SENNYBRIDGE TRAINING AREA, WALES, 24 SEPTEMBER – 5 OCTOBER 2012

Dates: Between 24-28 September and 1-5 October 2012 inclusive

Times:  0900 -1700 BST

Location of MULTIPLE jammers: Land based within 5km of N52° 00.881’ W003° 38.518’ (SN873365 – Dixie’s Corner)

Frequency: 24 MHz bands centred around 1176.45 MHz (GPS L5), 1227.60MHz (GPS L2) and 1575.42MHz (GPS L1)

Total Power: Up to 10 Watts EIRP. Whenever possible the transmissions will be at lower powers

Details of Higher Power Jamming

Dates:  Maximum of two week-days each week between 24-28 September and 1-5 October 2012. Exact days to be notified in Jamming Warning Message circulated at least 7 days in advance of the first jamming.

Times:  Between 1000-1200, and 1400-1600 BST.

Location of MULTIPLE jammers: Land based within 5km of N52° 00.881’ W003° 38.518’ (SN873365 – Dixie’s Corner).

Frequencies: 24 MHz bands centred around 1176.45 MHz (L5), 1227.60MHz (L2) and 1575.42MHz (L1).

Total Power: Up to 100 Watts EIRP.

The jamming will not affect GPS users up to a height of 25 metres AMSL around the UK coastline. Whenever possible the transmissions will be at lower powers. It is stressed that, as in previous exercises, Safety of Life operations will at all times take precedence over exercise activities.

Ofcom stakeholders should contact InfoGPS.Notices@ofcom.org.uk