Handbook, chapter 17. Where to go next
Sixteen chapters behind you. If you have got this far and put up an antenna, you already have everything you need to work on the air without asking anyone else's infrastructure for permission.
The book ends here; the hobby does not. This chapter is about where it leads.
Six directions
antennas — The cheapest way to add decibels and the quickest return. It starts with a second antenna built better than the first. Builds on chapters 9 and 10.
Pick one. Not six — one. Radio is large enough that you can scatter yourself across it for ever and never become good at any of it.
The mark of the right choice is simple: it is the thing you think about anyway when you are not on the air.
What to do first, now the book is finished
A second antenna. The first was a compromise — you did not yet know what you were doing. A second one, built with chapters 9 and 10 understood, will give you more than any purchase.
A hundred contacts. Not a hundred interesting ones — just a hundred. After them the stiffness in front of the microphone goes, and the hobby proper begins.
One contest. A short one, and never mind the score. It is the fastest way there is to learn how to operate.
Write down what does not work. Your log and your notes from the first year are material nobody else has. A year on it will look like a finished article.
Where to ask
The local radio club. The most underrated resource there is. People who have already put up a mast know where to get cable and what does not work in your particular town. Half a beginner's problems are solved by one conversation.
The air itself. It sounds paradoxical, but asking on the air is normal and it works. Experienced operators are mostly glad to explain: somebody once explained it to them the same way.
Mailing lists and forums. They hold the answers to technical questions you have not got round to asking yet.
One caveat, but an important one: amateur radio is full of confident advice that nobody has ever checked. «The cable has to be a multiple of a half wave», «earthing improves the SWR», «this balun is better» — all of it has been circulating for decades. Check it with an instrument and trust the measurement, not the tone it was said in.
What this book deliberately left out
So that you know where its holes are.
Transmitters. There is not a single transmitting circuit here, and deliberately so: a mistake in a transmitter is audible to the whole band.
Repair. Fault-finding is a craft of its own, and it is learnt with an instrument in your hands, not from a text.
VHF and satellites in detail. Mentioned but not taken apart: they have their own physics, their own antennas and their own rules.
Regulations and law in figures. Chapter 2 shows the order of steps, chapter 3 the limit, chapter 12 the principle of earthing. Particular figures are referred everywhere to the documents in force, and that is not laziness: a book outlives an edition of the rules.
And one last thing
Radio is one of the few hobbies where you can go all the way to the bottom. There is no level at which you will be told «closed beyond this point»: the physics is the same for a beginner with a dipole and for someone writing a decoder or launching a satellite.
You started with the question of why radio in 2026. The best answer to it is not a paragraph in the first chapter but the evening when you hear a station from another continent in a receiver you built yourself, and understand every stage on the path from the antenna to the headphones.
The end of the handbook. The beginning is chapter 1.