User talk:NIRAN

Error
Hello, I'm DVdm. Your recent edit to the page Global Positioning System appears to have added incorrect information, so I have removed it for now. If you believe the information was correct, please cite a reliable source or discuss your change on the article's talk page. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you. - DVdm (talk) 18:04, 31 July 2015 (UTC)