Defense & Avionics EMI Shielding
Board-level shielding for radar, EW, avionics, and secure comms — MIL-STD-461 / DO-160 driven, domestically stocked and supported.
Defense and aerospace electronics carry the most demanding EMI requirements — MIL-STD-461 and RTCA DO-160 often call for 70–90 dB of shielding effectiveness across 2–18 GHz. Programs also favor domestic, onshore-supported supply for schedule and sourcing reasons.
POCONS supplies board-level shields with US-based stock and support out of San Diego, and tools custom shield geometries to your footprint — useful when standard catalog parts don't fit a ruggedized or multi-cavity design.
Radar & Electronic Warfare Modules
Radar and EW assemblies pack high-power RF and sensitive receivers close together:
- Multi-cavity isolation between transmit, receive, and logic sections
- Wideband shielding effectiveness across 2–18 GHz
- Ruggedized retention for vibration and thermal cycling
POCONS tools custom multi-cavity shields to the exact footprint of dense RF/EW boards.
Recommended products:
Avionics Line-Replaceable Units (DO-160)
Avionics LRUs must pass RTCA DO-160 emissions and susceptibility sections:
- Board-level isolation of processors, power, and RF
- Documented shielding effectiveness for certification evidence
- Reliability over the long service life of airborne equipment
Our shields are tooled and finished for the controlled environments avionics demand.
Recommended products:
Secure Comms & SATCOM
Secure communications and SATCOM hardware combine RF front-ends with protected processing:
- Emissions control to limit unintended radiation
- Receiver protection from co-located transmitters
- Onshore sourcing preferred for sensitive programs
POCONS provides domestically-stocked, US-supported shielding for these build environments.
Recommended products:
MIL-STD-461 Compliance
MIL-STD-461 governs the EMI characteristics of defense electronics:
- RE/CE emissions limits across a wide frequency span
- RS/CS susceptibility requirements for mission reliability
- High shielding effectiveness targets (often 70–90 dB)
Our sales and Korea R&D teams help you select or tool a shield that supports your MIL-STD-461 test plan.
Recommended products:
US-Built Defense & Avionics Electronics That Use Board-Level Shields Like These
Defense and avionics electronics are predominantly built in the US (often under ITAR), and these are the highest-shielding, most spec-driven product classes — where onshore, domestically-supported shielding is a direct advantage.
POCONS shield components are manufactured in Korea (IATF 16949) and stocked and supported domestically from San Diego. The end products above are US-built and use this class of board-level shielding; this page does not claim any specific named product contains POCONS parts.
US-built products & board-level shielding
What shielding standards apply to US defense and avionics electronics?
Defense electronics follow MIL-STD-461 (EMI emissions/susceptibility) and airborne equipment follows RTCA DO-160. Both frequently require high shielding effectiveness (often 70–90 dB) achieved with board-level shield cans.
Why does onshore sourcing matter for these programs?
Defense and aerospace programs often prefer or require domestic supply for schedule control and sourcing requirements. POCONS stocks and supports parts domestically from San Diego and tools custom geometries in the US sales/engineering loop, while parts are manufactured to IATF 16949.
📚 Technical Resources
Learn more about EMI shielding fundamentals, how to measure shielding effectiveness, and our quality certifications.