GNSS interference is increasingly becoming an issue for GPS/GNSS users. Whether the interference is accidental due to malfunctioning components or malicious to avoid detection, our SENTINEL programme has shown these incidences are on the increase.  Interference can cause loss of signal entirely, cause noise or feed misleading information into a receiver. The CTL3500 and J-Alert products on this page are designed to detect GPS L1 and GSM interference to allow the user to identify the cause and mitigate the effects.

CTL 3500

The Chronos CTL3500 is a handheld GPS Interference Monitor is designed to detect the presenceof too much GPS satellite power or non GPS signal and interference broadcasting on the satellite navigation L1 channel which could indicate inadvertent interference or intentional electronic warfare attacks intended to jam GPS signals.

J-ALERT

The J-ALERT is an RF signal analyser that monitors GSM Radio Frequencies and GPS for unlawful jamming by illegal devices.  Monitor and follow criminals using their own jamming devices in their attempt to elude law enforcement and defeat toll bridge systems.