I've always wondered what an SDR like the @airspy.com could hear while connected to an antenna atop a high tower.
Roman Porterfield put together an awesome video near Jamestown, N.D. that answered my question!
At just 22, he's also written some awesome software that aids his engineering duties!
@swradiogram.bsky.social Final three images received in northern Florida, USA.
A great group of vibrantly colored images tonight!
Received using Airspy HF+ with MLA-30+ active loop antenna. FLDigi and SDR# beta of v.1922-64bit.
🎙️ One-two, one-two, is this thing on? It’s been a minute! Late to the party but here’s uConsole CM4 running CubicSDR with #AirSpy HF+ Discovery.
@swradiogram.bsky.social Sunday/Monday overnight. WRMI on 5850 kHz continues to hold up very well into northern Florida, USA.
Unattended reception using Airspy HF+, SDR#, FLDigi and W6LVP active loop antenna.
@swradiogram.bsky.social Final group.
Received using Airspy HF+ and long random wire antenna.
Kim, hope you get you power restored today!
Beta
You may like the latest beta for the fast AGC and improved NR.
You are most welcome!
Many thanks to @airspy.com for the wonderful service! I'm now back listening to the HF bands with a shiny new Airspy HF+ Discovery!
How good is #Airspy's DSP? youtu.be/bt6voi8W8DQ
Nothing that cannot be fixed. Send me an email: info at airspy dot com
The throughput on an Intel i5 13gen with one thread, decimation = 512, using 32bit floats:
o Real Input (one ADC) / Complex output => 3840 MSPS
o Complex Input (Quadrature sampling) / Complex output => 1852 MSPS
In other news, I managed to reach a sustained throughput of 2680 MSPS (Single ADC) and 1150 MSPS (Dual ADC) with the full DDC implemented in software using one thread of my Ryzen 5900HX laptop. 3.5x the speed of the state-of-the-art.
Any idea what can this be used for? #Airspy
Ctrl + F5
Fixed.
Coming soon.
This morning's beta also improves the performance.
-140 dBFS is enough? Check the Beta.
Noted.
That's why you are missing major info about the state of the art.
You didn't notice. It means it's so good.
Maybe. Or maybe use our own compression that's used in the SpyServer.
It's a 1:1 TLT. Try mix 43.
Yes, two cores stacked. I bought a hundred of these to clean the LED lighting in my house, and I had a few spares. Now it's their show time.
www.wimo.com/en/40094-35
I found some pulsed noise this morning and I thought this would be a good demo of SDR#'s Wide Band Noise Blanker (WB NB) and Natural Intelligence Noise Reduction (NINR.) Here's a quick video of the different combinations. Used an Airspy HF+ and a YouTwin Loop.
www.youtube.com/watch?v=5HdU...
The actual BALUN.
10 ~ 15m of speaker wire as a triangle pointing up. The BALUN is in the middle of the bottom segment. Use a TLT type transformer like the photo.
After many optimizations, the performance is nothing short of spectacular. Not bad for a simple piece of speaker wire and a ferrite core.
The antenna in question is online.
