6. Emissions

6.1 High-frequency emissions

These are the bands below 30 MHz, the first to be used in the early days of amateur broadcasting. Here, traffic was carried by a separate transmitter and receiver.

6.1.1 Transceivers

The Transmitter-Receiver is a complete device for transmitting and receiving on the same frequency, equipped with a band and mode selector. This basic version can be upgraded with a wide range of accessories and options, such as a clarifier, quartz marker every 100 or 25 kHz, adjustable...