North Korean GPS Jamming
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North Korean GPS Jamming
From Fox News today, via AFP:
US Military Plane Forced Down By North Korean Electronic Attack
SEOUL - A US military reconnaissance plane came under electronic attack from North Korea and had to make an emergency landing during a major military exercise in March, a political aide said Friday. The aide said the plane suffered disturbance to its GPS system due to jamming signals from the North's southwestern cities of Haeju and Kaesong as it was taking part in the annual US-South Korea drill, Key Resolve. The incident was disclosed in a report that Seoul's defense ministry submitted to Ahn Kyu-baek of parliament's defense committee, the aide to Ahn said.
Spokesmen for the defense ministry and US Forces Korea declined to comment. Jamming signals -- sent at intervals of five to 10 minutes on the afternoon of March 4 -- forced the plane to make an emergency landing 45 minutes after it took off, the aide quoted the report as saying.
The signals also affected South Korean naval patrol boats and speedboats, as well as several civilian flights near Seoul's Gimpo area, according to the report.
Seoul mobile users also complained of bad connections, and the military reported GPS device malfunctions as the South and the US were staging the drill, which was harshly criticized by the North.
The Communist state has about 20 types of jamming devices, mostly imported from Russia, and has been developing a new device with a range of more than 62 miles (100 kilometers) near the heavily-fortified border, the Yonhap news agency has said.
Read more: US Military Plane Forced Down By North Korean Electronic Attack
US Military Plane Forced Down By North Korean Electronic Attack
SEOUL - A US military reconnaissance plane came under electronic attack from North Korea and had to make an emergency landing during a major military exercise in March, a political aide said Friday. The aide said the plane suffered disturbance to its GPS system due to jamming signals from the North's southwestern cities of Haeju and Kaesong as it was taking part in the annual US-South Korea drill, Key Resolve. The incident was disclosed in a report that Seoul's defense ministry submitted to Ahn Kyu-baek of parliament's defense committee, the aide to Ahn said.
Spokesmen for the defense ministry and US Forces Korea declined to comment. Jamming signals -- sent at intervals of five to 10 minutes on the afternoon of March 4 -- forced the plane to make an emergency landing 45 minutes after it took off, the aide quoted the report as saying.
The signals also affected South Korean naval patrol boats and speedboats, as well as several civilian flights near Seoul's Gimpo area, according to the report.
Seoul mobile users also complained of bad connections, and the military reported GPS device malfunctions as the South and the US were staging the drill, which was harshly criticized by the North.
The Communist state has about 20 types of jamming devices, mostly imported from Russia, and has been developing a new device with a range of more than 62 miles (100 kilometers) near the heavily-fortified border, the Yonhap news agency has said.
Read more: US Military Plane Forced Down By North Korean Electronic Attack
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RAF also jammed GPS
Obviously North Korea is not the only one as published below by the MOD
The MoD 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.
The MoD 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.
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The commies in North Korea just want the snooping s.o.b's to get out of their windows. If someone comes to my windows trying to pry open my shades, I gonna sock it to them. I gonna shine a blinding light onto their freaking demonic eyes to send them fleeing back to their bat caves. This spy vs spy stuff, raising tensions with war mongering and then selling offensive weaponry to the neighboring sheepish countries are sure going to prime up the floundering economy using the arms industry. It's such a tiring strategy decades in , decades out.
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Having spent a long time supporting the US reconnaissance capabilities in that area, I find this a little hard to believe. A GPS failure would not, I say again, would not, have been a sufficient reason for a decision to land.
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Having spent a long time supporting the US reconnaissance capabilities in that area, I find this a little hard to believe. A GPS failure would not, I say again, would not, have been a sufficient reason for a decision to land.
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Good job that we didn't rely on GPS and stop training navigators then.....
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this is a new jamming system allegedly with a 100km range
North Korea developing GPS jamming device capable of disrupting signals more than 100 km away
if it jams GPS it could take out comms as well as other systems. This gives an idea of what GPS jamming can do to non-military systems
GPS chaos: How a $30 box can jam your life - tech - 06 March 2011 - New Scientist
North Korea developing GPS jamming device capable of disrupting signals more than 100 km away
if it jams GPS it could take out comms as well as other systems. This gives an idea of what GPS jamming can do to non-military systems
GPS chaos: How a $30 box can jam your life - tech - 06 March 2011 - New Scientist
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reading a bit more, I suspect this new device spoofs GPS signals rather than simply jams them.
With simple jamming, you'd know as the GPS would simply stop working. With spoofing, you wouldn't know if you had a valid signal or not. Or where you were (or not...)
I remember around thirty years ago reading a translation of a declassified Russian report (it had been released in a Russian journal) of how they'd spoofed Loran-type beacons around the Black Sea, which ended up with a Hercules losing the plot and getting shot down over Soviet territory. From memory it was a USA aircraft operating out of Turkey on an electronic recce flight- and until the release of the story it was an unexplained loss as the crew incorrectly reported their location right up to losing contact.
If the North Koreans were trying similar tricks it would explain the emergency landing.
With simple jamming, you'd know as the GPS would simply stop working. With spoofing, you wouldn't know if you had a valid signal or not. Or where you were (or not...)
I remember around thirty years ago reading a translation of a declassified Russian report (it had been released in a Russian journal) of how they'd spoofed Loran-type beacons around the Black Sea, which ended up with a Hercules losing the plot and getting shot down over Soviet territory. From memory it was a USA aircraft operating out of Turkey on an electronic recce flight- and until the release of the story it was an unexplained loss as the crew incorrectly reported their location right up to losing contact.
If the North Koreans were trying similar tricks it would explain the emergency landing.
JamesD
It was one of the first Herc losses excluding prototypes / test aircraft etc:
ASN Aircraft accident Lockheed C-130A-II Hercules 56-0528 Sasnashen
2P
It was one of the first Herc losses excluding prototypes / test aircraft etc:
ASN Aircraft accident Lockheed C-130A-II Hercules 56-0528 Sasnashen
2P
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.
Wonder what the purpose was? If the locals only needed 32dB resistance and yet years ago we had well over 40dB resistance on military kit, then this is pretty low level stuff.
The New Scientist article was very interesting. Thanks for the link.
The MoD has informed Ofcom of the following GPS jamming exercise:
Of course GPS does not transmit in an Internationally allocated part of the radio spectrum, therefore it is like Radio Caroline, a "Pirate" and on that basis the MOD get away with its jamming trials.
Taking this a stage further, if it is essentially an illegal station, surely all the government depts that utilise it are condoning illegal activity if not acting illegally themselves. Whatever happened to Galileo?
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if you dig a bit, you find that several various jamming trials have occured.
Here's advice warning of a series at STANFORD TRAINING AREA, EAST ANGLIA
http://www.ead.eurocontrol.int/eadba...2011-09-08.pdf
reports on trials carried out by the lighthouse authorities. Interesting reading
Maritime Jamming Trial Shows GPS Vulnerabilities | GPS World
Portreath in 2007
MoD boffins in Cornwall GPS-jamming trials ? The Register
Here's advice warning of a series at STANFORD TRAINING AREA, EAST ANGLIA
http://www.ead.eurocontrol.int/eadba...2011-09-08.pdf
reports on trials carried out by the lighthouse authorities. Interesting reading
Maritime Jamming Trial Shows GPS Vulnerabilities | GPS World
Portreath in 2007
MoD boffins in Cornwall GPS-jamming trials ? The Register