[amsat-bb] Lora and other modes

[Ross Whenmouth]

> Date: Mon, 3 Jul 2017 10:58:27 +0530
> From: Ashhar Farhan<farhanbox at gmail.com>
>
> Is Lora a candidate for satellites? How well does it handle doppler? Given
> that it uses CSS(Chirp Spread Spectrum), it is claimed to be resilient to
> doppler shift.
>
> Does anybody have any further details or knowledge?
Hi Ashhar,

LORA is/uses a proprietary protocol, however, it has already been 
reverse-engineered by software defined radio people, so ground stations 
could potentially use an SDR instead of a LORA chipset:
https://myriadrf.org/blog/lora-modem-limesdr/

https://static1.squarespace.com/static/54cecce7e4b054df1848b5f9/t/57489e6e07eaa0105215dc6c/1464376943218/Reversing-Lora-Knight.pdf


I think that it might be interesting to try EME with an FM-chirp signal 
(one optimised for the task ie not LORA) as an alternative to JT65...


73 ZL2WRW
Ross Whenmouth