3 ms·

There's no all in one stop for understanding radio but these 5 resources helped me a lot. The RF Get Down courses. This is by far the best material online to l

There's no all in one stop for understanding radio but these 5 resources helped me a lot. The RF Get Down courses. This is by far the best material online to learn RF and how modulation works: https://www.youtube.com/@rfgetdown/videos https://www.youtube.com/@rfgetdown/videos 3blue1brown's video tutorial on the fourier transform: https://www.youtube.com/watch?v=spUNpyF58BY https://www.youtube.com/watch?v=spUNpyF58BY AT&T Archives: Similiarities of Wave Behavior http://www.youtube.com/watch?v=DovunOxlY1k http://www.youtube.com/watch?v=DovunOxlY1k Quadrature Signals: Complex, But Not Complicated by Richard Lyons, https://dspguru.com/files/QuadSignals.pdf https://dspguru.com/files/QuadSignals.pdf https://dspguru.com/dsp/tutorials/quadrature-signals/ https://dspguru.com/dsp/tutorials/quadrature-signals/ Antenna Theory's website and forums, https://www.antenna-theory.com/antennas/main.php https://www.antenna-theory.com/antennas/main.php I also highly recommend getting a $20 rtl-sdr USB software defined radio dongle. They're great toys for learning RF, what modulation is, and exploring the spectrum.

threeio 3y ago
A 20$ RTL-SDR will give you a very broad view of the spectrum and an idea of how one area can be quiet, the other filled with signals and the oddities of atmospheric noise, etc. Super fun and there are 100,000 YouTube videos on how to get it working. https://www.amazon.com/NooElec-NESDR-Mini-Compatible-Packages/dp/B009U7WZCA/ https://www.amazon.com/NooElec-NESDR-Mini-Compatible-Package...
- NikkiA 3y ago
  I would argue that a $0 web-sdr bookmark will teach you exactly the same things without you forever wondering if it's your antennae that's the problem.
  - furyg3 3y ago
    Where do you find these? Is there an online library?
    - NikkiA 3y ago
      websdr.org has a huge list. You can find a few more via google.
  - ale42 3y ago
    Very true... only issue is that you wont receive any local signals if there's no local web-SDR in your area.
  - actionfromafar 3y ago
    You sort of back-handedly made a case for using your own antenna to better understand radio. :-)
    - NikkiA 3y ago
      Oh, there is absolutely a case for trying your own antennae, and experimenting with various antenna topologies, to understand radio. The issue is if it's the first thing a newbie should be doing while also trying to work out if their USB dongle works at all :D

threeio 3y ago

A 20$ RTL-SDR will give you a very broad view of the spectrum and an idea of how one area can be quiet, the other filled with signals and the oddities of atmospheric noise, etc. Super fun and there are 100,000 YouTube videos on how to get it working. https://www.amazon.com/NooElec-NESDR-Mini-Compatible-Packages/dp/B009U7WZCA/ https://www.amazon.com/NooElec-NESDR-Mini-Compatible-Package...

NikkiA 3y ago
I would argue that a $0 web-sdr bookmark will teach you exactly the same things without you forever wondering if it's your antennae that's the problem.
- furyg3 3y ago
  Where do you find these? Is there an online library?
  - NikkiA 3y ago
    websdr.org has a huge list. You can find a few more via google.
- ale42 3y ago
  Very true... only issue is that you wont receive any local signals if there's no local web-SDR in your area.
- actionfromafar 3y ago
  You sort of back-handedly made a case for using your own antenna to better understand radio. :-)
  - NikkiA 3y ago
    Oh, there is absolutely a case for trying your own antennae, and experimenting with various antenna topologies, to understand radio. The issue is if it's the first thing a newbie should be doing while also trying to work out if their USB dongle works at all :D