1 00:00:00,440 --> 00:00:07,640 did you know that when your phone says 5G up there it's probably lying when I 2 00:00:05,080 --> 00:00:14,759 type star pound star pound 4636 pound star pound star LTE I paid for 5G darn 3 00:00:11,559 --> 00:00:17,359 it what's going on here as it turns out 4 00:00:14,759 --> 00:00:22,680 corporations is a liar sometimes and this kind of trickery is one of the 5 00:00:19,160 --> 00:00:25,680 reasons that we decided to spend nearly 6 00:00:22,680 --> 00:00:28,320 $45,000 on an industry standard radio 7 00:00:25,680 --> 00:00:33,600 frequency shielded room it will allow us to identify and debunk all kinds of 8 00:00:31,160 --> 00:00:38,360 Industry connivance like this as well as test products like cell phones routers 9 00:00:36,320 --> 00:00:44,039 even microwaves for things like signal range battery drain interference 10 00:00:40,840 --> 00:00:45,520 Regulatory Compliance and so much more 11 00:00:44,039 --> 00:00:49,840 there's just one small problem they shipped us the wrong one and they 12 00:00:47,680 --> 00:00:56,480 stopped replying to our emails so now all we have is this foam a big pile of 13 00:00:53,440 --> 00:00:59,519 wood some other assorted paraphernalia 14 00:00:56,480 --> 00:01:01,760 and a great big project to turn this 15 00:00:59,519 --> 00:01:05,400 into something usable but don't worry we got a plan for that that I'm going to 16 00:01:03,280 --> 00:01:09,920 share with you along with this segue to our sponsor team group Black Friday and 17 00:01:07,960 --> 00:01:14,600 Cyber Monday are coming and team group has organized a cyberpunk style website 18 00:01:12,520 --> 00:01:19,040 with tons of deals click the link below and take advantage of their sale today 19 00:01:17,320 --> 00:01:23,479 when it comes to wireless technology it's really hard to know what's going on 20 00:01:21,119 --> 00:01:26,759 and it's not like you can see it which means that before we canest anything 21 00:01:25,479 --> 00:01:32,920 we're going to need some specialized equipment for one thing we're going to need a 4G 5G lab kit which is 22 00:01:30,759 --> 00:01:37,880 essentially a mobile network in a box that will allow us to spin up our own 23 00:01:35,600 --> 00:01:41,520 access points here and then measure the performance at various frequencies 24 00:01:39,399 --> 00:01:45,600 across the Spectrum with all kinds of devices be they iPhones or Samsung 25 00:01:44,000 --> 00:01:50,439 Galaxies naturally we'll want to do the same thing for Home wireless equipment 26 00:01:47,240 --> 00:01:51,680 be it Wi-Fi or Bluetooth and in order to 27 00:01:50,439 --> 00:01:59,079 ensure that our measurements are accurate we will need an EMC chamber so let's talk about 28 00:01:56,520 --> 00:02:05,000 the kind we were supposed to get for those of you in the oh 45 Grand for a 29 00:02:01,560 --> 00:02:07,680 fully assembled 16x 12T EMF chamber is 30 00:02:05,000 --> 00:02:12,840 actually not a ton of money that is because we bought it used wait 31 00:02:12,920 --> 00:02:17,760 used no actually that is completely 32 00:02:15,920 --> 00:02:22,360 normal and fine as long as it was built by reputable manufacturer these things 33 00:02:19,959 --> 00:02:26,599 have no moving parts so they don't really wear out the way that you might 34 00:02:24,200 --> 00:02:30,519 imagine and it's extremely common to see scientific equipment like this on its 35 00:02:28,800 --> 00:02:34,640 third or fourth or fifth owner decades after it was first 36 00:02:32,800 --> 00:02:41,080 built of course it doesn't really look like anything special what makes it a a 37 00:02:37,120 --> 00:02:43,159 good one well this one honestly not much 38 00:02:41,080 --> 00:02:47,519 it took 3 weeks to ship and not only does it not match the picture on the 39 00:02:44,640 --> 00:02:52,519 website it is entirely the wrong size we ordered 16x 12 and they shipped us a 40 00:02:49,480 --> 00:02:55,280 13x13 not to mention that it is in 41 00:02:52,519 --> 00:03:00,680 horrible condition like seriously this thing looks like they stored it outside 42 00:02:58,000 --> 00:03:07,040 look how beat up these foam panels are like what even happened to the tips on 43 00:03:03,319 --> 00:03:09,799 this one and this one and this these are 44 00:03:07,040 --> 00:03:13,239 the most critical part of the chamber but since it's in this state anyway I 45 00:03:11,720 --> 00:03:19,080 guess nothing prevents me from cutting it open and giving you guys a little lesson about foam different kinds of 46 00:03:16,519 --> 00:03:25,000 Chambers those designed for acoustic use or radio frequency 47 00:03:21,120 --> 00:03:27,959 use wow this stuff is pretty heavy ah 48 00:03:25,000 --> 00:03:32,439 come on open up the point is they will use different kinds of foam materials in 49 00:03:30,319 --> 00:03:37,239 construction depending on their purpose ours is a high performance fire 50 00:03:34,879 --> 00:03:44,120 resistant theoretically so it is pidal foam EMC 51 00:03:41,040 --> 00:03:46,000 absorber EMC stands for electromagnetic 52 00:03:44,120 --> 00:03:50,680 compatibility and means that it shouldn't unintentionally generate 53 00:03:48,080 --> 00:03:56,840 reflect or retransmit electromagnetic interference oh that stinks of course no 54 00:03:54,959 --> 00:04:01,120 material is going to be absolutely perfect in this regard which is where 55 00:03:58,560 --> 00:04:05,799 the shape comes into play these pyramids aren't purely aesthetic but rather they 56 00:04:03,280 --> 00:04:09,799 have a function an electromagnetic wave like a sound wave can reflect off of a 57 00:04:08,400 --> 00:04:16,560 flat surface which means that if you're trying to measure the strength of a signal from a Wi-Fi router for example 58 00:04:13,959 --> 00:04:21,160 with a sensor here that bounce or realistically many 59 00:04:19,600 --> 00:04:26,759 bounces could interfere with your reading now to be clear acoustic and EMC 60 00:04:24,400 --> 00:04:31,560 products can be flat like the acoustic panels that we mounted for col me Chris 61 00:04:29,000 --> 00:04:37,800 and that will still help to reduce the energy of any waves that hit them but by 62 00:04:34,479 --> 00:04:41,360 employing this shape we give the waves 63 00:04:37,800 --> 00:04:43,280 multiple opportunities to bounce off of 64 00:04:41,360 --> 00:04:48,479 the sides of the pyramids before hopefully being nearly fully dissipated 65 00:04:46,080 --> 00:04:54,639 this elimination of bouncing waves is where an an eoic chamber gets its name 66 00:04:50,600 --> 00:04:57,360 an like not any echoic like not any 67 00:04:54,639 --> 00:05:00,840 Echoes not all Foams are created equal though like the highdensity foam that we 68 00:04:59,120 --> 00:05:05,440 use in our super comfortable straps on the LTT backpack LTD store.com and there 69 00:05:03,360 --> 00:05:10,199 are a couple of main differences between EMC foam like this and the kind that you 70 00:05:07,880 --> 00:05:15,400 would find in a Sound Chamber first up while both are made of polyurethane the 71 00:05:12,600 --> 00:05:19,479 density and the internal structure tends to be higher for acoustic applications 72 00:05:17,800 --> 00:05:25,319 compared to what we need the second major factor is that EMC foam like ours 73 00:05:22,440 --> 00:05:31,080 is carbon impregnated carbon has a lot of space in its outer electron orbitals 74 00:05:28,080 --> 00:05:32,919 allowing it to absorb energy which then 75 00:05:31,080 --> 00:05:37,919 gradually dissipates causing the electrons to fall back into their normal 76 00:05:35,199 --> 00:05:43,280 orbitals this makes it super effective like iron at blocking electromagnetic 77 00:05:40,680 --> 00:05:49,080 interference turning the entire chamber lined with this stuff into a sort of 78 00:05:45,880 --> 00:05:51,319 Faraday cage sort of For Better 79 00:05:49,080 --> 00:05:56,840 isolation what we should really have is high density ferite tiling that lines 80 00:05:54,039 --> 00:06:03,280 the inside of the chamber but a 2X 2 in tile okay is $8 which is why comparably 81 00:06:01,240 --> 00:06:07,680 sized Chambers with fite can run you into the millions of dollars that's a 82 00:06:05,759 --> 00:06:12,479 yikes the good news is that we don't actually need ferite tiling ferite is 83 00:06:10,240 --> 00:06:18,360 useful for blocking lower frequency waves and with it we could block signals 84 00:06:14,599 --> 00:06:21,400 all the way down to 26 to 30 MHz 85 00:06:18,360 --> 00:06:23,280 allowing us to test like am radios and 86 00:06:21,400 --> 00:06:26,680 stuff but I suspect most of you don't really care about that sort of thing 87 00:06:24,479 --> 00:06:31,680 anyway and besides without the ferite tiling we can still keep anything above 88 00:06:29,560 --> 00:06:35,639 800 MHz from passing through the walls into our chamber as for extremely high 89 00:06:33,880 --> 00:06:40,039 frequencies well we don't need to worry about those in here either because we've 90 00:06:37,800 --> 00:06:43,560 got a 10in thick concrete building all the way around us that is going to block 91 00:06:41,440 --> 00:06:48,240 them out nicely the finished chamber is going to be assembled right here and 92 00:06:45,280 --> 00:06:52,880 it's going to be about this big I'm walking around inside it right now which 93 00:06:50,560 --> 00:06:59,000 is a perfect fit for our consumer electronics devices along with our 4G 5G 94 00:06:56,240 --> 00:07:04,800 antenna cameras and any other measuring equipment that we will need when it's 95 00:07:01,080 --> 00:07:06,720 built but first story time as I already 96 00:07:04,800 --> 00:07:12,080 mentioned the picture on the website didn't match what was shipped but guys 97 00:07:09,160 --> 00:07:16,960 it gets way worse than that the seller never sold that chamber or even owned it 98 00:07:15,080 --> 00:07:22,240 in the first place I mean we thought we were at least buying a comparable one 99 00:07:19,319 --> 00:07:26,800 but it was completely different well could have been an innocent mistake 100 00:07:23,800 --> 00:07:29,520 right no not so much thanks to the 101 00:07:26,800 --> 00:07:34,160 contractor who ironically the seller ired to come out and build this thing 102 00:07:31,520 --> 00:07:39,039 for us we got in touch with the original seller of the actual pictur chamber and 103 00:07:37,000 --> 00:07:44,879 it turns out that they messaged these guys years ago telling them to remove 104 00:07:41,800 --> 00:07:46,720 those photos thing is the RF industry is 105 00:07:44,879 --> 00:07:52,360 pretty small and it seems like everyone knows everyone now thankfully we haven't 106 00:07:49,560 --> 00:07:57,400 actually wired the money for this so the obvious course of action was hey guys uh 107 00:07:55,280 --> 00:08:05,960 can you pack all this up and take it back and this I kid you not is their 108 00:08:02,960 --> 00:08:08,159 response it has been months of crickets 109 00:08:05,960 --> 00:08:15,879 now which I guess means I am the proud owner of many many piles and pallets of 110 00:08:13,120 --> 00:08:19,680 literal garbage it's not all bad though through the assembly contractor we were 111 00:08:17,520 --> 00:08:23,000 able to get in direct contact with some excellent EMC chamber manufacturers and 112 00:08:21,720 --> 00:08:30,400 we're hoping that the next time we update you guys on this it'll be with great news and maybe there's a way to 113 00:08:27,720 --> 00:08:35,640 make some lemonade out of the lemons the thing is the degradation of these 114 00:08:32,519 --> 00:08:38,479 pyramids means that we cannot trust this 115 00:08:35,640 --> 00:08:45,000 foam to evenly attenuate any RF in the interior space but it could still prove 116 00:08:42,120 --> 00:08:50,160 useful for our future sound isolation chamber which will be a dual wall design 117 00:08:48,279 --> 00:08:54,040 so there's no reason that we couldn't pack this stuff into the airspace 118 00:08:51,959 --> 00:08:58,160 between the inner and outer walls to improve the isolation even further as 119 00:08:56,440 --> 00:09:01,720 for the framing well 120 00:09:00,000 --> 00:09:05,600 we can use that to put together our camera testing chamber which is going to 121 00:09:03,279 --> 00:09:09,320 have consistent lighting and lots of fun little objects and test patterns that we 122 00:09:07,279 --> 00:09:13,279 can take pictures of to evaluate both Standalone and smartphone integrated 123 00:09:11,440 --> 00:09:16,640 cameras if I get my way it'll also have a little model train which I think would 124 00:09:15,399 --> 00:09:22,079 be sick as for the rest of it well I don't 125 00:09:19,880 --> 00:09:26,640 know hopefully we'll figure something out and they're not expecting us to send 126 00:09:24,640 --> 00:09:30,399 this back after leaving it with us and ignoring us for months I mean the way 127 00:09:28,760 --> 00:09:33,640 that I see it if they asked for it back at this point by the way you guys this 128 00:09:31,800 --> 00:09:39,600 looked like a lot come come come come come come come over here it's two layers 129 00:09:37,000 --> 00:09:47,120 thick no no no you got to see yeah here here can you see that it oh sorry sorry 130 00:09:43,079 --> 00:09:48,600 it's two it's two layers thick so if 131 00:09:47,120 --> 00:09:52,200 they ask for it back I think I'm just going to send them a storage invoice for 132 00:09:50,200 --> 00:09:55,880 their garbage and it might end up being a better deal for them to simply walk 133 00:09:54,000 --> 00:10:00,040 away like look I don't like to have to do it but if I have to go ruthless 134 00:09:58,680 --> 00:10:05,160 business guide then I I will I will cuz this is this 135 00:10:02,839 --> 00:10:09,839 ridiculous look at this it's got like tree debris on it like all over it 136 00:10:07,399 --> 00:10:14,040 that's not from us we've had it inside oh we haven't tested to see if it 137 00:10:12,160 --> 00:10:17,920 actually works at all for anything are you thinking what I'm thinking foam Fort 138 00:10:16,600 --> 00:10:27,399 foam Fort LMG 5 we're sitting at about 60 139 00:10:22,760 --> 00:10:30,959 okay okay and going into the chamber and 140 00:10:27,399 --> 00:10:33,399 then wow I'm already already at 70 and 141 00:10:30,959 --> 00:10:36,720 here we are while I may not be able to present the data we would collect from 142 00:10:35,000 --> 00:10:42,160 this chamber to you guys as valid results just because of all the issues 143 00:10:38,800 --> 00:10:45,320 with it can confirm carbon impregnated 144 00:10:42,160 --> 00:10:47,440 foam definitely does a thing in fact I'm 145 00:10:45,320 --> 00:10:50,480 using my onboard recorder right now that goes to the pack at my hip and we're 146 00:10:48,959 --> 00:10:53,760 going to switch over to the one that I am transmitting to our camera operator 147 00:10:52,360 --> 00:11:00,800 over there and you guys are going to see it's pretty bad Adam want to go ahead and close in the last 148 00:10:56,760 --> 00:11:02,959 spot here we go all also you're going to 149 00:11:00,800 --> 00:11:11,240 see that when I bust out of here this red SSID in the corner here is going to 150 00:11:05,440 --> 00:11:11,240 go from about minus 80 two here we 151 00:11:14,800 --> 00:11:20,279 go I dropped myself up to minus 50 all 152 00:11:19,079 --> 00:11:23,839 right I can't wait to have an actual working one just like I can't wait to 153 00:11:22,120 --> 00:11:27,639 tell you guys that you can see the full video of us building the blockport over 154 00:11:25,240 --> 00:11:33,440 on Floatplane decom and oh I also can't wait to tell you about our sponsor 155 00:11:29,800 --> 00:11:36,680 MSI MSI released their new GeForce RTX 156 00:11:33,440 --> 00:11:38,680 490 Supreme and it inherits the exterior 157 00:11:36,680 --> 00:11:43,000 design philosophy of its predecessor with a brushed metal cover and Chevrons 158 00:11:40,839 --> 00:11:47,079 around each fan there's sections of different heat sink fins to disrupt 159 00:11:44,760 --> 00:11:50,760 unwanted airflow sounds to reduce noise and thermal pads under the metal back 160 00:11:48,800 --> 00:11:54,880 plate to provide additional cooling while ventilation reduces trapped Heat 161 00:11:53,079 --> 00:11:58,120 their Torx fans promise excellent longevity due to the double set of 162 00:11:56,680 --> 00:12:02,320 durable ball bearings that keep them spinning and there dual BIOS feature 163 00:12:00,240 --> 00:12:06,639 gives you control you can choose either full performance gaming or silence and 164 00:12:04,920 --> 00:12:11,079 they bundle in a support stand that can be attached to your case to hold up the 165 00:12:08,320 --> 00:12:14,839 card because hey every tank needs good support that's actually very funny I 166 00:12:12,800 --> 00:12:19,680 like the talking points so check out the RTX 490 Supreme at the link in the video 167 00:12:17,639 --> 00:12:23,000 description if you guys enjoyed this video you might also enjoy the one where 168 00:12:21,199 --> 00:12:27,040 we gave you guys a lab update on what's going on with keyboard testing so why 169 00:12:24,519 --> 00:12:32,839 don't you go check out that one um can I actually get a hand though 170 00:12:29,880 --> 00:12:37,680 just get that CL yeah CL yep no no for real like it y okay it's just at a 171 00:12:35,800 --> 00:12:40,199 really weird angle I couldn't get any Leverage