What is the best polarization for a GPS antenna (or module) like one in the pictures (links below)? 1. 2. Should the flat side with large surface area be pointed to sky or can it be mounted vertically? Take an example of image #2 where the mounted headers are right angled and if the headers directly go into breadboard, mounting the whole module vertically. Which antenna position will acquire more satellites? Thanks for insights and pointers. Chetan Bhargava http://microz.blogspot.com --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .