X-COM's latest version Spectro-X 4.0, lets users visualize and analyze up to four recorded RF and microwave spectrum files at the same time making it a valuable tool for system and test engineers developing and analyzing the performance of radar, ELINT, SIGINT, ECM, ESM, multi-channel communications, telemetry, and MIMO systems, or for characterizing and testing conventional and AESA radar systems.
The system is being designed to carry a variety of ISR payloads including SAR, EO, and SIGINT.
The primary reconnaissance payload was an Itek panoramic camera, but in principle it could also carry infrared cameras or a SIGINT payload.
SAMOS-F or Air Force Program 102 refers to a series of SIGINT reconnaissance satellites launched and operated by the United States Air Force and National Reconnaissance Office during the 1960s.
;TALENT KEYHOLE (TK): TK covers space-based IMINT (Imagery intelligence), SIGINT (Signals intelligence), and MASINT (Measurement and signature intelligence) collection platforms; related processing and analysis techniques; and research, design, and operation of these platforms (but see Reserve below).
The modernisation included new engines, combat control systems, fire control systems, SIGINT and navigational systems.
Today, the Strategic Reconnaissance Command of the German Armed Forces operates a wullenweber array in Bramstedtlund with a diameter of 410m as one of its three stationary Sigint battalions.