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Recent posts

#31
UberSDR / Re: UberSDR Help Guide
Last post by Emmanuel SV1BTL - May 20, 2026, 12:49 PM
Darko, there is a fantastic software for Linux called Time Shift. It makes regularly images of the entire OS, and if something is wrong, then you can return to a previous stable and working moment, as never happend anything, anytime and anywhere in your pc. Time Shift has saved my psychological status many times until now.  :)  Try it!

sudo apt install update
sudo apt install timeshift
#32
UberSDR / Re: UberSDR Help Guide
Last post by 9a7aof - May 20, 2026, 12:25 PM
Unfortunately,

I only have one computer that supports avx2 and that computer is currently running PhantomSDR-Plus.

It works too well for me to experiment with other websdrs on that computer.  :)
It will have to wait until I get good enough hardware to experiment with.

73!
#33
UberSDR / UberSDR Help Guide
Last post by Emmanuel SV1BTL - May 20, 2026, 11:49 AM
I've tried to install UberSDR in my PC that I am using for PhantomSDR. My goal was to make it possible to run either Phantom OR Uber, using one RX888MK2.
The first attempts were not so successful. UberSDR was installed and working, but auto restart with pc's reboot was not desired. Stopping it was not releasing effectively RX888MK2, so to be used from PhantomSDR.
After many tries, I have finally a working installations of Uber and Phantom SDR servers, that can switch on/off when I decide and not when they (the servers) desire. With the precious help of A.I. I can now upload a guide and fix scripts, that you can use, but with your own responsibility.

After an only short time of observation, I can say that it is a very good software for the end user and sysop, with positives and negatives.

Positives:
  • Low Latency. The lowest I've ever heard, just slightly worse than this of remote Perseus (remains the top in this -and not only - area). Very important point for many users.
  • Excellent Admin Panel, with many ways for a sysop to make a personal modified working SDR.
  • Emulations of classical WebSDR and Kiwi, is a good idea, but they lack of some very important functions. I doubt that someone will use them

Negatives:
  • GUI good, but not the best. Some improvements are expected.
  • Audio is not the best. For my ears is too compressed, AGC too hard, lower signals are hard to be heard, "breaths" due to the propagation even when strong signals are present. I think that AGC MUST be arranged by the user and not by default.
  • Not a really Open Source project, as ka9q project is located somewhere that I didn't find. If e.g. I would like to make changes to the GUI, I didn't find a way for this. The same if I want to make the audio smoother

After all UberSDR is a very (very-very-very) well designed project, that I am sure it will give us many new options in the near future. I also hope to be covered with a very detailed documentation for the sysops and end-users.
For now I insist using PhantomSDR, as I am very familiar with this, waiting evolution of the UberSDR.

P.S. I used the following files for installing and trimming the installation of UberSDR in my PC using Ubuntu 24.04 and in a test server using Trixie. Please read the "Installation Guide" before anything else and use the scripts with your own responsibility.

#34
Cumulative version 3.2.1, which you can find and download here:
https://github.com/sv1btl/PhantomSDR-Plus

New in v. 3.2.1
  • users and stats now include maps,
  • new admin panel with "kick user" option,
  • debug tool,
  • new sstv, Robot 36 decoder is added, band-pass filter 1100–2400 Hz and improvements to all sstv decoders,
  • new rade_install and update script,
  • Total bugs clean for server's stability.
#35
PhantomSDR / Cumulative update to v.3.2.1
Last post by Emmanuel SV1BTL - May 16, 2026, 09:11 PM
This is the list of updated files of the version 3.2.1, which you can find and download here:
https://github.com/sv1btl/PhantomSDR-Plus

Debug tool from Paul PE1LXX (thank you Paul)
Registration method to http://websdr.org and https://sdr.shbrg.nl/sdr/ from Paul PE1LXX (thank you Paul)

Sysops coming from v.3.2.0, please copy these files and recompile frontend and backend.
Make a full backup first of your existing installation, using e.g. this command:
tar -czvpf PhantomSDR-Plus.tgz PhantomSDR-Plus/
Please restart the server after this.

~/PhantomSDR-Plus
├── admin_server.py
├── install_rade.sh
├── manage_admin.sh
├── meson.build
├── meson_options.txt
├── proxy.py
├── setup_admin.sh
├── fix_local_geo.py
├── README.md
├── docs
│  └── ADMIN_PANEL_SETUP.md
├── frontend
│  ├── public
│  │  ├── analyze_users.py
│  │  ├── stats.html
│  │  └── users.html
│  ├── src
│  │  ├── App__analog_smeter_.svelte
│  │  ├── App__digital_smeter_.svelte
│  │  ├── App.svelte
│  │  ├── App__v2_analog_smeter_.svelte
│  │  ├── App__v2_digital_smeter_.svelte
│  │  ├── sstv.js
│  │  └── waterfall.js
├── src
│  ├── audio.cpp
│  ├── audio.h
│  ├── chat.cpp
│  ├── chat.h
│  ├── client.cpp
│  ├── client.h
│  ├── compression.cpp
│  ├── compression.h
│  ├── crash_handler.cpp
│  ├── crash_handler.h
│  ├── events.cpp
│  ├── events.h
│  ├── fft.cpp
│  ├── fft_cuda.cu
│  ├── fft.h
│  ├── fft_impl.cpp
│  ├── fft_mkl.cpp
│  ├── http.cpp
│  ├── listing
│  │  ├── software_info.cpp
│  │  └── software_info.h
│  ├── samplereader.cpp
│  ├── samplereader.h
│  ├── signal.cpp
│  ├── signal.h
│  ├── spectrumserver.cpp
│  ├── spectrumserver.h
│  ├── utils
│  │  ├── audioprocessing.cpp
│  │  ├── audioprocessing.h
│  │  ├── dsp.cpp
│  │  └── dsp.h
│  ├── utils.cpp
│  ├── utils.h
│  ├── waterfallcompression.cpp
│  ├── waterfallcompression.h
│  ├── waterfall.cpp
│  ├── waterfall.h
│  ├── websocket.cpp
│  └── websocket.h

Please do not hesitate to ask for help.
P.S. Beta-testers please also download these files, because they are slightly changed, after the last pre-release.

73, de SV1BTL Emmanuel
#36
PhantomSDR / Re: Upgrade to v.3.2.0
Last post by lu5dnp - May 16, 2026, 04:56 PM
Hello group, I truly congratulate you — you have done a magnificent job in bringing into operation, in my opinion, the best and most practical SDR receiver on the web, with a truly outstanding level of excellence that will endure and set a high standard for anyone trying to surpass it.

It is rewarding for me to be part of this and to use Phantom while offering fellow radio operators access to it, as I have always done since 2010 when I began providing this service with various software platforms. However, this latest one is by far the most efficient and complete system I have ever used.

Once again, my congratulations to Emmanuel, Darko, and all the other collaborators involved in this project. I am certain that more additions and improvements will continue to be made through future updates, constantly modernizing and enhancing the system while striving to improve day by day.

My sincere gratitude for the collaboration and assistance in getting the receiver operational, and for all the knowledge I have gained by participating in this project.

Thank you very much.

Best regards,
Nestor – LU5DNP
73s.-
#37
PhantomSDR / Re: Upgrade to v.3.2.0
Last post by 9a7aof - May 13, 2026, 10:50 AM
QuoteFlags left the user/city were working on Mozilla, but not in the other browsers. Now this is fixed.

Done!
Everything works fine in Google Chrome too!

Thanks Emmanuel  :)

QuoteIf you use Firefox VPN for example, You can't access to Phantom's...

I'm using OpenVPN, my server is on RPI3,
PhantomSDR-Plus is on a computer that has an OpenVPN client,

I can access PhantomSDR-Plus via VPN properly. I configured
OpenVPN according to this instruction:

https://wiki.debian.org/OpenVPN#Server_part

73!
Darko, 9a7aof
#38
PhantomSDR / Re: Upgrade to v.3.2.0
Last post by F1NSK - May 13, 2026, 10:31 AM
Hello Guy"s

Beware of VPN !
If you use Firefox VPN for example, You can't access to Phantom's... 8)

73's
#39
PhantomSDR / Re: Upgrade to v.3.2.0
Last post by Emmanuel SV1BTL - May 13, 2026, 08:26 AM
Glad to read it Darko.
Now please replace your stats.html and users.html with these newer.
The bugs resolved:
- when the service Nominatim is down (the service that give us the geo data) then our script runs entirely offline with zero network requests. Nominatim is still tried first for city-level precision; the centroid is only used when Nominatim fails or returns no results.
- all markers are now the same size, and not bigger or smaller depended of how many visits took place from this IP address.
- Flags left the user/city were working on Mozilla, but not in the other browsers. Now this is fixed.
#40
PhantomSDR / Re: Upgrade to v.3.2.0
Last post by 9a7aof - May 12, 2026, 06:33 PM
Thanks Emmanuel,

everything works fine for me now,
I'm not in America anymore.  :)

Local proxy is no longer needed.

73!
Darko, 9a7aof
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