Hello, the more you get in the topic, the more questions come up… What can be done if the neighbor sends every 2 seconds in SF12 on all channels? What happens when the frequencies are full / overloaded? Can someone locate and contact someone? Is it possible to isolate a node so that it is no long…

[image] marioz: What can be done if the neighbor sends every 2 seconds in SF12 on all channels? As long as you’re not using SF12, you don’t need to worry, as other spreading factors can still be received just fine. As for your other points: see LoRaWAN duty cycle abuse . [image] marioz: S…

In my City (Freiburg in Germany) we have at least 3 LoRaWAN Networks. A private called I-NOVA by our local energy provider (Badenova) used for industrial applications with high security/availability backend, a public TTN Network also sponsored with Gateways (Lorix One) by Badenova and many other use…

[image] arjanvanb: As long as you’re not using SF12, you don’t need to worry, as other spreading factors can still be received just fine. Different SF are “almost orthogonal”, not “absolutely orthogonal”. [image] At about 19 min. 50 sec.

[image] marioz: The questions I ask myself therefore: Should a city provide connectivity for parking, garbage and more through TTN, or should it build its own network? If “more” is something more or less “life critical” then better use something other than LoRaWAN and other ISM band wireless…

[image] biermi: with high security/availability backend Not sure high availability backen can help much if you use very unrealible by design ISM band wireless connections…

[image] hobo: and other ISM band wireless technologies. with the chance that closed source companies almost go under ? imagine that… nobody can control you’re city lights :sunglasses:

[image] BoRRoZ: nobody can control you’re city lights :sunglasses: Surely. The problem is that sometime you’ll be unable to control them too.

[image] hobo: Not sure high availability backen can help much if you use very unrealible by design ISM band wireless connections… Yes it is unrealible by design but in the last 8 month, since my gateway and some nodes are running, it happens much ofter that the TTN Backend has a problem (my m…

[image] biermi: Freiburg in Germany Hello my friend, I’m from Gelsenkirchen from the Ruhr area :wink: [image] biermi: Yes it is unrealible by design but in the last 8 month, since my gateway and some nodes are running, it happens much ofter that the TTN Backend has a problem (my monitori…

Different SF are “almost orthogonal”, not “absolutely orthogonal”. Readers interested in this should refer to: “Impact of LoRa Imperfect Orthogonality: Analysis of Link-Level Performance” by Croce et. al. “On the evaluation of LoRaWAN virtual channels orthogonality for dense distributed systems…