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Advanced Extremely High Frequency (EHF) (U)

Overview (U):

(U) The Advanced EHF program provides the follow-on capability to the Milstar satellite program. It provides the basis for the next generation military communications satellite system, for survivable, jam-resistant, worldwide, secure, communications for the strategic and tactical warfighter. The system replenishes the Milstar constellation in the EHF band.

Description (U):

(U) The Advanced Extremely High Frequency (EHF) program provides the follow-on capability to the Milstar I and II satellites. Advanced EHF uses standardized spacecraft components which will be launched on a Medium Launch Vehicle (MLV). The requirement is for the Advanced EHF satellite to have one single channel protected data rate of six to eight Mbps using the existing Milstar II Medium Data Rate (MDR) waveform. This development will be an incremental step towards the single channel protected service on the EHF Replenishment satellite that will provide 10s of Mbps. The Advanced EHF capability will be available for first launch not later than 2006.

User Impact (U):

(U) Without an Advanced EHF system to replace Milstar, the DoD will be left without any protected communications capability to support the NCA, SIOP, and many other strategic and tactical military requirements.

Programmatics (U):

(U) Programmed.

(U) Organizations and Funding:
  • (U) Air Force: Funding Source.

Images (U):

Added Value to the WarfighterAFSPC Vision
This Table Is Unclassified.

Related Initiatives (U):
AN/USC-38 (V)AN/USC-38 (V)
Automated Comms Management SysAutomated Communications Management System (ACMS)
Command Post Terminals (CPTs)Command Post Terminals (CPTs)
EELV (MLV)Evolved Expendable Launch Vehicle (EELV) Medium Lift Vehicle (MLV)
EHF Replenish SatExtremely High Frequency (EHF) Replenishment Satellite
ICBM EHF TerminalsIntercontinental Ballistic Missile (ICBM) EHF Terminals
Milstar IIMilstar II
SCAMP TerminalSingle Channel Anti-Jam Man Portable (SCAMP) Terminal
SMART-TSecure Mobile Anti-Jam Reliable Tactical-Terminal (SMART-T)
This Table Is Unclassified.

Related Requirements (U):None.

Related Categories (U):
EHF Satellite SystemsExtremely High Frequency (EHF) Satellite Systems
MILSATCOMMilitary Sattelite Communications
This Table Is Unclassified.

Road Map Placements (U):

Major DoD Space ProgramsEvolution of the Selected Space Programs
National Security Space Road MapIntegrated System Road Map
This Table Is Unclassified.

Requirements, Funding and Additional Hotlinks (U):

RDT&E Budget Item Project 4050
Advanced EHF
Advanced EHF (Data)
This Table Is Unclassified.

Lead Office (U):

(U) Air Force.

(U) DoD: OASD(C3I), Pentagon, Washington, DC
(U) Service Staff: Air Force: SAF/AQS, HQAF/XOR Pentagon; HQAF/SCM, Pentagon, Washington, DC
(U) Major Command: AFMC, Space and Missile Systems Center, Los Angeles AFB, CA
(U) Program Management: AF PEO (Space), Pentagon, Washington, DC; MILSATCOM Joint Program Office, Los Angeles AFB, CA

Point of Contact (U):

(U) Maj Steven Cliatt, SMC, Open Phone: (310) 336-4475.

Date Of Information (U):

(U) 31 October 1997

(U) Road Map Production Date: 12 July 1999

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