Mastodawn

Spectrum Stewardship: Why “Everything is NOT Fine.”

2,667 words, 14 minutes read time.

Amateur radio is bleeding out from a thousand self-inflicted technical cuts, and the patient is too deluded by the “everything is fine” mantra to notice the arterial spray. For decades, we have let the standards slide, trading the disciplined engineering of the mid-century for the cheap, plug-and-play convenience of imported junk and “appliance operator” apathy. We’ve grown soft. We’ve started treating the radio spectrum like a public park where anyone can dump their trash, forgetting that we are licensed stewards of a finite and increasingly hostile RF environment.

I have been in this hobby for nearly 16 years now, and to be honest, I have seen the enforcement and knowledge level drop firsthand. I know that by sounding the alarm, I am risking being labeled a “grumpy old ham”—the kind who complains just for the sake of it. But that couldn’t be further from the truth. I’m not here to gatekeep; I’m here to act as a scout. I see a new generation of younger hams who are anxious and excited to get on the bands, and I want them to stay there. My goal is to prevent these new operators from unknowingly walking into a buzzsaw of federal fines and license revocations because they weren’t warned about the gear they were using.

In my previous post, I laid out the blunt reality of spectral filth. Since then, it has become apparent that a dangerous sentiment is taking root in our ranks: the idea that technical decay is an “imagined” problem or a mere obsession of a few “curmudgeons.” This dismissal is a luxury we can no longer afford. I’m not speaking from a throne of perfection—I’ve been there. I have stood at the transmitter, keyed up a cheap Baofeng, and broadcasted without the slightest understanding of what splatter or out-of-band emissions actually were. I was part of the noise. I didn’t realize that my “affordable” entry into the hobby was actually a weaponized piece of interference that threatened the integrity of the bands I wanted to enjoy.

But ignorance is only an excuse until you know better. Recently, I have seen a renewed effort to increase technical literacy and get crappy equipment off the air. We are finally realizing that helping the next generation doesn’t mean lowering the bar—it means giving them the tools to clear it safely. Once you understand the physics, continuing to transmit a dirty signal isn’t a mistake; it’s a choice.

The FCC has Grown Teeth: Beyond the “Mean Letter”

For years, the Amateur community grew complacent, fueled by the myth that the FCC didn’t have the budget or the interest to police the ham bands. That era of benign neglect is over. The Commission has stopped sending “mean letters” that get tucked away in a desk drawer and has started wielding the hammer of Forfeiture Orders and Field Seizures. With the adoption of the FCC 26-28 Framework in April 2026, the Enforcement Bureau has been revitalized with automated remote monitoring sites and a mandate for “Proactive Spectrum Integrity.” They aren’t waiting for a interference complaint from your neighbor anymore; they are using wide-area software-defined sensors to flag “dirty” signatures in real-time. If you are splattering or radiating harmonics, you aren’t just an annoyance—you are a blip on a federal radar that now has the teeth to bite back.

The Ghost of CB Past and the Seven Signs of Failure

We have seen this movie before, and we know exactly how it ends. In 1983, when the FCC abandoned CB licensing, the band didn’t just “open up”—it spiraled into a technical graveyard. By removing the requirement for a license, the FCC essentially removed the requirement for accountability. Almost overnight, 27 MHz was transformed from a vital short-range communication tool into a wasteland of over-modulated noise and “private broadcasters.” These were operators who decided that the rules of physics didn’t apply to them, using illegal linear amplifiers to pump spectral filth across the spectrum just to be the loudest voice in an empty room.

The technical discipline of the “Community of Substance” was drowned out by roger beeps, echo mics, and massive splatter that made adjacent channels unusable. Amateur radio is currently teetering on that same precipice. When you dismiss spectral purity as “gatekeeping” or “elitism,” you are actively advocating for the CB-ification of our bands. You are arguing for a world where ego-driven broadcasting replaces disciplined engineering. Once a band becomes a high-noise floor landfill, the serious operators leave, the emergency services look elsewhere, and the “private broadcasters” are left shouting into a void of their own creation.

The consequences of this “everything is fine” apathy are visible in the wreckage of these seven recent enforcement actions:

The Pittsburgh EMS Crisis (March 25, 2026): Technician Class licensee David J. Miller (KD3ASC) utilized a modified BTech UV-Pro handheld as an unauthorized, uncoordinated simplex repeater. Because the device was “unlocked” and operated outside of its intended design parameters without any output filtering, it generated massive out-of-band emissions. These spurious signals landed directly on the Allegheny County EMS primary dispatch frequency, “desensing” their receivers and blocking critical emergency traffic for over two hours. The FCC Enforcement Bureau utilized its new high-resolution direction-finding network to triangulate the source to Miller’s residence within minutes. The operation resulted in an immediate federal equipment seizure, a proposed forfeiture of $18,500, and the permanent revocation of his license. This case stands as a brutal reminder: when your technical “short-cuts” delay an ambulance, the “hobbyist” excuse carries zero weight in a court of law.
The Boeing 787 Transponder Blindness (April 2026): Under Docket No. FAA-2025-0924, federal investigators confirmed that high-altitude “CW interference” effectively blinded the Integrated Surveillance System (ISSPU) on Boeing 787s, causing them to drop off radar at 1030 MHz and 1090 MHz. While the FAA’s $8 million hardware mandate protects the planes, the FCC’s hunt for the “terrestrial sources” revealed a split reality of accountability. The largest sources were traced back to aging industrial heating arrays and legacy military-contractor radar test sites in the Midwest. These corporate violators are currently shielded behind the redacted “administrative correction” process—fixing their leaky hardware in private to avoid public scandal. However, the same investigation snagged several Amateur stations near flight paths whose unsuppressed 2nd and 3rd harmonics were contributing to the L-band noise floor. Unlike the corporations, these operators don’t have a shield; they face public Cease and Desist orders and the immediate suspension of their operating privileges. It’s a stark lesson: the government might let a factory fix its mistakes in the dark, but if you’re a licensed hobbyist leaking filth into a protected aviation band, your “spectral negligence” will be handled in the bright light of a public enforcement action.
The Illinois $25,000 Forfeiture and Revocation (June 2025): The FCC issued a massive fine against General Class licensee Thomas J. Sandman (KC9SDR) for transmitting high-power, broadband “indecipherable noise” that effectively paralyzed a wide swath of the spectrum. This wasn’t just a case of poor audio; it was a total failure of technical discipline, where his station was pumping out a signal so wide and so dirty that it masked legitimate traveler assistance frequencies. When the Enforcement Bureau issued a Notice of Interference, Sandman chose to ignore it, likely believing the old myth that the Commission has no “boots on the ground.” He was wrong. The FCC didn’t just stop at the $25,000 penalty—they moved to permanently revoke his license, ruling that his willful technical negligence and refusal to cooperate proved he lacked the basic character qualifications to be a federal licensee. This is the new reality: if you treat the airwaves like a private jammer, the government won’t just fine you; they will evict you from the hobby entirely.
The Idaho Wildfire Interference (January 2025): Extra Class licensee Jason Frawley (WA7CQ) was slapped with a record-breaking $34,000 fine for intentional interference with U.S. Forest Service radio communications during the “Johnson Fire.” Frawley used his own amateur gear to transmit eight times on a government frequency (151.145 MHz), identifying himself only as “comm tech” while advising aircraft of hazards. This “vigilante dispatching” forced a fire operations chief to leave the fire line to physically track Frawley down at a local airstrip. Despite Frawley’s plea that he was “just trying to help,” the FCC issued the maximum possible forfeiture and moved to permanently revoke his license. This remains the ultimate “don’t be this guy” example: having “good intentions” is not a legal defense for hijacking a public safety frequency during an active emergency.
The 10-Meter Business Band Leak (Late 2025): General Class licensee Robert L. Vance (N8XRT) was hit with a $7,500 fine after his “bargain-basement” amplifier setup crippled a local logistics network. Vance was operating on the 10-meter band (28.400 MHz), but because he was using a poorly shielded, non-compliant HF amplifier, his station was radiating a massive 2nd harmonic directly onto 56.800 MHz—a frequency used by a regional freight-dispatching service. The “leaked” signal was so powerful it completely desensitized the logistics company’s base station, halting truck movements for an entire afternoon. After ignoring a “Good Neighbor” request from the company to check his equipment, the FCC Field Office intervened. Along with the $7,500 forfeiture, Vance was issued a Mandatory Silence Order on the 10-meter band until his station could be independently certified as meeting Part 97.307(d) spectral purity standards. It’s a $7,500 lesson in why “good enough for the ham bands” isn’t good enough when your harmonics start bleeding into the commercial world.
The Maryland Modified-Gear Raid (February 2026): Technician Class licensee Kevin M. Thorne (KC3VLB) faced a coordinated home station raid by FCC agents and local law enforcement. The center of the investigation was a Baofeng UV-5R that Thorne had “unlocked” via a hardware and software modification to transmit on the 700/800 MHz public safety bands. Because these entry-level radios utilize a “System-on-a-Chip” (SoC) design with filtering strictly tuned for amateur frequencies, forcing the device to transmit out-of-band bypassed its internal safeguards. The resulting spurious emissions and harmonic images crippled the local Prince George’s County digital trunking system, corrupting data packets and blocking emergency dispatches. Thorne’s refusal to heed warnings led to the seizure of all his equipment, a $15,000 fine, and the permanent revocation of his license. It’s a stark warning to the “unlocked gear” community: when you strip the filters off a cheap radio to play on forbidden frequencies, you aren’t just an intruder—you are a public safety hazard.

Dangerous Waters: The “Fast-Track” Audit and the Modding Trap

If you think you can fly under the radar because you’re a “small station,” you are operating on a 1995 understanding of federal enforcement. The April 2026 rollout of the Proactive Spectrum Integrity (PSI) framework has fundamentally changed the game. The FCC has shifted from a “wait-and-see” reactive stance to an aggressive, automated audit system.

The Rise of the Remote Monitoring Grid

The Enforcement Bureau is now utilizing a nationwide grid of Remote Monitoring Stations (RMS). These aren’t just listening posts; they are high-resolution software-defined arrays that scan the bands 24/7, flagging “spectral signatures” that deviate from Part 97 standards.

The “Fast-Track” Audit: When the RMS grid detects a signal with harmonics less than 43 dB below the fundamental, or excessive bandwidth splatter, it automatically logs the timestamp, frequency, and signal strength.
The Individual Liability: In the landmark Report and Order (specifically FCC 26-28, adopted April 30, 2026), the FCC clarified that “The manufacturer won’t pay the fine—you will.” If you choose to put a “dirty” import radio or a non-certified, poorly shielded amplifier on the air, you are assuming 100% of the legal and financial risk. The Commission is no longer entertaining the “I didn’t know the radio was bad” defense. As a licensed operator, it is your job to know.

The Lethal Cost of “Unlocking” Gear

We have seen a surge in field seizures lately targeting “unlocked” or “modded” radios—specifically entry-level SoC (System-on-a-Chip) devices like the Baofeng UV-5R or the BTech UV-Pro.

The temptation to perform a “MARC/CAP mod” to transmit on frequencies you aren’t licensed for is high, but the technical cost is often a total loss of spectral filtering. These radios are built with narrow-band filters designed for the ham bands; when you force them to transmit on 700/800 MHz or EMS frequencies, you aren’t just “opening up” the radio—you are stripping off its mask and letting out a torrent of harmonic filth and spurious images.

As the cases of Kevin M. Thorne (KC3VLB) and David J. Miller (KD3ASC) prove, once that filth hits a public safety channel, the FCC doesn’t just send a letter. They send agents, they seize your entire shack, and they hand you a bill that costs more than a used car.

The Command to Discipline: Hardening the Shack

The history of cheap, imported radios is a history of “compliance in name only.” You are the control operator. If you buy a $25 splatterbox and hook it up to a high-gain antenna, the legal liability stops with you. Everything is not fine because we have stopped policing our own stations. Technical mastery is the price of admission for our spectrum.

If your radio is dirty, fix it or take it off the air. Every station should be running a high-quality Low-Pass Filter (LPF) on the output to suppress harmonics before they hit the antenna. You must employ Ferrite Chokes (Type 31 or 43) on every cable to kill common-mode current that turns your shack wiring into an accidental radiator. Finally, verify your station bonding—not just for safety, but to ensure your equipment isn’t leaking RF into every piece of consumer electronics in the neighborhood.

The choice is yours: be a person of substance who respects the physics of the medium, or be the reason the next generation loses their privileges entirely. Stop the “private broadcaster” mindset. Solder the connections, filter the output, and prove you’re worth the frequency you’re occupying.

— 73 —
W8DBK

Call to Action

Don’t take my word for it—prove me wrong. Take your primary rig to the next club meeting, put it on a calibrated spectrum analyzer, and see what you’re actually dumping into the air. If you’re clean, carry on. If you’re radiating filth, fix it before the automated grid sends you a bill.

What’s your station’s harmonic suppression look like? Drop your results or your filtering setup in the comments below.

SUPPORTSUBSCRIBECONTACT ME

D. Bryan King

Sources

Disclaimer:

The views and opinions expressed in this post are solely those of the author. The information provided is based on personal research, experience, and understanding of the subject matter at the time of writing. Readers should consult relevant experts or authorities for specific guidance related to their unique situations.

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Bryan King May 13

Spectral Filth: Clean Up Your Signal or Shut it Down

1,563 words, 8 minutes read time.

The spectrum is a finite piece of territory, and right now, you’re squatting on it like a man who doesn’t know how to clean his own house. Amateur radio used to be the domain of builders—men who understood that every watt of power was a responsibility. Now, the bands are crawling with appliance operators who treat their rigs like smartphones. They buy a cheap, unbranded box from overseas, hook it up to a sub-par antenna, and start spraying RF across the band like a broken sewer pipe. This isn’t just a technical oversight; it’s a failure of discipline. If your transmitter is throwing spurious emissions, you aren’t a radio operator. You’re a source of pollution. You are the high-frequency equivalent of a neighbor who lets his trash blow into everyone else’s yard. It’s time to stop making excuses, stop blaming the ionosphere for your lack of reach, and start looking at the cold, hard physics of what is actually coming out of your feedline.

THE GUTLESS REALITY OF NON-LINEAR TRASH

When you push a signal through an amplifier, you’re engaging in a fight with physics. If that amplifier isn’t biased correctly—if you’re driving it into saturation because you’re obsessed with the “100W” glowing on your meter—you are creating harmonics. These are the bastard children of your fundamental frequency. You think you’re sitting pretty on 7.150 MHz, but because your hardware is junk or your settings are sloppy, you’re also screaming on 14.300 MHz and 21.450 MHz. This is non-linear distortion, and it is the mark of a man who hasn’t mastered his tools. A real operator knows that the “final” in his radio is a delicate balance of current and voltage. When you push it too hard, the peaks flatten out, the sine wave turns into a jagged mess, and the resulting spectral splatter is an embarrassment. You aren’t just taking up more space than you’re entitled to; you’re stepping on the weak-signal guys three states over who are actually trying to do something meaningful with their license. If you can’t run a clean signal at full power, back the gain off. Mastery isn’t about being the loudest voice in the room; it’s about being the most precise.

SHIELDING, STRAY INDUCTANCE, AND THE COST OF LAZINESS

RF is a restless beast. It doesn’t want to stay on the copper traces of your PCB. It wants to radiate from every unshielded wire, every loose screw, and every poorly grounded chassis. If your hardware looks like a bird’s nest inside, you have already lost the war. Spurious emissions aren’t always harmonics; sometimes they’re parasitic oscillations—high-frequency ghosts born from the stray inductance of long lead wires and the lack of proper bypassing. When you skimp on the build quality, or when you use a switching power supply that hasn’t been filtered for common-mode noise, you are inviting filth into your signal. You wouldn’t drive a car with a leaking fuel line, so why are you operating a radio that leaks RF from its own casing? Every milliwatt that doesn’t go out the antenna port as a clean fundamental frequency is a milliwatt that is working against you. It creates RFI in your own shack, it trips your GFCI breakers, and it makes you a nuisance to your neighbors. You need to understand the mechanics of shielding. A chassis isn’t just a box to hold the components; it’s a Faraday cage. If you’ve compromised that cage because you were too lazy to tighten the bolts or use proper EMI gaskets, you are the problem.

THE GATEKEEPERS: BUYING VS. BUILDING YOUR DEFENSES

If you’re running a high-power station—pushing a kilowatt or more—you don’t play games with homebrew experiments unless you have the lab equipment to back it up. At those levels, the heat and reactive power in a filter are enough to turn cheap components into shrapnel. You buy a commercial Low-Pass Filter (LPF) from the outfits that build them like tanks—Bencher, Barker & Williamson, or DX Engineering. You’re looking for a heavy-duty, shielded enclosure that guarantees at least 50dB to 60dB of attenuation at the second harmonic. This is your “Master Gatekeeper.” It’s the insurance policy that keeps your high-power harmonics from bleeding into every television and radio in a three-block radius. Buying a filter isn’t an admission of defeat; it’s a strategic decision to use a tested, calibrated tool to protect the integrity of the bands. However, if you want to call yourself a master of this craft, you eventually have to build. For low-power rigs or specialized band-pass needs, building your own filter is where the theory becomes reality. You don’t use junk-box parts. You use precision-wound toroids—T50-2 or T60-6 powdered iron—and high-voltage Silver Mica or NP0 capacitors. If you use cheap ceramic discs, your filter’s cutoff frequency will drift as soon as the components get warm, and you’ll watch your SWR climb while your signal turns back into trash. Building a Chebyshev or Elliptic filter forces you to understand the relationship between inductance and capacitance. It’s a rite of passage. But remember: you never put a homebrew filter on the air without verification. You use a Vector Network Analyzer (VNA) to sweep that circuit and prove it’s doing its job. You verify the insertion loss and you confirm the stopband. If you can’t prove it’s clean on the bench, it doesn’t touch the antenna.

Whether you buy it or build it, the responsibility for what leaves your shack stops with you. You wouldn’t drive a truck with no mufflers through a quiet neighborhood at 3 AM, so don’t be the operator who thinks it’s okay to spray wide-band noise across the spectrum because you were too lazy to install a filter. A clean signal is the signature of a disciplined man. It shows you respect the physics of the medium and the rights of every other operator on the air. If you’re too cheap to buy a filter and too lazy to build one, do the world a favor and stay off the mic. The airwaves are a shared resource, not your personal dumping ground. Every time you key up, your reputation is on the line. Are you a technical asset, or are you just more noise? Real operators don’t guess; they measure. They don’t hope; they verify. Master your hardware, tighten your shielding, and for the sake of the hobby, clean up your signal. If you can’t operate with technical integrity, you shouldn’t be operating at all. Solder the solution or shut it down.

SECURE THE SPECTRUM: LOCK DOWN YOUR SIGNAL INTEGRITY NOW

Stop being a spectator in your own shack. If you’ve spent more time looking at the price tag of your rig than the spectral purity of its output, you’re part of the problem. Your license isn’t a trophy; it’s a mandate to maintain technical excellence. If you aren’t checking your footprint, you’re just another lid adding to the noise floor.

Here is your mission:

Audit your signal: Stop trusting the factory sticker. Put your rig on a dummy load, grab a VNA or a spectrum analyzer, and prove to yourself that your second and third harmonics aren’t bleeding into territory where they don’t belong.
Kill the noise: If you find filth, fix it. Solder a low-pass filter, choke your lines with real ferrites, and tighten every screw on your chassis until that Faraday cage is airtight.
Educate the soft: When you hear an operator splashing across the band with a dirty signal, don’t just complain about it on a forum. Direct him to the physics. Demand better from your local club.

The grid is fragile and the noise floor is rising. We need operators who are assets, not liabilities. Clean up your signal today, or pull the plug. The airwaves don’t owe you a thing—you owe them your discipline. Own your frequency or get off it.

SUPPORTSUBSCRIBECONTACT ME

D. Bryan King

Sources

Disclaimer:

The views and opinions expressed in this post are solely those of the author. The information provided is based on personal research, experience, and understanding of the subject matter at the time of writing. Readers should consult relevant experts or authorities for specific guidance related to their unique situations.

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KI7CFO Jan 31, 2024

@dj3ei @Geojoek great info here on #hamrafio #antenna #commonmodecurrent chokes. I suppose anything 100w and less is basically ok?