Signal
-
Foundations of Signal Processing free book
- Sniffing nRF24 with GNU Radio and HackRF
- RFSec-ToolKit V 2.0 repo with a lot of info
- Signal identification guide
Transmission lines
- Proper Termination for High-Speed Digital I/O Applications
- Transmission lines and reflections, tested video
Modulation
- https://electronics.stackexchange.com/questions/223430/operation-of-lc-circuit-in-frequency-modulation-with-simulation-and-linking-it-t
- https://electronics.stackexchange.com/questions/343446/fm-tansmitter-ac-equivalent-circuit-capacitor-analysis
- https://electronics.stackexchange.com/questions/204854/how-is-fm-modulation-is-achieved-using-a-single-bjt
- https://electronics.stackexchange.com/questions/226694/boost-the-signal-of-an-fm-transmitter-using-an-emitter-follower-transistor
- AM/FM Transmitter schematics
- http://www.diy-electronic-projects.com/p121-4W-FM-Transmitter
- https://www.allaboutcircuits.com/textbook/radio-frequency-analysis-design/radio-frequency-demodulation/how-to-demodulate-an-fm-waveform/
- https://www.elttam.com.au/blog/intro-sdr-and-rf-analysis/
Antenna
- https://electronics.stackexchange.com/questions/73998/how-antenna-radiateshow-currents-flows-through-wire