LoRa page

[Alex Fraser]

I bought a LoRa flight system years ago.  I never used it.  Around here 
I would have had to fly over the Bay or the ocean to use the radios long 
legs.  Even flying over water in less busy areas the FAA rules prohibit 
flying over 400' or beyond line of sight. The video coming back from the 
drone was pretty good.  I suspect they used more than 10mW on the drones 
transmitter.  You can just send data from the drone radio, altitude, 
attitude, speed and heading should allow you to keep control if you 
didn't want to hand off to an on board robot pilot.

I think the commercial registered drones now being tested can legally 
fly over the horizon.  Some sort of LoRa spread spectrum might be used 
to keep them from being hacked, lets hope so.

On 10/20/2020 1:29 PM, Jacek Radzikowski wrote:
> BTW. this is a test of an RC system using LoRa modulation (no LoRaWAN 
> protocol), conducted in a mountainous region, with tx power of 10mW 
> from a small handheld radio: 51.6km
> https://www.youtube.com/watch?v=fhlbhRqN_Eg
>
> Jacek
> kw4ep
>
>
> On Tue, Oct 20, 2020 at 1:24 PM Jacek Radzikowski 
> <jacek.radzikowski at gmail.com <mailto:jacek.radzikowski at gmail.com>> wrote:
>
>     As far I know, the current terrestrial record for direct LoRaWAN
>     communication is 766km:
>     https://www.thethingsnetwork.org/article/lorawan-distance-world-record
>     When satellites are involved, the distances get much bigger (LoRa
>     modulation): 71,572km -
>     https://hackaday.com/2018/02/22/at-71572-km-you-wont-beat-this-lora-record/
>
>     Jacek
>     kw4ep
>
>
>     On Tue, Oct 20, 2020 at 1:08 PM Martin <dcmk1mr2 at gmail.com
>     <mailto:dcmk1mr2 at gmail.com>> wrote:
>
>         I have used 70 cm LORA for tracking high altitude balloons. 
>         It works great up to the 20 miles - the farthest I tested.
>
>         I use the Adafruit Feather modules
>         https://www.adafruit.com/product/3079 with the "radiohead"
>         library.
>
>         73  Martin W6MRR
>
>         On Tue, Oct 20, 2020 at 9:49 AM Alex Fraser
>         <beatnic at comcast.net <mailto:beatnic at comcast.net>> wrote:
>
>             Low power spread spectrum on the 70cm band?
>
>             Has anyone played with it?
>
>             https://www.instructables.com/Introducing-LoRa-/
>
>             70cm band SS data radio for $20?
>
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>     -- 
>     Given a choice between two theories, take the one which is funnier
>
>
>
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