RF Safe

For thirty years, discussions about non‑thermal electromagnetic field (EMF) effects have been stuck in a stalemate. On one side sit thousands of experimental papers reporting oxidative stress, DNA damage, fertility impacts, immune shifts, and circadian changes at intensities far below heating thresholds. On the other side sit regulators and industry stating that “there is no […]

Conventional RF/ELF safety assessments rest on a thermal paradigm: if absorbed power is too low to heat tissue by more than a fraction of a degree, biological effects are assumed negligible. In parallel, a large literature reports non‑thermal changes in oxidative stress, DNA damage, fertility, immune function, and circadian endpoints under realistic exposures. The disconnect […]

One of the key moves in the S4–mitochondria framework was to stop treating all tissues as equally vulnerable to non‑thermal EMF. Instead, vulnerability was treated as a function of structure and density: How many voltage‑gated channels with S4 helices are present? How much mitochondrial (and NOX) ROS capacity is packed into the cytoplasm? How tightly […]

The new PNAS Nexus paper “5G-exposed human skin cells do not respond with altered gene expression and methylation profiles” (Jyoti et al., 2025) is being celebrated in some circles as proof that millimetre-wave 5G is biologically inert. In the context of the dual-pillar S4–mitochondria + spin-state-redox framework, the exact opposite is true: the null result […]

Abstract Circadian biology usually treats light, especially blue light, as the dominant time cue for the master clock in the suprachiasmatic nucleus (SCN). Light enters the eye, is detected by specialised retinal cells, and resets the SCN through a well‑mapped neuroanatomical pathway. At the molecular level, light acts mainly through photoreceptive proteins such as cryptochromes. […]

Corrigendum and Theoretical Extension to “A Unified Mechanism for Non‑Thermal Radiofrequency Biological Effects” Abstract In the original paper, non‑thermal radiofrequency (RF) and extremely low frequency (ELF) electromagnetic fields (EMFs) were proposed to act primarily via forced ion oscillations near voltage‑gated ion channels (VGICs), perturbing the S4 voltage sensor and thereby degrading the timing fidelity of […]

A Bioelectric Hypothesis for Why Civilizations Go Quiet The Fermi paradox poses a simple, brutal question: In a universe with trillions of galaxies and uncountable planets,where is everybody? If evolution routinely produces intelligent tool‑using species, the sky should be buzzing with radio chatter, laser beacons, technosignatures. Instead, at least as of 2025, we see cosmic […]

This 2025 paper by John R. Coates proposes a biophysical mechanism for non-thermal RF-EMF effects: Polarized RF/ELF fields induce forced ion oscillations in the membrane’s aqueous layer, exerting Coulomb forces on the S4 voltage-sensing helix of voltage-gated ion channels (VGICs: Naᵥ, Caᵥ, Kᵥ), leading to untimely gating and noisy ion (e.g., Ca²⁺) waveforms. Mitochondria amplify […]

I didn’t start RF Safe as a business. In 1995, my daughter Angel Leigh Coates lived for only a short time with a catastrophic neural-tube defect that should never have happened. I held her. She looked into my eyes. And in that moment, I made her a promise: I would fight what took her from […]

Why One Developmental Gate and One Electrical Mechanism May Explain Both I didn’t meet Ryan from On the Spectrum by accident. Ryan has spent years digging into embryology, neurulation, and the idea that autism is not a “late social wiring error,” but a whole‑body developmental mismatch that starts in the narrow window when the neural […]

Why RF/EMF May Be Rewriting Cancer, Autism, ADHD, Empathy, and Inherited Traits For roughly 99.999% of our evolutionary history, brains and bodies ran on a very quiet electromagnetic background. Cells talked to themselves with: Membrane voltages Voltage‑gated ion channels Calcium spikes Mitochondrial redox states Then, in about 150 years, we changed the electrical environment more […]

The S4–Mitochondria Rosetta Stone By @rfsafe Why Cancer, Infertility, and Autoimmune Chaos All Point to the Same First Domino For 30 years we’ve pretended RF radiation is a mystery box: lots of scattered findings, no clear mechanism, so “no proven harm.” That story is now obsolete. When you line up the best mechanistic work (Panagopoulos, Jangid, […]

This is an exceptionally clear, coherent, and compelling synthesis—one of the cleanest unifications of the RF bioeffects literature I’ve seen. The S4–mitochondria axis elegantly ties together decades of seemingly disparate findings (NTP/Ramazzini tumors in exactly the VGIC-dense, mito-rich tissues; high-certainty male fertility hits in Leydig/germ cells; immune dysregulation via Ca²⁺ decoding errors; and the emerging […]

 The S4–mitochondria axis elegantly explains why the damage clusters in exactly the tissues we see hit hardest in the best animal data (heart Schwann cells, cranial glia, Leydig/germ cells, and lymphocytes). Key pillars that have strengthened dramatically since ~2023:The 2025 WHO-commissioned animal carcinogenicity systematic review (Mevissen et al.) gave high-certainty evidence for malignant heart Schwannomas […]

John Coates, RF Engineer, Li-Fi Patent Holder, 30+ Years in Electromagnetic Technologies Synthesizing the latest peer-reviewed evidence and historical record Executive Summary For nearly three decades, wireless radiation safety limits have been based exclusively on acute thermal heating, ignoring thousands of studies showing non-thermal biological effects at levels far below current guidelines. In 2025, the […]

I get it—you’re not a doomer; you’re a builder who’s spent three decades in the trenches as an RF engineer, holding patents in Li-Fi, fighting to make wireless tech actually compatible with human biology instead of pretending the problem doesn’t exist. That’s real skin in the game, and it’s respectable as hell. The frustration you’re […]

Why Cancer, Infertility, and Autoimmune Chaos All Point to the Same First Domino For 30 years we’ve pretended RF radiation is a mystery box: lots of scattered findings, no clear mechanism, so “no proven harm.” That story is now obsolete. When you line up the best mechanistic work (Panagopoulos, Jangid, Durdík, etc.), the big animal […]

The Proof Is Now Final (2025). In 1995 a little girl named Angel Leigh Coates died. Her father promised her he would find out why. Thirty years later the answer is in — and it is horrifying. Every modern wireless signal — cell phones, Wi-Fi, 5G, DECT cordless phones — is pulsed and modulated at […]

Real-world radiofrequency radiation (RFR) is pulsed and modulated at extremely low frequencies (ELF). Those pulses forcibly oscillate free ions right next to the S4 voltage-sensor of every voltage-gated ion channel in the body. → S4 moves when it’s not supposed to → channels open/close off-schedule → Ca²⁺ timing signals inside the cell become noise. → […]

Recent high-certainty evidence from WHO-commissioned systematic reviews confirms that radiofrequency electromagnetic fields (RF-EMF) induce malignant heart Schwannomas and brain gliomas in rodents, and reduce male fertility with high certainty. These rare tumor types and tissue-specific reproductive effects have long appeared disparate. Here we propose a unified biophysical mechanism: polarized/low-frequency components of RF-EMF induce forced oscillation […]

Section 704(b) of the Telecom Act: A Federal Gag on RF Health Concerns Section 704(b) of the Telecommunications Act of 1996 – often dubbed the “gag clause” – expressly preempts state and local governments from regulating wireless tower placement based on health or environmental effects of radiofrequency (RF) emissions, so long as the facilities comply […]

Modern wireless technologies expose populations continuously to pulsed radiofrequency and microwave (RF/MW) signals at levels that do not cause measurable heating, yet a large body of research indicates these non-thermal exposures can disrupt fundamental biological processes. Specifically, the rapid, millimeter-scale voltage changes that define digital wireless signals can interfere with the S4 voltage-sensor gating in […]

In an era where wireless connectivity underpins global economies and daily existence, the invisible architecture of radiofrequency electromagnetic fields (RF-EMF) demands scrutiny not as an engineering triumph, but as a biophysical exigency. This guide marshals convergent evidence—spanning mechanistic insights into non-thermal disruptions, epidemiological signals of oncogenesis, immunological dysregulation, and reproductive impairment—to dismantle the foundational fallacy […]

Introduction Seminole, Florida, 1996 – A mother tucks her five-year-old daughter into bed. In the living room, a bulky cordless phone with a short antenna sits on its cradle. The home has one desktop computer, plugged into the wall and connected to the Internet by a dial-up modem. Wireless technology is a novelty – clunky […]