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Joint Tactical Radio System Enhanced MBITR (JEM)
Joint Tactical Radio System Cluster 2

JTRS Cluster 2 was the interim JTRS handheld solution known as the Multiband Intra-Team Handheld Radio (MBITR). This program was subsequently renamed Joint Tactical Radio System Enhanced MBITR (JTRS JEM). Cluster 5 (subsequently JTRS Handheld, Manpack, Small Form Fit or JTRS HMS) was to be the final JTRS handheld solution. JTRS JEM was being developed as an Engineering Change Proposal to the MBITR program. It would provide a nominal JTRS compliant capability to the joint warfighter beginning with a production decision during third quarter FY05.

The strategy for Cluster 2 handheld radios comprised evolutionary development of the existing MBITR handheld radio. The MBITR would be adapted for JTRS Software Communication Architecture (SCA) compliance, incorporation of programmable COMSEC, and incorporation of the APCO-25 software waveform. These handheld sets would include an external GPS module.

Cluster 2, handheld radios would be developed through adaptation of the MBITR handheld radio to make it SCA compliant. Key features of these sets included:

  • Providing DoD teams with the ability to communicate on a user selected frequency (30-512 MHz) utilizing a single handheld radio
  • Waveforms including VHF/FM, VHF/AM, UHF/AM, UHF/FM (LOS). (3) User-reprogramability in operational environment
  • Existing user location in either GPS or MGRS.
  • Set is 33 cubic inches, 31 ounces.
  • 20 meter and 2 meter immersible versions
  • Embedded programmable COMSEC
  • Reduction of the combat load for individual operators

JTRS Cluster 2 was managed by the United States Special Operations Command (SOAL-IIS-PMC4). The cluster would acquire handheld radios for the Army, Navy Marine Corps and Air Force.

The Cluster 2 handheld radios were being produced by Thales Communications in accordance with an Engineering Change Proposal for an existing DoD contract.

The etimated cost of a Cluster 2 unit was $9 thousand per radio (FRP- full rate production).

Enhanced MBITR Features:

  • 30-512 MHz
  • AM/FM; Voice/Data
  • Selectable RF Output Power (100 mwatts to 5 watts
  • US Type I COMSEC
  • Immersible
  • Less than 2 pounds, 34 cubic inches
  • Optional SINCGARS SIP, HAVEQUICK II, ANDVT, and Retransmit
  • JTRS SCA 2.2 Compliance
  • No JTRS Waivers Required
  • Software Programmable INFOSEC
  • JTRS Waveform Library Compatible to include Porting of Project 25 Waveform


Multi-Band Inter/Intra Team Radio (MBITR)

The MBITR acquisition program was completed in less than three years. The significant acquisition timeline compression was accomplished primarily because of the close government, industry, and operational user relationships established early in the program. Dialog between the program office and candidate developers led to definition of suitable technologies to satisfy MBITR requirements. A competitive, cost sharing development contract with production options was awarded to Thales Communications, Inc of Clarksburg, Maryland. USSOCOM accepted cost accountability for management and the contractor assumed total risk for the functional design.

MBITR Features:

  • 30-512 MHz
  • AM/FM; Voice/Data
  • Selectable RF Output Power (100 mwatts to 5 watts
  • US Type I COMSEC
  • Immersible
  • Less than 2 pounds, 34 cubic inches
  • Optional SINCGARS SIP, HAVEQUICK II, ANDVT, and Retransmit




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