The effects of any budget/program decisions made since the information was collected during 1997-98 are NOT reflected in the National Security Space Road Map (NSSRM).

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(U) Defense Satellite Communications System (DSCS) Service Life Enhancement Program (SLEP)

Description (U):

(U) The DSCS Service Life Enhancement Program (SLEP) is designed to expand tactical system capacity by upgrading the last four of the five unlaunched satellites. The SLEP includes an upgrade to channels 1-6 with 50 watt traveling wave tube amplifiers, an upgrade to the solar cells, a refinement of gain step attenuation, and an incorporation of a routing switch mod that allows channel 5 to be configured to either the gimbal dish antenna or multi-beam antenna. The SLEP program will increase the overall system capacity to tactical users by more than 200%. The first DSCS SLEP launch is planned for FY98.

User Impact (U):

(U) The Defense Satellite Communications System (DSCS) provides Super High Frequency (SHF) wideband and anti-jam satellite communications supporting critical national and strategic requirements for the National Command Authorities (NCA), ground mobile forces of all services, White House Communications Agency (WHCA), Navy, NATO, UK, and Diplomatic Telecommunications Service.

Programmatics (U):

(U) Programmed.

• (U) IOC: 05/1998 (3QFY1998).
• (U) Termination: 01/2009 (2QFY2009).
  
  (U) The termination date of 01/01/2009 is an approximate date based upon the projected IOC date for Advanced Wideband Satellite (01/01/2008) an upgraded capability to DSCS SLEP.

Images (U):

This Table Is Unclassified.

Name	Title
DSCS III	Defense Satellite Communication System (DSCS) III

Related Initiatives (U):

This Table Is Unclassified.

Name	Title
Adv Wideband Satellite (AWS)	Advanced Wideband Satellite (AWS)
AN/WSC-6(V)X	AN/WSC-6(V)X
Atlas	Atlas
DDS	Defense Dissemination System (DDS)
DISA STEP	Defense Information Systems Agency (DISA) Standard Tactical Entry Point (STEP)
DSCS III	Defense Satellite Communications System (DSCS) III
Eastern Range	Eastern Range
Lightwt Multi-band Sat Terminal	Lightweight Multi-band Satellite Terminal (LMST)
MIDAS	Multiplexer Integration and DCSS (Digital Communications Satellite Subsystem) Automation System (MIDAS)
Single Channel Transponder Sys	Single Channel Transponder System (SCTS)
STAR-T	SHF Tri-Band Advanced Range-Extension Terminal (STAR-T)
Wideband Gapfiller	Wideband Gapfiller

Related Requirements (U): None.

Related Categories (U):

This Table Is Unclassified.

Name	Title
MILSATCOM	Military Sattelite Communications
Satellite Operations	Satellite Operations
SHF Satellite Systems	Super High Frequency (SHF) Satellite Systems

Road Map Placements (U):

This Table Is Unclassified.

Name	Title
Major DoD Space Programs	Evolution of the Selected Space Programs
MILSATCOM	SPACE FORCE ENHANCEMENT: MILSATCOM
National Security Space Road Map	Integrated System Road Map

Requirements, Funding and Additional Hotlinks (U):

This Table Is Unclassified.

Name
Navy EHF SATCOM Program (NESP)
MILSATCOM Homepage

Lead Office (U):

Air Force.

(U) DoD: USD (A&T) and OASD(C3I), Pentagon, Washington, DC
(U) Service Staff: Air Force: SAF/AQS, HQAF/XOR 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) 30 September 1997

(U) Road Map Production Date: 23 June 2001