Bruno PY2TOZ5d ago

Thread with notes on my #meshcore experiment 🧵

Given the most recent issues with #meshtastic (uncollaborative MQTT chatters, limited number of hops, difficulty in convincing others to change device roles), I decided to give MC a try. I'll document the journey here as I go.

Show threadBruno PY2TOZ

I've tried the exact same #LoRa properties in both #meshtastic and #meshcore (BW=250, SF=11, CR=5). In my ping tests, the maximum range with Meshtastic is at least 15% longer than MeshCore. I wonder what's causing this difference.

Edit: something got loose the day I flashed the firmware. I redid all connections and now it's working exactly like Meshtastic.

Apr 10 at 7:09pmWeb
Show threadadingbatponder  ðŸ‘¾1d ago
@py2toz I am no expert but by gut instinct says that difference is well below the random error margin one would expect when taking account of antenna position and how that sensitively influences signal to noise...but then again.. maybe you are testing very strictly.
Show threadMario Vavti1d ago
@Bruno PY2TOZ how did you test?
Show threadBruno PY2TOZ1d ago
@mario I just replaced the firmware in two base stations I own, and which are 10 km apart. Haven't moved them or anything like that. The stations stopped reaching each other, and in the road, I must get significantly closer to either of them to establish a link now with my mobile node.
Show threadAlec Perkins15h ago
@py2toz same frequency (could be extra interference on one)? They may also use the radio slightly differently. The firmwares have different power curves for different boards etc. Or just a random variation that would go away with hundreds of packets?
Show threadBruno PY2TOZ15h ago
@alec I just found out the issue. Something got loose, coincidentally the same day I flashed the firmware. I redid all connections and it suddenly had the same SNR I had before with Meshtastic.
Show threadAlec Perkins11h ago
@py2toz that would do it!