Caraffa

[Caraffa @Caraffa_]

@OwenBrakes What is the title of the paper?

[Caraffa @Caraffa_]

@penonymously @BlueCrystais @lostbutlucky I mean yea basic radio/SDR knowledge is needed but it's nothing a YouTube can't explain

[Caraffa @Caraffa_]

@BlueCrystais @katie_panda @lostbutlucky You must be trolling XD

[Caraffa @Caraffa_]

@penonymously @BlueCrystais @lostbutlucky Ah, I didn't know about the DMs.
The simplest possible way is to use SDR and record signal transmitted by any passing satellite (e.g. ISS, Meteor-M). Then you can measure Doppler frequency and from that estimate the velocity. You could also use radars for this (passive or active)

[Caraffa @Caraffa_]

@BlueCrystais @lostbutlucky Yea sure i can give you mine in DMs, just message me. I don't want to dox myself here

[Caraffa @Caraffa_]

@BlueCrystais @lostbutlucky bro you can measure it yourself lol

[Caraffa @Caraffa_]

@nbdcrsXXX @jakubwiech @sauc_t A co do drugiej części, to wybrałeś sobie słaby przykład. Gates jest darczyńcą masy inicjatyw pro-klimatycznych i badań prowadzonych przez niezależne jednostki więc raczej w to wierzy. Dodatkowo co to za uzasadnienie XD Bogacz źle robi to ja też powonieniem? 2/?

[Caraffa @Caraffa_]

@nbdcrsXXX @jakubwiech @sauc_t Weź to napisz jakiejś grupie badawczej z uniwersytetu to się zapytają gdzie te pieniądze. Nie opłaca ich żaden biznes niszczenia klasy średniej XD Ludzie nigdy nie mieli do czynienia z pracą badawczą i wymyślają konspiracje spiskowe bo tak prosciej uzasadnić ich myslenie 1/?

[Caraffa @Caraffa_]

@VinayBharambe @tkanarsky @ryzerth He didn't say that SpaceX isn't polluting lol

[Caraffa @Caraffa_]

@kicad_pcb @hasanthesyrian Nice! But I have to ask - why only there? Afaik most people complaining about this are referring *all windows* - especially separate schematic and pcb editor windows. Is there any plan to change this too?

[Caraffa @Caraffa_]

@AI_in_LEO @ryzerth ah that makes sense! I didn't know what I was working on then! 🫨

/s

[Caraffa @Caraffa_]

@AI_in_LEO @ryzerth Yeah, sure... You basically ignored all of the arguments lol

If space is that big then why would we bother with SSA initiatives etc? Do we really have to increase the space debris number in the next ESA report?

[Caraffa @Caraffa_]

@KodaClement @UglyBluejay @AustinMa119728 Will you make a PR to the main repo?

[Caraffa @Caraffa_]

@fillagrew @F5OEOEvariste @MehdiHacks @Kyrannio From what I've heard it has huge issues with noise coming from the Ethernet that you need for higher bandwidth. Unless it's another chinesium model that might have fixed it (I doubt it)

[Caraffa @Caraffa_]

@MehdiHacks @Kyrannio Well, maybe I'll re-sell it somewhere and buy something better

[Caraffa @Caraffa_]

@MehdiHacks @Kyrannio I'll try the B210 later on when I have some free time on the uni

[Caraffa @Caraffa_]

@MehdiHacks @Kyrannio The spurs themselves aren't that big of a problem tbh. It just limits the frequency range if someone wants to use high gain.

Also, what SDR offers 72dB gain. If someone needs that much they should use external LNA imo.

[Caraffa @Caraffa_]

@MehdiHacks @Kyrannio This is how it looks like with 56 dB gain and no antenna. Spurs at second input at this channel are half of that and above 1 GHz they disappear.

[Caraffa @Caraffa_]

@MehdiHacks @Kyrannio The only downside is that at some gain (iirc ~13 dB) it looks like it switches LNA paths and at around 20-25 dB multiple spurs appear. For low bandwidth it's not a problem but for 56 MHz it looks kinda bad. On the other hand who needs >50dB gain in chinesium SDR.