ENTR - Embedded National Tactical Receiver |
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The ENTR is a miniature (approx. 3"x5"x1")
receiver, decoder, decryptor which is a proposed member of
the Joint Tactical Terminal (JTT) family of tactical receivers.
It is designed to receive classified intelligence data over
the TRAP Data Dissemination System (TDDS) and/or the Tactical
Data Information Exchange System-Broadcast (TADIXS-B), and/or
the Tactical Information Broadcast System (TIBS). These broadcasts
are transmitted worldwide from UHF satellites or high flying
aircraft. They provide, in near real-time, global and theater
surveillance information for the purpose of cueing sensors
and for integration into databases at various remote operational
field locations.
The ENTR functions in conjunction with a host
computer by plugging directly into the computer's chassis
via its S-Bus (UNIX), or PCI (desktop/laptop) or cPCI (ruggedized)
interface.
The ENTR card contains four separate RF
receivers, two types of demodulators, Viterbi decoder
(K=7 and K=9),
and an NSA certified programmable decryption device called
"Cornfield".
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