1 00:00:00,000 --> 00:00:06,960 Hey MTV, welcome to my crib. Oh, I mean, sorry, prong video. Hey Flow Play, this is Jake here in the lab, and today 2 00:00:06,960 --> 00:00:13,640 I'm doing a deep dive on our new Raymond EMC supplied RF chamber. Raymond EMC, these guys huge shout out once again 3 00:00:13,920 --> 00:00:18,800 They provided this whole thing for us, and they were a huge help with getting some of the equipment that we need 4 00:00:19,200 --> 00:00:22,360 And getting everything started. So without further ado 5 00:00:24,240 --> 00:00:26,580 The most satisfying door in this place 6 00:00:27,340 --> 00:00:34,220 This is the Raymond EMC quiet door, and I know Linus showed this off before 7 00:00:34,580 --> 00:00:39,300 But this is a knife edge that goes into some brilliant copper finger stock 8 00:00:39,900 --> 00:00:43,700 And I've seen a lot of people asking questions around, you know 9 00:00:43,900 --> 00:00:52,860 What's the maintenance like on on this kind of thing? Especially because we reference that one of the screws is actually out of torque and that caused a leakage at 18 gigahertz 10 00:00:53,020 --> 00:00:55,980 So with this we actually have a duty cycle 11 00:00:57,140 --> 00:01:02,660 Every hundred times this door is open and closed. We've got to wipe all the contact surfaces around the outside 12 00:01:03,380 --> 00:01:08,380 Every thousand cycles we have to inspect and lubricate all the moving parts and every 5,000 cycles 13 00:01:08,380 --> 00:01:12,260 We actually have to polish all the contact surfaces and check the door alignment 14 00:01:12,900 --> 00:01:18,980 Raymond EMC is actually we coming back out to film a maintenance video for this that they'll have on their channel and 15 00:01:19,940 --> 00:01:24,500 To do this basically we use methyl spirits and a brillo pad. So it's nothing too crazy 16 00:01:24,980 --> 00:01:31,060 But it does present a bit of a challenge for Height challenged individuals like Linus to get up to the top of the door 17 00:01:31,340 --> 00:01:38,900 so Another thing that people have been asking is, you know, what are we doing with the electromagnetic interference and EMI off the cameras? 18 00:01:39,180 --> 00:01:44,660 Etc. And even the lighting so one thing we're not going to be filming the tests 19 00:01:44,780 --> 00:01:50,080 We will film recreations afterwards, but we're going to use the actual clean test data. So with the lighting 20 00:01:50,560 --> 00:01:57,160 EMI is actually a big consideration. Thankfully Constellation lighting down in the States. They make these link 21 00:01:57,800 --> 00:02:00,600 LED systems and these are mil spec 22 00:02:00,960 --> 00:02:05,960 So they're military standard 461g tested for zero EMI emission 23 00:02:06,400 --> 00:02:13,920 They're 65 watt 7,000 lumen and we can actually position on two axes so we can kind of adjust lighting in here 24 00:02:14,640 --> 00:02:18,520 That makes it a lot easier to see because when the lights are out and the doors close 25 00:02:19,520 --> 00:02:27,240 It doesn't work so well Over here, these are our negatives for our floor panels. They're actually 26 00:02:28,160 --> 00:02:33,880 Really stable. So we're gonna have our test set up over here. We're gonna be broadcasting on our fire cell 27 00:02:34,320 --> 00:02:37,520 Lab kit that's gonna send signal over in that direction 28 00:02:37,520 --> 00:02:43,760 And we're gonna have our device under test on a pedestal there. Ignore the big blue box. It will not exist and we're all ready 29 00:02:45,320 --> 00:02:50,000 effectively One of the considerations that we have when we're broadcasting 30 00:02:50,400 --> 00:02:56,720 RF is that we can't broadcast too close to the device under test and we can't broadcast it to a high of a power rating 31 00:02:57,080 --> 00:03:05,360 Mainly because you can actually burn out equipment that way So with the lab kit, we're gonna have it positioned about a meter off the wall 32 00:03:05,440 --> 00:03:13,440 And we're gonna have the device under test But the same and the reason for that is if your wavelength is too long so too low of a frequency 33 00:03:14,040 --> 00:03:16,840 If you're too close, it can cause weirdness 34 00:03:17,320 --> 00:03:22,040 They don't call RF black magic for nothing. So we're gonna have it positioned off the wall 35 00:03:22,040 --> 00:03:24,840 We're gonna have about three to four meters in between 36 00:03:25,240 --> 00:03:28,440 And then we'll be able to measure different transmission power levels 37 00:03:28,440 --> 00:03:33,440 I know for for your people Arjun, and I'm gonna say that 38 00:03:34,200 --> 00:03:36,200 in Australia 39 00:03:38,040 --> 00:03:42,840 In Australia these LTE band 28 which is 700 megahertz. It's a fairly low band 40 00:03:43,480 --> 00:03:47,000 And we've had a couple people ask if we're gonna include them testing 41 00:03:47,000 --> 00:03:51,920 I am gonna go through every LTE frequency band. So there will be data on that. Oh, yeah 42 00:03:52,400 --> 00:03:58,200 And one of the really cool things to consider is okay. Well, if you're on a network that's utilizing a 43 00:03:59,000 --> 00:04:03,600 Lower end of the frequency spectrum. You can actually get away with smaller batteries 44 00:04:04,480 --> 00:04:07,720 Just for the simple fact that doesn't draw as much power 45 00:04:07,840 --> 00:04:11,160 So yeah, we're we're gonna be doing some really cool tests on that 46 00:04:11,560 --> 00:04:17,240 I'm meeting with some reps from a couple of the different manufacturers of the spectrum analyzers 47 00:04:17,920 --> 00:04:25,480 So we're looking into Possibly a rodent Schwartz like an FSW 43 or maybe one of the Gauss 48 00:04:27,320 --> 00:04:36,480 One of the G line probably But basically we need a 43 gigahertz spectrum analyzer and that's gonna come down to you know cost 49 00:04:37,760 --> 00:04:40,160 line ass or 50 00:04:41,160 --> 00:04:45,360 In general ease of use, right? I want to get everything running as quickly as possible 51 00:04:45,760 --> 00:04:48,880 So we're gonna try and hit the ground running once everything comes in 52 00:04:49,320 --> 00:04:54,560 In the meantime before we get that though, we do have our lab kit fire cell. It has arrived 53 00:04:54,560 --> 00:04:56,560 It's actually outside if you guys want to go 54 00:04:58,520 --> 00:05:04,760 So I know it doesn't look like much but in these three boxes here, we actually have our 5g and 55 00:05:05,160 --> 00:05:09,080 Our 4g radio as well as the actual main compute unit 56 00:05:10,320 --> 00:05:14,760 These are are really cool These are 57 00:05:14,760 --> 00:05:16,760 this is the actual 58 00:05:18,040 --> 00:05:24,040 Network broadcasts or the SDR. So this is the edis research. It's a usrp b210 59 00:05:24,160 --> 00:05:26,600 So it's 70 megahertz to six gigahertz 60 00:05:27,280 --> 00:05:32,080 Right now. We can't do millimeter wave That upgrade is coming out early next year 61 00:05:32,680 --> 00:05:37,200 In the meantime, however, this is gonna get us kind of 80% of the way there 62 00:05:37,520 --> 00:05:42,800 So we've got our 5g. We have our 4g in here. So we're getting the upgraded millimeter wave 5g 63 00:05:43,480 --> 00:05:49,680 Early next year for our lab kit. We might actually add some equipment in the meantime that will kind of bridge that 64 00:05:50,240 --> 00:05:53,640 I'm actually talking to to one of our viewers. Hopefully next week 65 00:05:53,920 --> 00:05:57,680 Who is in this space and and has some advice for us? 66 00:05:57,680 --> 00:06:00,400 So we're gonna listen and make sure that you know, we're not barking up the wrong tree 67 00:06:00,960 --> 00:06:06,760 and then outside of that You know, this is running our network, but we also need to you know 68 00:06:07,200 --> 00:06:14,560 Have something in there to record tests. So for that, we went with this sira7. It's a completely silent fanless 69 00:06:15,040 --> 00:06:17,600 solid-state PC. It's totally passively cooled 70 00:06:18,560 --> 00:06:21,680 You can tell because it's basically a giant aluminium heatsink 71 00:06:22,880 --> 00:06:28,960 And the reason we went with a solid-state PC is just because there's no fans and fans can generate EMI 72 00:06:29,120 --> 00:06:33,440 So we want to try and minimize that as much as possible. So that's why we wanted that 73 00:06:34,160 --> 00:06:39,120 It's a decent little AMD Ryzen 5. It's a 5000 series 74 00:06:39,840 --> 00:06:44,960 CPU in there Nothing crazy, but we don't really need anything too high spec. So yeah 75 00:06:45,280 --> 00:06:50,560 The other really cool thing is about how we get our network inside the box because obviously can't use wi-fi 76 00:06:52,000 --> 00:06:55,760 And it's this wave guide now one of the really really interesting things with this 77 00:06:56,480 --> 00:07:03,680 Is that this is actually a plug And you notice it has this really really handy late warning label 78 00:07:04,400 --> 00:07:07,280 saying Tempest hazard with plug removed 79 00:07:08,560 --> 00:07:11,760 Now for those of you that don't know what a tempest attack is 80 00:07:13,040 --> 00:07:18,880 It's effectively a way to use rf to eavesdrop on displays. It's really cool 81 00:07:19,440 --> 00:07:24,960 It's not new But there's not really a huge amount of people kind of in the public space that talk about it 82 00:07:25,520 --> 00:07:30,160 Effectively you could be in another room or on the other side of a hotel wall 83 00:07:31,200 --> 00:07:35,200 Broadcast a signal and you can pick up what's going on 84 00:07:35,760 --> 00:07:40,400 On a display and you can set one of these attacks up for like 300 to 400 dollars 85 00:07:40,960 --> 00:07:45,440 If you plus a laptop So one of the things that I really want to do 86 00:07:45,840 --> 00:07:52,720 Possibly for a flow plane exclusive. We'll see is actually run a tempest attack online us in the chamber 87 00:07:53,600 --> 00:08:01,120 Come on we can leak the stream keys again. We can we can find out his emails. We you know everything 88 00:08:01,120 --> 00:08:05,760 It'll be great his life easier, right? So yeah, so if that plug is removed 89 00:08:06,880 --> 00:08:11,280 Boom, it's wide open Yeah, so I think that'll be pretty cool 90 00:08:11,600 --> 00:08:14,960 And finally one of the things that I've seen quite a few people ask is 91 00:08:15,440 --> 00:08:19,760 You know if one screw or bolt out of torque can cause a leak 92 00:08:20,320 --> 00:08:29,040 You know how a how do we maintain that? Um and b why didn't we just weld everything together? Well, these chambers are actually designed to be modular 93 00:08:29,120 --> 00:08:31,920 We can extend this if we need to say we want to 94 00:08:32,480 --> 00:08:36,480 Turn it into a three meter chamber and do full iso compliance tests 95 00:08:37,120 --> 00:08:39,600 We can do that. We get raymond emc to come back out 96 00:08:40,160 --> 00:08:43,760 We re-level this area of the floor and they can extend this as much as we want 97 00:08:44,320 --> 00:08:47,600 So it's designed to be modular and then 98 00:08:47,600 --> 00:08:52,960 Secondly as far as testing to make sure that you know everything's within spec that comes down to the duty cycle 99 00:08:53,280 --> 00:08:58,160 When we're inspecting any of the moving parts and things And we can actually do signal generator 100 00:08:59,040 --> 00:09:04,480 Via spectrum analyzer tests so we can have it broadcasting inside and we can go around and we can measure the outside 101 00:09:05,120 --> 00:09:12,400 It's not something we're going to have to do often But we'll probably end up doing it probably once every four to six months 102 00:09:12,960 --> 00:09:17,680 Just to make sure everything's working well I might even do a spot check once a month 103 00:09:18,320 --> 00:09:23,360 Just in a couple different places mainly around like the moving parts make sure the door has good contact 104 00:09:24,400 --> 00:09:28,400 Near the electrical maybe but yeah, it's not really a huge concern 105 00:09:28,640 --> 00:09:34,800 But thank you guys for bringing it up Now traditionally a lot of the foam in here would be held on by adhesive 106 00:09:35,360 --> 00:09:42,560 It's a bit of a pain Not just installed but you know someone falls against the foam or tip breaks off and you want to replace it 107 00:09:42,960 --> 00:09:45,680 So tdk came up with something really cool 108 00:09:50,480 --> 00:09:57,280 Their magnets we can actually pull off these panels if we wanted to introduce reflection 109 00:09:57,920 --> 00:10:01,600 So if we wanted to you know get the signal bouncing real good in here 110 00:10:02,080 --> 00:10:06,400 Take off a row of these and yeah, you can introduce some really interesting artifacts 111 00:10:07,200 --> 00:10:10,880 If we need to replace them, we just unscrew the magnets at the back put the new foam 112 00:10:11,120 --> 00:10:15,680 And pop it back in so yeah, it's a it's a really ingenious 113 00:10:16,640 --> 00:10:22,960 Installation process and it makes life a lot easier to maintain. That's so satisfying. Yeah 114 00:10:24,000 --> 00:10:26,800 the only the big pain in the ass with that though 115 00:10:28,880 --> 00:10:34,560 Was that When the electrician was on the roof wiring everything up 116 00:10:36,640 --> 00:10:40,160 The thud of him knocked one of these panels 117 00:10:41,840 --> 00:10:44,240 Up here off right 118 00:10:45,600 --> 00:10:47,600 Well, I'm six three 119 00:10:48,720 --> 00:10:52,640 And I can't reach yeah, and I can't put a ladder in here. Yeah 120 00:10:54,720 --> 00:11:00,960 So, uh, yeah unless it completely falls off you can't no it did. Oh, I did fall. Okay. Okay. It's stuck 121 00:11:00,960 --> 00:11:04,720 Oh, I guess you still can't be into the answer. Yeah. Yeah, I had to grab a broom 122 00:11:06,160 --> 00:11:09,840 and I had to grab a mop like a 123 00:11:09,840 --> 00:11:12,000 One of the mobs that has like the removable 124 00:11:13,120 --> 00:11:19,120 She or like cloth over it and I had to use two of those to like push it back up onto the ceiling