippet of the RNode config section…
[interfaces]
[[RnodeMediumFast]]
type = RNodeInterface
interface_enabled = true
port = /dev/ttyACM0
frequency = 925875000
bandwidth = 250000
txpower = 22
spreadingfactor = 9
codingrate = 5
name = RNodeyboi
selected_interface_mode = 1
configured_bitrate = None
You'll need to update /dev/ttyACM0 to your actual device serial port.
The above example is for Linux. On a Mac it will likely be /dev/tty.usbserial-0001 or similar.
On Windows it will likely be COM1 or similar - Check in Device Manager to confirm the number. (I don't have a Windows machine handy to test this… so Google might be your friend here!)
¶ Other configuration considerations
For your RNode to route packets for others (aka “mesh the mesh") you'll need to enable Transport Mode (I think…?).
At time of writing, we don't have any connections yet so we'll need to confirm this!
¶ These settings are not the best, I have a better idea!
The thought process described above is pretty much all the thought that went into the current settings!
If you know more about this, or if anything described above is wrong and you want to propose better settings – please do! No offence will be taken!
Please raise in the reticulum-general channel on Discord!