Electromagnetic Radiation Field (EMF), Interference (EMI), and Compatibility (EMC) Consulting Services

Surveys, Inspections, Investigations, Assessments, Deep Measure Analysis and Diagnostics, Predictive Simulations and Advanced Design Modeling, EMF-EMI Mitigation and EMC Pre-Compliance Consulting Services

EMI-EMC-EMF Engineering for Compliance, Health, Safety, and Design Integrity

Westchester and Western Connecticut

ELEXANA is an award-winning industry leader in EMF, EMI, and EMC Electromagnetic Consulting Services. Our international reputation began in 2018 when we quietly solved the ADAS, the Advanced Driver Assistance Systems, used in almost every new automobile. We are known for providing comprehensive on-site testing, survey assessments, root-cause identification and attenuation, investigations, inspections, and solving complex Electromagnetic Interference (EMI), Electromagnetic Compliance (EMC) Designs, Electromagnetic Field Radiation (EMF), and Radio Frequency Interference (RFI) problems.

Residential EMF-EMI Testing, Assessments, and Mitigation Consulting Services

Commercial EMF-EMI-EMC Site Surveys, Inspections, and Investigations with Solutions

Residential and Commercial ALARA EMF-EMI New Construction Design Consulting Services

EMCpass.net

ISO 17025 Certified Calibrated Surveys to National and International Standards

We are General Liability and Professional Liability Insured.

OSHA-certified

NFPA® 70E Certified Grounding and Bonding Testing

ANSI/AEMC Engineered Trained

A Member of the Bioelectromagnetics Society

A Member of the NFPA® National Fire Protection Association

A Member of the Electromagnetic Compliance Society of the IEEE

A Member of the IEEE New York Chapter

D-U-N-S Registered

A Member of the E-Verified Program

Vetted and Approved by Homeland Security and the FBI

HIPAA-compliant

ELEXANA supplies a diverse array of electromagnetic radiation consulting services.

Here are a few:

• EMI/EMC/EMF Forensic Investigations identify and solve the causes of malfunctioning equipment in industrial, scientific research, and medical centers.

• EMC Pre-Compliance Consulting includes testing on-site or in our Lab, EMI/RFI troubleshooting, EMC/EMI mitigation design, and EMI filter design for products in development.

• New Construction Building Design EMI/EMC Consulting for IT & data centers, production studios, laboratories, airports, hospitals, medical centers, high-end residential, and community development projects.

• EMF/EMI/EMC Surveys for Implanted Medical Devices, Electrical Power, and Telecom Installations; ISO-17025 and OSHA Certified. > We now have a dedicated electrical engineer, Phillip D., with thirty years of field experience, who worked for the company that makes our survey test equipment. He specializes in conducting this fieldwork for us and leads the ELEXANA Field Test Division.

• Magnetic, RF Faraday, TEMPEST, and HEMP Shield Consulting, including shielding effectiveness testing, shielding design, and material effectiveness testing.

• Ground System Consulting, including 4-Point Wenner Soil Resistivity Testing, Kelvin 3-Point Testing, energized ground testing, micro-ohmeter bond testing, and grounding design.

• Electrical Power Consulting, including Three-Phase 5-wire and Single-Phase 4-wire I-V analysis, transient testing, SNR, THD, I-V Trend datalogging, infrared tests, wire tracing, deep measure, voltage drop (%), and conducted emissions.

Our James Finn is the new EMI/EMF expert for the Epoch Times, which has 44.1 million readers worldwide!

Read the new August 24 article by Marina Zhang entitled “The Hidden EMFs in Your Home and How to Reduce Exposure.”

Providing EMI and EMF Testing Evaluations and Mitigation Consulting Services for

Fairfield County, Hartford County, Litchfield County, Middlesex County, New Haven County, New London County, Tolland County, Windham County

Insist on up-to-date ISO 17025 certified-calibrated instruments for all high-risk measurements, accurate assessments, replicable studies, and verifiable reports.

Elexana is the primary EMF radiation testing and mitigation consultancy for licensed medical practitioners, physicians, and informed residential consumers in New York, New Jersey, Connecticut, Pennsylvania, and Massachusetts.

Our EMF/EMR Testing and Mitigation Consulting Services are provided by CEU-accredited, trained, and certified Building Biology Institute® Electromagnetic Radiation Specialists (EMRS) with advanced training and certifications by OSHA, NFPA 70E®, NEC, and ANSI/AEMC Electrical Engineering. Electromagnetic Field EMF Test Surveys are completed with Integrative Time, Temperature, and Environmental Modeling Analysis.

A certified Building Biology® Institute EMRS, a Professional Electromagnetic Radiation Specialist, measures, analyzes, and identifies the sources of non-ionizing radiation on your property and is trained to advise you on the most appropriate solutions based on physical science. Uniquely essential, an EMRS is a consultant trained to bridge the communication gaps between you and your electrician, engineering staff, building contractor, architect, and medical professionals. Note: A certified Building Biology BBEC environmental consultant is not the equivalent of a certified EMRS.

Testimonials

 ☀️☀️☀️☀️☀️

“The director of the new documentary "Generation Zapped" will be on my show next week, and the film inspired me to get EMF (electromagnetic field) testing for my own home. I was a bit nervous about it because there is a lot of charlatanism in all these "alternative" services, but OMG, what a fabulous company and what a wonderful person did this testing for us! Jim from Elexana was so thorough, so knowledgable, so patient, and so understanding. How refreshing to deal with a company that is trustworthy, does what they'll say they do, doesn't promise miracles, and doesn't try to sell you a bunch of extra stuff." - Victoria Moran, Author, Speaker, Vegan Lifestyle Coach, Director Main St. Vegan Academy, training & certifying Vegan Lifestyle Coaches at Main Street Vegan

“Jim was excellent. He is an expert in his field, and pointed out simple things we could do to help improve the quality of our home life. Peace of mind is priceless, and this costs a lot less than that! Well worth it.” - Scott Harris, of Brown, Harris, Stevens, NYC’s residential real-estate company

“I want to thank Elexana and it’s staff for the tremendous insight, knowledge, and help they provided my family and me. By testing all of the electromagnetic fields in our New York City apartment and changing our habits, my wife now sleeps easier and we all feel healthier in our environment! Thank you again, Elexana!” - Jay Zimner, NYC’s residential real-estate attorney

“Elexana offers the most comprehensive EMF testing. Jim (the owner) is wildly knowledgeable, has many years of experience, is deeply kind, sincere, and honest. I felt confident learning from an expert who has worked in NYC extensively and who understands the ins and outs of how this city works.” - Meredith Geller, Holistic Nutritionist, The Elevated Life, NYC

See more testimonials...

EMF can be interruptive at even the lowest measured levels into the pico tesla, microvolts, and microamperes. Using only a Magnetic Flux Model, Power Density Model, or Radio Frequency Interference Model is much too incomplete and, therefore, NOT a best practice for assessing EMF's causative impact on biological or electronic function.

Elexana considers many variables when providing an EMF assessment because even low voltage and current levels can induce effects. Elexana models consider the complexities of reflection, radiative/capacitive/inductive/conductive/resonant/magnetic phase synchronous coupling, signal density and phase coherence, trace integrity, oscillation, multi-path interference, pulse rate modulation, cross-talk, grounding system testing, and more.

What you should expect from a professional assessment:

1. Stray Current can enter your building via water, gas, and coaxial internet service lines or your HVAC system. It is measured in amperes and flux density. Be sure your consultant can provide solutions compliant with the National Electric Code, NEC.

2. Complete Grounding System assessment check and measuring in mV, amperes, and fundamental frequencies on each, often they are not 60 Hertz. This check is for two tests: the EGC Equipment Ground Conductor System and the Overload Lightning Protection System. Singular to Elexana LLC, we measure your grounding system's impedance to ensure that it is < 25 Ohms.

   • (We can also conduct a soil resistivity test with a state-of-the-art 4-point ground rod Wenner Test and calculate how many ground rods you require to reach the NEC requirement of < 25 Ω, upon request.)

3. AC Magnetic Fields to 30 MHz, indoors and outdoors, must be measured. Most measure 1 MHz at best, but we include the magnetic fields from HF High-Frequency sources. The spectrum range between 1 - 30 MHz is the most overlooked bandwidth because the equipment to measure this bandwidth correctly is so expensive. This may be why this ubiquitous field is not discussed much but should be included in every assessment. We identify and isolate the size, shape, coupled frequency bands, velocity, and all co-signaling fields. We identify source points and propose the best solutions. Many of these sources can be remediated. AC Magnetic emissions from your appliances and other source points, such as power lines, electrical conduits, risers, and heating panels, must be measured. If your work requires power tools, then your tools need to be measured. Your consultant must be trained and qualified to identify wiring errors and provide instructions to your electrician on how to fix them.

4. Airborne AC Electric Fields to 60 MHz, measured in Volts-per-meter, V/m. This includes all E-fields emitted by ungrounded lamps and appliances, Romex (unshielded home electrical wiring), and poorly grounded electrical distribution lines. Tip: sometimes, powering OFF a bedroom will increase the E-Field flux within a room, so please do not do this unless it is verified as safe.

5. DC Magnetic Fields, measured in nanoTesla (nT) with a state-of-the-art DC magnetometer used for scientific research. Geomagnetic stress can be a severe issue at specific locations and should not be overlooked.

6. DC Electrostatic Fields, measured for source-point identification. (We measure this in V/m for commercial interference applications and surface voltage for those with pacemakers and/or heart conditions.) Be sure to receive a solution plan. A DC static shock can cause serious harm.

7. Epidermal Voltage, measured at the workstations and sleeping areas to help determine and remediate source points. Much of this work is often done during an assessment. We measure our epidermal voltage as a reference. Clients can opt to have their voltage measured too.

8. Electromagnetic Interference, EMI, often incorrectly termed Dirty Electricity (DE) measured on the phase, neutral, and ground using an oscilloscope amplitude and FFT. Also, measuring airborne EMI is essential. (To only use a plug-in Broadband EMI Line Meter to sell wall outlet filters is an overdone sales tactic to ramp up commissions.) We use state-of-the-art equipment to accurately and thoroughly assess the harmonic transients coupled to your electrical system’s 60 Hertz sine wave.

9. Radio Frequencies for the 5G Network, At Elexana, we can measure RF analyzed in 3-D with a 100% POI (Percentage of Intercept) spectrum analyzer using units: dBm, Watts, Voltage, and Amperage from frequencies as low as 9kHz to determine and isolate source points directionality.

   Note: The consultant should consider much more than power density levels: the number of signals and frequency clusters, reflection rate, phase distortions, signal coherence, multi-path interference, and more. Only measuring peak levels does NOT tell the whole story for providing the best RF solutions. Peak levels from a hand-held meter are almost always incorrect.

10. Baseline Testing of all Ambient Fields: A full and final conclusive EMF assessment of all emissions entering the home from outdoors or the surrounding apartments versus what is produced within the home. Make sure the consultant provides clear solutions. Simply recommending that you get some distance from a source point is not a professional solution.

Please use this form to contact us and someone will contact you as soon as possible.

Here, you will find information to help understand the difference between the types of EMI Consulting Services and what to look for in a company offering EMI Testing Solutions.

EMI Survey

Definition: An electromagnetic interference EMI survey is a scientific assessment of the unintended conductive and radiative emissions that may interfere with the functioning of electronic equipment or systems.

Purpose:

1. Check background EMI/EMF levels.

2. Verify compliance with environmental standards.

3. Identify hotspots or areas at risk of interference.

4. It is often done proactively as part of site qualification, especially in sensitive environments like hospitals, labs, or data centers.

Scope:

1. Wide area or whole system.

2. Focused on characterizing the environment, not necessarily finding the cause of a specific problem.

3. May involve long-term monitoring or periodic checks.

Key Features of an EMI Survey

1. Detailed Measurement of Electromagnetic Fields.

• Uses calibrated instruments (spectrum analyzers, EMI receivers, near-field probes, antennas, field strength meters) to quantify electromagnetic emissions across defined frequency ranges.

• Captures both radiated and conducted emissions.

2. Baseline EMI Environment Assessment.

• Maps out the existing electromagnetic environment in a site (facility, lab, data center, hospital, etc.).

• Identifies background EMI sources (external: like nearby radio transmitters; internal: like industrial machinery or IT equipment).

3. Compliance Verification.

• Compares measured emissions and susceptibility levels to relevant EMC standards (FCC Part 15, IEC 61000, MIL-STD-461, CISPR standards, etc.).

• Ensures systems are within acceptable EMI limits.

4. Identification of Potential Risks.

• Highlight equipment or locations vulnerable to EMI problems.

• Identifies EMI “hot spots” where emissions may exceed thresholds or pose interference risks.

5. Comprehensive Site or System Coverage.

• Includes multiple locations across a site (rooms, floors, equipment racks, shielded enclosures).

• Often includes airborne (radiated) and line-bound (conducted) interference checks.

6. Use of Specialized Measurement Techniques.

• Near-field vs. far-field probing.

• Broadband vs. narrowband scans.

• Time-domain or frequency-domain analysis.

7. Reporting and Documentation.

• Provides detailed measurement data, spectral plots, field maps, and tables.

• Includes a written summary of findings, risk assessment, and recommendations for mitigation (if needed).

8. Support for Further Investigation or Design Improvement.

• Acts as the foundation for:

  • EMC design improvements.

  • Shielding or filtering upgrades.

  • Root-cause investigations are conducted if specific EMI problems are uncovered.

Where Are EMI Surveys Used?

• Hospitals (to protect sensitive medical devices).

• Data centers (to ensure reliable IT performance).

• Manufacturing facilities (to safeguard automated systems and robotics).

• Research labs (where precision measurements are EMI-sensitive).

• Military or aerospace sites (where strict EMC standards apply).

• Office or residential towers (especially near strong RF emitters).

EMI Investigations

Definition: An EMI investigation is a targeted diagnostic process triggered by a specific problem or suspected interference. It aims to identify, isolate, and resolve the root cause.

Purpose:

1. Understand why a device or system is malfunctioning or failing EMC tests.

2. Trace the specific interference source (which could be internal or external).

3. Recommend solutions (shielding, grounding, filtering, redesign, etc.).

Scope:

1. Narrowed to the system or components involved in the failure.

2. Involves deeper, often more technical, analysis (including circuit-level reviews or near-field probing).

EMI Investigation: Required Skills & Knowledge

Deep Technical Knowledge of EMC Principles

• Understanding of coupling mechanisms (conducted, radiated, common-mode, differential-mode)

• Familiarity with shielding, filtering, and grounding techniques

Advanced Measurement & Diagnostic Tools

• Skilled use of near-field probes, current clamps, LISNs (line impedance stabilization networks), oscilloscopes, time-domain tools

• Ability to interpret detailed measurement data, not just record it

Circuit-Level & System-Level Understanding

• Ability to trace interference paths through PCBs, wiring, enclosures

• Knowledge of how system design choices affect EMI performance

Knowledge of Compliance & Regulatory Requirements

• Familiarity with specific test standards (FCC Part 15, CISPR 22, MIL-STD-461, RTCA/DO-160, etc.)

• Understanding pre-compliance vs. full compliance testing requirements

Analytical & Problem-Solving Skills

• Ability to hypothesize, isolate, and test root causes

• Experience applying design fixes or mitigation solutions

Hands-On Engineering Skills

• Sometimes requires circuit rework, adding ferrites, redesigning layouts, or modifying enclosures.

  Main Steps Involved in an EMI Investigation

  Define the Problem Clearly

  • Identify and document:

    • The observed issue (e.g., system malfunction, data loss, communication failure, equipment reset).

    • When and where it occurs (specific times, locations, conditions).

    • The systems or devices are affected.

    • Any history of the problem or previous attempts to solve it.

  Review Background Information

  • Gather:

    • System designs, schematics, and prior EMI/EMC reports.

    • Equipment manuals and susceptibility specs.

    • Environmental conditions (e.g., nearby transmitters, power disturbances, machinery).

  Develop an Investigation Plan

  • Define:

    • What measurements are needed (radiated, conducted, near-field, time-domain).

    • The tools and instruments should be used (spectrum analyzers, oscilloscopes, TDRs, probes).

    • The test points and environmental factors to assess.

  Conduct Targeted Measurements

  • Perform on-site tests to:

    • Identify EMI sources (external or internal).

    • Map interference paths (how it couples into sensitive systems).

    • Measure EMI levels vs. system susceptibility thresholds.

  • Use advanced techniques:

    • Near-field scanning, source localization.

    • Time-domain analysis of transient events.

    • Monitoring under different operating conditions.

  Perform Root-Cause Analysis

  • Trace the exact mechanism causing the problem:

    • Is it radiated or conducted?

    • Common-mode or differential-mode coupling?

    • Ground loops, shielding failure, cable crosstalk, or parasitic coupling?

  • Correlate findings with system behavior.

  Recommend Mitigations

  • Propose practical solutions, such as:

    • Shielding improvements.

    • Filter or ferrite installations.

    • Grounding or bonding adjustments.

    • Cable rerouting or equipment relocation.

    • Design modifications (if needed).

  Validate Fixes (Optional but Ideal)

  • After applying fixes, re-measure and confirm that the interference problem is resolved.

  Document the Investigation

  • Provide a detailed report with:

    • Description of the problem.

    • Measurement data and analysis.

    • Root-cause findings.

    • Recommended solutions and their technical basis.

    • Confirmation of resolution (if tested).

  Where Are EMI Investigations Used?

  • Hospitals: When life-critical medical devices malfunction.

  • Data centers: When servers crash or communication links drop.

  • Industrial sites: When control systems or sensors behave unpredictably.

  • Military/aerospace: When mission-critical or safety-critical systems face unexplained disturbances.

  • Research labs: When precision instruments show unexplained noise or instability.

  What’s Special About EMI Investigations?

  • Highly targeted — focus on solving an active or suspected interference problem.

  • More advanced tools and techniques — beyond general surveys or inspections.

  • It requires deep expertise and is often handled by senior EMI/EMC engineers or specialists.

  • Outcome-driven — the goal is not just to measure, but to explain, solve, and verify.

EMI Inspections

Main Steps Involved in an EMI Inspection

Define Inspection Purpose and Scope

• Clarify why the inspection is being done:

  • Pre-installation or pre-commissioning check.

  • Routine compliance or maintenance check.

  • Visual assessment for potential EMI risks.

• Define which systems, equipment, or areas will be inspected.

Review Design and Documentation

• Examine:

  • Grounding and bonding schematics.

  • Cable routing and shielding layouts.

  • Equipment placement relative to known EMI sources.

• Check that installed systems match design specifications and applicable EMC/EMI standards.

Perform Visual and Physical Inspection

• Inspect:

  • Physical integrity of shielding, gaskets, and enclosures.

  • Proper grounding and bonding connections.

  • Cable management — are signal and power lines properly separated? Are shield terminations correctly done?

  • Placement of sensitive equipment relative to known EMI emitters.

Conduct Spot Checks (If Needed)

• Use portable meters or handheld EMI detectors to:

  • Check for obvious hot spots.

  • Verify grounding continuity.

  • Confirm shield effectiveness (simple checks, not full lab-grade measurements).

Assess Compliance and Best Practices

• Evaluate:

  • Whether installations follow EMC design best practices.

  • Whether systems comply with applicable EMI standards or client-specific requirements.

• Identify potential risks or vulnerabilities, even if no current EMI issue is reported.

Document Findings

• Provide a report with:

  • Summary of visual and physical findings.

  • List of compliance issues or areas needing improvement.

  • Photos or diagrams showing key points.

  • Recommended corrective actions or improvements.

Recommend Next Steps (If Needed)

• If problems or risks are found:

  • Recommend further testing (full EMI survey or investigation).

  • Suggest practical fixes (e.g., improving grounding, adding ferrites, improving cable shielding).

EMI Inspections Apply to:

• New or renovated installations (before going live).

• Hospitals, labs, data centers — ensuring environments are properly prepared for sensitive equipment.

• Industrial or commercial sites — periodic compliance checks or maintenance audits.

• Construction or renovation projects — ensuring EMI-sensitive design elements are implemented properly.

What’s Not Typically Included?

• Full spectral or quantitative EMI measurements (requires an EMI survey).

• Deep root-cause troubleshooting or engineering fixes (belongs to an EMI investigation).

• Regulatory certification or test lab work.

Here’s a clear summary of what is involved with an EMI investigation, which is the most advanced and targeted EMI service compared to surveys or inspections:

Main Steps Involved in an EMI Investigation

Define the Problem Clearly

• Identify and document:

  • The observed issue (e.g., system malfunction, data loss, communication failure, equipment reset).

  • When and where it occurs (specific times, locations, conditions).

  • What systems or devices are affected.

  • Any history of the problem or previous attempts to solve it.

Review Background Information

• Gather:

  • System designs, schematics, and prior EMI/EMC reports.

  • Equipment manuals and susceptibility specs.

  • Environmental conditions (e.g., nearby transmitters, power disturbances, machinery).

Develop an Investigation Plan

• Define:

  • What measurements are needed (radiated, conducted, near-field, time-domain).

  • Tools and instruments to use (spectrum analyzers, oscilloscopes, TDRs, probes).

  • Identify test point locations and environmental factors to assess.

Conduct Targeted Measurements

• Perform on-site tests to:

  • Identify EMI sources (external or internal).

  • Map interference paths (how it couples into sensitive systems).

  • Measure EMI levels vs. system susceptibility thresholds.

• Use advanced techniques:

  • Near-field scanning, source localization.

  • Time-domain analysis of transient events.

  • Monitoring under different operating conditions.

Perform Root-Cause Analysis

• Trace the exact mechanism causing the problem:

  • Is it radiated or conducted?

  • Common-mode or differential-mode coupling?

  • Ground loops, shielding failure, cable crosstalk, or parasitic coupling?

• Correlate findings with system behavior.

Recommend Mitigations

• Propose practical solutions, such as:

  • Shielding improvements.

  • Filter or ferrite installations.

  • Grounding or bonding adjustments.

  • Cable rerouting or equipment relocation.

  • Design modifications (if needed).

Validate Fixes (Optional but Ideal)

• After applying fixes, re-measure and confirm that the interference problem is resolved.

Document the Investigation

• Provide a detailed report with:

  • Description of the problem.

  • Measurement data and analysis.

  • Root-cause findings.

  • Recommended solutions and their technical basis.

  • Confirmation of resolution (if tested).

Where Are EMI Investigations Used?

• Hospitals: When life-critical medical devices malfunction.

• Data centers: When servers crash or communication links drop.

• Industrial sites: When control systems or sensors behave unpredictably.

• Military/aerospace: When mission-critical or safety-critical systems face unexplained disturbances.

• Research labs: When precision instruments show unexplained noise or instability.

What’s Special About EMI Investigations?

• Highly targeted — focus on solving an active or suspected interference problem.

• More advanced tools and techniques — beyond general surveys or inspections.

• It requires deep expertise and is often handled by senior EMI/EMC engineers or specialists.

• Outcome-driven — the goal is not just to measure, but to explain, solve, and verify

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