Tuesday, September 6, 2011

Long Range Recon Patrol LRRP, Vietnam War


North Korea upgrades jamming devices:report


North Korea is upgrading jamming devices to disrupt South Korean military communications, Yonhap news agency said, citing a defence ministry report.
The communist state has some 20 types of jamming devices mostly imported from Russia and it has been developing a new device with a range of more than 100 kilometres (60 miles), the South Korean news agency said on Tuesday.

Yonhap cited a defence ministry report to the parliamentary defence committee. The ministry declined to comment, saying the report was confidential.
North Korea is known to have deployed jamming devices to the heavily-fortified border that are capable of disrupting Global Positioning System (GPS) signals within 50 to 100 kilometres, it said.
The North is thought to have been responsible for the intermittent failure of GPS receivers on naval and civilian craft along the west coast in August 2010.
South Korea's then-defence minister Kim Tae-Young said at the time that the devices could disrupt guided weapons and posed "a fresh security threat" to Seoul.