# Real-World Spectrum Data and Deployment at a National Scale

Traditional RF and spectrum research faces structural limitations that hinder modern AI development — including limited access to real-world captures, static datasets, poor reproducibility, and synthetic-heavy training environments that fail to reflect real-world signal complexity.

## Hidden Level transforms distributed sensing into a continuously improving national RF data layer.

### from distributed sensors to structured intelligence

## Distributed sensing layer

Passive RF sensors deployed across diverse geographies enable persistent collection in real-world environments, capturing multi-domain signal diversity at scale. Wideband data capture from 800 MHz to 6 GHz.

## Data pipeline with provenance

Every capture is supported by end-to-end traceability, time-aligned and geo-aligned metadata, reproducible capture conditions, and validation and quality scoring.

## Model-connected interfaces

Researchers access the data through APIs for training and inference workflows, benchmarking datasets, curated research subsets, and structured formats compatible with ML pipelines.

### designed for advanced rf & ai research

## Foundation Model Training

Large-scale, diverse RF signal data for pretraining.

## Transfer Learning & Domain Adaptation

Train in one geography. Adapt to another.

## Spectrum Classification & Attribution

label-rich datasets with contextual rare signal behaviors.

### Designed to make your decisions clear.

## Real-world RF data at national scale

01

More than curated simulations - persistent, distributed, sensing.

## Expanding coverage, new edge cases, new environments

02

New coverage, new edge cases, new environments.

## Evaluation-Ready

03

Benchmarking datasets built for measurable progress.

## Structured & Model-Ready

04

Time, location, signal characteristics, and environmental metadata.

## Partner With Hidden Level

## Strategic Research Partners

Strategic partners receive expanded access to the database, enabling joint experimentation and custom data captures tailored to specific research needs.

## Academic Research Access

Gain access to curated datasets through limited-time research licenses, with the potential for publication collaboration on groundbreaking RF and spectrum research.

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## APFIT funding.

U.S. DoD, 2023

Hidden Level was awarded $10M in APFIT funding by the US Department of Defense (DoD) to provide Tactical Passive Radar for Counter Unmanned Air Systems (UAS) for the US Army.

## Government & National Lab Access

Government and national lab users are supported through controlled access pathways, sensitive data options, and mission-aligned data segmentation to meet the most stringent operational requirements.

## Data Governance & Security

Secure, privacy-compliant, and responsible operations through strict data handling, controlled partner access, adherence to applicable frameworks, and clear usage agreements that protect research integrity.

## Advance spectrum intelligence with real-world data

[REQUEST RESEARCH ACCESS](mailto:partnerships@hiddenlevel.com)