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#sdr

4 posts4 participants0 posts today

Lots of new feeds in many countries the last few days!

Thanks to the most wonderful people in the world, we now have coverage of mystery galley fluids, broken coffee makers and lavs that won't flush in:

Barvaria, Germany
Winterthur, Switzerland
Dornbirn, Austria
Bangkok, Thailand
Saint-Nazaire, France

Thanks to all these feeders - if you'd like to feed the drama machine, check out acarsdrama.com for info!

acarsdrama.comACARS Drama
More from ACARS Drama
#acars#vdlm2#avgeek

Zero Retries 0209 -
zeroretries.org/p/zero-retries

* VARA FM - 12.5 kHz Bandwidth Versus 25 kHz Bandwidth
* Jim Boddie NG2J - Silent Keyboard
* ADRCS Press Release re: IP400
* SARC Communicator, 7/8 2025
* Radio Module 2 and DreamHAT+
* HydraSDR RFOne
* My Portable Packet Radio Test Box (video)
* OpenWrt ampr-ripd package
* Seeed Studios reRouter

Zero Retries is an independent Amateur Radio newsletter.
#hamradio #HydraSDR #sdr

Zero Retries · Zero Retries 0209By Steve Stroh N8GNJ

Just got my RTL-SDR and started messing around with it.

Of course, local radio in North Carolina is mostly religious fundamentalism and car sales.

Gotta search for the emergency service frequencies.

🚀 HydraSDR RFOne Host Tools are now fully open source!
✅ Cross-platform support (Windows/Linux/MacOS)
✅ Shared libraries + DLL included
✅ Complete documentation & build instructions
📖 Docs: github.com/hydrasdr/rfone_host
💻 Code: github.com/hydrasdr/rfone_host
More to come on 02 July 2025 17:00 (UTC/GMT+2 France) with open source firmware ...
For more details follow the countdown on hydrasdr.com

Radio Software

I use Zello to link audio received on multiple SDR radios at home to my phone when I'm out and about.

Channels on the SDRs are fed via virtual audio cables to the Voicemeeter audio mixer, which has a remote macro addon which I use to prioritise some channels over others by having one channel mute others if they're active together. The mixer output is fed to Zello and Zello uses "vox" mode to key the "transmitter".

On 25th June Zello pulled support for the older free Zello PC app I used, and the service stopped working. Thank fully there's a workaround, as Zello are continuing free use for Friends and Family using the mobile app.

By running Zello mobile on the Bluestacks Android emulator in Windows, I can continue to use the facility. Happy days!

#zello
#sdr

Continued thread

If I don't plan to actually listen to anything (rare), I just leave the speakers powered off. But it's annoying.

If I use #SparkSDR, it handles both the radio and the decoding and spot reporting so it's a non-issue, but the waterfall and spectrum display don't work properly in FT8 so it's hard to tell what's happening.

Longer term, I need to just move the radio to the server and access it remotely. But there are antenna considerations for the #SDR.

My previous intro post was a few years old, so behold, new intro post:

Mike. Live in the Seattle area having grown up in the UK as a full blown British. Have a wife (incredible), child (boy), and three dogs (golden retriver/cream retriver/fuck knows).

I work in information security, something I have done for about 20 years. By day I run corporate security, enterprise IT and various other bits and pieces for an EV charging startup. I am big into EV's and currently drive one that is not a Tesla. I want an electric motorbike, so if anyone has a spare one please send it.

I also have a company of my own, Secure Being (securebeing.com), which does pen testing and digital forensic work - it's my way of staying super hands on while still doing the management bits on the career path.

I have written books about information security things. Five of them. Two are non-fiction textbooks, and three are fiction based on real world #infosec things. Check out infosecdiaries.com and your local bookstore to find them, just search for my name. I have been trying to write more stuff, but always seem to find myself distracted by other things, such as work. linktr.ee/secureowl has some mini stories I've written.

I love radio and everything RF. I have lots of antennas and various scanners and radios on my desk. I love intercepting and decoding things, like digital radio protocols.

I am a big aviation nerd. I always wanted to be a commercial pilot. I gained my private pilots license in the UK at 17, all self funded by my employment at the local Safeway/Morrisons store. I did the sim test and commercial assessments, but for some reason, at 18, I was unable to find the £100k needed to complete the commercial training, so I did computers. But do not worry, because those computers and love of aviation and radio/RF combined, and I run a project called ACARS Drama. acarsdrama.com has all the details.

I play guitar and am a big guitar/audio nerd as well. I record music under the moniker Operation: Anxiety, operationanxiety.com - the music is on all the normal places.

Finally, I am a massive fan of motorsport. I believe I have watched every F1 race for the last 30 years, maybe 25. I also follow F2, FE, Indycar and MotoGP closely. I average around 18 hours of Le Mans 24 hour racing watching per year.

So there you have it. If you are looking for a thought leader on the topics mentioned above, you've come to the wrong place - because this is where I shitpost, and shitposting is cheap therapy.

Secure BeingInformation Security Consultants | Secure Being | United StatesHome of information security consultants, Secure Being LLC

“Off We Go To War: Starmer’s Strategic Defence Review”

by Binoy Kampmark in Savage Minds on Substack

“Unpopular governments always retreat to grounds of lazy convenience. Instead of engaging in exercises of courage, they take refuge in obvious distractions. And there is no more obvious distraction than preparing for war against a phantom enemy”

open.substack.com/pub/savagemi

Savage Minds · Off to War We GoBy Binoy Kampmark
#Press#UK#Starmer

I run my HF-spotting #SDR receivers in an ancient server running #Proxmox.

It started crashing about a week ago, and I dove into the forums to try to figure out a fix today.

Would you believe the fix was changing the display type to "VMWare compatible"? I'm not running VMWare, and I connect to it via noVNC.

The joys of modern computing!
¯\_(ツ)_/¯

Continued thread

Believe that I always learn something (sometimes lots!) while writing code for should-be-simple lab projects. This is certainly true with this simple RF power meter project. Here’s the Community Edition LabVIEW front panel that is reading the Mini-Circuits ZX47-55 power detector (via Digilent AD3 converter) while being driven by my ADALM-PLUTO SDR TX output at 100 MHz at -40 dBm. Still more fun ahead with this before calling it good enough. #HamRadio #RF #SDR #Digilent #GoodStart

Continued thread

The software tools for this are readily accessible, on my distro it's easiest to use

Gqrx
Gpredict
Qsstv
Pavucontrol (to pipe audio into qsstv from gqrx without messing about with Jack)

Do you know of any SSTV sources other than the ISS at the moment?
#Linux #Radio #SDR #SSTV

Had planned on finishing current book I'm into but successfully procrastinated and went down a Slow Scan TV (SSTV) or the radio transmisssion of images rabbithole instead. Decoding some of the past ISS transmissions people have archived online was fun. Now I have to catch one myself, wonder if this little RTL-SDR/antenna kit is up to it. #SDR #SSTV