W15P7T-27-R-HMFT_RFI_Questions Answers_14Oct2026.xlsx
XLSX spreadsheet 13 KB Posted
- Solicitation number
- W15P7T-27-R-HMFT-R
About this file
This file is a Questions and Answers document associated with an Army Contracting Command Request for Information (RFI) for HEMP-hardened medium fixed satellite communications earth terminals. The RFI Q&As clarify technical requirements and system scope for prospective contractors responding to Solicitation No. W15P7T-27-R-HMFT, with responses due by October 19, 2026 (extended deadline).
The Government seeks production, installation, and sustainment support for up to nine HEMP-hardened satellite communications terminals operating in X-Band with selective polarization capability (either Left Hand or Right Hand Circular Polarization, but not simultaneously). Key technical requirements include a complete L-Band to X-Band transmit signal chain and X-Band to L-Band receive signal chain, multi-carrier terminal capability with intermodulation products meeting MIL-STD-188-164C CN2 standards, and comprehensive HEMP hardening in accordance with MIL-STD-188-125-1A. The contractor is responsible for providing RF/IF electronics, antenna, antenna control system, terminal Monitor and Control system, and HEMP hardening measures including shelter Point of Entry Protection Devices and Special Protective Measures for Mission Critical Systems, while the Government retains responsibility for the radome, shelter main barrier, prime power PPDs, HEMP vestibule, and Environmental Control Units. On-site SME technical support is noted as a potential contract option. Responses should be submitted in PDF or Microsoft Word format to Dr. Renee J. Bayton and Licinda M. Peters at the Army Contracting Command Aberdeen Proving Ground.
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Other files
| File | Type | Posted |
|---|---|---|
| RFI_Army HEMP HMFT Terminal_28Sept2026.docx | DOCX document | |
| PDF of posting.pdf |
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RFI Q&As W15P7T-27-R-HMFT - Request for Information - Submitted Questions and Answers
| Page # or Section Reference | Question | Government Answer | |
| 1 | 2.1 Production | RFI states “The Government will perform installation of the terminal with technical support from the supplier”. Will we be required to have personnel on standby for on-site support? | The On-Site SME technical support will most likely be a contract option. |
| 2 | 1.0 Description | RFI states that the terminal will have selective polarization. This alludes to the terminal not having simultaneous polarization operation. Can the government confirm they want to operate either Left Hand Circular Polarization (LHCP) or Right Hand Circular Polarization (RHCP) but not both simultaneously? | Selective Right Hand or Left Hand Polarization Operation is required but not both Polarizations operating simultaneously. |
| 3 | 2.1 Production | Will installation include electronics? (i.e, amplifiers, LNA/LNBs, etc.) | Complete L-Band to X-Band transmit signal chain and complete X-Band to L-Band receive signal chain are required. |
| 4 | 2.1 Production | Will installation include any ancillary components? (i.e., deicers, radomes, etc.) | The contractor is to provide only the RF/IF electronics, antenna, antenna control system, terminal Monitor and Control (M&C) system, and HEMP hardening measures including shelter Point of Entry (POE) Protection Devices (PPDs) (other than prime power PPDs), shelter shield monitoring system, and Special Protective Measures (SPM) for Mission Critical Systems (MCS) outside of the shelter. Radomes and deicers are not required. |
| 5 | 1.0 Description | What portion of the antennas needs to be HEMP hardened? | All mission critical antenna functions must be HEMP hardened in accordance with MIL-STD-188-125-1A including all RF electronics and all antenna control system components required to continue satellite tracking and satellite communications after a HEMP event. |
| 6 | 1.0 Description | X-band is mentioned - would the application be single carrier or multi-carrier? We're asking to determine if the antenna needs to be Low PIM X-band. | The HMFT is a multi-carrier terminal. PIMs and all other sources of transmit intermodulation products in the receive band must meet the requirements of MIL-STD-188-164C CN2. |
| 7 | General information | We didn't see any requirement for fiber. Also, will these components also require HEMP compliance? | Modems will be collocated with the RF/IF equipment within the HEMP Shelter and will employ a coaxial L Band Interface. The contractor may choose to employ fiber-optics between the shelter and the antenna as part of their HEMP hardened Inter-Facility Link (IFL). |
| 8 | Reference page 2 | Please clarify whether the HEMP hardening requirement under MIL-STD-188-125A Revision A applies to the complete Medium Fixed Terminal system, including the antenna and outdoor RF components, or whether compliance may be achieved through HEMP protection of the terminal's mission-critical electronics, shelter, interfaces, and associated equipment. | The contractor is responsible for HEMP hardening all mission critical antenna functions in accordance with MIL-STD-188-125-1A including all RF electronics and all antenna control system components required to continue satellite tracking and satellite communications after a HEMP event. The contractor is also responsible for providing PPDs in accordance with MIL-STD-188-125-1A for all shelter penetrations required for the shelter to antenna IFL. The contractor is also responsible for ensuring that the contractor furnished equipment located in the shelter is capable of withstanding the residual internal stress from HEMP energy attenuated by the PPDs to levels allowable by MIL-STD-188-125-1A. Other portions of the system including the radome, shelter main barrier, shelter prime power PPDs, HEMP vestibule and ECUs are the responsibility of the Government. |
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