imin2bdsm
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Joined: 7/26/2007
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quote:
ORIGINAL: MercTech
quote:
ORIGINAL: thompsonx
We were talking about the fact that the freq of a smart gun can be jammed they have all the possibilities of problems that other guns do plus.
No that was one of your unsubstantiated fears. You know fuck all about this gun and yet you are throwing all this "what if" bullshit in. Until you have some concrete evidence why are you running your mouth?
Think what a thunderstorm can do to an electronic
signal.
What the fuck can a thunderstorm do to an eletronic signal? Not a motherfucking thing...it cant start it and it cannot stop it. Radios,telephones,radar,aircraft all work in thunderstorms.
If a lightning bolt lands close enough to interrupt the signal from the rfid wrist band it may be that you have more pressing issues than a malfucntion.
The possibility of something like a broken firing pin (which has happened to me once in 55 years of shooting) is why I carry a backup.
Omg By your own admission you are an old fat guy with no assets yet you are so in fear that you have attack dogs to protect you and carry two guns???What the fuck are you afraid they are going to take from you.?
Anything that relies on electronics or electrical connection can be disabled by an EMF pulse of sufficient strength. (EMF => Elecrtomotive Force)
It is very easy to disrupt RFID circuitry with EMF. It often occurs in industrial environments with things like welding machines. A RFID reader just flat does not work within about ten feet of a welder striking an arc.
Thunderstorms commonly disrupt electronics with the EMF of lightning strikes. A strike within a few miles will cause a reset of internet routers and temporarily stop things like cable channels or internet connections. A close strike can destroy televisions, radios, and computers just from the EMF.
And EMF bomb is very easy to make and can be used to take out all electronics in a radius of the center of the pulse.
And I would be interested in seeing if the circuitry used in a smart gun is hardened enough to not be taken out by something as mundane as a cellphone jammer.
This is all basic high school level science.
"Electromotive force, also called emf (denoted \mathcal{E} and measured in volts), is the voltage developed by any source of electrical energy such as a battery or dynamo.
The word "force" in this case is not used to mean mechanical force, measured in newtons, but a potential, or energy per unit of charge, measured in volts."
"An electromagnetic pulse (EMP), also sometimes called a transient electromagnetic disturbance, is a short burst of electromagnetic energy. Such a pulse may occur in the form of a radiated electric or magnetic field or conducted electrical current depending on the source, and may be natural or man-made. The term "electromagnetic pulse" is commonly abbreviated to EMP, pronounced by saying the letters separately (E-M-P).
EMP interference is generally damaging to electronic equipment, and at higher energy levels a powerful EMP event such as a lightning strike can damage physical objects such as buildings and aircraft structures. The management of EMP effects is an important branch of electromagnetic compatibility (EMC) engineering."
(edited to add)
"Cell Phone Jamming Device
Jamming devices overpower the cell phone by transmitting a signal on the same frequency and at a high enough power that the two signals collide and cancel each other out. Cell phones are designed to add power if they experience low-level interference, so the jammer must recognize and match the power increase from the phone.
Cell phones are full-duplex devices, which means they use two separate frequencies, one for talking and one for listening simultaneously. Some jammers block only one of the frequencies used by cell phones, which has the effect of blocking both. The phone is tricked into thinking there is no service because it can receive only one of the frequencies.
Less complex devices block only one group of frequencies, while sophisticated jammers can block several types of networks at once to head off dual-mode or tri-mode phones that automatically switch among different network types to find an open signal. Some of the high-end devices block all frequencies at once, and others can be tuned to specific frequencies.
To jam a cell phone, all you need is a device that broadcasts on the correct frequencies. Although different cellular systems process signals differently, all cell-phone networks use radio signals that can be interrupted. GSM, used in digital cellular and PCS-based systems, operates in the 900-MHz and 1800-MHz bands in Europe and Asia and in the 1900-MHz (sometimes referred to as 1.9-GHz) band in the United States. Jammers can broadcast on any frequency and are effective against AMPS, CDMA, TDMA, GSM, PCS, DCS, iDEN and Nextel systems. Old-fashioned analog cell phones and today's digital devices are equally susceptible to jamming.
The actual range of the jammer depends on its power and the local environment, which may include hills or walls of a building that block the jamming signal. Low-powered jammers block calls in a range of about 30 feet (9 m). Higher-powered units create a cell-free zone as large as a football field. Units used by law enforcement can shut down service up to 1 mile (1.6 km) from the device."
< Message edited by imin2bdsm -- 5/6/2014 5:15:05 PM >
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