Bid guide
How to bid on the Expeditionary Very Low Frequency (ExVLF) Transmitter System for the DEPT of the Navy
What the Navy is buying and why it matters
The Department of the Navy is looking for an Expeditionary Very Low Frequency (ExVLF) transmitter system. This system will broadcast data continuously, 24 hours a day, 7 days a week, to maritime and shore-based receivers. The Navy needs a highly reliable solution that can operate in rugged, multi-environment locations.
This opportunity is significant because the Navy anticipates that initial efforts will involve delivering a prototype. There is also potential for follow-on production units to meet long-term operational inventory goals. This means a successful prototype could lead to future contracts.
Key dates and what happens at the deadline
The deadline for submitting white papers, also called solution briefs, is August 13, 2026, at 5:00 AM Eastern Time (2:00 PM Pacific Daylight Time).
Questions about this opportunity were due by July 28, 2026. The government may not answer all questions, and any questions and answers will be posted on the NAVWAR Commercial Solutions Opening (CSO) website.
Who this opportunity suits
This opportunity is suitable for technology firms that can design and deliver a containerized VLF transmitter system. The system must include a power amplification subsystem and a dynamic, automatic tuning element subsystem. It needs to integrate with and automatically tune to a government-furnished Wireless Communications Aerostat (WCA) tethered antenna.
The entire transmitter system must fit within a 20-foot ISO general-purpose freight container and be hardened for rugged environments. Firms with expertise in high-power RF performance, signal generation, control and monitoring systems, deployable mast and feedline systems, and ground plane systems will find this relevant. Experience with interoperability with government-furnished equipment is also key.
How to respond to this solicitation
This is an Area of Interest (AOI) under Naval Information Warfare Systems Command (NAVWAR) Commercial Solutions Opening (CSO) number N0003925S0001. To respond, you need to submit a white paper or solution brief, which is Phase 1 of the CSO process.
To access the full details and prepare your response, click “View original source” to open the opportunity on the portal. If the first click takes you to the portal’s homepage, click it again to go directly to the bid. You may need a free account to view any associated documents.
Tips for preparing a competitive response
Focus your white paper on how your proposed system meets the primary solution attributes, especially the high-power performance, automatic tuning to a tethered antenna, and the requirement for a 20-foot ISO container. Clearly describe how your solution will support 24/7 data broadcast operations in rugged environments.
Consider addressing the desired solution attributes, such as next-generation transmitter technology, smarter station control and automation, enhanced hardening and resiliency, and improved maintainability. If you can offer a Mobile Power Delivery System (MPDS), propose it as a separately priced option. Emphasize how your solution considers long-term sustainment through technical data, supportability, and training.
See the live bid — deadline, agency details, and how to respond
Dates and requirements can change via addenda; always verify on the bid page and at the original source before responding.
View this bid on BiddingSimpleThis guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from DEPT of the Navy; the original posting controls.