Exelis has announced improvements to its Signal Sentry 1000 product for detecting and source locating of interference to GPS signals.

The enhancements, based on customer use and feedback, include improved sensors that increase detection accuracy for pinpointing the jamming source, enhanced analytics to discern jamming patterns, and instant reporting of jamming events via text or email.

"Since Signal Sentry has been used by law enforcement, we have been able to enhance the products investigative and intelligent-led policing capabilities," said Carl Slutsky, product line manager for Signal Sentry at Exelis. "Now, users can see patterns -- such as what happened and when and where it happened -- to better allocate their investigative resources.

"Additionally, we added an alert feature to Signal Sentry that provides real-time notice of a GPS jamming event, so law enforcement can dispatch a patrol unit to the precise location of the jamming event."

Signal Sentry leverages the Global Navigation Satellite System signal domain knowledge and is based upon patented technology.