The strength of the GPS signal at the antenna of your receiver is about the same as viewing a 25 Watt light bulb shining down from the satellite during daylight. Jamming and Interference - the two main topics of this symposium represent real threats which some industrial and military GPS receivers can address and manage.
This conference will bring together experts from all aspects of the PNT community to debate important aspects of GPS vulnerabilities including intentional and unintentional jamming, natural and man-made interference and other issues which might impact users and applications which leverage PNT technology.
Please check this link for more details.