41–50 of 140 posts
ExpressLRS has taken everything by storm, partly because it's a well-governed open source project, and it manages to innovate many times faster than the old companies manage to fix bugs in their own products.
Earlier quoted context omitted.
You're looking LoRaWan which is not the same as LoRa. In fact I believe web browsing to be quite feasible if you just use LoRa with your own network stack.
How would that exactly work?
For some reason, I don't find LoRaWan at all alluring. As far as I can tell, in the end it's in the hands of one company and that really defeats the spirit for me. I mostly just use LoRa for point-to-point connections with my own shitty networking stack.
However sometimes you can get Troposheric propagation on these high frequency bands. This used to be common when I was a teenager living in the south of England in Kent and we could occasionally receive racy TV channels from Europe.
https://en.wikipedia.org/wiki/Tropospheric_propagation
From wikipedia:
> Tropospheric propagated signals travel in the part of the atmosphere adjacent to the surface and extending to some 25,000 feet (8 km). Such signals are thus directly affected by weather conditions extending over some hundreds of miles. During very settled, warm anticyclonic weather (i.e., high pressure), usually weak signals from distant transmitters improve in strength.
Radio Amateurs love this kind of propagation. It is very variable, doesn't last long, but can give you contacts over great distances on frequencies which are usually line of sight. I think the record for radio amateurs on the 70 cm band (430-440 MHz) is over 4,500 km!
How does this work? At this distance you need a 130km-high tower for line of sight due to earth’s curvature. The previous record was set on a balloon flying at 38km height. LoRa uses high frequencies so shouldn’t benefit from the ground effect?
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Ah thanks for the education. I updated my profile. Will try to gain more karma to gain more respect.
That's not what the karma mention was about, it basically means that you are not likely to be known here, that's all. But fair enough, thanks for the profile update.
How does this work? At this distance you need a 130km-high tower for line of sight due to earth’s curvature. The previous record was set on a balloon flying at 38km height. LoRa uses high frequencies so shouldn’t benefit from the ground effect?
probably the same amateur radio people can connect to people halfway across the globe; bouncing off an atmospheric layer.
Earlier quoted context omitted.
Ah thanks for the education. I updated my profile. Will try to gain more karma to gain more respect.
That's not what the karma mention was about, it basically means that you are not likely to be known here, that's all. But fair enough, thanks for the profile update.
Yeah... But WiFi doesn't work when I'm sitting on the toilet two rooms down the corridor. Crazy times. No, to be honest: Very impressive. It's kind of a "dream" of me, to bring Internet to the river/picknick area two kilometers away from me. LoRa would probably be the way to go, will have to look further into that.
LoRa has pretty strict limits on how often you may use the frequency. That severely limits use cases. Browsing the internet is completely unfeasible.
Nice, but don't forget that LoRa® LoRaWAN® and The Things Network® is all proprietary and patented stuff. The article is advertising.
There isn't any opensource modulation scheme that comes even close to LoRa.
LoRa runs in the 868 MHz band (in Europe) - a frequency range known for being line of sight only as the ionosphere doesn't reflect radio waves of that high frequency. However sometimes you can get Troposheric propagation on these high frequency bands. This used to be common when I was a teenager living in the south of England in Kent and we could occasionally receive racy TV channels from Europe. https://en.wikipedia…