RFoF Link System - Statement of Work_16July25.pdf

STATEMENT OF WORK (SOW)

RF OVER FIBER (RFoF) SYSTEM PROCUREMENT FOR YOKOTA AIR BASE

1.0 INTRODUCTION AND BACKGROUND

This Statement of Work (SOW) outlines the requirements for the procurement, integration, validation, and delivery of a fully integrated, turnkey, four-channel programmable bi-directional RF over Fiber (RFoF) system to support radio communications at Yokota Air Base. The system shall enable seamless integration with AN/PRC-117G multiband networking manpack radios and AN/PRC-167 dual-channel radios, ensuring reliable bidirectional transmission of RF signals over fiber optics without degradation. This effort aligns with operational needs for enhanced communication capabilities in a military environment, adhering to relevant Department of Defense (DoD) standards and best practices.

2.0 OBJECTIVES

The primary objectives of this SOW are to:

• Deliver a high-performance RFoF system that meets specified frequency coverage, channel requirements, and environmental standards.

• Ensure immediate compatibility with designated radios and antennas, including power amplification and protective features.

• Provide comprehensive documentation, testing verification, and support to facilitate rapid deployment and maintenance.

• Achieve delivery within 3-4 months post-contract award to minimize operational disruptions.

3.0 SCOPE OF WORK

The Contractor shall furnish all labor, materials, equipment, and services necessary to procure, integrate, validate, and deliver the RFoF system. The scope includes:

• System design and preconfiguration for integration with AN/PRC-117G and AN/PRC- 167 radios and antennas.

• Provision of necessary accessories, such as low-loss coaxial cables, attenuators, transmit/receive (T/R) switching mechanisms, combiners (if required), and amplifiers.

• Performance of factory acceptance tests to validate compliance with all specifications.

• Delivery of two enclosures: an indoor 19-inch rack-mountable radio-side unit and a ruggedized outdoor antenna-side unit.

Out of Scope: This SOW does not include onsite installation, ongoing maintenance beyond the warranty period, or modifications to existing infrastructure at Yokota Air Base unless explicitly negotiated as a change order.

4.0 TECHNICAL REQUIREMENTS

The RFoF system shall meet or exceed the following performance criteria and features:

4.1 System Compatibility and Interfaces

• Compatibility with AN/PRC-117G radios utilizing band-specific antenna ports with shared transmit and receive capabilities through coaxial connectors (TNC: 30-512 MHz, N-type: 225-2000 MHz, BNC: 225-400 MHz for SATCOM).

• Compatibility with AN/PRC-167 radios utilizing shared 50-ohm TNC connectors with dual-channel operations.

• Accommodation for antennas supporting single-port bidirectional RF signals.

• Bidirectional fiber-optic transmission without degradation across standard operational waveforms, including SINCGARS, HAVEQUICK, HPW, DAMA, IW, ANW2, SATURN, P25, MIL-STD-188-181B, L-TAC, and MUOS-ready configurations.

• Integrated T/R switching mechanisms (e.g., duplexers or circulators as frequency-appropriate) for half-duplex radio operation, with no more than 1 dB insertion loss.

• Power amplification capabilities, either integrated or compatible with external AR- 50SAT75 booster amplifiers, supporting up to 75W SATCOM and 50W line-of-sight (LOS) outputs.

• Accommodation for external attenuators (30 dB, rated at ≥20W continuous, 50 Ohms impedance) to protect optical components.

4.2 Optical and Multiplexing Features

• Multiplexing of four bidirectional channels over a single-mode fiber pair using any suitable technology (e.g., WDM, CWDM) for enhanced isolation and performance.

• Fiber optic compatibility with G.652 single-mode fiber for spans up to 10 km.

4.3 Performance Specifications

• Frequency Coverage: 30 MHz - 2.6 GHz.

• Channels: Four independently adjustable bidirectional RF channels.

• RF Input Power: Up to 20W PEP, with integrated or external 30 dB attenuators.

• Link Gain: 0 ± 3 dB, adjustable in 0.5 dB increments.

• Frequency Response Uniformity: ±1.2 dB across the operational bandwidth.

• Input Compression Threshold: +46 dBm (30 dB attenuation).

• Spurious Signals: ≤ -80 dBm (SFDR ≥100 dB/Hz^(2/3)).

• VSWR: ≤1.5:1 at all RF interfaces.

• Impedance: 50 Ohms nominal.

• Overdrive Protection: Capable of handling 20W RF input with protective attenuation while maintaining clean signal amplification.

4.4 Enclosures and Environmental Standards

• Indoor radio-side enclosure: 19-inch rack-mountable, 1U height.

• Outdoor antenna-side enclosure: Ruggedized, not exceeding 500 mm x 500 mm x 100 mm, meeting MIL-STD-810G and IP67 standards.

• Operating Temperature: -40°C to +85°C.

• Storage Temperature: -40°C to +85°C.

4.5 Power and Management

• Power Requirements: Dual redundant 110/220 VAC, compliant with MIL-STD-704 surge protection, and compatible with BB-2590/U battery systems.

• Management Interface: SNMP v3 over RJ-45 Ethernet, with secure remote management and Web UI providing real-time diagnostics, adjustable RF parameters, and alarm notifications.

• System Configurations: Independent per-channel gain control, built-in attenuation, and optional Automatic Gain Control (AGC).

4.6 Compliance and Certifications

• EN60950-1 (Safety).

• EMC ETSI EN 300386.

• FCC Part 15B.

• MIL-STD-461F (EMI/EMC).

• MIL-STD-810G (Environmental).

• Connectors: LC/APC optical (MIL-STD-83526 compliant) and RF connectors matching radio standards (TNC/N-Type, with BNC adapters if necessary).

5.0 DELIVERABLES

The Contractor shall provide the following deliverables:

• One (1) turnkey RFoF system meeting all specified requirements.

• Comprehensive documentation, including:

o Installation and integration manuals with details on radio and amplifier interfacing, instructions for AN/PRC-117G and AN/PRC-167 integration, and signal flow schematics for transmit and receive pathways.

o Manufacturer warranty documentation.

o Troubleshooting guidance addressing waveform integrity, power management, and RF compatibility issues.

o End-to-end test reports demonstrating adherence to insertion loss (<2 dB total), latency (<50 µs optical), and electromagnetic compatibility per MIL- STD and FCC standards.

• Verified performance and compliance testing documentation.

• Warranty documentation and terms (standard one-year warranty covering labor, materials, and compatibility defects, including remote troubleshooting support within 72 hours and optional onsite escalation).

• Training materials or sessions for system installation, management, troubleshooting, and maintenance.

6.0 PERIOD OF PERFORMANCE

The Contractor shall complete all work under this SOW within 3-4 months following contract award. Factory acceptance tests shall validate RF compatibility, waveform performance, latency, insertion loss, and EMI/EMC compliance prior to delivery.

7.0 PLACE OF PERFORMANCE

Primary performance shall occur at the Contractor's facilities, with delivery to Yokota Air Base, Japan. Any required coordination for integration testing shall be conducted remotely or as mutually agreed.

8.0 ACCEPTANCE CRITERIA

Acceptance shall be based on:

• Successful completion of factory acceptance tests confirming compliance with all technical specifications.

• Delivery of all required deliverables in acceptable condition.

• Verification of system performance through end-to-end test reports.

• Final acceptance shall occur upon receipt and inspection at Yokota Air Base, with any discrepancies resolved within 30 days.

9.0 ASSUMPTIONS AND CONSTRAINTS

• The Government will provide access to necessary radio specifications and interfaces for integration purposes.

• No changes to the scope will be made without a formal change order approved by both parties.

• The Contractor assumes standard industry practices for system validation and assumes no liability for misuse post-delivery.

10.0 GOVERNMENT FURNISHED ITEMS

None identified at this time. The Contractor shall notify the Government if additional items are required.

11.0 WARRANTY AND SUPPORT

The Contractor shall provide a one-year warranty covering defects in labor, materials, and compatibility. Support includes remote troubleshooting within 72 hours of notification and optional onsite escalation at the Government's expense.