Archive for category: Radio Frequency Interference

This video presents an inexpensive approach to detecting and recording directed energy weapon attacks using relatively inexpensive equipment. The modifications to the digital voice recorder depicted here required a basic understanding of circuitry and soldering techniques. The total cost of materials is under 200 dollars and depended primarily on the cost of the digital voice recorder. Be sure to buy a digital voice recorder that allows you to upload the recordings into your computer, and one that has two microphones if you choose to do the modifications. WARNING – this will not stop directed energy attacks, but will provide reasonably credible evidence that you and your voice recorder are being exposed to pulses of radio frequency radiation of sufficient strength to compromise the audio circuitry in the voice recorder. The following links were presented in the video: www.scribd.com www.scribd.com The following link provides an example of how digital voice recorders could be used to provide evidence of directed energy attacks: www.scribd.com
Video Rating: 5 / 5

FireStorm’s Capabilities: First, let’s look at what FireStorm spark plugs give an internal combustion engine: • More horsepower; • 44–50% increase in mpg; • Dramatic decrease in emissions. Second, let’s see what FireStorm plugs eliminate: • Smog pump; • Catalytic converter; • Radio frequency interference (RFI) and the use of resistors in the centre electrode; • Gap growth; • Exhaust gas recirculation (EGR) systems; • Misfire/hesitation/detonation/stutter and stumble. How, you may ask, is all this achieved? In a word, plasma
Video Rating: 4 / 5

Some cool Radio Frequency Interference images:

RFI testing of Playstation 3 dualshock

Image by C G-K
I live on a radio observatory that operates within 0.5 – 12.5GHz. Luckily, our house is about 1km from the center of the ATA, but, we still want to limit our RF emissions as much as possible. However, we’d also like to use our new ps3! So, I just borrowed our 0-26GHz spectrum analyzer and mated it with a 2-12GHz horn et voila:

The first part of the video is a bit too dark and it is of me showing the controller plugged into the USB cable, and then turning on the ps3 with the controller. I then put the analyzer into max hold mode to show that there is a bit of bluetooth communications in the first 1-2s of operation, but not afterward.

A) It can see the bluetooth comms in the alloted 2.4-2.481GHz
B) When plugged into USB, the controllers *do not use bluetooth* (WOO!)
C) When first turned on, even with the USB cable plugged in, there’s a small amount of bluetooth comms in the first 1-2 seconds.
D) The horn was about 1ft away from the controller, background (controller off) level when measuring 2.350 – 2.520 was about -61dBm
Da) When turned on, the peak bluetooth signals were -30dBm at 1ft with most being smaller.

Looking Down

Image by Paul L McCord Jr
This is at the 50 foot level looking straight down. This shows my radio frequency interference (RFI) problem with my neighbor’s power and cable lines literally feet from my tower.