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PostPosted: Thu Mar 24, 2011 4:20 pm 
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Joined: Fri Sep 23, 2005 4:14 pm
Posts: 2762
Location: In a secret lab beneath the Tower of Fettle...
Probably won't affect anyone here, but you lot are pretty northerlish so FYI: The boffins are trying out their latest GPS widgerators. GPS will be jammed some days in July, as per this:

Quote:
The UK Ministry of Defence has informed Ofcom of the following GPS jamming
exercise:

Dates: Jamming will be conducted on a maximum of 3 week-days in the period
10-21 July 2011.Times: 0900 -1730 BST.

Location: Jamming aircraft will orbit at 10,000ft above mean sea-level
(AMSL) along a 50nm flightpath on a heading of 270°T from Kirkwall,
starting 10nm to the west of Kirkwall and ending 60nm to the west of
Kirkwall

Possible areas affected: The GPS jamming is likely to affect civilian
Standard Positioning Service (SPS) receivers over a large area. A minimum
jammer to signal vulnerability of 30dB has been assumed for a civilian
receiver. Signal theory suggests that a SPS civilian receiver should have
approximately 32dB of jamming resistance.

Safety of Life Operations: Safety of life operations will take precedence
over exercise activities at all times. To this end, the AWC is open to
further discussion with any official recipient on the potential
implications
of this jamming exercise.

Contact point: During the exercise, any official recipient (or their
delegated representative) and any member of the Emergency Services may
terminate the jamming for safety reasons by calling the contact numbers
below:

(1) Primary: Duty Controller Flying (TLT), RAF Kinloss - Tel: 01309 617857.

(2) Backup: Duty Controller Flying (TLT), RAF Lossiemouth - Tel: 01343
817428.

(3) Tertiary: Duty Air Surveillance Officer, National Air and Space
Operations Centre Tel: 01494 494812.

Note: Safety of life operations will take precedence over exercise
activities at all times.

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