What you may not transmit, the narrow exceptions, and why testing needs an ID but model-craft control doesn't.
Syllabus: Authorized and prohibited transmissions; Sale of equipment
Compendium articles on the ideas in this lesson, beyond what the exam asks.
Practise the 12 pool questions for this group. Answers are shuffled, and every one comes with a one-line "why".
Broadcasting is transmission intended for the general public. It is prohibited. Some one-way transmissions are not broadcasting: event announcements, code practice, telecommand and telemetry. News gathering and broadcast support is allowed only when tied to the immediate safety of life or protection of property, and nothing else is available.
An auxiliary station is a one-way link between parts of a repeater system, such as a remote receiver feeding the main transmitter.
Memory hookCodes: space and model craft. Music: spacecraft. Dirty words: never. Objecting countries: no.
Testing, tuning, carriers and low power are all still transmitting, so you identify. The exception to know: signals that control model craft.
RememberOccasional ham-gear sales and classroom teaching only.