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Technology · Air and missile defense

Body-worn passive RF detection

Small wearable receivers that passively scan radio spectrum to alert soldiers to nearby drone links and transmitters.

Limited fieldingPart of Counter-UAS
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Body-worn passive RF detection: organizations by maturity

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  2. Limited fielding1

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Placed by each organization's own maturity for this technology; TRL is self-reported or estimated, see confidence.

Products1

MOTH

Heaviside Industries

Body-worn passive RF spectrum analyzer (under one pound) that alerts soldiers to nearby drone, radio and other emitters, scans 5 MHz to 6 GHz and integrates with ATAK. Bought by the U.S. Army under a $99M IDIQ; initial deliveries expected in FY2027.

Limited fielding

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Sources1

  1. 1
    CompanyHeaviside Industries Awarded $99M IDIQ Contract to Provide MOTH Spectrum Analyzers to U.S. Army

    Business Wire · Sep 29, 2026 · Supports Organization technology, Technology

    “MOTH is NDAA-compliant and Blue UAS Cleared.”

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