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Electromagnetic Interference (EMI) Expert

Crosstalk: EMI and RFI

Electromagnetic interference (EMI) and RF Interference (RFI)—also known as crosstalk—are serious and increasing forms of environmental pollution. There are man made and natural sources of this interference. Regardless of the source, the effects can range from minor annoyances to potentially fatal accidents. EMI and RFI travel in invisible radio waves. They have the capacity to interrupt electrical and electronic equipment and communications systems.
These interruptions cause devices to malfunction, resulting in dangerous situations. Documented consequences of EMI & RFI crosstalk include:
Even worse, crosstalk is often initially overlooked as a potential cause of accidents.
Electrical Engineer Expert Witness | Mark McFarland, P.E.

Evidence-Based Solutions Simplified

Mark McFarland, P.E. maintains high standards in forensic electrical engineering. Consultation and litigation support services include:
  • Electrical Engineering
  • Telecommunications
  • Wireless
  • Electronics
  • Electromagnetic Interference (EMI)
  • Internet & Technology
  • Root Cause Failure Analysis
  • Cellular Evidence Mapping and Analysis
If you have litigation involving a complex scientific, engineering, or technological matter…

An Overlooked Cause

EMI & RFI waves are ubiquitous. They can be caused by:
  • The sun
  • Lightning
  • Power lines
  • Automobiles
  • Consumer electronics
  • Motors
  • Switches
  • Heaters
  • Cell phone equipment
  • Microwave ovens
  • Electronic toys
  • Lighting systems
  • Radio transmitters
These interference waves are present at some level all the time. They can be dangerous when they interact with certain electrical systems. They can cause malfunctions and accidents in mines, hospitals, businesses, and homes.
Unfortunately, many lawyers and even engineers are unaware of the potential devastating effects. The cause often goes unnoticed. We cannot see, hear, taste, smell, or feel crosstalk. Additionally, few engineers have the specialized education and experience required to investigate.
Discovery Engineering can handle the most complex crosstalk investigations. Call today for an analysis.


Authentic | Prepared | Forthcoming | Diligent

Electrical Engineer Expert Witness | Mark McFarland, P.E.
Mark McFarland, P.E., is a licensed Professional Electrical Engineer, a Board Certified Forensic Engineer, and a statistician. He holds a Bachelor of Science in Electrical Engineering (BSEE) from Lehigh University in Bethlehem, PA.
In addition, he holds a Master’s degree in Telecommunications Engineering and a second Master’s degree in Engineering Management, both from the University of Colorado at Boulder.
With over 25 years of experience as an engineer and ten years of experience in quality sciences and applied research, he can provide unbiased, clear, and timely explanations nationwide.

Who Is at Risk?

Any device that has electronic circuitry is susceptible to crosstalk. We use and depend upon electronics every day. Additionally, our electronic devices are increasingly complex and sophisticated. These factors increase the potential risk of EMI and RFI.
The threat of this interference can be minimized by adopting the practices of electromagnetic compatibility (EMC). Call to learn more.

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Yes, my practice is nationwide.

My practice covers various cases involving electrical, electronic, or telecommunications phenomena.

I work in both civil and criminal cases for the plaintiff or defense.

I have worked with plaintiff and defense lawyers on civil cases in several fields, including wrongful death, personal injury, product liability, medical malpractice, class action, insurance claims, auto accidents, contract disputes, and more.

Some criminal cases I’ve worked on have involved securities fraud, homicide, sex trafficking, and home invasion. The criminal cases usually center around cellular, mobile phone, GPS, and other electronic evidence.

I work for both plaintiff and defense lawyers on civil and criminal cases.
Yes, I am a licensed and Board certified engineer. My Board certification comes from the National Academy of Forensic Engineers. Additionally, I am an NCEES “Record Holder, ” meaning I can typically get licensed in any state within 30 days.
I am accepting new cases and am flexible and available on my clients’ schedules. I take pride in meeting all my clients’ deadlines.
My rates are very reasonable. I have two set rates for testimony time, such as in deposition or trial. The second, a lower rate, is for all other time (research, report writing, etc.) I collect an initial retainer and invoice against that.

I’ve been blessed with the opportunity to gain excellent academic credentials.

I have a Bachelor of Science in Electrical Engineering (BSEE) from Lehigh University in Bethlehem, PA. My first Master’s degree is in Telecommunications Engineering, and my second Master’s degree is in Engineering Management- both from the University of Colorado at Boulder. I also completed about 2/3 of an MSEE degree in RF engineering from Drexel University in Philadelphia before moving to Colorado.

Lastly, I procured the highest credential available in the quality sciences: the Six Sigma Master Black Belt. This required eight graduate courses (24 credit hours) in applied statistics and research at the University of Colorado.

I have over 25 years of experience as an engineer and ten years of experience in quality sciences and applied research.
Yes – I have testified on behalf of the plaintiff and defense at criminal and civil trials.