AetherSDR — Open-Source Linux Client for Flex Radios

WX7Y · April 11

UPDATE: the Linux Version of AetherSDR 0.8.9 and 0.8.9.1 Audio are broken here for WSJTX so stay with 0.8.8 for now.

0.8.9.1 was supposed to fix the Audio issues but I don't think the fix got saved as 0.8.9.1 and is actually the broken 0.8.9

FredKrause · April 11

Hey Jeremy, great work on AetherSDR — this has been a long time coming for the Linux community.

Noticed you added a CW decoder for giggles in v0.4.13. I've been working on something that might be
worth a look before you go too far down that road. It's called OpenSkimmer — an open source Linux CW
skimmer I've been building with Claude as a co-developer (looks like we had the same idea there).

Quick tour:

- Full 192kHz band coverage via a polyphase filter bank channelizer — monitors every CW signal in the
band simultaneously, not just the active slice
- Three-decoder ensemble: uhsdr_cw (Goertzel, same core SkimSrv uses), libbmorse.so (Bayesian trellis,
AG1LE's decoder), all in C++
- Scores 56/67 on a dense CWT contest pileup benchmark — lightyears ahead of anything else available on
Linux open source
- GPLv3, so the licensing lines up perfectly with AetherSDR

The IQ stream from the Flex via VITA-49 is exactly what the channelizer eats, so integration into
AetherSDR would be fairly natural. What ggmorse gives you is a solid single-slice decoder — what this
adds is full-band skimming, which is a different beast entirely for contest and DX work.

Still actively developing but it's in good shape. Happy to connect and share more if you're interested.

73, Fred WF8Z

roberval · April 13

I’d like to take a moment to sincerely thank everyone involved in the development of AetherSDR. Your work and dedication truly show in the quality of this project.

I’m currently running the client on a MacBook Pro M4, and it’s been working flawlessly. The performance, stability, and overall user experience are outstanding.

Projects like this make a real difference for the SDR community, and it’s clear a lot of passion and expertise went into making it what it is today. Thank you all for your efforts and for continuing to push things forward.

73, Roberval PS7TI

Scott Lewis · April 16

Have been using it with my FR8600/TGXL/PGXL/AG8x2 running Windows 11 pro, since version 0.8.1, now on .0.8.15.1. The software has come a long, long way in just a few versions. I have not opened FR Smart SDR in over a week now, except for testing issues found on ASDR. The nice thing is, if you are kind (don't be demanding it's free software, you did not pay for it "FREE"), and submit a bug report, it is generally fixed the next morning. Big shout-out to the team working on ADSR.

Trucker · April 19

There's a new update for AetherSDR out this evening. Version 0.8.16. Tested on Windows 11 and working great. Tested on my old,AMD Athlon mini-desktop (5350 processor) running CachyOS Linux. Basic noise reduction features work well. But, with the low power cpu ,I have problems with the add on noise reduction features, NR4 and DFNR. Those two will bring the AMD Athlon processor to a crawl with nearly 100% usage on all four cores. I will have to find something a little newer with more horsepower if I want to use all of the features in AetherSDR in Linux.

James

WD5GWY

John K3MA · April 19

The good news is you have a large selection of mini computers with high performance cpu's available to select from these days. The bad news is you would have gotten the same mini computer for less money 9 months ago, before the memory pricing craziness. For example I purchased a i9-13900HK with 14 cores/20 threads 64GB/2TB for $599 10 months ago. Today, the same mini PC with half the memory and SSD storage is $799. This particular Mini PC runs AetherSDR 0.8.16 with less than 10% max CPU loading as a guide for you.

Trucker · April 19

I usually buy from a local computer shop that sells refurbished Dell desktop lease returns. Some have really good specs and at low prices. My main desktop is an i7 Dell with 4 cores /8 virtual cores, that runs at 3.2Ghz and 16Gb ram. It cruises along just fine with AetherSDR in Windows 11. And I only paid $200 for it with a keyboard, mouse and monitor. Not the latest and greatest. But, plenty powerful enough for AetherSDR.

I have considered the mini desktop computers on Amazon. But, I like the option to add a better video card if I want. Since I am not a gamer, that hasn't happened.

James

WD5GWY

AetherSDR — Open-Source Linux Client for Flex Radios

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