A radiotelescope in the sky: the USA-202 ORION satellite 24 September 201730 October 2019 rob1blackops18 Comments An analysis of the USA-202 ORION satellite and its capabilities, based on classified documents.
History of the US high-altitude SIGINT system 31 July 201714 November 2020 rob1blackops6 Comments Following our previous article which described what kind of Soviet emitters the USA could target, here is a timeline of the satellites that performed the collection.
Signal intelligence 101: SIGINT targets 4 June 201728 September 2017 rob1blackops18 Comments A quick overview of the various types of signal intelligence targets, with an emphasis on the Soviet Cold War systems