BladeRF-wiphy: Open-source, software defined radio modem
1–10 of 58 posts
Re: BladeRF-wiphy: Open-source, software defined radio modem
#2congratulations to the team for the hard work and dedication to taking one step closer to a truly open source ap.
but BladeRF is pushing...a thousand dollars...too rich for most :(
Re: BladeRF-wiphy: Open-source, software defined radio modem
#3congratulations to the team for the hard work and dedication to taking one step closer to a truly open source ap. but BladeRF is pushing...a thousand dollars...too rich for most :(
My very limited knowledge of SDR’s from when I was researching a project is that for a lot of use cases, the cheap ones just don’t have the bandwidth or frequency range. I ended up getting a limesdr which was enough to serve my needs, but it was still around $400 for the usb version.
Re: BladeRF-wiphy: Open-source, software defined radio modem
#4congratulations to the team for the hard work and dedication to taking one step closer to a truly open source ap. but BladeRF is pushing...a thousand dollars...too rich for most :(
https://www.nuand.com/product/bladerf-xa4/ $480 for the smallest.
And while too rich for most is one way to look at it, another is that $1K would not even buy you a proper monitor all that long ago, and that this is a very low volume production. I think the price point is actually quite impressive, I expected it to cost substantially more, especially given the BOM, there are some pretty impressive bits on there, and those connectors and PCB are also not exactly free.
Re: BladeRF-wiphy: Open-source, software defined radio modem
#5If curious see also
Re: BladeRF-wiphy: Open-source, software defined radio modem
#6congratulations to the team for the hard work and dedication to taking one step closer to a truly open source ap. but BladeRF is pushing...a thousand dollars...too rich for most :(
https://www.nuand.com/product/bladerf-xa4/ $480 for the smallest. And while too rich for most is one way to look at it, another is that $1K would not even buy you a proper monitor all that long ago, and that this is a very low volume production. I think the price point is actually quite impressive, I expected it to cost substantially more, especially given the BOM, there are some pretty impressive bits on there, and…
I do not think wiphy runs on the xA4 because the FPGA is not powerful enough. So if you want to run this project, you'll need to shell out at least $720 for the xA9. I probably will.
Re: BladeRF-wiphy: Open-source, software defined radio modem
#7Impressive project. Writing all the VHDL including the FFT and Viterbi decoder... I'm genuinely curious where the ROI on a project like comes from? Selling hardware and training materials? I'm assuming there must have been significant interest from customers, or maybe this is an ambitious employees side project?
Can't wait to see a demo or some pictures of it running.
Would love to see more details about the DSSS demod using the 20MHz rate, specifically regarding the correlation. Any references on this?
(I'm a happy owner of the x115, been looking at the 2.0 for awhile now)
Re: BladeRF-wiphy: Open-source, software defined radio modem
#8Impressive project. Writing all the VHDL including the FFT and Viterbi decoder... I'm genuinely curious where the ROI on a project like comes from? Selling hardware and training materials? I'm assuming there must have been significant interest from customers, or maybe this is an ambitious employees side project? Can't wait to see a demo or some pictures of it running. Would love to see more details about the DSSS dem…
For DSSS demod, my guess is a 20 tap match filter designed from a resampled RRC filtered barker sequence. Haven’t looked at the VHDL, but that’s how I’d do it.
Re: BladeRF-wiphy: Open-source, software defined radio modem
#9Weirdly they keep saying 802.11 but apparently it's 802.11a/g.
Re: BladeRF-wiphy: Open-source, software defined radio modem
#10Veeery impressive! Side note: By pure coincidence I spent 5-6 hours this weekend playing around with an sdr dongle and a raspberry pi (specifically sending images over fm). And I have to say, the ecosystem around sdr's is annoyingly poor on linux(unsure about other os-es but it does seem windows has it better).