Electronics Infoline Web

The Art of Listening to Distant Signals

A history of DX'ing, plus listening tips by Brent Taylor of the Canadian Communications Foundation.

http://www.broadcasting-history.ca/engineering/DXing-The_Art_of_Listening_to_Distant_Signals.html

The ATM's Workshop

Areas covered include optics, woodworking, metalworking, electronics, programming, and telescope equipment, and tips and techniques.

http://www.atm-workshop.com/

The Australian 1 metre loop

Werner Funkenhauser describes in detail the loop antenna model he's been using for years to capture lots of rare Trans-Atlantic medium wave stations.

http://www.hard-core-dx.com/nordicdx/antenna/loop/1mloop.html

The Cookbook CCD Camera

help amateur astronomers who build their own CCD camera.

http://www.wvi.com/~rberry/cookbook/cookbook.htm

The Coq Project

Deals with effectively machine-checked formal mathematics. In practice, this includes the study of mathematical formalisms well-suited for implementations, the implementations themselves and the use of these for various applications. Focuses on software correctness proofs.

http://pauillac.inria.fr/coq/

The difference between Stepper motors, Servos, RC Servos

http://www.robotics.com/motors.html

The Economics Pack

The Pack integrates more than 50 Mathematica packages and more than 1000 functions in economics, statistics, econometrics and system enhancement. It provides a working environment that is basic but very useful.

http://www.dataweb.nl/~cool/TheEconomicsPack/index.html

The Electroluminescent Receiver

The receiver is a dual dual-conversion, dual dual-image superhet receiver that covers the 40, 30, 20 and 17 meter amateur radio bands. With minor modifications, the 41, 31, 19, and 16 meter SWL bands can be received.

http://www.pan-tex.net/usr/r/receivers/index.htm