Interestingly it also picked up some signals while in flight either during taking off and when coming in to land. I don't think it saw any at cruising altitude.
There was never a good enough connection for a direct message but I did see some traffic on the default channel.
Meshtastic is built on top of LoRa and is capable of amazing range, mostly line of sight. I have much to learn about this technology but the idea of having a way to communicate, either direct or via a mesh network without internet or cell phone coverage is interesting. A lot of nodes are named after the callsign of the ham that owns them.