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New LoRa RF distance record

thethingsnetwork.org

111–120 of 140 posts

Re: New LoRa RF distance record

#111

Nice, but don't forget that LoRa® LoRaWAN® and The Things Network® is all proprietary and patented stuff. The article is advertising.

You can get a LoRa transmitter/receiver for like $5 and setup your own network. Documentation and datasheets are freely available. They are really not printing money with that technology. There isn't any opensource modulation scheme that comes even close to LoRa.

So it takes more than 5 dollars. You also need a gateway but you can get these for 99 dollars. Still this technology has a very low barrier to entry for such a long range and low power capability.

Re: New LoRa RF distance record

#112

CTO & co-founder of The Things Network here! I've been working with LoRa for over eight years now, and I keep getting surprised by measurements like this. What started off as "line of sight works" went to a successful "LoRa moon bounce" [0] and now a sea level reception over 830 miles. So, any physics people here care to comment how this works? Is this pure atmospheric refraction or is there something else? [0] https…

Hi. Cool work. For this particular record, could you confirm that this was on 868MHz?

Yes, this was 868MHz

Re: New LoRa RF distance record

#113
post #94

CTO & co-founder of The Things Network here! I've been working with LoRa for over eight years now, and I keep getting surprised by measurements like this. What started off as "line of sight works" went to a successful "LoRa moon bounce" [0] and now a sea level reception over 830 miles. So, any physics people here care to comment how this works? Is this pure atmospheric refraction or is there something else? [0] https…

To some extent it's statistics. Send enough messages and the odds are one will eventually get though. > providing a standardized and objective measure of the technology's capabilities Not really. The environment is still variable. A short message could have bounced off some random short duration reflector somewhere (aeroplane, meteor, lightning, ...) or have been refracted by some short term effect. Standardised and…

Yes, this is an outlier and it took around 8 years for this to be emerge and be detected by the community run TTN mapper initiative. The main fun thing about this is more that it shows how cool it is to have a global community network where we enjoy sending messages for the sake of it just to learn technology. Like kids with 2 cans and a string between them.

Re: New LoRa RF distance record

#115

So I know LoRA: Low-Rank Adaptation of Large Language Models and Using LoRA for Efficient Stable Diffusion Fine-Tuning. But from the text, I don't think this is about it? It seems it's this: https://en.wikipedia.org/wiki/LoRa

That's right. Microsoft must have used Bing to see if the name was taken, and got no results, when they named their thing LoRA.

The added this line to their LoRA Github though: "(For the radio communication technique, see LoRa.)"

Re: New LoRa RF distance record

#116

There is never any mention of bitrate when talking about LoRa. It's infuriating from someone on the outside. From what I gather, the map says a "SF:12" which means a spread factor of 12, at a bandwidth of 125khz. With a code rate of '1' according to https://www.rfwireless-world.com/calculators/LoRa-Data-Rate-... this means about 292 bits-per-second transmission rate for the packet. But I'm unsure if this is correct.…

You can do a lot with 292 bits per second if you use it well.

Yeah we now support 1.5M devices with our community network and enterprise network. And the most successful ones sent the least amount of data. Here is a list of all the supported devices: https://www.thethingsnetwork.org/device-repository/

Re: New LoRa RF distance record

#118
post #110

Earlier quoted context omitted.

Please don't astroturf a corporate driven "developer community" > marketing bodies There you go.

What is astroturf? If I Google it I see fake grass.

A "grassroots" initiative comes from the people. "Astroturf" is commercial or political interests that masquerade as grassroots.

Re: New LoRa RF distance record

#119

Earlier quoted context omitted.

> Or just you know, use the 4G that is probably there already. Yeah... Projects like open WiFi are probably becoming less and less useful, as everybody is carrying 4G/5G modems in their pocket.

At some point I was bullish on LoRA + Gemini or scruttlebutts. A different, low resolution internet basically. But LoRA is too slow for a lot of things. Too. Still nice.

In the end, our butts remained unscruttled.
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