LoRa Demodulation - Page 1
Forum section: electronics / testgear

author: tautech
author_rank: Super Contributor
timestamp: June 19, 2025, 08:10:49 am
content: Yes I searched and came up with a single hit:https://www.eevblog.com/forum/projects/square-wave-filtering-question!/msg3201104/#msg3201104What systems do ppl use for LoRa demod and error checking ?

author: BILLPOD
author_rank: Frequent Contributor
timestamp: June 19, 2025, 06:48:38 pm
content: Good Morning Tautech, Go here:https://dl.acm.org/doi/10.1145/3546869

author: tautech
author_rank: Super Contributor
timestamp: June 19, 2025, 08:39:47 pm
content: Quote from: BILLPOD on June 19, 2025, 06:48:38 pmThank you, certainly one of the better documents found thus far.Ideally we're looking for a HW solution that can be used in the field to troubleshoot small LoRaLAN installations covering a few km2.

author: tszaboo
author_rank: Super Contributor
timestamp: June 19, 2025, 08:48:38 pm
content: Quote from: tautech on June 19, 2025, 08:10:49 amYou don't use systems. You buy a chip from Semtec. It's a walled garden.If you want something similar, there are many alternatives.I honestly not sure how did Lora get such a good marketing with all the buzz around it, when it's overpriced and proprietary.

author: tautech
author_rank: Super Contributor
timestamp: June 19, 2025, 09:20:31 pm
content: Quote from: tszaboo on June 19, 2025, 08:48:38 pmCurrently.No garden is walled forever and plenty of analyzers offer demodulation but seemingly few or even none for LoRa.

author: david300m
author_rank: Newbie
timestamp: June 20, 2025, 03:11:42 am
content: Adeunis Field Test Devicehttps://www.saelig.com/product/lorawan-915.htmThis?RegardsDavid

author: tautech
author_rank: Super Contributor
timestamp: June 20, 2025, 04:49:55 am
content: Quote from: david300m on June 20, 2025, 03:11:42 amThanks but:Frequencies :902-928MHzMight rule it out for the requirement.IIRC ~860 MHz is what is used for this application.

author: TheDefpom
author_rank: Frequent Contributor
timestamp: June 20, 2025, 05:47:08 am
content: What are you trying to check for Rob ?I have some limited experience with LoRo as I built networks for use in the bus at events, pretty much plug and play but there is a configuration software which lets you set various parameters, it really depends on which modules you are using, there are ones you manually setup using serial on arduino etc. or there or things like the E32 (or similar) which I have been using, which are simpler to get working, but with limitations.

author: tszaboo
author_rank: Super Contributor
timestamp: June 20, 2025, 08:37:18 am
content: Quote from: tautech on June 19, 2025, 09:20:31 pmThey own the IP, the brand. Everyone needs to license itand they don't release specifications for third parties.

author: pdenisowski
author_rank: Super Contributor
timestamp: June 20, 2025, 12:15:50 pm
content: No portable (i.e. battery-powered) demodulation solutions, but we have a very nice educational note on LoRa testing (primarily RF testing)https://scdn.rohde-schwarz.com/ur/pws/dl_downloads/dl_application/application_notes/1ma295/1MA295_2e_LoRa.pdf

author: m98
author_rank: Frequent Contributor
timestamp: June 21, 2025, 02:18:01 pm
content: Just use an SDR of your choice with this:https://github.com/tapparelj/gr-lora_sdr