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RF BASICS and THEORY. "Very little is new in RF anymore. Almost everything that we see today is a variation on a very old and well understood theme"-- C. Marki. - Phased Array Antennas. - Understanding Noise Figure.
A Homebrew High Performance HF Transceiver — the HBR-2000. VE7CA shows us that it’s still possible to roll your own full feature HF transceiver — and get competitive performance!
5 lip 2023 · New chapters, examples, and insights; all infused with the timeless concepts and theories that have helped RF engineers for the past 25 years! RF circuit design is now more important than ever as we find ourselves in an increasingly wireless world.
RF Circuit Design, Second Edition by Chris Bowick, John blyler and ... ... Loading… ...
Homebrew RF Circuit Design Ideas. "There is no such thing as a new idea. It is impossible. We simply take a lot of old ideas and put them into a sort of mental kaleidoscope. We give them a turn and they make new and curious combinations." - Mark Twain (1835-1910) http://www.qsl.net/va3iul/.
There are at least four ways to make homebrew RF boards. Originally I tried etching firealfl printed circuit boards with ferric-chloride solution. It™s slow, messy and lots of work. Etching boards is an art that isn’t easy to master. You may under-etch or you may over-etch, often on the same board!
Modern receivers use integrated circuit frequency synthesizers to generate VFO signals anywhere they like. Sometimes modern HF receivers escape from artifact images and harmonics
