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HDBaseT Supporters Hope To Kiss HDMI Goodbye

arcticstoat writes "HDMI's short-lived reign over the TV cable racks could soon be over, thanks to a new usurper that combines several connections into a standard Cat5e/6 network cable with an RJ-45 connector. Designed by a coalition of consumer electronics manufacturers called the HDBaseT Alliance, which includes Sony, Samsung, LG and Valens, HDBaseT promises to not only carry video and audio signals, but also provide a network connection, a USB signal and even electricity using a single cable. The Alliance predicts that we'll start seeing the first HDBaseT equipment creeping into the shops later this year, but says the bigger wave of adoption will occur later in 2011."

58 of 336 comments (clear)

  1. One question by elrous0 · · Score: 5, Funny

    Will Monster make a special gold-plated, oxygenated cable for it? Because the guy at Best Buy said that is only way to really hear the crispness of the digital audio.

    --
    SJW: Someone who has run out of real oppression, and has to fake it.
    1. Re:One question by roc97007 · · Score: 2, Funny

      I think his brother works over at The Good Guys.

      --
      Oliver's law of assumed responsibility: If you're seen fixing it, you will be blamed for breaking it.
    2. Re:One question by jimbolauski · · Score: 2, Informative

      You mean the cat 6m standard.

      --
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      P= W/t
      t=Money
      Money = Work/Knowledge so the less you know the more you make
    3. Re:One question by FlynnMP3 · · Score: 5, Funny

      It's not known well, but temperature and altitude affect the clarity just as much, if not more, than the cable construction methods. The colder it is the less jitter is introduced in the signal path as the molecules are not moving around so much. Closer to sea level, the predictability of the air pressure reduces the effects of signal variance. Which you can hear if your listening space is 10 degrees Celsius or cooler.

      All Best Buy audio employees know this but are bound to secrecy by Monster Cable. Probably for marketing reasons.

    4. Re:One question by unix1 · · Score: 4, Informative

      That would be funny if it wasn't true. You can get it from Amazon too.

    5. Re:One question by acedotcom · · Score: 2, Informative

      uhhh...actually they already do . I die a little inside thinking of people that buy that stuff.

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    6. Re:One question by Bakkster · · Score: 5, Insightful

      Will Monster make a special gold-plated, oxygenated cable for it?

      Of course they will. So would I, if I could manage to get through the sales speech without breaking down in hysterical laughter. Some money just deserve to be taken.

      Because they don't understand enough about the physics of digital electrical signals? I assume you expect to be taken advantage of by your mechanic/doctor/banker because you don't know enough about cars/biology/financial devices? Your money deserves to be taken, right?

      I'm of the opinion that we should be spreading information, instead of being the assholes laughing in the corner and watching Monster get richer.

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    7. Re:One question by Anonymous Coward · · Score: 2, Insightful

      If any one comment deserves to be modded to +infinity, this it is. I am so sick of the smug assholes who think everyone should be EE and/or Comp. Sci. expert, and people deserve to be taken for a ride when they are not.

    8. Re:One question by ultranova · · Score: 3, Insightful

      I assume you expect to be taken advantage of by your mechanic/doctor/banker because you don't know enough about cars/biology/financial devices?

      Why yes, I do. It's not right, but I fully expect each and every one of these persons to ignore that and screw me over. That, arguably, is the biggest problem facing our time: you can't trust people, so the separation of labour breaks down, requiring you to be an expert at everything.

      I'm of the opinion that we should be spreading information, instead of being the assholes laughing in the corner and watching Monster get richer.

      Just because there's no difference doesn't mean that an audiophile can't hear it. Seriously, expect to be blown away by the very same people who you're trying to help.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    9. Re:One question by Bakkster · · Score: 2, Insightful

      I assume you expect to be taken advantage of by your mechanic/doctor/banker because you don't know enough about cars/biology/financial devices?

      Why yes, I do. It's not right, but I fully expect each and every one of these persons to ignore that and screw me over. That, arguably, is the biggest problem facing our time: you can't trust people, so the separation of labour breaks down, requiring you to be an expert at everything.

      However, note that the GP states the money 'deserves' to be taken. I think that crosses the line from 'need to be cautious' to 'GP is an insufferable douche-bag'.

      I'm of the opinion that we should be spreading information, instead of being the assholes laughing in the corner and watching Monster get richer.

      Just because there's no difference doesn't mean that an audiophile can't hear it. Seriously, expect to be blown away by the very same people who you're trying to help.

      Unfortunately, that is true. Of course, I think the average person buying a Monster HDMI cable isn't an audiophile, they're just swayed by pretty colors and lots of stickers.

      And I think most people can be swayed by the 'but think of all the things that upgrade money could go to instead that will actually improve your sound/video quality' argument.

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    10. Re:One question by uglyduckling · · Score: 2, Interesting

      You don't need to be an EE or Comp. Sci. expert to understand that digital audio/video cables can't improve the signal quality beyond 0 data loss, you just need to have managed high school level physics. People don't necessarily 'deserve' to be taken for a ride if they can't figure this out, but bear in mind that we're talking about people with more money than sense - it's not like they're being ripped off for food, healthcare or basic transport - we're talking about luxury goods being sold to people with money to burn.

    11. Re:One question by Bakkster · · Score: 2, Insightful

      You don't need to be an EE or Comp. Sci. expert to understand that digital audio/video cables can't improve the signal quality beyond 0 data loss, you just need to have managed high school level physics.

      First of all, signal quality and data loss weren't part of my high school physics curriculum. Nor were they part of my college physics curriculum. That's because we're talking about digital signals, which are the realm of EE and CS.

      Secondly, the point is that the advertising implies that other cables don't have zero losses. Unless you understand beyond the basics of digital signals (and let's face it, that's hardly ubiquitous knowledge right now), you're vulnerable to advertisers abusing their 'air of authority'. Unless you can prove the box wrong, it's understandable to trust it (perhaps people have been desensitized by truth-in-advertising laws?).

      People don't necessarily 'deserve' to be taken for a ride if they can't figure this out, but bear in mind that we're talking about people with more money than sense - it's not like they're being ripped off for food, healthcare or basic transport - we're talking about luxury goods being sold to people with money to burn.

      These cables are pushed to anyone who will listen, not just the obscenely rich. Best Buy will sell them to someone buying a new TV, even if they don't have an HDMI device putting out HD video. This is an up-sell even for those who can't afford to spend $100 on their cables, based on the fear that their TV (which may be a rare luxury purchase, due to their budget) will not work without it.

      And as stated above, these are people with more money than knowledge, not necessarily sense. Well disguised technobabble can confuse even the best of us without background knowledge.

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    12. Re:One question by Sycraft-fu · · Score: 2, Informative

      No, monster cables are just overpriced. They actually are quite well made. There was a time when their stuff was crap, but not any more. Any Monster product I've encountered in recent years has been well built and did what it promised quite well. It just cost way more than a just as well built and functional product from someone else.

      My objection to Monster is the overcharging and marketing as though they sell you something special. Their product quality itself is fine.

    13. Re:One question by bemymonkey · · Score: 3, Informative

      It may be an analog signal, but that analog signal is carrying digital data, which is usually checksummed and/or even encrypted and subsequently decrypted. It's much more of an all-or-nothing situation than with pure analog signals... if your HDMI cable works, you've got a pretty good chance that you're getting pristine 100% digital picture and sound quality...

    14. Re:One question by jesset77 · · Score: 2, Insightful

      Look, I'm skipping the rhetorical question turned pissing match, but for real. Sometimes we simply lack the power to protect the willfully ignorant from their own naiveté, especially when they abuse us for our troubles. Then it's the best we can do to simply hope beyond hope that they'll catch on.

      --
      People willing to trade their freedom of expression for temporary entertainment deserve neither and will lose both.
    15. Re:One question by Khyber · · Score: 2, Informative

      "You're either being pedantic or wrong."

      More like technical beyond your means.

      In fact, *EVERYTHING* is based from analog waveforms. Including your very cells.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
  2. Kiss HDCP bye too? by betterunixthanunix · · Score: 5, Insightful

    Can we please kill HDCP? Please? There is no technical reason why my monitor should not be able to be connected to an HDMI-capable entertainment device by means of an HDMI-DVI adapter.

    --
    Palm trees and 8
    1. Re:Kiss HDCP bye too? by TubeSteak · · Score: 5, Informative

      Can we please kill HDCP?

      Nope.
      Searching for hdbaset + drm turns up little of use,
      but searching for hdbaset + hdmi shows us DRM has already been included

      Valens Semiconductor's HDBaseT Receives HDCP Certification From Intel's DCP LLC
      updated 8:58 a.m. ET March 9, 2009,
      http://www.valens-semi.com/media/1526/msnbc.pdf

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    2. Re:Kiss HDCP bye too? by JoelWink · · Score: 2, Interesting

      I once spent an hour trying to figure out why the DVI output from my Time Warner Cable box would appear on my computer monitor for two seconds, then disappear. I finally realized it didn't "trust" my monitor and HDCP was the culprit.

  3. HDCP by MillionthMonkey · · Score: 2, Insightful

    What's going to deny me the right to watch my own stuff whenever I'm not allowed?

    1. Re:HDCP by 19thNervousBreakdown · · Score: 5, Funny

      What on earth makes you think they're going to give up on encryption just because they're going with a connector that encourages senior citizens to plug 100W output cable boxes into their cable modems' ethernet port?

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    2. Re:HDCP by jythie · · Score: 4, Interesting

      This is why I need mod points.

      Years ago I worked on jukeboxes that had RJ45 based audio connections.... oh the network cards we blew out when those cables got crossed.. and we were actually TRYING not to mix them up.

    3. Re:HDCP by commodore64_love · · Score: 2, Informative

      >>>Current cannot be "pushed". A device presents a load on an electrical circuit and will DRAW a certain amount of current depending on that load.

      Hello. Electrical engineer here. What you just said is complete rubbish. A device does not "draw" current like a sucking vacuum. If devices could do that, we would not need power supplies or batteries. The devices would just draw the current from thin ain. The current is indeed "pushed" and the amount of push is called the voltage (measured across the terminals of the power supply or battery).

      How you can have the audacity to correct someone who used the word "push", when said person was 100% correct is beyond me. What an anal-retentive asshole you must be. Like that guy Cliff Clavin on Cheers.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
  4. Re:Damn it by MillionthMonkey · · Score: 4, Funny

    Use them to tie stuff down in your truck.

  5. Wait... by Pojut · · Score: 4, Informative

    FTFS:

    thanks to a new usurper that combines several connections into a standard Cat5e/6 network cable with an RJ-45 connector

    Does that mean I can use one of the dozens of ethernet cables currently languishing in my closets?

    1. Re:Wait... by ZERO1ZERO · · Score: 4, Interesting

      And subsequently route the signal via patch panels / wall plates to various locations around your basement/home/place of work?*

    2. Re:Wait... by Pojut · · Score: 2, Funny

      The possibilities are giving me a happy in my pants. Seriously. If this is the case, awesome things could be coming soon.

      Side note: is it lame that I get happy in my pants over this kind of stuff? ::looks around:: nah.

    3. Re:Wait... by Walt+Dismal · · Score: 4, Interesting
      The short answer is I expect no, but here's the long answer why.

      A Cat5/6 cable has multiple twisted pairs. To reduce inter-signal interference, the pairs are made with different twist rates per foot. This results in slight distance differences between pairs resulting in up to 50 foot length difference internally per 1000 feet. Now, since standard video such as VGA or component video is usually separated into RBG and (maybe) sync lines, the cable length differences result in delay of one or more of the analog video signals relative to each other and this shows up as actual and visible color fringing with a normal cable. (I've seen it.) The solution is that conventional video over Cat5/6 requires active electronics (some vendors use delay lines but those are hard to time-adjust and it locks you to a known cable vendor/mfg spec) to support clean video. This raises the cost. My basis for this is that I'm involved in video conferencing systems, some using long-run video cable in a building as well as packet-based video for external destinations. If HDBaseT involves manufacturers shifting to packet-based video, it's going to be a very interesting different world, because this will require devices on each end to use codecs and video to/from packets, raising costs for consumer electronics.

    4. Re:Wait... by Anonymous Coward · · Score: 2, Interesting

      I disagree. for digital signaling, HDMI wasn't really a good idea. It uses 2 level signaling. This is wonderful for cheap, on-pcb and short range transmission. But for anything else it just isn't a good choice. This is why 1000BASE-T won out over 1000BASE-TX. BASE-T used 4 lanes at half the rate and needed some clever circuity compared to BASE-TX's 2-in 2-out scheme that needed special cabling.

      as for deskew, for digital systems its trivial. if you have a PCIe video card you have it already. Its simple channel bonding -- each lane is buffered for a few data words. occasionally, a bonding symbol is transmitted on all channels at the same time. the reciever looks for these, and aligns the data.

      compared to the requirements for decoding video, its quite cheap. Likewise, once the market moves from a niche market to mainstream, you see the costs drop to the floor.

  6. There comes a point... by ICLKennyG · · Score: 5, Insightful

    I would tag this as a sudden break out of common sense, but I am not sure that it is. Yes, it's better in that I will be able to terminate my own video cables again, but how many cable standards do we need? I fully welcome our new Cat5e overlords but I just want the madness to stop.

  7. Aaaarrg by Cylix · · Score: 4, Interesting

    I'm rather divided on this particular bit of news.

    I'm invested in the HDMI technology already and I don't really want to replace everything. With the HDMI 1.4 spec they will address most of the current issues with the technology and provide backward compatibility with the existing devices on the market. HDMI 1.3 kinda sucks if you have an AV receiver and 5.1 setup. (Long story short video processor creates delay and without an auto-sync setup there will be issues with video and audio). This is all made possible because of the requirement for a protected path and downgraded audio on analog ports!

    In theory HDMI 1.4 provides a built in protected return audio path, networking, power and a kitchen sink. Regardless, it is rather unimportant to me at this juncture because I doubt I will be upgrading my television and receiver in the near future.

    The entire HDBaseT looks like they did mostly the same offerings but in an entirely new cable
    which has been around for ages. I get the feeling that actually plugging the cable into a switch won't do much good.

    I'm going to assume that in the end they really just get around some royalties and introduce even further market fragmentation.

    Good jorb!

    --
    "You should always go to other people's funerals; otherwise, they won't come to yours." -- Yogi Berra
    1. Re:Aaaarrg by Sporkinum · · Score: 2, Funny

      That's what I was going to say. I love watching TV/DVDs on my free craig's list acquired 60" non HD analogue TV. No encryption problems there!

      --
      "He's lost in a 'floyd hole"
    2. Re:Aaaarrg by spire3661 · · Score: 2, Informative

      You can do that now. They make wall plate adapters, amplifiers to run HDMI over 2 stands of Cat5/6 From Wikipedia: HDMI extenders that are based on dual Category 5/Category 6 cable can extend HDMI to 250 meters (820 ft.), while HDMI extenders based on optical fiber can extend HDMI to 300 meters (980 ft.).

      --
      Good-bye
  8. I don't like network connectors by hkmwbz · · Score: 4, Interesting
    Maybe I've just had bad luck, but the little pin that is supposed to keep the network cable in place always breaks on me. And when it does, the cable never seems to sit as tightly as it should.

    Am I doing something wrong, or does everyone else have similar experiences? If it's the latter, using it as the connector for this new thing sounds like a terrible idea.

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    1. Re:I don't like network connectors by Paul+Rose · · Score: 2, Informative

      >> Am I doing something wrong Maybe. For me these break when I'm too lazy to properly detangle a pile of wiring, and I resort to pulling the cable out of the pile. The connector goes through backwards and often damages the retainer. I've never had one get damaged any other way.

    2. Re:I don't like network connectors by I'm+not+really+here · · Score: 3, Informative

      Get / make cables that have the "boots" on them. (Search for Cat5e booted ends to see what I mean).

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    3. Re:I don't like network connectors by holmstar · · Score: 2, Interesting

      I hate those boots. They inevitably get hard and make depressing the retaining clip difficult. If you have to use one of those in a place with little finger room, good luck getting it out without a flat-head screwdriver or something.

  9. Light Peak by TempeNerd · · Score: 4, Informative

    And let the battle for a new standard begin.

    I had thought Light Peak was the likely replacement technology.

    10Gbps and backward compatible with USB.

    "At 10Gb/s, you could transfer a full-length Blu-Ray movie in less than 30 seconds. Optical technology also allows for smaller connectors and longer, thinner, and more flexible cables than currently possible. Light Peak also has the ability to run multiple protocols simultaneously over a single cable, enabling the technology to connect devices such as peripherals, displays, disk drives, docking stations, and more."

    http://techresearch.intel.com/articles/None/1813.htm

    1. Re:Light Peak by fuzzyfuzzyfungus · · Score: 2, Informative

      I still want to know what Intel has up their sleeve with light peak.

      10Gb/s over fiber isn't new or all that interesting; but, in the networking world, it isn't all that cheap. What have they done to make the equivalent of shoving a 10GbE fiber interface into random bits of cheap consumer electronics remotely viable?

      Second, while neither optical cables nor optical connectors are quite in "will die if you give them a funny look" territory, they definitely won't stand up to the kind of abuse that even ghastly quality copper will, never mind being rolled over by chairs and filled with pocket fuzz. What do they have in mind?

  10. RJ45 bad idea by Darkness404 · · Score: 2, Insightful

    Its -always- a bad idea to keep different cables with the same connector. Good luck getting the average person to know the difference between all of the cables with the same connectors.

    --
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  11. Re:The reason you can't connect your monitor by tepples · · Score: 4, Insightful

    Yes, there is a technical reason your monitor can't be connected to your entertainment device... Your monitor doesn't support HDCP decoding.

    Then what's the technical reason to require HDCP in the first place?

  12. Haven't we learned anything from PS/2 connectors? by Burning1 · · Score: 4, Insightful

    Haven't we learned anything from PS/2 connectors? Installing ports that are physically, but not electronically compatible on consumer devices is a stupid solution.

    Given that a lot of receivers and devices currently have built in Ethernet ports for network connectivity, I can't see this as being a particularly good idea... It's not as if hard wired Ethernet ports are common in residential walls...

  13. for those wondering when by nimbius · · Score: 3, Insightful

    this madness will end with new standards, it wont. The connector standard has become as much a marketing phenomenon as it has a control of the customers choice of provider and repeat purchase options. Just take a look at cellphone power connectors as a prime example. or for us old farts, i can simply whisper betamax and we're all sent running for cover. The easiest thing to do in light of all these changes is wait a few years for the price to drop substantially, and upgrade components as needed. yeah, i still have VGA for my monitor, and composite or svid for my video. things that need to go a long distance get baluns or repeaters.

    at the risk of getting the troll stamp, you could go so far as to say the entire HDMI standard and its accompanying 720p/i 1080p/i standards are complete poppycock. computer monitors have had resolution superior to these standards for years before their inception.

    --
    Good people go to bed earlier.
    1. Re:for those wondering when by srleffler · · Score: 3, Informative

      Actually the cellphone makers agreed to standardize their power connectors a few months ago, at least in Europe. All smartphones will have a common power connector, and you'll be able to use any power supply. Eventually, phones won't come with a power supply, you'll just keep using the old one. I believe the new standard is one of the small USB connectors.

  14. MPAA doesn't want you doing long runs by tepples · · Score: 3, Insightful

    The proper solution was to go to fiber. They could do long runs

    The major U.S. motion picture distributors don't want you to do long runs. You could be doing runs to a nonsubscriber's house or doing long runs through a building that is large enough for a commercial public performance. That's why HDCP requires proximity.

  15. Dennon Link is Vastly Superior by Khue · · Score: 2, Funny

    And it's old technology... read comments to appreciate: http://www.amazon.com/Denon-AKDL1-Dedicated-Link-Cable/dp/B000I1X6PM

  16. Re:Haven't we learned anything from PS/2 connector by Nadaka · · Score: 2, Insightful

    Hopefully anything using this connector will poll the other side of the cable for its capabilities before it starts dumping 100w of power out the other end. Similar occurs with current systems using PoE and detection of 10M, 100M or 1G network speeds.

    This is actually something I am very much looking forwards to. It can cut down on the expense and hassle of a half dozen different cable types. Cat5e/Cat6 is fairly cheap compared to a lot of cable types and can be custom fit.

    Imagine a monitor with this and the following features:
    1 cable to the computer, 0 cables to the outlet.
    A built in USB hub for your memory stick/mouse/keyboard/webcam/etc.

    Think of how much clutter you can save and how much more freedom you have in placing your workstation in relation to your cpu.

  17. This makes sense by steveha · · Score: 2, Insightful

    Remember how parallel ATA was replaced by serial ATA? Despite fewer wires, it can handle more data, because it's easier to push a serial protocol at a very high clock rate than to get a bunch of wires to synchronize perfectly at a high clock rate. And crosstalk between signal wires is a serious issue; check a parallel ATA cable sometime and notice how many ground wires it has. (To use the fastest parallel ATA modes, you must use an 80-wire cable, and over half of those 80 wires are ground wires, just to guard against crosstalk.)

    So I found it surprising that HDMI was a parallel cable spec! And I do not find it surprising at all that this new standard will be a very high clock rate serial protocol over standard Ethernet cabling.

    Note that this came out of industry, and not out of an ivory-tower standards group.

    steveha

    --
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  18. Re:They missed again by cheesybagel · · Score: 2, Informative

    Like Light Peak? Maybe the video interface after this one.

    Seriously, obsolescence is getting ridiculous. It used to be you could use the same video interface for a couple of decades. Heck a TV could easily last a decade or more.

    Now everything gets obsolete quickly. Plasma? LCD? Perhaps OLED next? Crikey.

  19. Re:It's all just a money grab... by yogidog98 · · Score: 2, Funny

    Not a whiny 15 year old;I have a good understanding of intellectual property law and a couple of patents to my name. What I lack is a sense of humor good enough to write a comment funny enough to be modded up.

  20. 10.2 Gb/s? by Animats · · Score: 3, Informative

    The spec claims that this approach can pump 10.2Gb/s over unshielded twisted pair. So this is really 10Gb/s "Ethernet" technology.

    But only in one direction. Like ADSL, it's high-bandwidth only from the "content source". Video travels only in one direction; the reverse direction is 100Mb/s Ethernet packets.

    They don't propose to power displays via this cable. The idea is to power disk players, cable boxes and such from the big-screen display. Control them from there, too. "PC-based media servers are no longer required and CE devices are once again the emperors of the living room." If they can get the inter-device control issues figured out (something the consumer device people have a history of botching), that could accelerate acceptance.

  21. No kidding by Sycraft-fu · · Score: 5, Informative

    Because, here's a shocker for many smug "I know everything," geek types: Cable quality DOES make a difference! When you start talking extremely high bandwidth signals, like you are talking with HDMI especially the "beyond HD" stuff you are talking some tight tolerances that are needed. This is even more true when using smaller cable for longer runs (you can solve a number of problems simply by throwing copper at it and using larger cables). So you may well find that a cable that worked just fine for an old 720p TV doesn't work at all, or has sparkles and dropouts when you hook it up to a 1080p 120Hz connection. Suddenly your bandwidth is beyond its capabilities.

    So you can't just say "Ha! Cables don't matter! Anything works fine!" because that's false. As we do higher and higher bandwidth stuff, cable tolerances become more and more important. That's why you can have Cat-3/5/5e/6/6a cables all of which look fundamentally the same, yet have drastically different performance. They are all 4 pairs of unshielded twisted wire. However Cat-3 is good for maybe 16MHz whereas Cat-6a is good to 500MHz. Why? Much, MUCH tighter tolerances and specs.

    So cable quality DOES matter as people can find out, but then there are assholes like Monster that rip people off with it.

    1. Re:No kidding by Bakkster · · Score: 3, Informative

      So cable quality DOES matter as people can find out, but then there are assholes like Monster that rip people off with it.

      Right, but only to a point. Once worst-case noise and signal loss are below the threshold for proper reception at operating conditions, no further improvement can be gained (except perhaps to further shield from harsh environments not typically found in a living room).

      There may be cables that fail to meet specifications, but vastly surpassing those specifications (which is the problem here) provides no improvement to signal integrity. As an Electrical Engineer by training and trade, one of the first things I learned is that surpassing specifications in digital systems (beyond the safety margin) gains nothing.

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    2. Re:No kidding by commodore64_love · · Score: 3, Insightful

      Not really. If you have a copper cable that works just fine transferring the HD signal from your Bluray to your TV, then that's all you need. Going out and buying a $100 gold-plated cable will not make digital bits any more "bittier". 1s and 0s are 1s and 0s, and you will see no improvement.

      --
      "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
    3. Re:No kidding by Miamicanes · · Score: 5, Informative

      There's one tiny detail that throws a monkey wrench into just about *everyone's* understanding: a disturbingly large percentage of recent-vintage low-cost cable from China has been made using "copper-coated steel" (CCS) and NOT pure copper.

      CCS has been used for years as the center conductor in 75-ohm coax, but its appearance in things like network cable alleged to be "cat5e" is a VERY recent phenomenon (as in, even 2 or 3 years ago, it was basically unheard of). When you throw CCS into the cable equation, everything you know about cable based upon past experience and external observances goes to hell. For the most part, it's safe to say that CCS does absolutely nothing GOOD for applications like ethernet, and has plenty of potential to do really bad things to it. I'd be shocked if the CCS cable pawned off as "cat5e" on eBay (and quite a few discount vendors online) would meet official cat5e specifications at a HUNDRED feet, let alone a thousand or more. Worst of all, unless you're making a point of watching out for CCS network cable, it actually looks BETTER upon casual inspection than decent pure-copper cable, because the wires are thicker. The problem is, the steel core does nothing for the signal, so you're basically trading a hair-thin AWG26 copper wire for a micron-thick hollow tube of copper electroplated onto a strand of steel wire, and using it in a scenario where the conductivity difference really, truly DOES matter.

      Don't believe me? Go to eBay and search for "cat5e CCS" (sans quotes), checking the box to search the description as well. You'll find at least a page of results, and when you read the descriptions, you'll see that they most certainly ARE "CCS".

      I'm not 100% sure, but I think the reason it's halfway-legal to sell CCS UTP cable as "cat5e Cable" is because (in America, at least), "cat5e" only has specific legal meaning if you use it in conjunction with "TIA/EIA-568-B", or make specific claims about its suitability for network use at a given speed and/or length. As long as you claim nothing beyond "AWG24 Cat5e Cable", you could probably get away with just about anything capable of conducting electricity and 4 twisted pairs of wire.

      Anyway, beware. CCS "cat5e" cable is real, and is a growing problem unless you make a point of trying to avoid buying it.

  22. But at what level? by Sycraft-fu · · Score: 3, Informative

    Depending on what you are doing, it takes more bandwidth. 720p video at 60fps takes much less bandwidth than 1080p video at 120fps. So a cable that works for the lower signal may not work for the more intense one.

    Now for short runs, this is generally not a problem. At 2 meters pretty much any cable will do the trick. However longer runs this becomes a real consideration. It becomes even more of a problem if you want a thin cable. The nice thin HDMI cables are 28 AWG wire. However getting a high bandwidth signal over that at a distance can be a problem and require a cable of superior construction. Belden makes such a cable (sold through Bluejeans) that will get you more bandwdith at longer range over a smaller wire gauge.

    As an analogy you might be more familiar with, take GigE over Cat-5. It works just fine for many people. There are plenty of NICs and switches that say Cat-5 is fine. However, according to the spec, it isn't. You need Cat-5e. So what's up? Well, with a short run, it just isn't such a big deal. The lower tolerances of Cat-5 are fine. However if you try and do a 100m run, and try and do it near a bunch of other cables and so on you may find that it no longer works. You may even have a situation where you sync at a gig, but it doesn't give you good speed because there are bit errors.

    There are in fact certifiers for this purpose from people like JDSU and Fluke. They check the analogue response of the cable and do a bit error test to see if it really is up to spec, or if there are problems. When you run your own cables at a good length, as we do at work, you want one of those.

    Same shit with HDMI but even worse, as there aren't any length specs. You can make an HDMI cable as long as you like. Question is, will it work for the kind of video you want? Also will it work for the kind of video you'll want later?

    Quality DOES matter in some situations. However quality means "Tight tolerances," not "Brand name and shiny connectors." So you get people like Monster ripping folks off. It is actually fairly technical to learn about all the details, and forget about testing your cables, HDMI testers are off the charts expensive.

  23. Re:The reason you can't connect your monitor by wirehead_rick · · Score: 2, Interesting

    Agreed.

    But with control on both sides of the digital cable and with Mafiaa controlling HDCP certificates over time they can slowly reduce what can and can't be seen. They simply will have the control.

    Just because that control doesn't exist today (or they are playing nice today) doesn't mean the bait and switch isn't lying in waiting. They could easily let you see word documents and prevent SW from playing non HDCP video (similar to iTunes DRM) in the future.

    It's also why blu-ray players have to be internet capable. So they can do the bait and switch there too. It's all in the plans.

    Will it happen? Maybe not.

    But I believe it is why Mafiaa makes such a big deal about HDCP and why it exists in the first place. They saw the proliferation of high quality audio technology and wanted to get HDCP in with the intent of doing a bait and switch . . . someday.

    HDCP doesn't make much sense otherwise.

    --
    -- Mean People Suck
  24. Re:The reason you can't connect your monitor by my+$anity++0 · · Score: 2, Informative

    Not to diminsh your point at all, but the missing episodes were mostly Doctor #1 (William Hartnell) and #2 (Patrick Troughton). Doctor #3 (Jon Pertwee) had some missing episodes in his first season (and perhaps later), but they were all recovered, albeit some restored from black and white copies. The Missing Episodes are such a disappointment to every Whovian. Apologies if this is off-topic, but I would like to inform about Who history.