• Richard (unregistered)

    But it should work I'd have thought - picking up the radio signals on the outside of the cable shield depending on what else it's connected to and where. Maybe not an ideal match, but for receiving that's not so critical. If each computer brings the shield to earth it would reduce the usefulness a bit.

    Now if we could try it for transmitting....... ;-) Only joking - really!! would be a very bad idea.

    Of course everything's twisted pair nowadays. Still, a common mode RF signal should be present for receive if you can get it without disturbing the network traffic. I wonder if you could do it by winding a couple of turns of the twisted pair onto a ferrite ring and coupling it into another wire.

  • (cs)

    Specificity clearly wasn't one of the caller's strengths.

    This sentence is malformed and doesn't flow well.

  • Richard (M0RJC) (unregistered) in reply to Richard

    If I'm seen at work with a ferrite ring and a radio receiver - you know why. Theory says it should not interfere with the network because the magnetic fields from the differential mode signals cancel out so do not induce a field in the ferrite.

    I've found in my engineering degree that the simplified equations for these things are sometimes too simplified. Still, we use ferrites for RF suppression on all sorts of things on this basis. My proposal is just to add a secondary winding to pick up the otherwise unwanted signal.

    Theoretically, twisted pair should not radiate the network signal. The amount of "hash" in a building with a computer network is huge, sometimes making life difficult for people using radios for things like public events if those radios are in an effected frequency range. Other sources of that interference could be the PCs themselves though.

  • rew (unregistered)

    When I was young, I worked at the university for a while. I was good at what I did, and left keeping the network running to the networking guy....

    One day, my workstation's network stopped working. So I dove under the desk, fiddled with the connectors a bit, and decided to ask the networking guy to come fix it. So I did the oldfashioned thing, and walked over to his office. By the time I got there, the phone was red hot.... I decided my problem wasn't as important as all those phone calls, and went back to my office to do some work offline....

    It took me 10 minutes, and the networking guy coming close with his spare terminator before I realized I had unplugged the ethernet behind my computer and left it like that while walking over to his desk.......

  • Shea (unregistered)

    I've used this kind of network and the network described violates what they call the "5-4-3-2-1" rule. It goes something like this:

    5 network segments 4 repeaters maximum 3 segments populated maximum 2 terminators per segment 1 ground

    6 populated segments by itself will lead to such a nightmare. Running 40-50 computers on such a setup results in weekly outages, so I do believe his report on how often they had a problem with a network of this size... thicknet and thinnet were terrible technologies, and "fully half duplex" with collision storms!

    Also, it took a lot less than an antenna to take these down. Rolly chairs would do the trick too. :)

    Shea

  • zerocon (unregistered) in reply to MetaMan
    MetaMan:
    Just ask yourself, what would Jessica Simpson and Megan Fox do in a situation like this?

    Strip to their underwear and fill the building with foam, of course. Like any ullamcorper would.

  • zerocon (unregistered) in reply to Zor
    Zor:
    Worse, the mess had extended onto the floor under her desk, which is why it was the only desk that Dario hadn't given a thorough check previously. The blight cloud that surrounded her desk was why Dario had given it the least thorough check before.
    Maybe I missed something, but why didn't he check Helga's desk earlier?
    Yeah, and howcome the cleaning crew didn't clean under the desk?
  • (cs) in reply to Name goes here

    I did something similar in 1987, when I worked in a converted warehouse that blocked my otherwise functional radio's antenna. Didn't take the whole network down when I did it, though.

  • theamoeba (unregistered)

    The real WTF is: why wasn't he using a multimeter to check the impedance of the cable. You measure at each T connector for 50 Ohms from the start of the segment going out. As soon as you get one that isn't 50 Ohms, there's your problem.

    Aha Thinnet, good riddance to a poor topology. Token Rink got a bad rap, but the daisy chain topologies were crap.

  • fakk (unregistered)

    so fake

  • anomonyous (unregistered) in reply to Anonymous Coward

    it was the department of redundancy department.

  • william (unregistered) in reply to theamoeba
    theamoeba:
    The real WTF is: why wasn't he using a multimeter to check the impedance of the cable. You measure at each T connector for 50 Ohms from the start of the segment going out. As soon as you get one that isn't 50 Ohms, there's your problem.

    Aha Thinnet, good riddance to a poor topology. Token Rink got a bad rap, but the daisy chain topologies were crap.

    if one terminator is out yes it will be 50 ohms however if the wire is ok the resistance should be about 25 ohms with both terminators each end and measuring across an NIC T connector output

  • Jonas (unregistered)
    It was her fault. Hahahahaha!!!

    Actually, it was her colleague's fault: he was the dude who did the wiring trick. He should have said "buy a new antenna (or radio)" instead of sabotaging the network.

    Completely unrelated, in my at-work fitness center, we use an old mouse as an antenna extension. I hope no one minds :)

  • Lineswine (unregistered) in reply to Mitur Binesderti

    [quote user="Mitur Binesderti"][quote user="Mitur Binesderti"]...

    ...is now blaming the users when his poor cabling breaks! Wow.[/quote] It didn't just "break", it was deliberately messed with by a retarded beancounter & a fat, messy woman. Get your facts right. (I hate gotshite Lusers, who try to blame everyone else for their own farkups)

  • AdT (unregistered) in reply to pink_fairy
    pink_fairy:
    Which makes me, I guess, the only person I know who's ever installed a Schwarzernegg.

    That's probably because, according to the almighty Google, you're the only one in the World who believes that a thing called a "Schwarzernegg" exists.

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