this should be used as a copypasta somewhere

ATSC 1.0 has at least two very dumb things about it. #1: The 8VSB modulation. 8VSB is basically amplitude modulation with, spectrally, everything below the carrier attenuated off. In theory, that sounds ok, except that it’s extremely vulnerable to multipath. GUESS WHAT HAPPENS ON EVERY TV SIGNAL IN AN URBAN AREA. The margin’s not that big for multipath, and once you hit it, the whole signal’s useless, leaving your viewers to dance around with the antenna and wonder why they just can’t get picture….
8VSB was only, from documentation I’ve found on it, lab tested for performance in terms of signal to noise ratio in a proof for the FCC… no attempt was made to simulate or measure receiver performance in the face of multipath. I’m not sure if this was because nobody ever had the “aha!” moment and realized it’d be a problem or if some vendor already heavily invested in it swept it under the rug. Just about every other country used DVB-T which allows for more spectrally efficient and robust modulation standards including QPSK (very robust but not as efficient as QAM), 16QAM, and 64QAM.
This raises another issue that was dumber on the broadcaster’s side: 8VSB was in part chosen because it would, in theory, work through existing analog transmitters, requiring only slight modifications to things like the combiners and an exciter swap. In practice, no transmitter manufacturers really opened this up as an option, and everyone had to buy all new shit. In fact… the klystron based UHF television transmitters proved not to have the linearity (or SOMETHING) to deal with 8VSB and the Inductive Output Tube had to be brought out of mothballs to deal with it. The IOT has great linearity but no damn efficiency – it was originally used by General Electric for an early World’s Fair demo of UHF television broadcasting, but commercially never took off… anyway, later on, EEV’s esciot series tubes improved on that somewhat… but… they’re still a pain in the arse
Stupid Thing #2 (or is it about #8 by now?): MPEG2. Do I look like I know what an mpeg is?*
So here not only do we have this shitty 8VSB modulation sapping the available amount of information that can be broadcast in a certain width of channel but then…. MPEG2 video coding was specified. I suspect that’s evidence of the standard’s development either being dragged out forever OR someone just wanted to be able to use up a bunch of DVD player decoder ASICs they had sitting in a Chinese warehouse. As a result of the MPEG2 encoding being used, the picture looks like DOUBLE BUTT when there’s a lot of motion, especially when you’re running a lot of subchannels squeezed into that 18.3 megabits/sec…
And then you have the whole godawful thing where the CECB program led to the cost of converter boxes which probably actually cost about $25 including hardware, manufacturing, and patent licensing royalties being fixed right up to $40…. but that’s a far dumber story
* https://www.youtube.com/watch?v=j5nZhf8SjXw

ATSC 1.0 has 💹👩 at 😂☺ least two very ❗😔 dumb 👅🤤 things about 🏻👏 it. 💡😏 #1: ⏰🤜 The 8VSB modulation. 8VSB is basically amplitude modulation with, spectrally, everything below ⬇😫 the carrier attenuated off. 📴 In 👏 theory, 🍆 that 😦 sounds 👌👌 ok, 🆗 except 😮😮 that 👈 it’s 💯❗ extremely 💯💯 vulnerable to 😄 multipath. GUESS 😦 WHAT HAPPENS ON 😢🔛 EVERY 🏾 TV 📺📺 SIGNAL IN 🍑 AN 😮👏 URBAN AREA. The margin’s not 🚫 that ğŸ‘¶âž¡ big for multipath, and ☢🍆 once ⁉🍆 you ☝ hit it, 😵 the 🙆 whole signal’s useless, ⏳ leaving 🏃🏃 your 💯💦 viewers to ğŸ’°ğŸŽ¯ dance 💃💃 around 😇💦 with 👏 the antenna and 👏 wonder why they just can’t 💦🔫 get picture…. 📷💭 8VSB was only, 🔑 from 😂 documentation I’ve 💰👈 found on 🔛 it, lab tested for ğŸŽ performance in terms of signal to 💦 noise ratio in a proof 💯💯 for 🍆🍆 the 💰👏 FCC… 🚫 no 🚫🙅 attempt was 👍👏 made to 💨 simulate or 💁 measure ğŸŽ›ğŸŽ› receiver performance in the 🏳👏 face of multipath. I’m not 🙅 sure if 👉👏 this 💦👈 was because 📝♂ nobody 🙅 ever had 💦 the “aha!” moment ğŸ•žğŸ•‘ and 👏 realized it’d ❓🍝 be 💨😐 a problem or 👱👱 if ğŸ™ŽğŸ…± some 💛 vendor already heavily 😃😃 invested in 🏽🙌 it swept 🤣🤣 it under ⏬ the 🅰 rug. Just 😬😶 about 😯 every 👏👖 other country 😂🏃 used DVB-T which 👏 allows for 😏 more spectrally efficient and 💦 robust modulation standards including 💨 QPSK (very ☣👿 robust but not 👮 as efficient as 🏃🍑 QAM), 16QAM, and 💩 64QAM. This 👈⬆ raises another 🏻 issue that 😠👌 was dumber on 👋🔛 the 👨 broadcaster’s side: 8VSB was in ❤ part chosen because it 💯 would, in theory, 😂 work 🏃😠 through 🚪 existing analog transmitters, requiring only 🏻☝ slight modifications to 💥💦 things 🕑 like 🙅 the 🚑🚪 combiners and 👀👅 an exciter swap. In 🌤😩 practice, 🍆 no transmitter manufacturers really 🏳👄 opened 😅😅 this ⬆ up ❤🏿 as 🍑 an option, and ➕ everyone had ğŸ‘ž to 💰😛 buy all ğŸ˜Ž new ğŸŽ†ğŸ½ shit. 👌 In fact… 🛡🔍 the 💦 klystron based UHF television transmitters proved not ❌🚫 to 🆒😤 have ğŸ˜Ž the ♀👏 linearity (or 🅱🅱 SOMETHING) 🤔❓ to deal with 👫 8VSB and the 📺 Inductive Output Tube 🙈🐱 had ☝🈶 to be brought out 👿 of mothballs to 🔣 deal with it. ✔ The IOT has 💰💹 great linearity but 🍑 no damn 😩 efficiency – it was originally 🔙 used 🚟 by General ♂ Electric ⚡⚡ for 💕❓ an 💶 early 🕐 World’s Fair demo of UHF television broadcasting, but 🍑 commercially never ❌😤 took 😱 off… anyway, later ⏰💯 on, 🍆 EEV’s esciot series tubes improved on that somewhat… but… ✋🍑 they’re 😄 still 👉 a ğŸ“–ğŸŽ¯ pain in 🛌 the 👏📖 arse Stupid Thing #2 💁 (or 💀 is it 😡😩 about #8 👊 by 😈👊 now?): MPEG2. Do 👌 I 👁 look like I know what an 👌👹 mpeg is?* So here 👏⤵ not only do 👌 we have 👏🈶 this ⁉ shitty 8VSB modulation sapping the 👑 available amount 📉 of information that can 💦♀ be broadcast in a 🍑 certain width of channel 👀 but then…. 👱🅱 MPEG2 video coding was 😰🙂 specified. I 🏿🔥 suspect that’s 😐 evidence 📰📰 of 👌💦 the 👏 standard’s development 🔬🔬 either being 😑 dragged out forever OR 💦💦 someone just 👏🤔 wanted 🅰 to be 🐝💰 able to 💦 use 👏 up 🔝😍 a bunch of ❗ DVD player 💰🤺 decoder ASICs they 😂👥 had 🍆 sitting 🙇 in a Chinese 😕😕 warehouse. As 🍑 a 💰💰 result of 😴💦 the MPEG2 encoding being used, 🚟 the 😬 picture 💩 looks like DOUBLE BUTT 😍 when 🍑😩 there’s a 👌👌 lot ‼ of 💿😏 motion, 😐 especially when 🍑 you’re 🔥🏃 running 🏃 a 👦 lot 🍑 of subchannels squeezed into that 🏻🙇 18.3 💋 megabits/sec… And 😤🚄 then you 👈👧 have the ğŸŽğŸ‘ whole 💦👩 godawful thing where 😭😠 the 😈🏻 CECB program led to the 🍗 cost of 🚋💦 converter boxes which 🥙 probably actually cost 💰💰 about 💦 $25 👏👏 including hardware, manufacturing, and ➕☝ patent licensing royalties being fixed right ✔✅ up to 🔍 $40…. but that’s 😻 a 👌 far 🆘💦 dumber story 📜📖

ATSCğŸŒ‹ğŸ”ŽğŸ‡ 1.0🌈 has👧🏼🔢 atğŸ†ŽğŸƒâœŠğŸ»ğŸ’ğŸ½ 🤴💰 leastğŸŽŒğŸ”Ÿ two🐃 👬 very♍️ dumb things〰✋🏽 🏋🔱 about📕 🍾💦 it.📛 #1:〰⚡️ 👂 TheğŸŽ 🏠 8VSB😑🔳 modulation.👨🏼💅🏽 8VSB🕦🐼 is🌃 basically↗️ 💅 amplitudeğŸ’Ž modulation✌🏿👍🏼😕👷🏾👰🏾 with,🔕 👏😶 spectrally, everything 🙌👍 below🐃 😫😫 the🚍🐍🚲🐋🏇🏽 carrier7âƒ£ğŸŽ® attenuated💙💃🏾🏇🏽 off. InğŸ‘±ğŸ¾ğŸž 👏 theory,↗️💲🙏🏽 that🕑👿💕 sounds📖🆒😦 ok,💪🏽 exceptğŸŽğŸ“¥ that®🚚 it’s👨‍👨‍👧🏢 🐈 extremelyâ›ŽğŸ•—ğŸŠğŸ¼ğŸ˜¹ 💛 vulnerable💠😣🌝🍛🍡 to🌘✊🚂 😂💦 multipath.🍺👳🏽👙 GUESS 🤔🤔 WHAT🌐🍢🙇🏼 HAPPENS😻🙆🏿😫🐭 ON🌖 EVERY♏️ 👏🤙 TV🔼↖️ 📺📺 SIGNAL👲🏼🍼 IN⛳️🌅👩🏽✊🏿 🍑 AN🔌🍟 💶🌑 URBAN😳👉🏾♓️ AREA.🚣 The🏄🏿🔡🔂🍧 👦 margin’s🈚️🌐💖 not💆🏼💣 that 😐 big👨🏿🚻 👺🍆 for👨‍❤️‍💋‍👨👍🏾 multipath,⏩💛 and🆙 onceâŒ›ï¸ğŸ™ŽğŸ»ğŸ¡ you💊😲🌇™🕘 👏 hit👄 😵👏 it,💴👷🏽💊🍆 😏 the🛀🏾👸🏼 👏👌 whole👴 😍 signal’s🍠🚊👨‍👨‍👦↙️💕 useless,ğŸ‘¹ğŸŽ²ğŸ‘‹ğŸ» leavingğŸŽ‚ğŸšµğŸ¾ğŸŽ´ 🏃🍃 your💆🏿👼🏾🚨👲🏽📭 viewers👶🏾 to👆🏽🏮 danceğŸ•žğŸ around 👥😇 with💊👸🏽 the ⏲ antenna🙍🏻💪🏼🚄 and♉️🏈 🔙 wonderğŸ•£ğŸŽŽğŸ’’ğŸš 🤔😮 why😳👻 they🚴🏻 just🐂 😧🤷 can’t ♀ get⛽️ 🅾🉐 picture….☁️ 8VSB⚽️🕙 was🏨🐸🏄 🤣💦 only,🚶🏽🕓 from 😂😲 documentation👱🏼📑 I’ve🍃👱🏽 👈😠 foundğŸ†Ž ❌ on🌒 🔛💦 it,🙋🏽🈯️📪🙏🏿 🙂👏 lab😰👂🏼 tested📰❌🔵🚣🏿💅🏼 🤓 for🍩😍🌹 ğŸ˜Ž performance🙅🏿🔙✏️📒 in👵🌔👐🏿 termsğŸ”€ğŸˆ¸ğŸŽ¥â¤ï¸ of👦🏼 🔌😿 signal🔠👱😰❤️ to✊💚 🏿 noise ratio✂️ in😮🌺 🍌 a😫🏠💅🏽 🔫 proof👶🏾🙋 💯📊 for🏇🏽 the💜👐🏽🚑🐟💜 🌌 FCC…👆🏼🚣👂🏿🍻 🏴🏴 no♠️😿🙏🏻🙅🏿 🅱 attemptğŸâ™Šï¸â›³ï¸ğŸ‘ŠğŸŽŽğŸ•˜ was🚈 made⏪ 👑 toğŸŽ®ğŸš£ğŸ¿ ✂ simulate🙀🚱📩 or💲 💰 measure📚📻 ğŸŽ›ğŸŽ› receiver🏊🚣🏻 performance🚋 in🏊🏻🙅🏾 🐕🏼 the📗😡🙍🏽 face😽👵🚣🍼 of👉🏿🔋 😱 multipath.🙋🏽 I’m🍶🍩 not🙅 😅🚫 sure🚛🏬↙️🍶🏪👼🏼👮🏽😷 if🕑 this🏄🏻⏰👩‍👩‍👧‍👦 was⭕️ 🅿 because🍌 nobody📠👉🏼👈✅👟🛀🏿🐡 ♂♂ ever📺🌁🆑 ⁉ had 💔 the▶️ ⛓👏 “aha!”🐖 moment 😳 and🔚 👏 realizedğŸ‘ğŸ¾ğŸšŽ it’dğŸšŽâ†–ï¸ beğŸ²ğŸ©ğŸŽ¿ 🐝👏 ağŸ™ŒğŸ½ğŸŽ² problem📊👏📡📈 or👺 ifğŸš‰ğŸŽ ❓ some🚈 ☃✝ vendor😳🍝 alreadyğŸŽ± 👋😃 heavily🍋 💦💦 invested✌🏽 in😱🚽 it🔄🔩🏊🏾 swept🕑👧🏾 🤣 it🙏🏼🕔😧💗 🙂🤡 under🕠🔬👧🏾🍘🏂🌓 the😣🗼🌌😘 rug. Just📁 👏🗼 about🐄💦🐈↙️ 💩💭 every🙇 other🏇🏼 👪 country🔘 😣🏃 used 🙄🚟 DVB-T🔂♻️🚵🏻📥 which👨‍👩‍👧‍👦🍕🈂 allows🚕💃🏼 for🏃🏾 more♣️ 😡♀ spectrally🔲🔄💁 efficient💇🏻 🔛 andğŸšŽğŸš´ğŸ¼ robust🍬👇🏻👌🏼💃🏾 modulation💽👸🐠♊️ standards👂🏻😊 including 💨 QPSK✋🏻🙆🏻 (very🚹🌱🍫 👿✅ robust📫 but☑️ notğŸ“’ğŸ”ž as👳🏽 efficientğŸ¦ğŸ˜£ğŸŽğŸ‘®ğŸ¾ as👸🏾 🍑 QAM), 16QAM, and📒🐜👦 ➕ 64QAM.👵🏼🌏👮 This👐🏾🕥🌠◽️ ğŸ™ŽğŸ¤– raises🌇 another🐛 ♂🏗 issueâœ…ğŸ•žğŸŽ­ğŸ‘­ ♂😭 that😛✊🏻🍈🍚🌻 ♥⚪ wasğŸ‡ğŸ»ğŸŽª ✨👍 dumber🙋🏻👦🏼📩 on🚸 👋 the broadcaster’s👩🏼 side: 8VSB👉 was🙍🏾 inğŸ”«ğŸ‘žğŸ«ğŸš¾ part🐸 🤐 chosen🚣🏾 because😭📪🔃 🤓 it🔴 would,🏮 in🍑♻️ 📥 theory,👘🙆🏻 😂😂 work👭 through existing🚤💩👱🏼🕙📙 analogğŸŽ»ğŸ’· transmitters,🍂📧🏣 requiring🚪🚴🏿 only📩 slight🔆 modifications to✋ things🙌🏼🚲 like🚛👈🏼🚇🗼 🗣 the⏰🕣 ğŸŽµ combiners💆🏼 andğŸ™ŽğŸ¿ ♀ an 😆🍆 exciter🏂 swap.ğŸ’¦ğŸ”‡ğŸºğŸŒ´âž— In🗾⬛️ 👏 practice,🏄🏽 ğŸ†ğŸŽ¯ noğŸŽ‹ğŸš´ğŸ¾ 🌈 transmitterğŸŽ¦ manufacturers really🐀👊🏼🍑 😱 opened🚉 this up😸🔗◀️👔 😍🕺 as🅿️🍋🛂 👦 an📙🙏🏼☀️👄 option,🚷🐽👸🏻 and🌏 everyone👫 😳👨 had🗽⛽️ 💋✊ to✊🏻🏃🏻 💦🚶 buy💛 💲 all🏊🏽 new ğŸ—žğŸ½ shit.👩‍❤️‍👩 In🙍🏻❇️🐄 fact…⌚️ 🏫 the🕕 klystronğŸšƒğŸ’­ã€½ï¸ğŸŽ½ based⚓️ UHF television👬 transmitters👋 proved📉 not👐🏾📭 to 👊 haveğŸ“µğŸŽ°ğŸšµğŸ»ğŸ’° the📑🕟 linearity🚃🐇 (or🍺 🙂🚻 SOMETHING)🙅🏼 to🐀⛪️ 👏 deal with👻🔄 👏 8VSB and👸🏾👵🏼😉🐏🅿️💇🏾⏳ ğŸŒž the💥 InductiveğŸŽ€ Output🌉👩🏿 Tube👊🏻 had👕 ❗ to↖️ 💦👏 be🙇🏿🐴✨❔ 😤 brought📨 outğŸŽ¯ğŸ˜¸ 💦💯 of✴️ mothballs🔜 to🐷 deal👇🏽😉🕥🚔🔍🛀 with❔💮 🆕 it.👲🏾✏️ 💯 The📂 IOTâ˜ğŸ»ğŸ™Ž has👱🏽🚣🏻 🙏 greatğŸŽŽâ–¶ï¸ğŸ”šğŸ¢ğŸš£ğŸ¼ğŸºğŸ‘šğŸª ğŸ’ªğŸŽ‰ linearityğŸŽ…ğŸ¿ğŸ† but💊 🍑🙅 no🍂🌑 🙅⛔ damn👤🔃 😳 efficiencyğŸŽ¼ -👮🏾 it👶🏽👵 👍🍝 was👂🏼 originally💛👦🏻🚴🏿🌔👉🏼 🔙🔙 usedğŸ”½ğŸŽ…ğŸ¾ 🆒 byğŸ‘ŽğŸ½ğŸ‘ˆ 👋 General 👮👮 Electric⭐️➗ forğŸ¬ğŸ«ğŸŽ½ğŸ™‹ğŸ¿ 🍆 an💐 💸 earlyğŸŽƒğŸ•¢ğŸ’‡ğŸ¾ 🥂 World’s🐳🚪🍥 ğŸŒğŸŒŽ Fair 😆 demo👵🏼🛀🏽 ofğŸ”€ğŸ’ƒğŸ¾ğŸŽ  UHF👐🏼🙆🏼 television broadcasting,👛 but🌀👶🏼🌆 👌🍑 commercially✅ never🙇🏻 ‼ took🚤 🤚 off…🐝 anyway,⏫ later 🕑 on,⏩™ 👏🔛 EEV’s esciot👨🏽 series📴💾👃🏻 💓 tubes improvedğŸŒŽ on 🏽 that🙋🏻 🌈 somewhat…💇🏻🍻 but…👦🙅🏼 🍑 they’re🍆💁🏾🌘🕧💒 🏼 still 🙄 ağŸŽ²ğŸ‘©ğŸ¾ painğŸ‘¯ğŸŽ¢ğŸ“¡ğŸ™ŒğŸ» in❤️ the arse StupidğŸ”’â›„ï¸ğŸŽ…ğŸ¾ Thing⬆️ #2⌛️ (or 🍆 isğŸŽ± it💧🈚️ 💋 about😝👆🏾 💦 #8 🤔 by❤️ now?):ğŸ†ğŸŽ 👋☝ MPEG2.🆑🔉👐 Do🚴🏾👋🏼 I🚘🐖 look💆🏽🔱 ğŸ”ŽğŸ‘ likeğŸ™ŽğŸ¾ğŸ›‚â†˜ï¸ 🅰 IğŸŽªğŸ‘ˆğŸ½ 💕 know👐🏽 🙏 what🏫🍂 😅😅 anğŸŽ©â˜ğŸ» 👹🏿 mpeg😲 is?*👓 💦👶 So🐹 💯💦 here not🚋💾👲🏻👮 😫🙅 only👴🏿👌 do👏🏾🔡 we📝🙇🏻🆑👃 👨 have🌘🙋🏾😝☝🏿 🅰 this🐏🍐☝🏾☕️ shitty💉 😠 8VSB👃🔱 modulation🐢 sapping📭✌🏽 the 💪👊 available🚦👡 amount🔆▫️🔙🔓🏄🏽 📉📉 of👍🏽🔫 💦💦 information that can be✈️❕🚩#⃣ 🐝👼 broadcast↖️👷🏾 in🙍🏿🈴 🚭🏡 aâ˜ğŸ¿ğŸŽ®ğŸšğŸš¥ğŸ™† certain👰🏻🙅📄 🤔 width🏠 of⛔️😡 👀👨 channel✋🏿⚓️ butğŸ‘•ğŸŒŽ 😠🍑 then….🍔 MPEG2🐴 videoğŸŽ¦ğŸŒ˜ğŸ’¹ 📽📽 coding🔩⛽️ wasğŸŽğŸ’ŠğŸ‘©ğŸ¾ğŸµ 👏✨ specified.âž°â›”ï¸ğŸ´ğŸ›€ğŸ½âœŒğŸ¾ğŸ˜§ I 👉 suspect🏯🐀 that’s🚚✊👴🏾 🏻😐 evidence🙌🏼👴🏼 📃❓ of👨🏾🏈💪🏻💏 💦💦 the👆🏽 👏 standard’s📹♨️ development 🔬 either🍂🕙👥 being📒♦️ 😯 dragged⛲️🆙 out8⃣👶🏿✅ foreverğŸ™ŽğŸ¼â“ 💗 OR🙊♨️ 💁 someone🌿 👤 just🏭 🍅☝ wanted toğŸ‘²ğŸ¼â™Žï¸ be🛀 🐝 ableğŸŽ 💪💪 to🍂 use👸😶 ⚒😂 up a♐️🗼🐶🐻 🚨🍕 bunch#⃣💻💓✌🏼🙋🏾 of 👍 DVD👼🏻🏊💡 player👊🏼🐈 💰 decoder ASICs🌔🆕🈸 they🍆🚂 👨 hadğŸ™ŽğŸ¿âœ‹ğŸ» ✊ sitting🕚💇🏽🐠 in🐄💂🏼 🅰😩 a🔺💓 Chinese🍮 😕 warehouse.ğŸŽ As 🙌 a💂🏾👊🏿 result👼🌉👆🏾👘 of🔏 👱💦 the MPEG2 encoding💙🙇🏿🍧👨‍👩‍👧 being💆🏾⬅️🏩 🙏 used,🙊🍥🚑 the🌵 💯 picture 📷🦊 looks✋🏼🔍 👀👉 like 👍 DOUBLE BUTT💆🏼👴🏻㊙️ 😥 when✌🏼 💦💕 there’s🌚👣💉 👌🍝 a🐂🍩🔐👨🏻 🅱👌 lot🔠🌐👧🔸💅🏽♍️📢 of👍🏾 🥗😰 motion,ğŸŽğŸ’„ 😐 especially🚕 when👉🏾😣 💦 you’re 🗣 running🏇🏽♥️ ♀ a💗 lot🍄 of👩 subchannels🌜🔜🙏🏾 squeezed💦 into🚦👇🏽 🏼🚟 that🏇🏽🔘👋🏼👼🏾👂🏿 💯😻 18.3👩🏻🍨🐤💉 👅👸 megabits/sec…♋️👊🏿 AndğŸŽ¯ 💰🏽 thenğŸ‘ŒğŸ»ğŸ†”ğŸƒğŸŽ®ğŸ“Š 😯 you⏪ 🌝👉 have🛅🚏🏡 👩💯 the⛔️🔩 whole👌👨‍👨‍👧‍👦🏆 godawful㊙️ thing🍃 where🍻✌🏻🙍🏼💂🏿🏉 the 🙌 CECB🚪 program🙅🏻 led🌳 to🚈☺️👶🙀 the ♨👏 cost😣 💰📲 of❓🏮 🤔 converter㊙️ boxes👼🏻 🤒🤒 which ✌❓ probablyğŸ’ƒğŸ»ğŸµğŸŒ±ğŸ™ŽğŸ¾ 😻 actuallyğŸ”ŽğŸ„ğŸ¼ğŸ“šğŸ˜½ğŸ„ğŸ¾ cost💆🏾✋🏻 aboutğŸ‘ž 🏽 $25🚨👊🏻🌋 including🚣🏃🏿🚵🏿😼 💨 hardware,👦🏿🏣👂🏼🐏 manufacturing,⏳🐐 and 👏💆 patentğŸ“Žã€°ğŸ« licensing👮🏿📢🔝 royalties being👨‍👨‍👦 fixed👨🏻🍡 right up0⃣❎ to🕣 🌒 $40….◽️😊 but🌋💛😩♉️🈹 🍑 that’s ➡ a↙️😽🏫🙇🏿 💰🍇 far📟✊🏼👍🏾 💶🌌 dumber🙍🏾📆🕓 story 📗

(this is beginning to make the WordPress editor cough up hairballs)

What even are dasdecs, seriously

Saw this picture on Twitter and well, it’s distinctly output being generated by a Digital Alert Systems / Monroe DASHECK.. I mean.. DASDEC…

wait just a minute here

Nah, there’s nothing evil about these things though, they don’t sacrifice children and they certainly aren’t in any way possessed….

Really though, this makes me wonder, I’ve known for quite a while that these things are basically just a Linux box. They have a fair amount of obfuscation because the they sell a bunch of extra options and are making at least a token effort to keep the IPAWS server keys hidden…. however it appears that they use VLC for some reason? Funky.

I’ve always wondered what the AM and FM radio cards in these things are. A nice feature they offer is the ability to go back in there and get a recording of the AM / FM monitor sources as an incoming alert was picked off them. That’s also present in the current versions of the Sage Digital Endec but the Monroe will give you one for each source, while the Sage actually only monitors one audio source at a time (the first to go active steals it and the rest are not monitored).

I dunno, EAS is just horribly cursed, and my idea of Heaven is a solid white nightclub with me as a headliner for all eternity, and they *love* me.

fnord

Current mood…

… hammering dents out of some Aero.100 audio processors the network handed down to us without proper packing for shipment

oh child
One of the better units

It’s a cute little box and works damn well when you don’t smash it to death!!

I’m so exhausted and you can stop blowing shit up now

Achtung!

seriously for the love of eris why can’t there just be a supply chain breakdown affecting only fireworks

Doooooooooooongs
That is all

All it’s missing is lorem ipsum dolor …
This shit is both wonderful and a mystery wrapped in an enigma

That Sony disk recorder will be the subject of a strange post because it’s very strange.

Be the roller rink carpet you admire

So I was looking for a picture I took a while back of an audio mixer and searched Google Photos for “mixer”. First result?

Wait a minute… That’s not a KitchenAid over that bowl!

So I figured it was a good time to reboot the ELC automation server for Good Day Sacramento and one of my coworkers has wanted to braid my hair ever since I dyed it all rainbow. Her daughters aged out of letting her braid their hair and she missed doing it… so she braided my mane while ELC juddered back to life. The result is amazing.

The shirt I’m wearing is one I drew on with glow in the dark fabric paint. I wasn’t sure at first if I liked how it came out until I saw how it looks actually worn. It just didn’t look as nice lying flat. I’m gonna have to put a blacklight up at the station somewhere for…. reasons.

Abstract circuit board design under UV light
Glowing more than this XKeys

One bad gloop and she do what I yoinky

Crooooooooow!

Ever seen a TV live truck on scene? Well, if you have, chances are you’ve noticed a thing on top that looks like the top of Crow T. Robot’s head on a tall extendable mast.

What you’re looking at is a foldable microwave dish that can be used to send video from a live shot back to a fixed receiver site that forwards it to the TV studio. At the bottom of it is a remote controlled pair of big chonky motors that let you, standing on the ground, pan or tilt the dish to get it lined up with the receive site so the station can see your live shot coming in.

 

One of ours got stuck in the up position so I needed to pull it apart and fix it and I intended to take some more pictures of the apparatus as it’s kinda cute – it has two big Bodine gear motors driving worm screw drives via little drive chains, and has limit switch cam assemblies to keep you from going past safe travel limits on the thing.

I found the issue pretty soon after figuring out how to open the weird chassis of the dish motor, which opened vaguely like a milk carton – a hinged milk carton made of sheet metal. I’ve never seen anything quite like that and have to give them points for originality, though, if you had to get in there and the dish was stuck in a position other than straight up, you’d have to disassemble the entire shebang from the sides and take the dish off and everything and eww.

Thankfully, this was stuck straight up, and Tina caught a couple pictures of me working on it after I got it open:


But then the gloop went off.

See, what happened was one of the motor brushes got stuck in the brush holder and wouldn’t advance as it wore down a little, which caused the motor to stop working open circuit. I pulled it apart and managed to get this picture before I realized….. whoops, the armature of the motor and its pressed on bearing were the only thing holding the gloop in. You can see the brush on the right still wedged back in the holder where it can’t actually touch the commutator:



The gloop I refer to is a particularly foul, stinky, sticky, syrupy sort of gear oil, almost all the way up to being a grease in viscosity, but just low enough in viscosity to allow it to make a huge mess in short order. This is the second time I’ve run into it on Bodine motors – there’s no externally visible sign of it having an oil filled gearbox, no fill/drain screw or plug, nothing. You just get a terrible surprise if you dare separate the motor from the gearbox. GLOOOOP.



A fair amount escaped and got all over everything, but there was certainly enough left in the gearbox immersing its guts that I don’t feel I need to disassemble the whole thing and try to refill it. Nah, it’s just a learning experience… AGAIN…. BEWARE THE GLOOP.

Otherwise it will get the song stuck in your head. That song never leaves…. not that it ever has to.

There’s an extended version too