Thinking

Here you will find material teaching theoretical concepts needed for amateur radio

SDR

Frequency Modulation

Narrowband FM

Repeaters

Signal Processing

Visualisation

Exploring narrowband FM repeater behaviour using IQ plots

SDR

Frequency Modulation

Broadcast FM

Signal Processing

Visualisation

Constellation Diagram

This post is the first in a short series exploring what different radio signals look like in IQ space. It begins with broadcast FM.

SDR

Teaching

Exploring how software-defined radios help in learning radio theory.