Hi Peter,
It doesn’t use AFSK like on 2m, it uses a digital modulation technique called CSS (Chirp Spread Soectrum) that spreads the signal over 125KHz bandwidth . See Chirp spread spectrum - Wikipedia
As we discussed on the air today, your best option to install a LoRa iGate is to buy a Lilygo 433MHz Lora module from AliExpress and then configure it for your callsign. It’s a bit fiddly to do, but if you need any help feel free to give a call - e-mail is on qrz.com
Regards
Dave
Here’s some piccies of the LoRA tracker mounted on top of the DD tarps pyramid tent - on top of GW/NW-012
Thanks for the update Dave. That’s 28km with that little rubber duck antenna you get with the board. I wonder what the range would be with a decent whip.
I will stick with the current settings until standards for LoRa APRS emerge.
If you are interested in a 3D printed case for the tracker Robert G0PEB arranged for ebay seller chrisgcj to print some custom ones. He sells a box for the smaller ESP32 LoRa board (without GPS), which I use as the igate, as standard. My Sondy Go ESP32 LoRa32 V2.1 Case | eBay
I will message him today to suggest that he adds the T-Beam board to his standard items as there might be some demand from SOTA people.
LoRa APRS coverage of the IoW hills is good thanks to Robert’s (G0PEB) efforts.
73 John GW4BVE
See the very first post of this thread: 231 km with 100 mW using a short dual band mobile antenna on the car window mount clip.
Your mileage may vary 
Pleased with 28km on 100mW. I’m back in Wales at the end of the month, so will get a case printed off and find a better antenna. It’ll be interesting to see if it picks me up on Arening Fach, Snowdon and Aran Fawddwy.
73 Dave
Fantasic Dave. Those will be really good tests.
The T-Beam box is now up on Ebay. He didn’t put it up as he thought there was a copyright problem but that is now sorted. This is the link:
73 John GW4BVE
Wow Stewart, that is a super rugged box.
73 John GW4BVE
That looks robust! Can you share the cad files ? I have a design for the none-GPS version (that I use for my iGate); happy to share the design for that.
It looks great and sturdy!
Is the 3D model available ?
I found mine on Thingiverse 4677388 - various options available for shrouded antenna too.
Hi Stewart
What LoRa parameters are you using down there in Cheltenham for APRS. B/W? Speading factor? Coding rate?
There doesn’t seem to be a standard yet?
73 John GW4BVE
My LoRa boards arrived yesterday.
I’ve compiled and uploaded the code for the APRS igate, and uploaded the settings file.
However it doesn’t want to connect to my WiFi, even though the details are in the configuration file andive tried DHCP and static IP.
I’m also getting a seperate error with the beacon data which gets sent to APRS-IS.
Did anyone else have these teething problems when setting up a receiver?
UPDATE: All up and running. A fresh set of eyes spotted a typo in the WiFi ssid!
Hi Peter,
Did you upload the code (bottom tick) and the json file (Alien icon on the left menu bar) ? It should display your callsign when all is well.
Dave
Hi Dave, yes I compiled and uploaded the code to both the iGate and the tracker, and I uploaded the settings file. Both are working fine now.
That’s good news Peter. Will it be operational this weekend ? Wx permitting, I’m planning on activating Y Garn and Glyder Fawr Saturday, so will bring the LoRA tracker with me.
Regards
Dave
It’s operational now, connected to the attic antenna.
I can sometimes receive those summits on 2 m, sometimes not so we’ll have to see how it goes.
I’ll bring both Peter - M0JKS-13 (144.8MHz FSK) and M0JKS-15 (439.9125MHz LoRA).
Dave
Hi Peter. I was N of Oswestry today and you gated a couple of positions from my tracker (GW4BVE-3) which was using the little rubber duck inside the car.
73 John GW4BVE
Glad it works!
