[amsat-bb] Lora and other modes

Ross Whenmouth ross at topwire.co.nz
Tue Jul 4 05:43:58 UTC 2017

> 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:


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...

Ross Whenmouth

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