12 KILOMETER Wi-Fi - SUCCESS!!!
Linus Tech Tips
·Linus Tech Tips
·2019-05-06
·
3,710 words · ~18 min read
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this dish is so that we can send a wi-fi signal
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10 kilometers away to alex and brandon over at the sfu surrey campus now we've
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actually played around with ubiquity's dish-based long-range wi-fi before but
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i did not set it up properly so while we did manage to send a wi-fi signal across
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our parking lot which was further than we would have been able to do with a
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conventional router that wasn't that impressive
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but that all changes today mike from ubiquity is back and he's going to be
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showing us how to do it properly
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looking for an affordable and reliable vpn private internet access encrypts
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your internet traffic and uses a safe protected ip check it out today at the
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link below so brandon and alex should be in this
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parking lot right here so as long as there's no tree
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branches or decorative log things in the way of that
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hopefully we'll get a signal uh so are you guys set up right now
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uh like sort of i've i'm like 90 done
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setting up the camera okay you called what's up has alex started building
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dishes or anything yet he started building one of them yeah okay
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yeah go ahead put it back in the car um we're not going to use it don't build
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the small one alex that one should be fine for this project
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but because of all the mist in the air we actually changed gears a little bit
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and instead we're going to use the rocket ac
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gen 2. uh you've got chain one and chain zero which are your vertical and your
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horizontal these are connected to the antenna right here
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we've got some indicator leds that are you can actually use to see in real time
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like if you're pointed the right way though don't worry there's more precise
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ways to do that and then you've also got an additional antenna spot here for gps
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uh all that's left on here on the front is this dish you want to make sure this
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doesn't get dented or anything like that that'll change the shape of the signal
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and then what was this one called again a feed horn
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that's where you feed it hello it's alex how are you guys doing so far how close
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are you guys we're all set up um we have the
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stand mostly built and we're about at
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the stage of attaching the satellite to the stand
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okay do you know how to power it not a clue okay well you guys should have a
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big battery yeah it's charging right now it wasn't
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charged yeah mostly decharged over the weekend
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uh cool well why don't you guys finish up what you're doing and we'll get ours
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powered up in the meantime and then we'll be able to walk you through what to do all right
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boom pull so we're like pretty much we're very
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close to being done now also my hands are freezing
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i feel like that having a red camera just makes you more official and nobody
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questions if you're allowed to be there
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um
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now we might be getting kicked off because
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where we need to sit to connect between the two campuses
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isn't technically campus property so although we do have permission to park
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we might not have permission to
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build a wi-fi antenna so where are we aiming exactly
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kind of to the right of the tall tree can somebody point at the tree the the
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tall tree can you can you look at the tall tree
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max there's two so
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who's kicking you out the mall security
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the car park that we're on is technically the shopping centers so
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yeah we don't have permission to work here oh okay
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the great thing is like right after we filmed the intro today i was like wow everything's going so
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smoothly but through the fog of war i couldn't see
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it's just fun so we got completely kicked out of the
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parking lot which would be bad except now we're inside
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where it's warm which is nice and we might have through that great big
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window behind me a direct line of sight to the burnaby campus i'm not entirely
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sure but we'll be able to find out it's our best bet at the moment and we're warm
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which is great so so theoretically all they have to do is fire it up
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set it to our ssid and then configure
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their antenna and we should be able to start dialing them in
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assuming we have actual line of sight which we can't verify until we do that
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so this is approximately what we want right
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we can't even see those trees anymore that's crazy like how much [ __ ] in the
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[ __ ] holy crap so if we're firing like you know 10 city
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blocks away we're not getting any saint karby
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it's gonna be challenging for sure at least i have this handy tripod to
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support me as i go through this
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so you guys are powered up now yep okay do you have a laptop plugged into
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the other Ethernet port um what is other Ethernet port
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um i'm sending you a picture
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okay please tell me you guys have two Ethernet cables
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yep i got it and we do have two Ethernet cables oh yep this makes way more sense
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now okay good
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and then i'll walk you through some um some ip stuff all right
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okay so three 192.168.1.6
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um it says this site can't be reached uh no no no you're supposed to change
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your laptop's ip address to that manually
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oh okay now you should just go into a web
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browser and type in 192.168.1.20
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okay so now you guys have to do your darndest
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through the fog to point at sfu burnaby
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do you know roughly like what heading i should be pointing at or anything
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i don't know the idea was that we were going to have like binoculars and we were just going
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to kind of look at each other and that is clearly not going to be a thing okay
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go to the settings
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under control frequency scan list change it to on and type in 5300.
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um i probably underestimated how far off
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north you guys need to be looking it's like probably 40 degrees off
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yeah and looking at where you guys are looking out of that building i don't see
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how we're gonna get a link also if this doesn't work we have permission to go
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back up onto the parking lot oh really
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so we're back outside hopefully it doesn't rain again
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at least now we kind of know where we're supposed to point it's sort of like that
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way by where that great big crane is i think those also are pictures that were
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taken like a year ago so
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who knows if we can't hit the parking lot when they get out there one of our staff
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actually has a place that is almost exactly due south of here which means we
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would basically just align ourselves with the window and
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point straight out of it if we have a line of sight to him
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oh we are set back up again you're set up okay fantastic
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yeah sorry we're exploring other options
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since otherwise we were just kind of sitting here being useless while you guys did all the work and uh we were
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thinking tyler's house might actually make sense i don't know
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if you've been there before oh yes i have
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well either way it's going to be tight like in terms of trees and stuff
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but yeah tyler's place may actually be a decent bet okay team b
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is heading to a new location on the roof of
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one of our staff's houses
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we think that it's going to be a little bit easier to hit because it's almost
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directly due south of here so it's a bit easier to eyeball
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also there isn't a new building that went up since we scouted the locations
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how are you guys doing up there um pretty good we had some food
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uh no there's like kind of a sunset actually
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the sun just sets so we don't really have great light anymore but it was pretty fantastic right before we started
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filming yeah our lighting was great all day and now we're just using like an led
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lamp on the camera so this video
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at the very least is gonna look
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like garbage at the end like i feel like garbage so the video might as well like
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really just bring it home great here actually
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um kind of like the middle right corner
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middle right what's the right corner okay yeah that's a horrible descriptor
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um like the north corner can you see the building
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kind of to the right of that one with the red on it right
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what so there's like a white box on the top of it i think
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okay i see it so basically do you see that white box
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shoot at the mountain above that wait no hold on let me double check um
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because i actually might not have put our our pin on the exact window that
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we're at no i didn't hold on one second let me just correct that all right this
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is such a stupid way to do this i can't think of a better way so
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okay just make sure i have that mark in the right spot because even a couple of
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degrees like if we can get you guys locked in then we can just adjust until we hit you
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i'm trying to get the height right now
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which is kind of hard to do because we're supposed to do like two degrees
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but this is very far from level
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it's all like this so i think it would maybe like five degrees is good
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but you've got it to two degrees ish
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yeah ish because this whole roof is like
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what a pain
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i have such a headache right now
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yeah at least it's not raining now yeah that's
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good so if i just like if i just like scan past like kind of fast do you guys
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see a blip nothing like not a thing there wasn't even like
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maybe noise out there yeah nothing at all um yeah not a thing
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all right i think it's time to call it guys thanks everyone good work today
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well i mean the kind of work that's good but like doesn't achieve anything
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okay so it's been a few months and
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we are back at it again this time there's a bit of wind to toss my hair
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i've got binoculars they're not
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great binoculars i've got a rooftop
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and i've got a clear shot to maple ridge
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now we already realized that we don't have a pole for our
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stand here that seems to have gotten lost at some point but the good news is
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i'm on my parents rooftop and the odds of them having a random pole sitting
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around somewhere very good
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here's one did not stage that
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that one doesn't fit
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i can smell success
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um
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that looks pretty uh um
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pretty almost ready to be called steady this wasn't tight so it's like that way
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ish or like over there we're not totally sure all right
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we are pulled
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oh almost
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ed should have really brought a compass
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hello hey hey there buddy okay so
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i have the satellite dish hooked up everything's powered on i can't get the
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setup to work on it uh yeah i think it's because we're reconfigured with
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different static ips and stuff so i think you might have to factory reset it
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so that's just when you push the little thingy in the thingy yeah the thingy in
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the thingy you'll need to find a small thingy
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i really wish mike was here because i'm looking at some of the tools and the
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thing and i don't even remember ever looking at this stuff
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yeah same okay i'm into the um spot where i need to log in okay cool
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ubnt ubnt u for up
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b for butt n for nut t for testicle
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i put that in for both of them yeah
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i don't know which of us is the um
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is the access point and which of us
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is the client and i think it matters
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man okay what antenna do you have set um
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rd 5g 30 30 dbi
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wait wait a minute wait a minute you just shared your location with me five
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minutes ago is that you like seconds ago yeah okay so the golden ears
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bridge is right behind you so you guys are in
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pit meadows uh okay so there's the golden ears bridge
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holy crap that's really far away how close are you guys to identifying
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where i am um very very
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not close we definitely should have had binoculars but
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if i was looking past you what would i see past you
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you're looking past me um
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the the river basically um we're like right beside the river
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there's a bunch of trees a bunch of trees not gonna do a lot for
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me if i go like way down on the shore i
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can see the golden years bridge
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okay now we're talking and what part of it is directly behind
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you see how it's got four sets of supports
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that's part of the problem right now i'm having a really hard time seeing the
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water because i think there's a lot of trees and crap along the shore and also
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the water's brown which definitely doesn't help yeah everything's brown at this distance
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because it's a like pretty clear day but it's not a perfectly clear day okay i
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know where you guys are what does your building look like okay so my building
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is the one with all of the like kind of blade looking
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uh things on the top of it
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you can't see that well okay why didn't you guys get binoculars do
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you want to take something like a mirror to have to bounce
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i feel like they're flying to us uh yeah i've got like a gigantic golden
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bounce all right do you want to start bouncing then i'm gonna start bouncing it baby
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like you guys are so far away man i don't know if there's any way you're
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gonna be able to see this but okay i'm i'm gold damn you see me yup i
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see you no way yes i can see it
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okay well that there you go that's where we are
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all right you need me to hold it up so that you guys can aim i think we're good
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now oh freaking hey i cannot believe that
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worked oh oh i'm so excited do we know how far we
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are uh how far are you i think it's about 12 kilometers it's like eight
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miles for the american viewers it's far
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okay cool you're on speaker because we're recording everything okay
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don't say anything incriminating you know
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uh okay so so how would they search for
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me just the alignment tool the alignment tool
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would be best to use yeah it'll make sounds depending on the signal that it
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detects so the align tool though should work now that i have set an access point
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frequency and they should be able to just see stuff yes it should help
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reporting i believe the alignment tool should give you kind of like a like you
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should give you a more better idea when you're getting close to something there's a toggle switch for audio though
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i think thank you i'll give you a call if we need any more help which will probably happen okay bye
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all right let's call alex back up
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hey okay so theoretically right now we are
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about as set up as we can be turn on the
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audio indicator okay it's on and now we just have to try
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and hit each other all right whoa whoa whoa whoa
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what why wasn't this coming up before i didn't even touch it we hit him i didn't
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even adjust it we're at uh current signal minus 80 decibels that is
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well within the threshold check this out brandon we got two bars baby okay that
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beeping is really friggin annoying i'm gonna turn that right off there now
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okay so should i have internet now
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uh no wait
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okay we should be able to share a file between our two computers at the very
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least ah
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okay so here we have it i can see
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alex's computer fu Linus folder that's very nice okay
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here we go this is it
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two megs a second dang
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so that's 20 megabit from here to 12 kilometers away under a
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bridge somewhere brandon don't die
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all right so uh do you guys want you know what why don't i do the fine tuning
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for now because you guys had something to to aim at exactly whereas i could be
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just kind of close-ish yeah okay so that just got worse are you guys looking at
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the indicator right now too yeah it just went down for me
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so i'm a little bit off to the left give me one second
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okay is that better now um it's not as good as before
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really i still have 74. oh wait hold on hold on hold on don't
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change anything yet okay not changing anything
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okay i'm at as good as i've seen yet
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so you can go ahead and you can try and adjust your height and or your whatever
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and let's see what we see all right i'm just gonna push it a very small amount 73 71
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72 okay i'm going to need to like put a box
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underneath the front leg of our thing
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fantastic i can't believe how aligned we were at the start based
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on how small the adjustments that i'm making are yeah we just did our vertical
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adjustment and that did that got us down to 71 so i think that i
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can't be any more aligned okay well you can try horizontal like let's just see
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what happens just play with it just a little bit
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oh wow that's much worse yeah this is like
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fractions of a degree okay so all that's left now is for me to
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play around with height then
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oh that's better for me that's better minus 67 yeah
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minus 65. i got four bars baby
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four bars come check it out oh damn we got four bars let me see if i can get a
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little bit more we're at what negative 61 damn okay
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should we do another speed test okay i'm ready to copy the bigger file
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dang 15 megs a second
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150 megabit wi-fi
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over 12 kilometers
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and it only took us
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six months to set up all right i think that's pretty much it
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gentlemen so all that's left to do now then is tear this down because
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we don't actually need to beam a network connection between the roof of my
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parents building and uh a park somewhere in pitt meadows
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but it was still cool to see this in action
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actually freaking working and i think it's probably got a lot of gears turning
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in your guys's heads in terms of how long-range wi-fi like this could be
20:45
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