KGV-68 (Nobleman)

The KUTA family includes the KG-66/66A and KGR-66 devices and NOBLEMAN refers to the KGV-68. These devices, along with the KGR-68 and KGV-68B, are used to secure weapon systems, aircraft telemetry, and data link encryption applications at test ranges. Additionally, with prior National Security Agency (NSA) approval, KUTA/NOBLEMAN units can be used for remotely staffed and unstaffed, high-risk, data link encryption applications on a case-by-case basis.

KGV-68 is an embeddable, half-duplex COMSEC module capable of encrypting and decrypting serial, pulse-code modulation (PCM) data in airborne communications systems. It consists of a small, high-speed, lightweight, low-power, embeddable cryptographic 36-pin hybrid module. All inputs and outputs of the KGV-68 interface with Transistor-Transistor Logic (TTL) technology. The KGV-68 is no longer in production.

KGV-68B is a new embeddable Multi-Chip Module designed to satisfy stringent user size, weight, and power requirements for the next generation telemetry and special Signal  Intelligence (SIGINT) applications. It is an upgrade of the KGV-68 with enhanced data  rates in a surface-mounted, leaded flat pack, but does not have the same form, fit,  and function as the KGV-68. It is intended to secure missile and aircraft telemetry and wideband data link encryption applications. The KGV-68B is scheduled for  production 3QFY99.

The KUTA/NOBLEMAN family is interoperable with the KG-67, KG-135, and SO-66 (Mode B only), and accepts key via the AN/CYZ-10, KOI-18, KYK-13, or KYX-15A. It is certified to encrypt/decrypt up to SECRET; however, two devices can be used in an upgrade configuration to achieve a higher level of classification. KUTA/NOBLEMAN units are UNCLASSIFIED controlled cryptographic item (CCI) when unkeyed. When keyed, their classification equals that of the key installed.


Physical Characteristics
EQUIPMENT HEIGHT (in) WIDTH (in) Dept (in) Weight (oz) Data Rate
KGV-68 2.0  1.0   .25  .86 oz  50 bps to 10 Mbps
KGV-68B  1.0  1.0  .125  .50 oz  0 to 50 Mbps


             Operational: 700 mW (maximum) at 5.2 Vdc @ 50 Mbps
             Standby: 3.4 mW (maximum) at 6 Vdc battery

 MTBF:  28,500 hours for missile environment (95°C)
             194,200 hours for missile environment (45°C)

Manufacturer: Teledyne Electronics Technologies for both KGV-68 and KGV-68B

Unit Price:

KGV-68 - No Longer Produced
KGV-68B - $450

Source: US Navy COMSEC web page.

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Jan 13/01