Circuits around the GPS system

A larger number of satellites enables precise positioning at almost any place on earth. eg the new German road toll system based on GPS, in order to calculate the distance covered. With GPS you can do even more. Here are some links to interesting sites

Here you may find Circuit, Basics, Schematic Diagram and DIY Kit components for GPS Global Positioning System

APRS system GPS receiver Start right away Displays the current position of a transmitter on the PC monitor	au.geocities.com/vk3hjq/vk3hjq/aprs.htm
Building your own GPS cable for PC connection, various manufacturers	www.gpsy.com/cables/making.html
GPS synchronized frequency standard. Contains some very interesting basics!	www.rt66.com/~shera/QST_GPS.pdf

Schematics Online