Lockheed Martin Team Conducts Major Compatibility Test of First Mobile User Objective System Satellite

Lockheed Martin Team Conducts Major Compatibility Test of First Mobile User
Objective System Satellite

SUNNYVALE, Calif., Oct. 19 /PRNewswire/ -- Lockheed Martin (NYSE: LMT) has
demonstrated the interface compatibility of the first Mobile User Objective
System (MUOS) satellite's dual legacy and next-generation Ultra High Frequency
(UHF) communications payloads with ground user test terminals.

This major milestone ensures that mobile users of the existing UHF Follow-On
(UFO) system will have a smooth transition to MUOS, which will provide
significantly improved and assured communications for U.S. mobile warfighters.
With the adaptation of state-of-the art 3rd-Generation (3G) mobile technology,
the Lockheed Martin design will deliver simultaneous voice, data and video
services as well as the ability to increase capacity and features over the
life of the program.

The successful test, conducted at Lockheed Martin's Space Systems facilities
in Sunnyvale, Calif., validated the compatibility of the dual UHF payloads
with legacy radios and MUOS test terminals using the newly developed Wideband
Code Division Multiple Access (WCDMA) waveform and ground system. A
simultaneous WCDMA data call and legacy voice call was performed to validate
simultaneous operations of the dual payload configuration.

The test was successfully completed under a multi-beam area communications
environment. Two simultaneous network circuits were established including a
dedicated 25-KHz legacy channel supporting 16 Kbps voice and a WCDMA 5-MHz
channel point-to-network supporting 9.6 Kbps data. The legacy signal was also
subjected to propagation loss due to environmental and atmospheric conditions
to simulate an operational environment.

"This successful satellite-to-terminal test demonstrates that MUOS will be
able to serve legacy communications users for many years to come, effectively
extending the life of current UHF radios," said Mark Pasquale, Lockheed
Martin's MUOS vice president. "We look forward to our continued progress and
delivering this critical capability to the mobile warfighter."

Lockheed Martin Space Systems, Sunnyvale, Calif., is the prime contractor and
systems integrator for the MUOS program. MUOS satellites are being developed
at the company's facilities in Newtown, Pa., with final assembly and test
taking place in Sunnyvale.

MUOS satellites will be the largest of Lockheed Martin's flight-proven A2100
spacecraft series ever built. The first MUOS satellite along with the
associated ground system provided by
General Dynamics C4 Systems, Scottsdale, Ariz., are scheduled for on-orbit
hand-over to the Navy in 2011.

The Navy's Program Executive Office for Space Systems, Chantilly, Va., and its
Communications Satellite Program Office, San Diego, Calif., are responsible
for the MUOS program.

Headquartered in Bethesda, Md., Lockheed Martin is a global security company
that employs about 140,000 people worldwide and is principally engaged in the
research, design, development, manufacture, integration and sustainment of
advanced technology systems, products and services. The corporation reported
2008 sales of $42.7 billion.

Media Contact: Steve Tatum, 408-742-7531; e-mail, Stephen.o.tatum@lmco.com

SOURCE Lockheed Martin

Steve Tatum of Lockheed Martin, +1-408-742-7531, Stephen.o.tatum@lmco.com