" Welcome Revision 3 episode 68 up Patrick Norton I'm -- runoff election would test it permanently tirelessly failure episode right attempt to create a twelve mile Wi-Fi connection between point they except this to a point beat the Oakland hills and fail. Mightily. The Japanese took a long ago that an announcement yet and we learned a lot the process well that's what we're that I mean you get a lot of research on this I mean you were just through search and -- pages and books and everything like that. -- other guys like you know we got some directional antennas were really strong. You know traditionally a system we basically pull the other some aluminum foil and duct -- it only divert me -- antennas. But the turn his wife find it all we needed to capture -- and every modified some light stands for use -- Wi-Fi antennas and notice the careful use of staffers tapes of not to damage the incredibly expensive light stand for variety this. But I -- grass. The point is those that that Wi-Fi antennas for two point maybe you want if you even putting her CompUSA are big box store and find name brand. Six in ten Extenders for for base stations hawking is everywhere a lot of antennas and some of -- pretty high quality -- online. There is an amazing array of vendors selling high quality especially directional antennas that are very cheap it's. Hyper link technology or personal favor the giving up like 24 DBI parabolic antennas. Nothing wrong with it some copper and a soldering -- and closed wire and somebody's old directly he had to -- make your directional antenna you get a nice 20/20 2040 bi directional antenna that way. But sometimes it's just easier it's like the credit card. So in short what are the three things that's gonna take part dependent. Build super long since most of three things we have to worry about the -- well it's an interesting and the you know I would've thought that the transmitter power. And the antenna and it and how strongly receivers are actually sensitive receiver in the Wi-Fi cards right and I would've thought -- would have been 123. The reality though if you look at the biggest increases in the distance you can cover. The reserve the sensitivity of the receiver which can be buried in the -- he's talking cars about seventy DB for these say HWG one's. For the classic. Don't mind mechanical Hornets will be gone personal like my motorcycle until later something that's -- it can -- can't act out of it you cycle -- cards for me to -- around three -- again that's a style of motorcycle or racing. The interesting thing we found that if you sort of player has asserted in keeping this is. Right to start the one mile connection worked quarry we try to -- twelve miles for the connection. Failed miserably got basically a mobile atop the hill on trying to connect to this system secret layer in San Francisco and pick it up. Two or three other San Cisco hotspots but I cannot pick -- system. So then we started basically pour online calculators and learned three things one the sensitivity of your cards is the most important thing. When try to do long distance connection so if we're gonna spend 500 dollars or Montana resident hundred dollars on wireless card. Exactly because what happens if you know they they HWG ones these are great purple -- connection these were great we did a pretty good job. Especially with the directional antennas. However there are only seven need to be sensitive if we take that to a car like in the classic or no go war driving -- now sold my approximate. They're ninety youth sensitive. And if we're gonna run account clear couple's second what you see is that you know increasingly sensitive this car has a dramatic effect on the kind of range you can get. After that the most dramatic impact them on the range is the antenna using it both -- now for local if you're trying to cover like. I can't this an office your house. You can view a lot of amazing stuff with a small omni directional antenna. Or actually something we've played around we've we've talked about and of early show was basically -- aluminum foil and cardboard. And you're doing that the simple to use take aluminum foil I glue it to a file Fuller and then put it in a ninety degree sheep. Behind your hot spot. I don't tutorial minds is how proud cuts and and all the CDs glued together let's yeah well I've actually moves really strange is taxable pulling through it. Somebody took let's say when -- did on making those homemade current politics on deal TV posted it on of YouTube small place like a 100000 people look at classical like what days. So apparently a lot of people are pissed off about Wi-Fi reception. What is -- you -- I'm thinking it's gotta be the Wi-Fi. You I'm just not that pretty good. What's amazing -- right just playing around like you know fifteen cents worth of aluminum foil. Cardboard and you know glue can make it dramatic difference you have a house where you are you Wi-Fi. You know you're Wi-Fi. You're. Brouder don't -- your wireless access points and one quarter we have trouble a far corner of the house. To the you can do to improve the reception. Moving to the middle of the house or you don't make one of these cheap homemade. Parabolic reflectors and concentrate the signal so it's going you know to the far corner -- your house so it's not radiating 362. -- type fast promises to collect data possibly. That costs about twenty bucks to about twenty bucks and the overly complicated inside the facts."

" Well you -- right it's basically piece of wire but it's a very carefully tuned piece of wire act we can spend. You know we can do it in 88 hour day system for a week and and fairly cover. The complications of calculating something like this and this is supposed to get ten dvi efficient antenna it's selling for about ten bucks this does a pretty good job. Basically. You know. What it does is in theory right if we get into that magic physics Lan. You know where everything works like there's no atmosphere no electromagnetic fear instant and in all that good stuff the idea of a typical antennas going to radiate equally in all directions all look points. In you know sort of 360 degrees that is sort of Brady happens spear. We can do on the directional antenna write these as he ought to be be 3-D B five BB seven dvd nine DB can easily have twelve GB and what that essentially does is instead of Reading down -- up. It's sort of squishy is the single pattern of the antenna and turns it is sort of a giant doughnut. Right in his as the strength goes up. The -- this of the -- goes down or its its -- basically. You get you get less -- so this -- covering twelve stories of the building the five stories of ability to two stories of the building. But it goes from covering like the room to the city block to the half mile around the city block."

" I -- from basketball to an interview Brett kind of ratio wise thing kind cut costs that."

" Yeah or you know if you're sitting at the fifty yard line and a football stadium. Right you may get like you know a nice fifty yard radius around your Wi-Fi hotspots. Right and if you put it on TV antenna meeting goes up 200 yards. But suddenly the people in -- in. Rose thirty through fifty can't do it. And and you get it down to you know like attend dvi and had -- suddenly people are getting out a parking lot you know. -- in the concrete of the stadium don't think this is concrete and brick and steel and stone. And building materials in general stop Wi-Fi Wi-Fi the very line of sight kind of thing. But you know you're gonna yearling and be like. You know a couple stories off the ground. You know if you're -- war driving viewed in your life on either seven dvi antenna and I'm gonna pick up everything will appear in Nebraska and it's flat. The seven dvi and is great if you're gonna be reaching out hundreds of yards miles into the distance. If you're -- city. It's almost useless because you're only gonna be getting -- reception it was seven dvi antenna in the city you get maybe the top three -- force floors of the building. It may be 25 stories of the building if you go to three dvi antenna you're not reaching the the next block her you know halfway into the next office building. But you are reaching -- to the tenth or twelfth floor of the buildings that are around. So. He's also -- like this is great when things we found that is that not all antennas no matter what they're rated as are equal you know if we look at this. -- in -- another omni directional antenna over here. Does the whole another hawking antennas that's available pretty commonly computers sources at -- TV antenna. When we started doing that shoot off of those the rooftop in the back of the -- three offices. We really get a pretty good connection off of this. With you know this is a ten dvi Nintendo basically put him in the same spot the ten dvi antenna wasn't able to get a consistent connection. -- you now. I'm willing infineon and when you connect you have the nine TV antenna. Actually this night TV antenna was pretty effective which is to say. Sometimes. Tend TV doesn't be -- dvd quality V antenna or the size of the antenna in designing the antenna. You know -- alive affects a lot so you know. Twenty dollars great for your house hundred dollars is great for him is basically designed to be installed outside working it's a pretty hardcore coverage inside an office building."

" I think you're outside you don't tell -- how are you gonna do of one of these little suckers all the time yeah. So what is that and -- we have my mouse appointments. Well if you're thinking about running cable. What have a little lightning strikes you're building. -- that I find ground whenever can't name what part of your -- just lightning strike usually it usually wherever you know -- can't happen."

" And so the higher it is more likely it is to be struck friends. So unless you want to be sitting at your computer one -- in a thunderstorm instantly find yourself feeling the effects of whitening. Basically to ground connector installed. General it's gonna be. You know you're gonna have your cable running your antenna somewhere near the outside the base of the building you're gonna drive and a big spike -- your gonna pick up from your local you know Home Depot -- store. You're not comfortable electron if you're comfortable electricity I highly recommend -- hiring a professional to do this. Because you know what it sounds simple you try to piece of metal into the ground you're on the wire from metal to this. This is connected to your cable in the ideas that the electrical his head of the white paint. Goes from the sky ATV antenna to the ground point outside your house rather than running your computer your fingertips are blowing your monitor routers or anything else. You -- you're not comfortable with doing electrical work. Pay the money to have professional yeah the big hills who rely generally connect. Some sort of wireless device whether it's a browser or a Wi-Fi card PCI card. Or you know based. We TV cable that connects to your antenna and out these used to be a nightmare because he's to seem to be sort of the FCC would require that each different. Wi-Fi company had eight different connector and the idea was you were gonna prevents. Antennas from company. FCC wants only -- combinations. What seems to have happen in terms of the stuff going to find most often in retail make your from the sort of the Linksys. If you're almost always can find estimate connectors. All the stuff like these antennas we're playing around -- estimate connectors. And this is a fabulous gold plated -- connector very stylish. And estimate connectors are actually. Sort of this kind of becoming the standard for lot of stuff."

" You ask castles girl on the sound like you and -- be NC connector sentinels kernel -- small exactly if you start ordering. And Tennessee carved from separate locations you start mail ordering stuff. Really want to pay attention this because you know for example. Can our fabulous you know nine decimal and -- has a big -- and the connector on bottom and then. This is and then connectors these are actually pretty defined get a well stock electronic shop in your area or ham radio shop. Yeah so they feel like you're trying to get from it you know and and and female to -- and help plug an MC card plug which is little tiny things very common for a lot of the PC cards out there. You're gonna you're pig -- and depth that we're gonna put some links to the website to identify what these connectors RC what they look like and do yourself a favor. Paid money to violence to twelve blocks. You know soldering these things is -- nightmare. Assuming you can even solder them some of them Oracle actually have to cram -- that's a whole other crimes such have to worry about. And you're gonna -- ones who. And why spend a lot of money on crimping tools -- use again. So what do these stupid you know rather than immediately be calling for the Oakland hills we decided we short range Wi-Fi just off the roof of the Revision 3 headquarters which was fund which was fun. And we actually it's a pretty good results but we learned some interesting stuff it was about a mile sheet. You know and and we've got -- got some footage of that basically see out the window. And we -- a couple things one. The strength of your connection. If you look at is is you know. When you use like the hockey cards pretty cool because it gives you a little wireless utility that measures your signal strength for. And that's one of the really thing is something really obvious -- to show the stronger signal is. The higher your through puts Kennedy. Sounds pretty obvious right let your connection is. The faster the possible data throughput is okay -- will basically you need a lot of bandwidth to all your packets across our -- so we waited to thirteen dvi antenna we had a pretty amazing -- Browsing was super fast -- were affected the we are connected to the test network at work. Jeff we certainly would never expose the corporate network to you by outside forces never. We should play that if if you're a corporate environment and you're not like he don't ever at a wireless access point that system or an antenna and out of your T department. Because is something really embarrassing about overcoming hundreds of thousands or millions of dollars of hype and security technology by plugging the wireless access point into a desktop. Ethernet Jack -- Basil -- card. If you're fifty dollar you know Linksys routers may be great if you can finally use your notebook wirelessly in the conference room -- you're gonna feel pretty pathetic and ends up being the whole someone uses a routing your corporate network. Getting back to the wireless utility goes basically unit we hit a button on this wonderful site surveys but a lot of people use. -- Mac four or the ever popular. That's -- And what that allows you do is put the single -- the various Wi-Fi access points around you. The signal strength almost --"

" would from a want to say thirtieth 35 dvi all of our nine dvi antenna. Between that and and the directional antenna. With the directional antenna almost sixty to 65 dvi wow so that's a B that's a UBU jump in terms of decimals. And okay that's nice of the signals are stronger -- or reduce bandwidth tests and looking at the ping times. Between the two directional antennas are ping times -- 55 milliseconds and are milliseconds right. Using a directional antenna one and bigger numbers are bad -- times they've we're about a 120 seconds two to 300 milliseconds for the occasional gust alike. You know twelve honorable seconds or yeah the -- a -- and what it what it basically. Pages started to load slower and -- video sort of become unusable. So we -- bandwidth tests across that we loaded up by the classic CNET bandwidth tests and -- meters test. And with a few directional antennas we're getting 11 point four mega bits between the two antennas. Good number which is great number using our nine TV antenna with our sort of thirty DB signal strength. We were looking at something closer to 200 to 400. Kill bits per second which is a huge drop right so the stronger the connection between your two points the higher the maximum -- puts Kennedy. Okay okay so that's a good thing. You know it may not be a big deal if you've got through 750. You know kill bit per second -- DSL connection in your house but if say. You wanna be able to back up you know remote computers around your house to a centralized hard drive or network access storage. Getting stronger faster signal stronger signals -- make for much much faster throughput which means that time it takes to do in being a movie can't cross network is going to be. Much lower."

" Okay well how are talking not signal small stuff we've Nino talk about kind of test their -- and run with it takes to kind of make sure everything benefits together."

" Yeah old -- you know rather than going up on the hill with the with the antenna it was interesting -- of you know we got this one mile connection from -- so I'm stoked. Packed up the truck and hauled off into the fog in the hills above Oakland. So it was an interesting at that point we've got our line of sight if you basically depicting the hilltop with a road on it. We see outside the -- I can barely see you in the distance friends approximately where you said you were. Yeah. If you get anti conservatism -- the friend calls on the frontal zone is the ideas of the area. Because the signal isn't really you don't really have. You know wireless connection and since there's not sort of a street line of zeros and ones going between point -- to point B and there's kind of an elliptical shape that you want clear in between those two antennas. So if I'm looking at a one mile connection and."

" I one's about the seven meter article the first friends rules on radius. There's about 21 feet about seven meters I went clear around that how can you know if you do a couple hundred yards 500 yards going through some trees it's not too bad. If you've got buildings in between you that's bad but you."

" Don't anymore own side of -- you've got out like 21 feet off the -- unbelievable if you know we're don't think yeah well it's really if if -- a few hundred yards like you know we're doing a mile mile wasn't you that right. -- you're going twelve miles that that friend rules on radius for the idea of these sort of idealized clear area around your. Point to point connection. Is going to go up to you point five meters. That's a huge difference. -- he's your friend you're trying to make a long distance Wi-Fi connection. You know do you access to the water tower in the middle of town that's like fifty feet above everybody there -- building that's also. Okay yeah and it doesn't quite so you know it doesn't really you know remember you telling -- of the five. Yeah and via my antenna announce it yet."

" Isn't it kind of goes like this over distance. Right -- the halfway point between you know if my antennas -- mile apart. That's 21 -- going to be sort of at the halfway point in between us and that's just up and also left and right to vote basically you know I think about our legal circles. You know. With your sort of theoretical. You know connection in between that. For -- want like 21 feet for twelve miles it goes up to like eighty feet just like a giant football in the middle here exact okay. So you know. You can budget that the basically the closest to me that completely unobstructed connection in or or or spacing between those two antennas better it's gonna go up and multi maddening and tennis. If you're using couple of omni directional antenna and you really -- think of them as radiating. You know sort of is figure basically yes they. They circled the comes out of that senator of that antenna. And you once you know if you think of your big giant circle pipe play whatever it is you want intent is to be at the same height. And you want them to be perpendicular to each other so if if this is told to like this. You're gonna -- you're gonna basically the lower the quality your signal. If it's down here -- lower quality your signal so ideally you want these antennas to be at the same height. And basically you know you're on your level home exactly okay -- that that can actually make you a few degrees you know to make a pretty huge difference. Stuff and or just inside every degree just Apple iPod problem. Well when you start getting really like you know if you're if you're gonna back -- between two distant buildings. You know you start end up how you point the antennas you know if if you're five regards from each other it's pretty easy to sit there you know. I've got my calculator here and I'm gonna run stand in a minute tools -- couple degrees must canceled -- reason when a stand. And you know or basically watch the meter is a move it and you it's pretty easy to sort of seeing those two up right because we've you know you we went up warm line between dead center those antennas when perpendicular to each other you know with a little played antennas. We don't use them over miles. It's really hard to do this calculators you can use online."

" We put the latitude and longitude appoint any latitude wants to point B it'll basically telling you the compass -- need to take to properly and that antenna right. Which isn't gonna help you with kidding. You know sort of the the other direction from. What's those apply. The really interesting one system performance we federally calculator radio labs dot com and it's basically what type out there and it's a series a collection of really useful tools. From everything from converting a lot to decimals. And here's the fabulous friend goes -- calculator. Free space lost it's an idea how much you know power you're gonna lose. Despite you know floating through the air protecting your power output of the one it that I found really useful. Was system performance so. And this is -- realized we were never gonna gets. This card. And this antenna. To connect over twelve months got hit okay and here's why so we've got the frequencies that are in there that's when front of alerts to put a 400 megahertz. And if our distances one mile. We've got -- atx power to seventeen TV on this card presented in about 32 Goliaths. For arguments sake we're gonna pretend -- cable. Absorbs no power in the thirteen display antenna. And right there this is the one that it -- realize the -- the card is really crucial. Because a lot of cards -- around. They denied he'd be our cards are closer of the sensitivity negative seven indeed be again are receiving antenna that's the thirteen. He intended it's but the cable zero. Thirteen for the antenna. And we're gonna -- calculator. And tip theoretical margin. I around for a really strong like ten megabit per second connection going to look at some are twenty DB theoretical margin and that's the difference between your transmitting strength to receiving strength. Minus. The amount of power is gonna be absorbed. In your free air space are basically you know they air the ether when and when it calls -- the -- looks well and -- If -- pick that up from one mile twelve -- that you know. Usable and optically great margin of -- point eight decimals. Goes negative twelve points and five yes it's. So you start thinking like all right all right I'm gonna I'm gonna I'm a -- know what amplifier agenda that itself about five or -- us."

" And one man and more calculated again you know what it's only gotten up to it you point 76 basically name to quantum physics on still well below. And so what ten people of usable like 20/20 three people below ideal. So let's run that again but. Instead of upping the using an amplifier let's take a look at the idea of using a more sensible car from time you know nine B and even ninety -- is not too hard to find out there. So we're here to you. Sensitivity that's -- of the -- feels that he dies you just. Welcome -- there. And power know lots will be seventeen B -- DDB about thirty to know lots. And we're gonna go up to that thirteen DV antenna. You know basically if you vote like thirty. Calculate that people. Continuation but this case crypto community zero. And we had in the distance."

" Well morals. And of that together for six point 25 -- so and Kerio we were able to get one mile with -- exit activities. And two movies if we just walk just look cheap thirty dollar card applicant or no cost something like that it becomes marginal it twelve miles. And it becomes pretty -- it you know three to five miles. So five miles just while not the cards five times better these literally. You know. Amanda must have it."

" Exactly we have a ton of links Obama website we can just get this out in terms of what you should be looking now we've got links to the calculators -- at least a pig tails. I how to calculate your cabling. And if you want if you want to run sixty B cable to the reviewer counselors you know every corner of your neighborhood as Wi-Fi you think you're there remember though. It's gonna work better line of sight. Buildings especially if you're -- steel frame buildings for buildings are gonna stop the single fastest followed by you know. Regular balloon frame -- construction followed by a you know. Late trees heavy -- stop it whenever possible you want to have you know line of sight so basically -- he's your friend when you're going over long distances that's. So that's what everything you think of that I have learned in the last week."

" tell everyone the -- resilient system around a little bit we're monster yeah we're going from biweekly weekly now we're weekly. It's a big challenge for us we're all Oscar around the policy stuff and get them all together and fast fast. Which is great. We're also in the middle of a built in modern facilities and are content which is a pretty exciting for you -- up your."

" Eyeballs in tools and keyboard and switching systems and an amazing collection of cameras and tripod and heads the UPS guy hates -- right now. Yeah a lot of vendors that love you speak at put one guy to college in here that's the scary content -- But I am doing and we're McCracken amount of the next few months themselves are we can get. So do us a favor -- get a chance to get prodded speakers about questions about project you'd work on stuff like this is playing around -- Emails that system ass play -- PM at revision3.com. We're gonna put that link up on. The website web site's changed a little bit we actually have -- the the ability to embed videos. It's -- Yeah embed video so if you have a website or blog when basically issue a short video off your friend just a favorite you would get the embed -- available. Is the directions for creating one of those sort of like 25 cent DIY parabolic reflectors for your your wireless routers might remember seeing that form -- somebody -- it turned out really well it's it's amazing like what you know fifteen minutes of work with a pair of scissors and some aluminum -- can do for the reception of your view of your -- inside your home. That you're not gonna be connecting five miles with aluminum foil to connect three bedrooms exactly he had the if you aren't that far -- your house doesn't work we can fix that. He didn't. So yeah and some time. Yeah I mean a kid come in the not too distant future but sometime maybe this fall. We go for -- we can do we need some real high power antennas im gonna see what we can do for really sensitive. Wi-Fi cards received can do that twelve mile connection and then to be like a hundred mile connection. So there's a favorite you big ones is what -- complete waste of Wi-Fi in the last -- is doing someone through the wilderness for the giant twelve foot antenna. Fetus in the balance and save -- a pain and trauma and and a giant waste of aluminum foil forms the first thing you want to see us do some listening malinois. System that's less -- He added after we got kind of a system that's less PM at revision3.com. It's been fun hope you learned something had gotten questions and suggestions emulation -- to. It's an email I'm Patrick Norton I'm David Randolph have a great week."

" Welcome Revision 3 episode 68 up Patrick Norton I'm -- runoff election would test it permanently tirelessly failure episode right attempt to create a twelve mile Wi-Fi connection between point they except this to a point beat the Oakland hills and fail. Mightily. The Japanese took a long ago that an announcement yet and we learned a lot the process well that's what we're that I mean you get a lot of research on this I mean you were just through search and -- pages and books and everything like that. -- other guys like you know we got some directional antennas were really strong. You know traditionally a system we basically pull the other some aluminum foil and duct -- it only divert me -- antennas. But the turn his wife find it all we needed to capture -- and every modified some light stands for use -- Wi-Fi antennas and notice the careful use of staffers tapes of not to damage the incredibly expensive light stand for variety this. But I -- grass. The point is those that that Wi-Fi antennas for two point maybe you want if you even putting her CompUSA are big box store and find name brand. Six in ten Extenders for for base stations hawking is everywhere a lot of antennas and some of -- pretty high quality -- online. There is an amazing array of vendors selling high quality especially directional antennas that are very cheap it's. Hyper link technology or personal favor the giving up like 24 DBI parabolic antennas. Nothing wrong with it some copper and a soldering -- and closed wire and somebody's old directly he had to -- make your directional antenna you get a nice 20/20 2040 bi directional antenna that way. But sometimes it's just easier it's like the credit card. So in short what are the three things that's gonna take part dependent. Build super long since most of three things we have to worry about the -- well it's an interesting and the you know I would've thought that the transmitter power. And the antenna and it and how strongly receivers are actually sensitive receiver in the Wi-Fi cards right and I would've thought -- would have been 123. The reality though if you look at the biggest increases in the distance you can cover. The reserve the sensitivity of the receiver which can be buried in the -- he's talking cars about seventy DB for these say HWG one's. For the classic. Don't mind mechanical Hornets will be gone personal like my motorcycle until later something that's -- it can -- can't act out of it you cycle -- cards for me to -- around three -- again that's a style of motorcycle or racing. The interesting thing we found that if you sort of player has asserted in keeping this is. Right to start the one mile connection worked quarry we try to -- twelve miles for the connection. Failed miserably got basically a mobile atop the hill on trying to connect to this system secret layer in San Francisco and pick it up. Two or three other San Cisco hotspots but I cannot pick -- system. So then we started basically pour online calculators and learned three things one the sensitivity of your cards is the most important thing. When try to do long distance connection so if we're gonna spend 500 dollars or Montana resident hundred dollars on wireless card. Exactly because what happens if you know they they HWG ones these are great purple -- connection these were great we did a pretty good job. Especially with the directional antennas. However there are only seven need to be sensitive if we take that to a car like in the classic or no go war driving -- now sold my approximate. They're ninety youth sensitive. And if we're gonna run account clear couple's second what you see is that you know increasingly sensitive this car has a dramatic effect on the kind of range you can get. After that the most dramatic impact them on the range is the antenna using it both -- now for local if you're trying to cover like. I can't this an office your house. You can view a lot of amazing stuff with a small omni directional antenna. Or actually something we've played around we've we've talked about and of early show was basically -- aluminum foil and cardboard. And you're doing that the simple to use take aluminum foil I glue it to a file Fuller and then put it in a ninety degree sheep. Behind your hot spot. I don't tutorial minds is how proud cuts and and all the CDs glued together let's yeah well I've actually moves really strange is taxable pulling through it. Somebody took let's say when -- did on making those homemade current politics on deal TV posted it on of YouTube small place like a 100000 people look at classical like what days. So apparently a lot of people are pissed off about Wi-Fi reception. What is -- you -- I'm thinking it's gotta be the Wi-Fi. You I'm just not that pretty good. What's amazing -- right just playing around like you know fifteen cents worth of aluminum foil. Cardboard and you know glue can make it dramatic difference you have a house where you are you Wi-Fi. You know you're Wi-Fi. You're. Brouder don't -- your wireless access points and one quarter we have trouble a far corner of the house. To the you can do to improve the reception. Moving to the middle of the house or you don't make one of these cheap homemade. Parabolic reflectors and concentrate the signal so it's going you know to the far corner -- your house so it's not radiating 362. -- type fast promises to collect data possibly. That costs about twenty bucks to about twenty bucks and the overly complicated inside the facts."

" Well you -- right it's basically piece of wire but it's a very carefully tuned piece of wire act we can spend. You know we can do it in 88 hour day system for a week and and fairly cover. The complications of calculating something like this and this is supposed to get ten dvi efficient antenna it's selling for about ten bucks this does a pretty good job. Basically. You know. What it does is in theory right if we get into that magic physics Lan. You know where everything works like there's no atmosphere no electromagnetic fear instant and in all that good stuff the idea of a typical antennas going to radiate equally in all directions all look points. In you know sort of 360 degrees that is sort of Brady happens spear. We can do on the directional antenna write these as he ought to be be 3-D B five BB seven dvd nine DB can easily have twelve GB and what that essentially does is instead of Reading down -- up. It's sort of squishy is the single pattern of the antenna and turns it is sort of a giant doughnut. Right in his as the strength goes up. The -- this of the -- goes down or its its -- basically. You get you get less -- so this -- covering twelve stories of the building the five stories of ability to two stories of the building. But it goes from covering like the room to the city block to the half mile around the city block."

" I -- from basketball to an interview Brett kind of ratio wise thing kind cut costs that."

" Yeah or you know if you're sitting at the fifty yard line and a football stadium. Right you may get like you know a nice fifty yard radius around your Wi-Fi hotspots. Right and if you put it on TV antenna meeting goes up 200 yards. But suddenly the people in -- in. Rose thirty through fifty can't do it. And and you get it down to you know like attend dvi and had -- suddenly people are getting out a parking lot you know. -- in the concrete of the stadium don't think this is concrete and brick and steel and stone. And building materials in general stop Wi-Fi Wi-Fi the very line of sight kind of thing. But you know you're gonna yearling and be like. You know a couple stories off the ground. You know if you're -- war driving viewed in your life on either seven dvi antenna and I'm gonna pick up everything will appear in Nebraska and it's flat. The seven dvi and is great if you're gonna be reaching out hundreds of yards miles into the distance. If you're -- city. It's almost useless because you're only gonna be getting -- reception it was seven dvi antenna in the city you get maybe the top three -- force floors of the building. It may be 25 stories of the building if you go to three dvi antenna you're not reaching the the next block her you know halfway into the next office building. But you are reaching -- to the tenth or twelfth floor of the buildings that are around. So. He's also -- like this is great when things we found that is that not all antennas no matter what they're rated as are equal you know if we look at this. -- in -- another omni directional antenna over here. Does the whole another hawking antennas that's available pretty commonly computers sources at -- TV antenna. When we started doing that shoot off of those the rooftop in the back of the -- three offices. We really get a pretty good connection off of this. With you know this is a ten dvi Nintendo basically put him in the same spot the ten dvi antenna wasn't able to get a consistent connection. -- you now. I'm willing infineon and when you connect you have the nine TV antenna. Actually this night TV antenna was pretty effective which is to say. Sometimes. Tend TV doesn't be -- dvd quality V antenna or the size of the antenna in designing the antenna. You know -- alive affects a lot so you know. Twenty dollars great for your house hundred dollars is great for him is basically designed to be installed outside working it's a pretty hardcore coverage inside an office building."

" I think you're outside you don't tell -- how are you gonna do of one of these little suckers all the time yeah. So what is that and -- we have my mouse appointments. Well if you're thinking about running cable. What have a little lightning strikes you're building. -- that I find ground whenever can't name what part of your -- just lightning strike usually it usually wherever you know -- can't happen."

" And so the higher it is more likely it is to be struck friends. So unless you want to be sitting at your computer one -- in a thunderstorm instantly find yourself feeling the effects of whitening. Basically to ground connector installed. General it's gonna be. You know you're gonna have your cable running your antenna somewhere near the outside the base of the building you're gonna drive and a big spike -- your gonna pick up from your local you know Home Depot -- store. You're not comfortable electron if you're comfortable electricity I highly recommend -- hiring a professional to do this. Because you know what it sounds simple you try to piece of metal into the ground you're on the wire from metal to this. This is connected to your cable in the ideas that the electrical his head of the white paint. Goes from the sky ATV antenna to the ground point outside your house rather than running your computer your fingertips are blowing your monitor routers or anything else. You -- you're not comfortable with doing electrical work. Pay the money to have professional yeah the big hills who rely generally connect. Some sort of wireless device whether it's a browser or a Wi-Fi card PCI card. Or you know based. We TV cable that connects to your antenna and out these used to be a nightmare because he's to seem to be sort of the FCC would require that each different. Wi-Fi company had eight different connector and the idea was you were gonna prevents. Antennas from company. FCC wants only -- combinations. What seems to have happen in terms of the stuff going to find most often in retail make your from the sort of the Linksys. If you're almost always can find estimate connectors. All the stuff like these antennas we're playing around -- estimate connectors. And this is a fabulous gold plated -- connector very stylish. And estimate connectors are actually. Sort of this kind of becoming the standard for lot of stuff."

" You ask castles girl on the sound like you and -- be NC connector sentinels kernel -- small exactly if you start ordering. And Tennessee carved from separate locations you start mail ordering stuff. Really want to pay attention this because you know for example. Can our fabulous you know nine decimal and -- has a big -- and the connector on bottom and then. This is and then connectors these are actually pretty defined get a well stock electronic shop in your area or ham radio shop. Yeah so they feel like you're trying to get from it you know and and and female to -- and help plug an MC card plug which is little tiny things very common for a lot of the PC cards out there. You're gonna you're pig -- and depth that we're gonna put some links to the website to identify what these connectors RC what they look like and do yourself a favor. Paid money to violence to twelve blocks. You know soldering these things is -- nightmare. Assuming you can even solder them some of them Oracle actually have to cram -- that's a whole other crimes such have to worry about. And you're gonna -- ones who. And why spend a lot of money on crimping tools -- use again. So what do these stupid you know rather than immediately be calling for the Oakland hills we decided we short range Wi-Fi just off the roof of the Revision 3 headquarters which was fund which was fun. And we actually it's a pretty good results but we learned some interesting stuff it was about a mile sheet. You know and and we've got -- got some footage of that basically see out the window. And we -- a couple things one. The strength of your connection. If you look at is is you know. When you use like the hockey cards pretty cool because it gives you a little wireless utility that measures your signal strength for. And that's one of the really thing is something really obvious -- to show the stronger signal is. The higher your through puts Kennedy. Sounds pretty obvious right let your connection is. The faster the possible data throughput is okay -- will basically you need a lot of bandwidth to all your packets across our -- so we waited to thirteen dvi antenna we had a pretty amazing -- Browsing was super fast -- were affected the we are connected to the test network at work. Jeff we certainly would never expose the corporate network to you by outside forces never. We should play that if if you're a corporate environment and you're not like he don't ever at a wireless access point that system or an antenna and out of your T department. Because is something really embarrassing about overcoming hundreds of thousands or millions of dollars of hype and security technology by plugging the wireless access point into a desktop. Ethernet Jack -- Basil -- card. If you're fifty dollar you know Linksys routers may be great if you can finally use your notebook wirelessly in the conference room -- you're gonna feel pretty pathetic and ends up being the whole someone uses a routing your corporate network. Getting back to the wireless utility goes basically unit we hit a button on this wonderful site surveys but a lot of people use. -- Mac four or the ever popular. That's -- And what that allows you do is put the single -- the various Wi-Fi access points around you. The signal strength almost --"

" would from a want to say thirtieth 35 dvi all of our nine dvi antenna. Between that and and the directional antenna. With the directional antenna almost sixty to 65 dvi wow so that's a B that's a UBU jump in terms of decimals. And okay that's nice of the signals are stronger -- or reduce bandwidth tests and looking at the ping times. Between the two directional antennas are ping times -- 55 milliseconds and are milliseconds right. Using a directional antenna one and bigger numbers are bad -- times they've we're about a 120 seconds two to 300 milliseconds for the occasional gust alike. You know twelve honorable seconds or yeah the -- a -- and what it what it basically. Pages started to load slower and -- video sort of become unusable. So we -- bandwidth tests across that we loaded up by the classic CNET bandwidth tests and -- meters test. And with a few directional antennas we're getting 11 point four mega bits between the two antennas. Good number which is great number using our nine TV antenna with our sort of thirty DB signal strength. We were looking at something closer to 200 to 400. Kill bits per second which is a huge drop right so the stronger the connection between your two points the higher the maximum -- puts Kennedy. Okay okay so that's a good thing. You know it may not be a big deal if you've got through 750. You know kill bit per second -- DSL connection in your house but if say. You wanna be able to back up you know remote computers around your house to a centralized hard drive or network access storage. Getting stronger faster signal stronger signals -- make for much much faster throughput which means that time it takes to do in being a movie can't cross network is going to be. Much lower."

" Okay well how are talking not signal small stuff we've Nino talk about kind of test their -- and run with it takes to kind of make sure everything benefits together."

" Yeah old -- you know rather than going up on the hill with the with the antenna it was interesting -- of you know we got this one mile connection from -- so I'm stoked. Packed up the truck and hauled off into the fog in the hills above Oakland. So it was an interesting at that point we've got our line of sight if you basically depicting the hilltop with a road on it. We see outside the -- I can barely see you in the distance friends approximately where you said you were. Yeah. If you get anti conservatism -- the friend calls on the frontal zone is the ideas of the area. Because the signal isn't really you don't really have. You know wireless connection and since there's not sort of a street line of zeros and ones going between point -- to point B and there's kind of an elliptical shape that you want clear in between those two antennas. So if I'm looking at a one mile connection and."

" I one's about the seven meter article the first friends rules on radius. There's about 21 feet about seven meters I went clear around that how can you know if you do a couple hundred yards 500 yards going through some trees it's not too bad. If you've got buildings in between you that's bad but you."

" Don't anymore own side of -- you've got out like 21 feet off the -- unbelievable if you know we're don't think yeah well it's really if if -- a few hundred yards like you know we're doing a mile mile wasn't you that right. -- you're going twelve miles that that friend rules on radius for the idea of these sort of idealized clear area around your. Point to point connection. Is going to go up to you point five meters. That's a huge difference. -- he's your friend you're trying to make a long distance Wi-Fi connection. You know do you access to the water tower in the middle of town that's like fifty feet above everybody there -- building that's also. Okay yeah and it doesn't quite so you know it doesn't really you know remember you telling -- of the five. Yeah and via my antenna announce it yet."

" Isn't it kind of goes like this over distance. Right -- the halfway point between you know if my antennas -- mile apart. That's 21 -- going to be sort of at the halfway point in between us and that's just up and also left and right to vote basically you know I think about our legal circles. You know. With your sort of theoretical. You know connection in between that. For -- want like 21 feet for twelve miles it goes up to like eighty feet just like a giant football in the middle here exact okay. So you know. You can budget that the basically the closest to me that completely unobstructed connection in or or or spacing between those two antennas better it's gonna go up and multi maddening and tennis. If you're using couple of omni directional antenna and you really -- think of them as radiating. You know sort of is figure basically yes they. They circled the comes out of that senator of that antenna. And you once you know if you think of your big giant circle pipe play whatever it is you want intent is to be at the same height. And you want them to be perpendicular to each other so if if this is told to like this. You're gonna -- you're gonna basically the lower the quality your signal. If it's down here -- lower quality your signal so ideally you want these antennas to be at the same height. And basically you know you're on your level home exactly okay -- that that can actually make you a few degrees you know to make a pretty huge difference. Stuff and or just inside every degree just Apple iPod problem. Well when you start getting really like you know if you're if you're gonna back -- between two distant buildings. You know you start end up how you point the antennas you know if if you're five regards from each other it's pretty easy to sit there you know. I've got my calculator here and I'm gonna run stand in a minute tools -- couple degrees must canceled -- reason when a stand. And you know or basically watch the meter is a move it and you it's pretty easy to sort of seeing those two up right because we've you know you we went up warm line between dead center those antennas when perpendicular to each other you know with a little played antennas. We don't use them over miles. It's really hard to do this calculators you can use online."

" We put the latitude and longitude appoint any latitude wants to point B it'll basically telling you the compass -- need to take to properly and that antenna right. Which isn't gonna help you with kidding. You know sort of the the other direction from. What's those apply. The really interesting one system performance we federally calculator radio labs dot com and it's basically what type out there and it's a series a collection of really useful tools. From everything from converting a lot to decimals. And here's the fabulous friend goes -- calculator. Free space lost it's an idea how much you know power you're gonna lose. Despite you know floating through the air protecting your power output of the one it that I found really useful. Was system performance so. And this is -- realized we were never gonna gets. This card. And this antenna. To connect over twelve months got hit okay and here's why so we've got the frequencies that are in there that's when front of alerts to put a 400 megahertz. And if our distances one mile. We've got -- atx power to seventeen TV on this card presented in about 32 Goliaths. For arguments sake we're gonna pretend -- cable. Absorbs no power in the thirteen display antenna. And right there this is the one that it -- realize the -- the card is really crucial. Because a lot of cards -- around. They denied he'd be our cards are closer of the sensitivity negative seven indeed be again are receiving antenna that's the thirteen. He intended it's but the cable zero. Thirteen for the antenna. And we're gonna -- calculator. And tip theoretical margin. I around for a really strong like ten megabit per second connection going to look at some are twenty DB theoretical margin and that's the difference between your transmitting strength to receiving strength. Minus. The amount of power is gonna be absorbed. In your free air space are basically you know they air the ether when and when it calls -- the -- looks well and -- If -- pick that up from one mile twelve -- that you know. Usable and optically great margin of -- point eight decimals. Goes negative twelve points and five yes it's. So you start thinking like all right all right I'm gonna I'm gonna I'm a -- know what amplifier agenda that itself about five or -- us."

" And one man and more calculated again you know what it's only gotten up to it you point 76 basically name to quantum physics on still well below. And so what ten people of usable like 20/20 three people below ideal. So let's run that again but. Instead of upping the using an amplifier let's take a look at the idea of using a more sensible car from time you know nine B and even ninety -- is not too hard to find out there. So we're here to you. Sensitivity that's -- of the -- feels that he dies you just. Welcome -- there. And power know lots will be seventeen B -- DDB about thirty to know lots. And we're gonna go up to that thirteen DV antenna. You know basically if you vote like thirty. Calculate that people. Continuation but this case crypto community zero. And we had in the distance."

" Well morals. And of that together for six point 25 -- so and Kerio we were able to get one mile with -- exit activities. And two movies if we just walk just look cheap thirty dollar card applicant or no cost something like that it becomes marginal it twelve miles. And it becomes pretty -- it you know three to five miles. So five miles just while not the cards five times better these literally. You know. Amanda must have it."

" Exactly we have a ton of links Obama website we can just get this out in terms of what you should be looking now we've got links to the calculators -- at least a pig tails. I how to calculate your cabling. And if you want if you want to run sixty B cable to the reviewer counselors you know every corner of your neighborhood as Wi-Fi you think you're there remember though. It's gonna work better line of sight. Buildings especially if you're -- steel frame buildings for buildings are gonna stop the single fastest followed by you know. Regular balloon frame -- construction followed by a you know. Late trees heavy -- stop it whenever possible you want to have you know line of sight so basically -- he's your friend when you're going over long distances that's. So that's what everything you think of that I have learned in the last week."

" tell everyone the -- resilient system around a little bit we're monster yeah we're going from biweekly weekly now we're weekly. It's a big challenge for us we're all Oscar around the policy stuff and get them all together and fast fast. Which is great. We're also in the middle of a built in modern facilities and are content which is a pretty exciting for you -- up your."

" Eyeballs in tools and keyboard and switching systems and an amazing collection of cameras and tripod and heads the UPS guy hates -- right now. Yeah a lot of vendors that love you speak at put one guy to college in here that's the scary content -- But I am doing and we're McCracken amount of the next few months themselves are we can get. So do us a favor -- get a chance to get prodded speakers about questions about project you'd work on stuff like this is playing around -- Emails that system ass play -- PM at revision3.com. We're gonna put that link up on. The website web site's changed a little bit we actually have -- the the ability to embed videos. It's -- Yeah embed video so if you have a website or blog when basically issue a short video off your friend just a favorite you would get the embed -- available. Is the directions for creating one of those sort of like 25 cent DIY parabolic reflectors for your your wireless routers might remember seeing that form -- somebody -- it turned out really well it's it's amazing like what you know fifteen minutes of work with a pair of scissors and some aluminum -- can do for the reception of your view of your -- inside your home. That you're not gonna be connecting five miles with aluminum foil to connect three bedrooms exactly he had the if you aren't that far -- your house doesn't work we can fix that. He didn't. So yeah and some time. Yeah I mean a kid come in the not too distant future but sometime maybe this fall. We go for -- we can do we need some real high power antennas im gonna see what we can do for really sensitive. Wi-Fi cards received can do that twelve mile connection and then to be like a hundred mile connection. So there's a favorite you big ones is what -- complete waste of Wi-Fi in the last -- is doing someone through the wilderness for the giant twelve foot antenna. Fetus in the balance and save -- a pain and trauma and and a giant waste of aluminum foil forms the first thing you want to see us do some listening malinois. System that's less -- He added after we got kind of a system that's less PM at revision3.com. It's been fun hope you learned something had gotten questions and suggestions emulation -- to. It's an email I'm Patrick Norton I'm David Randolph have a great week."