GPS jamming exercises

12 October 2011

The Ministry of Defence conduct occasional tests on military systems which may result in some loss of service to civilian users of the Global Positioning System (GPS) including in-car navigation devices and networks which rely on GPS signals.

Ofcom seeks to provide citizens and consumers with information about possible interruptions to these services. It must be emphasised that this notification process only warns of future jamming exercises that are brought to the notice of Ofcom and may not cover all jamming exercises. It cannot be assumed that any loss of service is due to jamming exercises.

If you have any queries regarding these notices forward them to

Historic GPS Jamming Exercises

Please visit the National Archives to view these exercises.

Dates: The exercise will run over the period 11 to 22 October 2016.
Times: Limited to daylight hours.
Location: WGS84 positions N58° 36.16’, W004° 46.50’ (Faraid Head) and N57° 51.89’, W005° 41.14’ (Loch Ewe).
Frequencies: 24 MHz bands centred around 1227.60 MHz and 1575.42 MHz.
Maximum Power: 50W EIRP.

As in previous exercises, Safety of Life operations will at all time take precedence over exercise activities.