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- Cipher Machines and Cryptology
- Cipher Machines and Cryptology. Technical and historical information on crypto machines and software simulations.
- KL-7 - Wikipedia, the free encyclopedia
- The TSEC/KL-7, code named ADONIS, was a rotor machine encryption system introduced in the 1950s by the U.S. National Security Agency.
- KW-26 - Wikipedia, the free encyclopedia
- The TSEC/KW-26, code named ROMULUS, was an encryption system used by the U.S. Government and, later, by NATO countries. It was developed in the 1950s by the National Security Agency (NSA) to secure fixed teletype circuits that operated 24 hours a day.
- Radio Direction Finding Set AN/TRD-4A - USASA Worldwide Direction Finding Net
- Main Equipment rack AN/TRD-4A Direction Finder Set. Operators spent a considerable amount of time in front of this or newer but similar equipment over the years.
- AN/TRD-15/23 Direction Finding Set - USASA Worldwide Direction Finding Net
- 1-4. Purpose and Use a. Direction Finding Set AN/TRD-23(*) is a radio direction finder system which accurately detects and displays the azimuth?? bearing of radio signals in the 1.
- German WW2 SIGINT/COMINT
- Intercept, DF, analysis, and equipment. Nicely put together overview of basic German SIGINT in WW2
- Radio Receiver R-390A Frequently Asked Questions Page
- The R-390A/URR radio receiver is arguably the best performing high-frequency (HF) receiver of the tube era. Its sensitivity, selectivity, resistance to adjacent strong signal overload and resettability set it far apart from its contemporaries. ...
- Enigma machine - Wikipedia, the free encyclopedia
- Tons of information and links regarding the WWII German Enigma crypto machine...
- Enigma Cipher Machine
- here is no such thing as the Enigma. In fact, Enigma is the brand name of a series of cipher machines, developed before and during WWII, some of which are compatible with each othe....
- Boeing RB-47 / ERB-47H Stratojet - Spy flights
- However, although the RB-47E conducted a variety of spectacular overflights of the Soviet Union during the 1950’s, including Murmansk, the aircraft had a fairly low operational ceiling of 40,000 feet
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