EMFnYc.com
We test for solutions,
not problems.
The Original Residential Electromagnetic Field Service for New York
Independent Unbiased Scientific EMF Testing and Practical Solutions for Homeowners
Welcome.
EMFnYc.com helps you better understand your home's electromagnetic environment, enabling you to make informed, empowered decisions. We identify actionable EMF and EMI sources, fix them, and recommend practical, cost-effective solutions tailored to your situation and needs. Generally, we aim for free fixes or inexpensive solutions and almost never recommend EMF products because they often make the electromagnetic environment in your home worse, or become a shock and fire hazard. We strive for exposure levels applying the ALARA Principle, As Low As Reasonably Achievable.
Our work is independent and product-neutral. Recommendations are based on what we consider the most efficient and cost-effective remediation, rather than mitigation product sales incentives. To ensure that we consult for your interests and your interests alone, we do not sell EMF mitigation products or receive commissions from any recommendations to clients. This ensures there is no conflict of interest.
Today, two clients from a few years ago came to mind, a mother and daughter. From my experience with them, I was reminded that residential work can oftentimes be truly rewarding. It can feel like doing God’s work. (You can read about Greicy and her daughter in the Reviews section below.)
I wish I had more time for everyone who wants residential work. But, I don’t. —The jobs I have taken on, these past few years, have not been residential, but they are no less important, and not many EMI engineering consultants, if any, can do them. —Fortunately, Anastasiia, our very talented Electromagnetic Engineer, has agreed to help out with residential service for us, even though this work was not in her job description. That said, she has been a top-flight team member for ELEXANA. But I need her over at ELEXANA. Therefore, you see, we can only take on one or two clients a month.
Thank you for visiting our webpage.
Sincerely,
James Finn (Jim)
RF Exposure and Interference Testing
IEC/ISO 17025 Certified-Calibrated Equipment
Broadband Data Logging from 1.0 MHz to 40 GHz
Spectrum Analyzer Testing
Why EMFnYC
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EMFnYC brings extensive experience in the design and evaluation of low-EMF, low-EMI environments across a wide range of building types.
This includes:
Large-scale facilities exceeding 1.5 million square feet with multiple three-phase electrical distribution systems
Commercial and institutional buildings with complex grounding, bonding, and load configurations
Residential properties ranging from multi-unit dwellings to approximately 2,000 square foot homes with single-phase electrical systems
This breadth of experience provides a unique advantage:
The ability to apply infrastructure-level engineering insight to residential environments.
As a result, we can identify and address issues such as:
unintended return current paths
grounding and bonding inconsistencies
load imbalance and magnetic field generation
interactions between building systems and external infrastructure
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We limit the number of assessments we perform.
This ensures:
Sufficient time for detailed evaluation
Careful analysis of findings
Thoughtful, site-specific recommendations
We prioritize quality over volume.
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A Higher Standard of EMF Testing
EMFNYC was built on the principle that residential EMF testing should meet the same standards of rigor as professional engineering analysis.
If you are looking for:
Accurate measurement
Technical clarity
Unbiased guidance
Effective solutions
EMFnYc provides a distinct level of service from conventional EMF surveys.
Schedule a Consultation
Contact us to discuss your environment and determine the appropriate next steps.
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The New York tri-state area presents unique challenges:
Dense electrical infrastructure
Multi-unit buildings with shared systems
Nearby substations and distribution lines
High levels of RF activity
In these environments, simple readings can be misleading.
We apply system-level analysis to separate overlapping sources and accurately interpret results.
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Certified Ground Testing and experience consulting on grounding for mansions, airports, data centers, research centers, railroads, and sky scrapers.
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Most EMF services collect readings.
We perform diagnostics.
Our approach is based on principles used in electrical engineering and electromagnetic compatibility (EMC):
Identify the true source of fields
Analyze how energy is coupling into your environment
Distinguish between:
electric and magnetic fields
power-frequency and radio-frequency sources
conducted and radiated effects
This allows us to move from raw data to understanding and resolution.
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We do not sell shielding products.
We do not accept commissions.This ensures that every recommendation is:
Based on measured conditions
Specific to your environment
Free from commercial bias
Our objective is simple:
Provide the most effective solution—not the most marketable one.
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Many EMF assessments stop at identifying elevated levels.
We go further by determining:
Why the field exists
Where it originates
How it enters and propagates through your space
This often leads to solutions that are:
More effective
Less invasive
More cost-efficient
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We utilize calibrated instrumentation and broadband measurement techniques to capture:
Power-frequency magnetic and electric fields
Radio-frequency signals across relevant bands
Variations over time and operating conditions
Where necessary, we incorporate frequency-domain analysis to identify specific contributors.
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Our work spans:
Residential environments
Institutional settings
Infrastructure-related EMF conditions
Engineering and EMC diagnostics
This cross-domain experience allows us to recognize patterns and sources that are often overlooked in standard residential surveys.
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You will not receive a generic report.
You will receive:
A clear explanation of findings
Identification of dominant sources
Practical recommendations tailored to your space
Our goal is to leave you with:
A precise understanding of your environment—and a clear path forward.
Electrical Power Emissions Exposure Testing
Power Lines, Substations, Local Distribution Lines, Transformers
IEC/ISO 17025 Certified-Calibrated Equipment
Shielding and Grounding Design
Reviews
(Please note: These reviews were transferred over from Elexana.)
Victoria Moran, Celebrity Author, Manhattan, New York
"The director of the new documentary "Generation Zapped" will be on my show next week, and the film inspired me to get EMF (electro-magnetic 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."
Scott Harris, High-End Residential Real-Estate Agent, Manhattan, New York
“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.”
Phil Cicio, Radiation Technician, Manhattan, New York
“After researching many companies, we went with Jim's because initially he was comprehensive and knowledgeable in explaining the overall process in assessing our home for EMFs. When Jim came out to our home, he was eager to explain what needed to be done to uncover potential hazards. He was prompt and efficient and well prepared. Within hours we had a remediation plan. He left us with all the tools we needed to do basic, easy, and simple changes. We were able to do everything ourselves within a short period of time. We did not have to spend a lot of money to do these simple changes. Jim followed up with phone calls and support. It has been a few months since Jim was here. We are all sleeping much better. We have an overall feeling of being relaxed and well rested. None of us have been sick. And, we have continued to stick to all changes which have been beneficial to our family. We are grateful for Jim's knowledge and his caring for our well being. We highly recommend!”
Greicy Jerez, Mom w/ Nine Young Children, Saugus, Massachusetts
“Jim was Absolutely great to work with. He performed an EMF evaluation of our Home via a zoom call. He helped me find a hot spot w/ high levels of magnetic field where our 6 yr old sleeps. It was right at her bed where she lays her head. We have been struggling with her sleep for years. As well as daily tantrums, anger issues and lack of focus. As soon as Jim found these high levels, he encouraged me to find another room in the house for her to sleep in. His expertise and passion to help my daughter was very much appreciated. He showed that he cared and wanted me to follow up with him in regards to my daughter. The very first night, my daughter fell asleep within 10 minutes, which never happens. The following day, she had an amazing day with no tantrums or anger episodes. On the second night, she fell asleep again quickly like never before. Unbelievable! I’m so grateful for Jim’s help. Such a feeling of empowerment to be able to finally find the cause of my daughters sleep issues. We may have found the missing puzzle piece and I couldn’t have done it without Jim.”
Note: Greicy and I stayed in touch for several months via email. Her daugter continued to make progress. Her interactions at school improved, she was making friends, and she became a happy little girl. The powerful and moving feeling I receive every time I reflect on our shared wonderful experience, of learning about her daughter’s miraculous recovery and my having made a difference for Greicy and her daughter through God’s divine hand, is the reason I simply cannot give up on residential work. Yes, I removed residential services from ELEXANA’as website, I was done with it…but, then I thought of Greicy, her daughter, and the many who have benefited from my efforts, and God’s blessings. So, now, residential work can still be found, here at EMFnYc.com.
This work is for these people, these beautiful persons, not who found me, but I found them through God’s intervention. These folks were found for me, so I could have a deep meaning for my life, understand humility, and feel my heart and soul.
Dirty Electricity Measured the Right Way for Exposure Assessments.
Dirty Electricity is slang for Capacitively Coupled High-Frequency Electric-Field Transients.
Residential EMF Survey Checklist
We cover the entire EMF spectrum range from 0 Hz to 40 GHz using IEC/ISO-17025-certified, calibrated equipment. Very few firms, if any, that provide residential services can make this claim.
Most use manufacturer-calibrated equipment and omit the lowest ELF range, the 1-30 MHz range, and frequencies above 8 GHz… and there is a lot of human-engineered energy in these frequency bands.
We take care to be as detailed and thorough as possible because we do not want to leave your property with the possibility that we may have missed something!
…just one reason among many reasons why we feel residential consulting does not get any better than what we bring. - So here’s the checklist:
Stray Current: can enter your building through the ground, water, gas, and coaxial internet service lines, or through your HVAC system. It is measured in amperes with an oscilloscope and flux density with a magnetometer and a spectrum analyzer. (Be sure your consultant can provide solutions compliant with the National Electric Code, NEC.)
Complete Grounding System assessment checks and measurements in mV, amperes, and fundamental frequencies for 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. * We measure your grounding system's impedance to ensure it is < 25 Ohms. (Your electrician doesn’t do this.) We inspect and test both the primary and secondary grounds, if accessible, to ensure your safety. If there is a problem, we will document this correctly and send over the information to your electrician.
AC Magnetic Fields, indoors and outdoors, must be measured. Most measure to 1 MHz at best, but we include magnetic fields from HF (High-Frequency) sources. The 1-30 MHz spectrum range for magnetic, electric, and RF signals is the most overlooked because the test equipment needed to measure it correctly is expensive. This may be why this ubiquitous part of the spectrum is not discussed much, but should certainly 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, document them correctly, and provide clear instructions to your electrician, using the correct terminology to fix them. If he does not know how to fix them, the superior EMF consultant, such as us, can direct him on how to do so. We work with licensed electricians every week.
Airborne AC Electric Fields, measured in Volts-per-meter, V/m from 5 Hz-60 MHz. This includes all E-fields emitted by two-wire lamps and appliances, Romex (unshielded home electrical wiring), and poorly grounded electrical distribution lines. Tip: Sometimes powering OFF a bedroom increases the E-Field flux within the room, so please do not do this unless it has been verified as safe.
DC Magnetic Fields, measured 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.
Harmonic Transients on the E-Fields (Dirty Electricity): We measure signal noise in the air from 30 kHz to 60 MHz using a monopole antenna and a spectrum analyzer.
Radio Frequencies of the 5G and 6G Network, and much more. 1.0 MHz to 40 GHz.
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.
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.
—Ah, yes…We no longer conduct these baseline tests because we have learned that assessment errors can still occur using this traditional troubleshooting technique. Consequently, we have developed an even better, more accurate method that does not require de-energizing (powering off) your home or building!
Recommendations for any needed fixes — We can provide a list for your electrician, work with him, or bring one of ours.
Our aim is to help you create a healthy home where your sleep improves and you have better energy.