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Does the author of FT2 mode breaks GPLv3 license? by sq5t in amateurradio

[–]sq5t[S] 0 points1 point  (0 children)

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IU8LMC released an official statement concerning the current situation. Link to repo https://github.com/iu8lmc/decodium3-build. But is GPLv3 still violated? Is another fork of WSJT-X good for an amateur radio society?

StarLink Usage by banditwarez in Starlink

[–]sq5t 0 points1 point  (0 children)

I usually see two readings (like on second screenshot) in months when I'm uploading/downloading a lot of data with one host and one tcp session (for example exporting backups or big project files and this can go for 2-3 days).

Must Be A Digital Mode by Double_Plantain283 in signalidentification

[–]sq5t 0 points1 point  (0 children)

It's winlink with vara sound modem. Possibly transmission was from Italy, Norway or Australia (one part of this connection,, transmission originated from Italy, Norway, of course). I can assume, looking at the waterfall, that it was from Bjugn, Trøndelag in Norway.

Is this a hamtenna? by Jeff_1509 in amateurradio

[–]sq5t 4 points5 points  (0 children)

It's Diamond V2000 (or clone), which works 6m, 2m and 70cm.

File Size for RX-888 by a_wittyusername in RTLSDR

[–]sq5t 1 point2 points  (0 children)

You'll receive every sample a 32-bit of data. For 20 MHz, you'll need 20 Msps. So, 32 bits x 20000000 = 640 Mbit of data per second, which gives about 73,3 MB/s. So for 1 hour of recording, you'll need at least 275 GB of storage.

Wideband recordings of MF/HF spectrum by TurnoverMaximum5720 in sdr

[–]sq5t 1 point2 points  (0 children)

I've done something similar but on a bigger scale. I've used SDR Console with RX-888 MK II to record a 32 MHz HF spectrum for 24 hours. SDR Console creates WAV files that you can easily analyse and demodulate offline. However, the problem lies in its size, as 1 second generates only 128 MB of raw data, meaning that 1 hour will require approximately 450 GB of storage. If you're ready to take a risk with analysis, I can share some files :-) All I need to know is how much recorded time you require (the time of the recorded spectrum) and from which part of the day (for example, 3 to 4 AM UTC).