Wide Band Web-Based Software Defined Radio in Enschede NL

A place for software, hardware and DSP-based audio gizmos. All things code and the hardware that runs it. Time and amplitude are described in bits and pieces here. Links to interesting gizmos and software.
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mediatechnology
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Wide Band Web-Based Software Defined Radio in Enschede NL

Post by mediatechnology » Mon May 20, 2019 11:11 am

A DXer's dream:

Wide Band Web-Based Software Defined Radio in Enschede NL http://websdr.ewi.utwente.nl:8901/

Image

Got a nice Radio Luxembourg (234 kHz 1.5 MW) aircheck the other night: Pink Floyd Dark Side of the Moon leading up to a top of the hour sounder: https://proaudiodesignforum.com/content ... 4.0kHz.wav

Related reading:

A Telephone-Based Remote-Controlled Radio Receiver viewtopic.php?f=12&t=280
Infinity v. Kirkwood has now been indexed by Google Scholar viewtopic.php?f=11&t=352
https://ka-electronics.com

"VIDEO: Leaked ABC News Insider Recording EXPOSES #EpsteinCoverup "We had Clinton, We had Everything"" https://www.youtube.com/watch?v=3lfwkTsJGYA

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JR.
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Re: Wide Band Web-Based Software Defined Radio in Enschede NL

Post by JR. » Mon May 20, 2019 11:22 am

pix of some QSL cards from back in the early 60s
qslcards.png
radioshack.png
Second picture a little rough but thats a Lafayette Radio communications receiver (kit) on left side... and an old console radio with SW band, and magic eye tuning in the center.

As i recall that old radio was hot chassis and zapped me at least once. :lol: I ran a decent length old school antenna wire between two nearby trees.

I confirmed QSL reports from Africa, Western & Eastern Europe, and South America.

JR
Don't only half-ass tune your drums. Visit https://circularscience.com to hear what properly "cleared" drums sound like.

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mediatechnology
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Re: Wide Band Web-Based Software Defined Radio in Enschede NL

Post by mediatechnology » Mon May 20, 2019 11:29 am

Nice!
I suppose having remote-controlled receivers is cheating. :lol:
https://ka-electronics.com

"VIDEO: Leaked ABC News Insider Recording EXPOSES #EpsteinCoverup "We had Clinton, We had Everything"" https://www.youtube.com/watch?v=3lfwkTsJGYA

"There's A War On For Your Mind" Banned.Video https://banned.video/

billshurv
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Re: Wide Band Web-Based Software Defined Radio in Enschede NL

Post by billshurv » Tue May 21, 2019 3:54 am

It is majorly impressive how things that needed banks of DSP cards 30 years ago can now run on a laptop. Modern high speed ADCs are also very impressive. I remember back in the late 90s the old guard were saying that single down conversion zero IF radios weren't possible for cell phones then suddenly there was the leap in coverter tech that made it not only possible, but the best solution.

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mediatechnology
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Re: Wide Band Web-Based Software Defined Radio in Enschede NL

Post by mediatechnology » Tue May 21, 2019 9:23 am

I really like how it "Hoovers" (vacuums up) the entire 25 MHz spectrum so you can see what band is active.
The waterfall display is way cool.

I found a network of receivers here: https://www.sdr.hu/

I must have been way, way, way, way ahead of my time when I did this back in 1993. https://proaudiodesignforum.com/forum/p ... f=12&t=280
The irony is that the first station I punched up on sdr.hu was a station in Virginia where I monitored WFAN at 660 kHz.

Retransmitting WFAN is where my fun began...
https://proaudiodesignforum.com/forum/p ... f=11&t=352
https://scholar.google.com/scholar_case ... 0000000002

Q: "Will you stop?"
A: "No. Make me."
https://ka-electronics.com

"VIDEO: Leaked ABC News Insider Recording EXPOSES #EpsteinCoverup "We had Clinton, We had Everything"" https://www.youtube.com/watch?v=3lfwkTsJGYA

"There's A War On For Your Mind" Banned.Video https://banned.video/

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