Sentinel delivers defensible, accreditation-aligned documentation validating RF and acoustic containment performance.

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Through final acoustic certification testing and RF containment readiness verification, Sentinel confirms that the completed enclosure performs as intended and produces structured documentation suitable for accreditation review by AO/CTTA stakeholders.

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Certification Testing & Accreditation Readiness

Sentinel performs final containment testing after construction and any required remediation activities are complete.

Testing includes both acoustic certification and RF containment verification conducted during the same site visit to evaluate the enclosure as a complete system.

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Acoustic testing verifies that speech containment meets required performance criteria and evaluates walls, ceilings, doors, penetrations, and mechanical pathways for potential flanking paths. RF containment verification evaluates shielding effectiveness across the enclosure, including structural shielding assemblies, penetrations, grounding and bonding interfaces, door assemblies, and waveguide vents.

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Testing methodologies align with recognized practices such as ASTM field measurement standards and IEEE 299 shielding effectiveness testing, and reflect RF measurement principles commonly applied in TEMPEST evaluation environments.

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Certification Documentation

Sentinel produces structured, defensible documentation consistent with recognized engineering practices and aligned with typical accreditation submittal expectations for AO and CTTA review.

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Documentation is developed to reflect the level of rigor associated with formal certification and evaluation activities and is intended to provide a clear, traceable record of containment performance for the completed enclosure.

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Deliverables typically include:

• Detailed description of test methodology, measurement configuration, and test setup conditions

• Identification of all test equipment utilized, including manufacturer, model, serial numbers, and calibration status

• Frequency ranges evaluated and corresponding RF attenuation performance data

• Measured acoustic performance data, including airborne sound transmission results and identified flanking conditions

• Test location documentation, including measurement positions and boundary conditions

• Analysis of enclosure performance relative to project requirements and expected shielding/acoustic criteria

• Identification and documentation of any observed anomalies, leakage paths, or residual conditions

• Summary of corrective actions performed (if applicable) and associated post-remediation verification results

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Where applicable, documentation can be formatted to align with common accreditation expectations and structured in a manner consistent with reports used in formal RF containment and acoustic evaluation efforts.

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This documentation provides the project team with a clear, technically defensible record of containment performance and supports efficient review by the Authorizing Official (AO) and Certified TEMPEST Technical Authority (CTTA).

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*Representative sample certification documentation is available upon request.

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Accreditation Confidence

By the time a project reaches formal accreditation testing, Sentinel has:

• Verified RF and acoustic containment performance

• Identified and resolved leakage paths

• Produced a complete, accreditation-aligned testing record

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This approach significantly improves the likelihood of first-pass accreditation success while reducing the risk of retesting cycles, schedule delays, and late-stage remediation.

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