Explores more advanced territory with shortwave , microwave , and ultrasonic transmitters .

Here is a deep dive into why this book is a staple for the experimental community. The Allure of the Forbidden Frequency

Projects covering lower-frequency AM bands and long-distance shortwave communication.

: Readers are taught how to troubleshoot common RF issues and optimize transmitter range. Contemporary Context and Legacy

The subtitle “electronic circuit investigator” indicates that Braga intends the reader to be an active experimenter—someone who builds, tests, probes, and learns from circuits. The projects are designed to be:

Includes circuits for several types of FM radio transmitters and AM radio transmitters , ranging from basic micro-transmitters to more robust setups.