Avionics Navigation Systems - Myron Kayton, Walter R. Fried - Google Books

http://books.google.de/books?id=1KLTUWLz8jcC&pg=PA524&lpg=PA524&dq=janus+diagramm+antenne&source=bl&ots=6hpL1ieg-2&sig=-JlX8thiD

An indispensable resource for all those who design, build, manage, and operate electronic navigation systems Avionics Navigation Systems, Second Edition, is a complete guide to the art and science of modern electronic navigation, focusing on aircraft. It…