šØ The āCyber Shieldā Scam: Debunking David Rubleās Fake Jammer
The TI community is under attack ā not just by weaponized tech, but by grifters exploiting confusion and desperation. One of the most damaging today is the so-called āCyber Shieldā device sold by David Ruble, who claims it jams targeting signals by heterodyning RF down into the brainwave range (5ā40 Hz).
Letās be clear:
ā The device does not jam anything.
ā The science Ruble claims to use is impossible with the hardware heās using.
ā And if his device does transmit anything, it may be illegal under federal law.
š What Ruble Claims
David Ruble claims his device:
- Uses multiple ADF4351 RF synthesizers this was figured out by looking at pictures of his device
- Is controlled by a microcontroller
- “Heterodynes” signals down to affect brainwave regions
- Doesn’t need to āfind the frequencyā ā because it supposedly interferes at a lower harmonic layer
When I asked him directly:
āHow can you jam a signal if you never found the frequency attacking the person?ā
He responded:
āIt heterodynes down to the brainwave region ā it doesnāt need to find the frequency.ā
š¬ That response triggered my skepticism ā so I built out the setup myself to test it.
āļø I Tried to Recreate It ā It Doesn’t Work
I attempted to replicate Rubleās setup, using:
- The same ADF4351 modules
- A similar microcontroller
- Custom firmware to mimic his ājamming patternā
š„ Result:
- The ADF4351 cannot generate or interact with anything close to 5ā40 Hz.
- It operates in the 35 MHz to 4.4 GHz range ā millions of times above brainwave frequencies.
- It has a resolution bandwidth (RBW) of 300 kHz, which means it can’t generate tightly spaced waveforms anywhere near the necessary Hz resolution.
To interact with brainwave bands, youād need:
- Precision signal generation in the 5ā40 Hz range
- Controlled phase and amplitude modulation
- Hardware that costs over $5,000+
ADF4351 chips? Completely incapable of it.
āļø Legal Reality: This Might Be a Felony
Letās entertain the idea that Rubleās device does output random RF noise.
If it does, even accidentally, and it emits into the public RF spectrum without FCC authorization:
šØ That makes it a radio frequency jammer ā and that is a felony in the United States.
According to the FCC:
āThe use of a jammer⦠is a violation of federal law⦠punishable by fines of up to $112,500 per act and criminal penalties including imprisonment.ā
So letās get this straight:
- If the device does nothing: Itās a scam
- If the device transmits noise: Itās illegal
Either way? Youāre paying for trouble ā not protection.
š©āš» False Testimonials & Social Engineering
Rubleās scheme is also propped up by a group of women making unverifiable testimonials:
- Claiming āmiraculous resultsā
- Offering emotional stories with no scientific backing
- Often repeating Rubleās exact pseudoscientific phrases
No spectrum analysis.
No control experiments.
No data. Just word-of-mouth manipulation.
Itās emotional bait ā not evidence.
ā Jamming What, Exactly?
Letās revisit the most basic flaw in Rubleās logic:
āHow can you jam something⦠if you never even found what frequency is attacking people?ā
Ruble never provides a measurement, never shows:
- A spectrum trace
- A near-field EM probe readout
- A directional source or signal fingerprint
Without identifying the signal:
- You canāt build a countermeasure
- You canāt create interference
- You canāt tailor a waveform
Itās RF engineering 101.
And yet Ruble skips this step entirely ā because he knows his device canāt detect anything real to begin with.
š§ Why This Scam Hurts the TI Community
Rubleās fake science and scammy product:
- Steals thousands of dollars from vulnerable people
- Gives false hope that blocks real solutions
- Discredits legitimate research and testing
- Could even get buyers in legal trouble
Scams like this slow down our fight for real answers ā and give ammo to skeptics and disinfo agents looking to label TIs as delusional.
š§¾ Final Thoughts: Stay Sharp
Letās call this what it is:
ā A toy pretending to be a defense tool.
ā A theory pretending to be science.
ā A fraud, hiding behind tech buzzwords.
We donāt need more noise. We need repeatable data, validated tools, and truth.