Lora E5 module with TTN V3/TTS ?

[vincen]

@Alexander_Dvorkovyy

This is challenging. You need a good antenna. I was buying 868MHz antennas and checking them with NanoVNA. If it was not good I was asking either for return or replacement. Sellers usually wanted to send me another ones, but new antennas were not always better. So, I ended up with a bunch of antennas:

Thanks for the infos, I’m not so surprised working a lot with Wifi systems for my customers and I noticed that very often antennas specs are “very” approximate
That’s why on gw I receive next week and I’ll setup on TTN, i’m going to exchange the basic spring style antenna supplied by a 2.8dB antenna optimised for Lora 868 (my band here) so it gets best coverage possible and I’ll update it in few weeks with a 5.8dB fiberglass antenna for the same band I’ll do some coverage tests in neighborhood once fully setup with TTNMapper so I cann check how it works (hopefully well

@Alexander_Dvorkovyy

Once you get a gateway in close proximity, all of it becomes irrelevant: LoRa is really good at picking up a signal. Once I forgot to attach antenna at all and still was picking a good signal on short U.FL antenna cable. Any decent antenna will allow you to reliably send data with DR5 and lowest transmission power (if battery life is of any concern). This is at close proximity, of course. Let’s say at WiFi range or so.

yep pretty amazed already how my sensor outdoor device still gets Lora cover while out of coverage and having far of the best antenna inside The counterpart of that very good range is probably the delay it takes to receive some paquets sometimes !

@Alexander_Dvorkovyy

As of packet loss - this is inherent on LoRaWAN network. Expect 10% packet loss - this is what they say. Even at close proximity. I can confirm it. My GW is pygate from pycocom.

Thanks the info as I would have expected it that in current usage in the field but not on short coverage So no panic at first paquet not received