The projects are described as using a "minimum investment" approach to achieve maximum learning, providing a practical entry point into radio engineering.
Many projects are aimed at teaching the basics of telecommunications to beginners, students, and educators.
Perhaps the most "experimental" part of the book, these projects allow users to transmit composite video signals to a nearby TV. In the age of analog NTSC/PAL signals, this was a feat of DIY engineering.
The stage where the information (audio from a microphone/tape deck, or composite video from a camera) is injected into the carrier wave. Braga covered both Amplitude Modulation (AM) and Frequency Modulation (FM).
Teaches builders how small changes in component layout can cause frequency drift, introducing them to the concept of parasitic capacitance. 2. AM Broadcasting Projects The projects are described as using a "minimum
Operating high-power or unauthorized transmitters may violate FCC or local telecommunications laws. These projects are intended for educational and experimental use within legal limits.
is a hands-on guide for building low-power broadcasting equipment. Amazon.com Key features and details include: Diverse Project Range : Contains over 30 projects covering UHF, VHF, AM, and FM transmitters. Specialized Transmissions : Includes circuits for microwave and shortwave
by Newton C. Braga is a seminal work for electronics hobbyists interested in the mechanics of broadcasting. Published by Newnes, the book details over thirty hands-on projects designed to demystify RF (Radio Frequency) technology.
Instructions on building dipoles and ground-plane antennas to maximize micro-power range. 3. Analog Video Transmitters In the age of analog NTSC/PAL signals, this
| Category | Items | |----------|-------| | Basic tools | Soldering iron (25–40 W), multimeter, wire cutters | | RF tools (optional) | Frequency counter, RF probe, spectrum analyzer (if serious) | | Semiconductors | 2N2222, BC547, 2N3866, BF199, BA1404, LM386, NE555 | | Passives | Resistors (100 Ω to 100 kΩ), trimmer caps (5–60 pF), inductors (air core, 4–8 turns) | | Misc | Stripboard, 9V battery, small plastic enclosure, telescopic antenna |
Covering wave production, frequency selection, antennas, and legal considerations.
Hands-on instructions for wrapping copper wire around pencils or ferrite cores to create custom inductors.
Components that are generally available, even to hobbyists. Teaches builders how small changes in component layout
Techniques for combining separate units (e.g., audio and video) into a unified broadcasting system. Quick Reference Guide Author Newton C. Braga Series Electronic Circuit Investigator Format Paperback (and Kindle/E-book) Bands Covered UHF, VHF, AM, FM, Microwave, Shortwave Primary Goal
Complex setups utilizing UHF/VHF oscillators combined with video modulation stages.
If you are picking up this book today, there are two things to keep in mind: