The KGV-11/11A/11C are general-purpose, half-duplex, removable communications security (COMSEC), transmission security (TRANSEC) modules that protect various control channels and orderwires for the following systems:

     Demand Assigned Multiple Access (DAMA)
     Navy Extremely High Frequency (EHF) Satellite Communications (SATCOM) Program (NESP)
     Extremely Low Frequency (ELF)
     Joint Surveillance Target and Attack Radar System (J-STARS)
     Universal Modem System (UMS)
     Multifunctional Information Distribution System (MIDS)
     Tactical Information Broadcast Service (TIBS)
     Versa Module Europa Backplane Standard (VME) Integrated Communications System (VICS)
     Cooperative Engagement Capability (CEC).

The KGV-11 is a National Security Agency (NSA) COMSEC device to incorporate the smart fill protocol (DS-101) using the AN/CYZ-10 Data Transfer Device for its key loading. It supports over-the-air rekey and can provide automatic key rollover at the end of the cryptographic period. A KGV-11 is intended for integration into a host system that controls its operation (e.g., clock and status indicators). The KGV-11 can accommodate time-division multiple access communications systems, broadcast, point-to-point, satellite command and control, and secure conferencing systems; it is deployed to strategic and tactical ground, air, surface, and subsurface platforms. It is interoperable with the KGV-8 family, COMSEC/TRANSEC Integrated Circuit (CTIC) DS-101 Hybrid (CDH), KG-66, KGR-66, KGV-68, KI-37, KGV-15, KGV-13, and KG-87. It is also certified to encrypt and decrypt up to TOP SECRET. It is an UNCLASSIFIED controlled cryptographic item (CCI) when unkeyed. When keyed, its classification equals that of the key installed.

Photo courtesy of U.S.N.


Physical Characteristics
Height (in) - 6.00
Width (in) - 5.00
Depth (in)   2.00
Weight (lb)2.70

Data Rate:16 Kbps to 10 Mbps


At 95°C and 10 Mbps operating speed
Operational: 7.5 to 9.0 volt RED at 35 mA
5.7 to 6.0 volt RED at 270 mA
5.7 to 6.0 volt BLACK at 10 mA
Standby Dynamic: 7.5 to 9.0 volt RED at 35 mA
Standby Quiescent: 7.5 to 9.0 volt RED at 1mA


Tactical ground, air, and sea applications
Radiation hardened to tactical and strategic levels


Ground Fixed @ 25°C: 406,216 hours
Naval Sheltered @ 70°C: 125,496 hours
Uninhabited Airborne Fighter @ 100°C: 34,654 hours

Manufacturer: Group Technologies Corp.

Unit price:  KGV-11C - $14,950 (last NSA contract price)

Source: US Navy COMSEC web page.

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Jan 12/ 01