Another mission was launched in 1967 to place a similar device on the Nanda Kot. This mission was successful but a couple of years later another problem cropped up; snow would pile up over the antenna and render it blind. So Kohli and a SFF team were sent once again to bring it down, this time they retrieved it successfully. In October 1967 the Chinese began testing an ICBM capable of reaching targets 6000 miles away. There was renewed urgency to find out more. So SFF mountaineers went off on one more mission in December 1969 to successfully place a gas powered device on an undisclosed mountain supposedly in Chinese controlled areas. But by the following year, the US had the first generation of the TRW spy satellites in place and did not have to rely on the old ELINT devices.