GPS Jamming Exercises 2013

[fitzsimons]

NOTIFICATION OF GPS JAMMING EXERCISES STANFORD TRAINING AREA, EAST ANGLIA, FEBRUARY 2013
　
Dates: Between 11 and 15 February 2013.
Times: 0900 -1600 GMT.
Location of MULTIPLE jammers: Land based within 5km of N52° 29.0’ E000° 45.0’.
Frequency: A 24 MHz band centred around 1575.42MHz (GPS L1).
Total Power: Up to 10 Watts EIRP.
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 　
　
　
NOTIFICATION OF GPS JAMMING EXERCISES OFF THE COAST OF EAST ANGLIA, FEBRUARY/MARCH 2013
　
Dates: 25 to 26 February and 28 February to 1 March 2013.
Times: Intermittently for a 90 minute period in each time slot 0930-1200 GMT and 1400-1630 GMT.　
Location of jammers: Sea based omni-directional jammer onboard a vessel sailing within the Experimental Buoys area, as charted, but no further North than 51°55’N in the area bound by following boundary positions (WGS84):　
•　　　　　　　　 51.916667°N 1.453745°E　 (51° 55.0’N　 1°27.2’E)
•　　　　　　　　 51.883980°N 1.445504°E　 (51° 53.0’N　 1°26.7’E)
•　　　　　　　　 51.883607°N 1.397795°E　 (51° 53.0’N　 1°23.9’E)
•　　　　　　　　 51.916667°N 1.421994°E　 (51° 55.0’N　 1°25.3’E)
Frequency: 24 MHz bands centred around 1575.42MHz.
Total Power: 0.0005 Watts ERP maximum so as not to effect vessels outside the area bounded by the co-ordinates above or aircraft flying above 2500ft.
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 　
　
　
NOTIFICATION OF GPS JAMMING EXERCISES RAF SCULTHORPE AIRFIELD, EAST ANGLIA,　 MARCH 2013
　
Dates:　　 25th and 29th March 2013.
Times: 0700 -1700 BST.
Location of SINGLE jammer: Land based within 2km of 52° 50′ 54″ N, 0° 45′ 38″ E
Frequency: A 20 MHz band centred around 1575.42MHz (GPS L1).
Power: Up to 0.3 Watts EIRP (300mW).
Jammers: Omni-directional jammers radiating CW.
It is stressed that, Safety of Life operations will at all times take precedence over exercise activities.
　
Ofcom stakeholders should contact InfoGPS.Notices@ofcom.org.uk

[fitzsimons]

NOTIFICATION OF GPS JAMMING EXERCISE STANFORD TRAINING AREA, EAST ANGLIA, March 2013

Dates: Between 18 and 22 March 2013.

Times: 0900 -1700 GMT.

Location of MULTIPLE jammers: Land based within 5km of N52° 29.0’ E000° 45.0’.

Frequency: A 24 MHz band centred around 1575.42MHz (GPS L1).

Total Power: Up to 10 Watts EIRP.

Jammers: Directional jammers radiating CW, BPSK and noise modulation.

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

[fitzsimons]

NOTIFICATION OF GPS JAMMING EXERCISE: HEBRIDES RANGES, 8 to 12 April 2013

Dates. Between 8 and 12 April 13

Times. Between 10.00 to 12.00 GMT and 14.00 to 16.00 GMT daily.

Location of jammer. The jamming aircraft will fly a ground track based on the Benbecula (BEN) VOR 275° radial. The aircraft track will extend from 10nm west of the BEN VOR to 60nm west of the BEN VOR

Frequencies. 24MHz bands centred around 1227.60MHz and 1575.42MHz.

Jamming aircraft altitude. 3500ft Above Mean Sea Level (AMSL).

Affected areas. Interference prediction plots for a Civil GPS receiver at 165, 3000, 10000 and 30000 ft AMSL

It is recognised that this trial will have some effects on local operations but as always safety of life will take precedence over trials activities. Therefore, in order to reduce these effects as much as possible, the following measures will be carried out:

a. The jamming will only be transmitted in a westerly direction away from the mainland.

b. Continuous jamming will be limited to 12 minutes maximum per run with 5 minutes minimum between runs.

c. Both Benbecula Air Traffic Control and Stornaway Coastguard will be informed each day as to whether jamming activity will be taking place and when exercises are complete for the day.

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