- Country: USA
- Summary: Direction Finding (DF) System Upgrade
- UST Ref No: 123993223
- Deadline: 04 Oct 2025
- Financier: Self Financed
- Purchaser Ownership: Government
- Tender Value: Refer Document
- Notice Type: Tender
- Document Ref. No.: 70Z03825IE0000007
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- Description:
- Description
Purpose: The Coast Guard is issuing this request for information (RFI) for market research purposes to identify parties having an interest in providing upgraded Direction Finding (DF) system capabilities with the following qualifications:
• Technical resources and expertise to support second-generation COSPAS-SARSAT beacon detection requirements
• Current industry practices for wideband DF systems integration across broad spectrum requirements
• Experience with Common Avionics Architecture System (CAAS) integration for Direction Finding (DF) System Upgrades
The upgraded DF system must be capable of detecting second-generation COSPAS-SARSAT Emergency Position Indicating Radio Beacons (EPIRBs). Additionally, the system must maintain form, fit, and function compatibility with existing DF-500 systems across multiple Coast Guard aircraft platforms: MH-65E, MH-60T, HC-130J, and HC-144B.
Key Technical Challenges: Changing technologies in distress beacons has forced the Coast Guard to look for alternatives to traditional direction finding (DF) systems. Second Generation COSPAS-SARSAT beacons use a direct sequence spread spectrum (DSSS) waveform, not currently detectable by USCG aircraft DF systems. This requires more flexible receivers and wideband antenna arrays that are capable of DF across a broad spectrum of signals from 30MHz to 406.9975 MHz, including cellular frequencies for potential private ship distress scenarios where beacons may not be available.
The DF system must provide capability for the following types of missions:
International distress frequencies 121.5 MHz and 243.0 MHz Marine Radio Channel 16 Digital Selective Calling (DSC) Marine Radio Channel 70 Automatic Identification System (AIS) Search and Rescue Transmitter (SART) and Man Overboard (MOB) 161.975 MHz and 162.025 MHz COSPAS-SARSAT 406MHz First and Second-Generation Beacons Manually entered MMSIThe DF system includes the following functionalities:
AR... - Documents:
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CLICK HERE TO LOGINDirection Finding (DF) System Upgrade - USA Tender
The HOMELAND SECURITY, DEPARTMENT OF | US COAST GUARD, a Government sector organization in USA, has announced a new tender for Direction Finding (DF) System Upgrade. This tender is published on USARFP under UST Ref No: 123993223 and is categorized as a Tender. Interested and eligible suppliers are invited to participate by reviewing the tender documents and submitting their bids before the deadline on 2025-10-04.
The estimated tender value is Refer Document, and full details, including technical specifications and submission requirements, are provided in the official tender documents. Ensure all submissions meet the criteria outlined to be considered for evaluation.
