Where does the RSSI and SNR belong to?

Support
1

One question:
Assuming my local node (A) can see another node (D) in a 3 hop distance, so there is another node B and C involved, A>B>C>D. On my local node i can see “rssi:-106 snr:-6.3” shown for node D.

Is this the strength of node D seen at node C? Or is it the strength of node B seen at node A?

It cannot be the strengh of node D seen at node A because i have been in a position where it is impossible to see node D.

2

Are you still using long slow? If so that 20% is most likely your mesh.

3

The RSSI and SNR values are not sent over the air in the packet, they are derived by the LoRa chip from the last packet received. So in your case it is that from B to A.

1 Like
4

All right, thanks.
And is there a chance to request the SNR from let’s say node D to node C?
Something like

meshtastic --dest ‘123456’ --get info

?
I tried that but it doesn’t work. Probably not intended but it would be useful to have that information in some cases.
It may help to decide which one of the nodes should be a router or just a client…

5

Unfortunately currently not remotely, you would have to check it at node C.

6

Is this the case for all packets that contain rssi and/or snr? I’ve been analysing my packets using a local mqtt and getting large variance on rssi & snr from packets that were sent by the same node to my node, am I missing something maybe?

snr
snr2549×814 129 KB