Sierra Nevada Company (SNC) is a trusted leader in innovative, advanced technology solutions and open architecture integrations in aerospace and national security.
Sierra Nevada Company (SNC) is a trusted leader in innovative, advanced technology solutions and open architecture integrations in aerospace and national security.
overview

The Proven Standard for Electronic Support Measures

SNC delivers a full‑spectrum portfolio of electronic support measures (ESM) and signals intelligence (SIGINT) systems engineered for modern defense, ISR and autonomous mission demands. Our solutions provide rapid detection, identification, geolocation and non-kinetic electronic attack against RF emitters across tactical, strategic and multi-domain environments.

Features

SNC ESM Family of Systems

From ultra-small SWaP sensors to ultra-wideband precision systems and 360-degree passive radar awareness suites, SNC’s ESM/SIGINT Family of Systems (FoS) strengthens platform survivability, mission execution and situational awareness. Built on decades of fielded systems, including the TRL 9 AE-4500 lineage, these capabilities deliver proven readiness, open-architecture integration and reliable performance across air, land, sea and autonomous platforms.

Aerospace & Defense | Sierra Nevada Company (SNC) | Products & Technologies

AE-4500

Aerospace & Defense | Sierra Nevada Company (SNC) | Products & Technologies

ESM 360

Aerospace & Defense | Sierra Nevada Company (SNC) | Products & Technologies

Excalibur

Aerospace & Defense | Sierra Nevada Company (SNC) | Products & Technologies

Keris ESM

FEATURES

360‑Degree Passive Radar Awareness

Instantaneous hemispheric radar detection and direction finding
Wide signal compatibility including pulsed, CW and FMCW waveforms
Direction-finding, collection planning and signals analysis

Ultra‑Small SWaP Tactical ESM

100 MHz to 18 GHz frequency coverage
Compact, low-power design for small/autonomous platforms
Ideal for unmanned and remote operations

Precision Wideband ESM

2–18 GHz radar coverage with 16,000 MHz instantaneous bandwidth
High-probability-of-intercept (HPOI) performance
Advanced onboard processing for identification and correlation

Autonomous & Remote Operations

Remote tasking and BLOS operations for uncrewed and fixed sites
Autonomous scan modes, duty-cycling and headless operations
Integrated GNSS timing and precision geolocation

CONTROL THE SPECTRUM.

DOMINATE THE FIGHT.

MIssion applications

Airborne ISR & Defense Aviation

Wideband SIGINT/ESM for threat warning and radar geolocation
Precision DF and real-time radar characterization
Integration with mission computers, autonomy stacks and high-altitude ISR platforms

Uncrewed Systems & Autonomous Platforms

Ultra-small SWaP sensors for UAS, USVs and unattended ground sites
Headless, autonomous operations ideal for remote and persistent missions

Maritime & Expeditionary Operations

360-degree passive radar awareness for small vessels and fixed maritime sites
Remote operation over LOS/BLOS links for distributed EW architectures

Ground Mobile & Fixed-Site Installations

Tactical EW support for shelters, mobile units and elevated, fixed sensors
Continuous RF monitoring for perimeter defense and early warning
Sierra Nevada Company (SNC) is a trusted leader in innovative, advanced technology solutions and open architecture integrations in aerospace and national security.
Advantages

Rapid Integration & Modularity

SOSA-aligned architectures, standardized interfaces and compact form factors accelerate platform integration and modernization for rapid deployment with minimal platform disruption.

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Mission-Proven Technology

Built on TRL 7 and TRL 9 systems with hundreds of fielded deployments across defense and government platforms, ensuring reliable performance in high-consequence missions.

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Comprehensive Frequency Coverage

From 100 MHz to 40 GHz, SNC’s systems deliver full-spectrum RF awareness, radar detection and high-fidelity SIGINT across domains.

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Open Architecture for Modern Multi-Domain Operations 

Supports airborne, maritime, ground, autonomous, expeditionary and mobile mission sets, enabling adaptable sensing for evolving EW requirements.