Example, you have a signal (low frequency like a phone call magneticaly coupled to your rain water downspout. The frequency is too low to pick up remotely. A rusty joint where the downspout connects to the gutter provides a non-linear mixer. A local AM talk radio show gets weakly modulated in the vicinity of the rain gutter. Audio from 2 am radios one near and one far are subtracted from each other leaving the modulation provided by your phone call and rain downspout. In a tempest secure location, both the signal lines and all metal non electric things like downspouts are electricaly bonded to prevent modulation of other signals. Remember the thing a few years ago with the White House being hit with a strong microwave radiowave? It was spying by hoping acoustic sound or non-linear mixing would modulate the radiowave. (yes it realy happens)
It depends on what attenuation you can live with. It is true you probably will not see much on the water meter above 500KCS due to it being buried in conductive earth, but the principle applies. I have seen 120 KHZ X10 signals on a water pipe. Buried pipe is located by using a coil to induce current into a pipe and using another coil to trace (locate) the pipe. Any call before you dig service uses this to locate underground wires and pipes. Plastic pipe (gas, water, sewer & fiber optic cable) now gets buried with a single conductor wire so it can also be locatedwith this method.
Remember, Double the distance and the effect of the EMP is reduced by a square root! These are limited coverage weapons. To kill all services by all carriers would require a very extensive attack. We do not have a "single shot takes all services out" infastructure. A cell site or two may be taken down, or one service in an area may be down, but don't expect all services to be out for miles and miles. You may be able to roam and if you still have transportation, you may reach an active cell to relay vital information. Even if the worst hapens in a heavy attack, and all services are down, then when the backups are uncased and put online at the cell sites, it's nice to have a working phone to use.
It means, when current flows in a wire it makes a magnetic field. If there is another wire, pipe, desk wall, etc in that magnetic field, the item may get a current induced because it is in the field. This wire, pipe, rebar, etc, may extend outside your secure space and cary your sensitive information with it where it can be detected outside your secure location. An example, your catagory 5 network cable may be run under the house next to your water pipe. Current in the network cable may introduce an induced current into your water pipe. Someone out at the street could sniff your network traffic off your water meter at the street, because of the current induced into the pipe by your network cable. The watermeter would have the same magnetic field caused by the induced current, that the field from the network cable induced into the pipe and hence the ability to sniff the data covertly outside the secure house.
Yes, It's true. Mostly. Filtering on a PC can include the filter in the power supply and ferite beads on keyboard wires which does reduce Tempest exposure, however EMP if strong enough can damage the filter components. Full EMP filtering & shielding usualy does take care of Tempest radiation, but it does not always work the other way around. For the truly paranoid, keep a spare cell phone and 2 way radio (or GPS unit) inside a sealed paint can. That will protect them from most EMP attacks. They can be brought on line quickly after an EMP attack.
Remember, the attack must be in close proximity to work. EMP and light behave the same. Double the distance and the force drops by a square root. This is why the average lightning storm doesn't take out the whole country. I can't see anything as small as a suitcase producing a pulse any stronger than a lightning bolt at the same distance. Too much power on the antenna of the device would make a glowing plasma ball that would absorb much of the pulse power and turn it to heat. Air breaks down at high voltage. Anyone who has built a TESLA COIL knows this. It uses pulses of power great enough to arc over the antenna (coil), but it rarely does damage more than a house away. Most banks and data centers would need the device to discharge within a few hundred feet to do anything more than cause an equipment lockup or reboot. More stuff is going into racks, which provide excelent EMP shielding and fiber optics are immune to EMP. If the stuff is built with filtered power leads to the cabinet and only fiber in and out of the cablnet, it would be very tempest proof. I wouldn't think one of these would shut down all the cars is a city, at least not any more than an electrical storm in the city.
Hmm Amazon.com is like your comparison for a store. I guess tons of rude salespeople from the example would work better it the setting was the woods at the beginning of deer season and all the jackels started poping out from behind trees. They (intrusive junk) would make it hard to find the deer (content) you are searching for. In this setting, it is even more hated. Ad blocking proxies is like shooting anything that jumps out from behind a tree. The hint is "it's not welcome".
I agree on not going back to places that make it hard to get to the content. I made the mistake of looking for MP3's by searching on Yahoo for free MP3's. I got everyting else. Mostly music sites with content in an non MP3 format and for a price. Talk about useless search results! Not only did everything cost money, most everything was incompatible with my MP3 player. Everything went to NAG screens or pages of links going to pages of links & Pop Ups, but no content. There was zero links that took me directly to a free MP3. Needless to say, I don't look for MP3's with Yahoo anymore. The search result was too trashed to be of any use.
I can tell you ignore the banner ads. Most of them would not work with coupons you could take to any local brick and mortar store. Most I've noticed lately are for credit cards, MP3 Player from one online source, computer stuff, gambling, and something I don't know what it is.
Get a clue. The problem is banner ads are ignored. Duh! I wasn't shopping most of the time. Don't waste the money on advertising that does not work. The adverts should be all stuck in some kind of searchable yellow pages or just properly show up in searches. (Yahoo, Excite, Google & others can drop me at your website with the proper short keyword list if I am looking for the best "insert product here") If I want an airline ticket, I'll search for it. If you want top of the list placement in yellow pages, plan on paying for it. If you want to be found with a budget ad in the yellow pages, have the best deal. Most surfers avoid the best financed ads as they never have the best deal. Lets face it, not all web destinations have shoppers looking for a deal. How many people on Slashdot are here shopping for something? A company I worked for got the best results with a yellow pages ad. It was tracked by a unique phone number. It was responsible for more than 80% of the new traffic.
I would like to tell the advertisers to keep the advertising money. If I am not shopping, the ads are useless. If I am shopping, I'll search for the best deal. Stuff in banner ads is rarely the best deal. I did not follow a banner ad to find bulk ink for my inkjet printer or toner for the laser printer. I searched for it. (found great prices too)
Hyjacking sites loose eyeballs. They don't come back. The sooner the advertisers discover this the better. Have you ever abandoned an e-mail account because it became a spam repository? Even essential services will get replaced to avoid excessive slowdowns in productivity. Sites that depend on numbers of unique visitors and repeat visitors will be the first to fall off the radar. Free ISP's will be loaded with cheap people who don't spend any money. Anyone needing fast access will move on to an ISP without it. Lottery, gambeling, and 1-976 sites may end up the only advertisers buying this ad space for that demographic.
Right problem. A machine cranking out 5,000 messages taking up 15 seconds per person to scan and delete uses a total of 75000 seconds of business manpower resources. Scale this to 2,000,000 messages and tally the bill in manpower to the reciepent. That is over 8,000 hours of manpower wasted. I would like to bill the spamers for the resources used on the receiving end.
I believe all mail should be hand written and not mass duplicated that is intended to be read as an email letter.
I believe other info as ads and update information should be posted as a bulletin board item on the company web site and in online classifieds. It should be there so I can find it if I desire to look for it.
Most of the digital AV formats are designed not to allow bit for bit storage and retreival. Because they do not want it to be used for storing AV in a perfectly copyable and playable format they will not want blank media on the market. They want to sell all media prerecorded. They learned that mistake from the Compact Disk. Never will an AV media be usable for binary storage due to CSS, DMCA, Etc. In short, you can't store a binary file in a format that can be directly played on a consumer player and expect to retrieve it intact unchanged. All new digital AV media will be in a proprietary format and protected to the fullest extent of the law.
In a small switching transister, this charge is provided by an eletrostatic charge placed over the gate oxide. Free electrons move about in a conductor (gate) so the more electrons, the more charge (voltage) even if the area of the gate is only a few atoms thick. The transistor responds on the average charge (voltage). When the transistor is in the off state, it is true a few electrons can get through. This is called leakage current and is normal. Not enough electrons get past the off transistor to create enough voltage on the next logic transistor to change it so the chip still works. Smaller transistors do use less power per transister and are faster. This is the big reason for using them. The other reason is you can fit more of them on a chip for more functions (pipeline, cache,16/32/64 bits,Math coprocessor,new instructions etc). It is true that the doping of the silicon and transistor dimensions gets very critical when working with small transistors. It is a tight balance between not enough on current or too much off leakage. It's not easy to make a chip with 20 Million transistors and have every single transistor work.
My ISP provided account is not active (by me). I let them deal with emptying the trash as they and their distribution list are the only ones that fill it anyway. I use another server for may mail even though it is in another country. I am a full time road warrier.
I hope someone uses your email in a forged header so you get all the bounced mail and unsubscribe messages.. The hatemail does not always go to the spammer.
I have e-mail in another country. I used to be able to send and receive from it from anywhere worldwide. It is my very first e-mail account. I liked it so I kept it. There has been a change. I still can get my mail worldwide, but now I have to send mail from whatever ISP POP I am using at the time. I still send and receive mail, but I have to explain to clients that the reply-to is correct, even though the header says otherwise. Moral, not all reply-to at another ISP is fraud. When I am in the United States, I use the sending account of where I am at the time, and I do answer the mail sent to the reply-to address.
I think all accounts should be limited to no more than 50 e-mails/day. Who writes more than 50 e-mails a day. It's already in the user agreements for most ISP's not to bulk e-mail anything, so that shouldn't be a problem. Any exception should require a contract (pink) and a deposit (very hefty) of about $1 per email to raise the daily limit. This could be used by clubs and such that really do have a membership that would like to receive a newsletter. A deposit and no complaints would get them started and keep them going. Abuse would eat the deposit. Complaints are deducted from the deposit at a rate of $250 per complaint. This should restrict most ISP's from being used to annoy the masses.
Check the idle current of a 20 KW inverter VS a 300 watt inverter. Big inverters also are not effecient at light loads. I know which one I would use to watch TV.
Most home users of Win Boxen shut them off after checking the email. Unix Boxen tend to be left on 24 X 7. Someting to think about. I am serious. This is not intended as flaimbait but as a statement of how they are used. Win users either Suspend or shutdown when done. Nix users just logoff and do not Shutdown or Halt.
More rub is distance costs money. Not only in cost of distribution equipment, but also the per mile loss. It is not effecient to have the plant a long way away from the user. The only thing that makes it worth while, is if cheap power is available at a river etc. then the losses are made up in the lower cost of generation.
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Example, you have a signal (low frequency like a phone call magneticaly coupled to your rain water downspout. The frequency is too low to pick up remotely. A rusty joint where the downspout connects to the gutter provides a non-linear mixer. A local AM talk radio show gets weakly modulated in the vicinity of the rain gutter. Audio from 2 am radios one near and one far are subtracted from each other leaving the modulation provided by your phone call and rain downspout. In a tempest secure location, both the signal lines and all metal non electric things like downspouts are electricaly bonded to prevent modulation of other signals. Remember the thing a few years ago with the White House being hit with a strong microwave radiowave? It was spying by hoping acoustic sound or non-linear mixing would modulate the radiowave. (yes it realy happens)
It depends on what attenuation you can live with. It is true you probably will not see much on the water meter above 500KCS due to it being buried in conductive earth, but the principle applies. I have seen 120 KHZ X10 signals on a water pipe. Buried pipe is located by using a coil to induce current into a pipe and using another coil to trace (locate) the pipe. Any call before you dig service uses this to locate underground wires and pipes. Plastic pipe (gas, water, sewer & fiber optic cable) now gets buried with a single conductor wire so it can also be locatedwith this method.
Remember, Double the distance and the effect of the EMP is reduced by a square root! These are limited coverage weapons. To kill all services by all carriers would require a very extensive attack. We do not have a "single shot takes all services out" infastructure. A cell site or two may be taken down, or one service in an area may be down, but don't expect all services to be out for miles and miles. You may be able to roam and if you still have transportation, you may reach an active cell to relay vital information. Even if the worst hapens in a heavy attack, and all services are down, then when the backups are uncased and put online at the cell sites, it's nice to have a working phone to use.
It means, when current flows in a wire it makes a magnetic field. If there is another wire, pipe, desk wall, etc in that magnetic field, the item may get a current induced because it is in the field. This wire, pipe, rebar, etc, may extend outside your secure space and cary your sensitive information with it where it can be detected outside your secure location. An example, your catagory 5 network cable may be run under the house next to your water pipe. Current in the network cable may introduce an induced current into your water pipe. Someone out at the street could sniff your network traffic off your water meter at the street, because of the current induced into the pipe by your network cable. The watermeter would have the same magnetic field caused by the induced current, that the field from the network cable induced into the pipe and hence the ability to sniff the data covertly outside the secure house.
Yes, It's true. Mostly. Filtering on a PC can include the filter in the power supply and ferite beads on keyboard wires which does reduce Tempest exposure, however EMP if strong enough can damage the filter components. Full EMP filtering & shielding usualy does take care of Tempest radiation, but it does not always work the other way around. For the truly paranoid, keep a spare cell phone and 2 way radio (or GPS unit) inside a sealed paint can. That will protect them from most EMP attacks. They can be brought on line quickly after an EMP attack.
Remember, the attack must be in close proximity to work. EMP and light behave the same. Double the distance and the force drops by a square root. This is why the average lightning storm doesn't take out the whole country. I can't see anything as small as a suitcase producing a pulse any stronger than a lightning bolt at the same distance. Too much power on the antenna of the device would make a glowing plasma ball that would absorb much of the pulse power and turn it to heat. Air breaks down at high voltage. Anyone who has built a TESLA COIL knows this. It uses pulses of power great enough to arc over the antenna (coil), but it rarely does damage more than a house away. Most banks and data centers would need the device to discharge within a few hundred feet to do anything more than cause an equipment lockup or reboot. More stuff is going into racks, which provide excelent EMP shielding and fiber optics are immune to EMP. If the stuff is built with filtered power leads to the cabinet and only fiber in and out of the cablnet, it would be very tempest proof. I wouldn't think one of these would shut down all the cars is a city, at least not any more than an electrical storm in the city.
All your older earth movers, trucks, trains, and buses using old fashioned diesel should still work fine.
Hmm, It looks like it's just smoking now and not throwing out too much new stuff yet. I wonder if it will pop like Mt. Saint Helens.
Hmm Amazon.com is like your comparison for a store. I guess tons of rude salespeople from the example would work better it the setting was the woods at the beginning of deer season and all the jackels started poping out from behind trees. They (intrusive junk) would make it hard to find the deer (content) you are searching for. In this setting, it is even more hated. Ad blocking proxies is like shooting anything that jumps out from behind a tree. The hint is "it's not welcome".
I agree on not going back to places that make it hard to get to the content. I made the mistake of looking for MP3's by searching on Yahoo for free MP3's. I got everyting else. Mostly music sites with content in an non MP3 format and for a price. Talk about useless search results! Not only did everything cost money, most everything was incompatible with my MP3 player. Everything went to NAG screens or pages of links going to pages of links & Pop Ups, but no content. There was zero links that took me directly to a free MP3. Needless to say, I don't look for MP3's with Yahoo anymore. The search result was too trashed to be of any use.
I can tell you ignore the banner ads. Most of them would not work with coupons you could take to any local brick and mortar store. Most I've noticed lately are for credit cards, MP3 Player from one online source, computer stuff, gambling, and something I don't know what it is.
Get a clue. The problem is banner ads are ignored. Duh! I wasn't shopping most of the time. Don't waste the money on advertising that does not work. The adverts should be all stuck in some kind of searchable yellow pages or just properly show up in searches. (Yahoo, Excite, Google & others can drop me at your website with the proper short keyword list if I am looking for the best "insert product here") If I want an airline ticket, I'll search for it. If you want top of the list placement in yellow pages, plan on paying for it. If you want to be found with a budget ad in the yellow pages, have the best deal. Most surfers avoid the best financed ads as they never have the best deal. Lets face it, not all web destinations have shoppers looking for a deal. How many people on Slashdot are here shopping for something? A company I worked for got the best results with a yellow pages ad. It was tracked by a unique phone number. It was responsible for more than 80% of the new traffic.
I would like to tell the advertisers to keep the advertising money. If I am not shopping, the ads are useless. If I am shopping, I'll search for the best deal. Stuff in banner ads is rarely the best deal. I did not follow a banner ad to find bulk ink for my inkjet printer or toner for the laser printer. I searched for it. (found great prices too)
Hyjacking sites loose eyeballs. They don't come back. The sooner the advertisers discover this the better. Have you ever abandoned an e-mail account because it became a spam repository? Even essential services will get replaced to avoid excessive slowdowns in productivity. Sites that depend on numbers of unique visitors and repeat visitors will be the first to fall off the radar. Free ISP's will be loaded with cheap people who don't spend any money. Anyone needing fast access will move on to an ISP without it. Lottery, gambeling, and 1-976 sites may end up the only advertisers buying this ad space for that demographic.
I believe all mail should be hand written and not mass duplicated that is intended to be read as an email letter.
I believe other info as ads and update information should be posted as a bulletin board item on the company web site and in online classifieds. It should be there so I can find it if I desire to look for it.
Most of the digital AV formats are designed not to allow bit for bit storage and retreival. Because they do not want it to be used for storing AV in a perfectly copyable and playable format they will not want blank media on the market. They want to sell all media prerecorded. They learned that mistake from the Compact Disk. Never will an AV media be usable for binary storage due to CSS, DMCA, Etc. In short, you can't store a binary file in a format that can be directly played on a consumer player and expect to retrieve it intact unchanged. All new digital AV media will be in a proprietary format and protected to the fullest extent of the law.
In a small switching transister, this charge is provided by an eletrostatic charge placed over the gate oxide. Free electrons move about in a conductor (gate) so the more electrons, the more charge (voltage) even if the area of the gate is only a few atoms thick. The transistor responds on the average charge (voltage). When the transistor is in the off state, it is true a few electrons can get through. This is called leakage current and is normal. Not enough electrons get past the off transistor to create enough voltage on the next logic transistor to change it so the chip still works. Smaller transistors do use less power per transister and are faster. This is the big reason for using them. The other reason is you can fit more of them on a chip for more functions (pipeline, cache,16/32/64 bits,Math coprocessor,new instructions etc). It is true that the doping of the silicon and transistor dimensions gets very critical when working with small transistors. It is a tight balance between not enough on current or too much off leakage. It's not easy to make a chip with 20 Million transistors and have every single transistor work.
Ummm... Try booting that copy of DOS 2.1 that fit on a single floppy. Or better yet, try booting WIN ME on your old 486...
My ISP provided account is not active (by me). I let them deal with emptying the trash as they and their distribution list are the only ones that fill it anyway. I use another server for may mail even though it is in another country. I am a full time road warrier.
I hope someone uses your email in a forged header so you get all the bounced mail and unsubscribe messages.. The hatemail does not always go to the spammer.
I have e-mail in another country. I used to be able to send and receive from it from anywhere worldwide. It is my very first e-mail account. I liked it so I kept it. There has been a change. I still can get my mail worldwide, but now I have to send mail from whatever ISP POP I am using at the time. I still send and receive mail, but I have to explain to clients that the reply-to is correct, even though the header says otherwise. Moral, not all reply-to at another ISP is fraud. When I am in the United States, I use the sending account of where I am at the time, and I do answer the mail sent to the reply-to address.
I think all accounts should be limited to no more than 50 e-mails/day. Who writes more than 50 e-mails a day. It's already in the user agreements for most ISP's not to bulk e-mail anything, so that shouldn't be a problem. Any exception should require a contract (pink) and a deposit (very hefty) of about $1 per email to raise the daily limit. This could be used by clubs and such that really do have a membership that would like to receive a newsletter. A deposit and no complaints would get them started and keep them going. Abuse would eat the deposit. Complaints are deducted from the deposit at a rate of $250 per complaint. This should restrict most ISP's from being used to annoy the masses.
Check the idle current of a 20 KW inverter VS a 300 watt inverter. Big inverters also are not effecient at light loads. I know which one I would use to watch TV.
Most home users of Win Boxen shut them off after checking the email. Unix Boxen tend to be left on 24 X 7. Someting to think about. I am serious. This is not intended as flaimbait but as a statement of how they are used. Win users either Suspend or shutdown when done. Nix users just logoff and do not Shutdown or Halt.
More rub is distance costs money. Not only in cost of distribution equipment, but also the per mile loss. It is not effecient to have the plant a long way away from the user. The only thing that makes it worth while, is if cheap power is available at a river etc. then the losses are made up in the lower cost of generation.