Additional info:. There is no age requirement for a ham license so children can get involved. The AARL is the century old ham organization and they have youth outreach directors which help kids start radio clubs in their schools and I’m pretty sure offers some grants and scholarships. So if you have kids or grandkids that are not being challenged in school, or they are homeschooled, this is a great subject that covers all the STEM subjects as well as Geography.
Can radio signals rapidly relay text in some way?