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Thread: RFI shielded Computer Case

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  1. #11

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    Quote Originally Posted by KA9JLM View Post
    If the computer was sold then it meets some cert for RFI Generation, and has Metal shielding.

    It is better to fix the source of the RFI then to Fix the problems that it causes.

    Devices connected to a computer are the biggest problem for Generating and picking up RF, no question.
    .
    And you are assuming that everyone buys a "ready made" computer, and no hams build their own? The FCC certificate on a motherboard is meaningless if the case offers insufficient shielding.

  2. #12
    Join Date
    Jan 2011
    Location
    Houston Texas
    Posts
    3,268

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    Quote Originally Posted by WA9SVD View Post
    And you are assuming that everyone buys a "ready made" computer, and no hams build their own? The FCC certificate on a motherboard is meaningless if the case offers insufficient shielding.

    If You buy a case that is not type accepted then you are buying junk.
    "Books tell how it should be, Experience tells how it really is..."
    73 DE KA9JLM Don

  3. #13

    Default

    Quote Originally Posted by KA9JLM View Post
    If You buy a case that is not type accepted then you are buying junk.
    Even type accepted cases can be "junk." And may not prevent interference.

  4. #14
    Join Date
    Apr 2001
    Location
    Colorado
    Posts
    663

    Default

    Or you could get one of these and be TEMPEST/1-92, Level I compliant, just in case your neighbors are trying to snoop on you.

    http://www.emcon.com/products/20-16RUCabinet.pdf

    But, as soon as your hook up your Unshielded Twisted Pair Ethernet cable (and monitor, keyboard, mouse, etc.) all bets are off.

    Steve
    These are my opinions and only my opinions, unless you share them as well, which would make them our opinions, but I am not of the opinion that I can express your opinion as my opinion without your prior expression of said opinion, and then my re-utterance of that opinion would, in my opinion, be foolish unless I were expressing agreement to your opinion, and then it wouldn't be my opinion but your opinion to which I only agree.

  5. #15
    Join Date
    Jan 2011
    Location
    Houston Texas
    Posts
    3,268

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    Quote Originally Posted by KV6O View Post
    Or you could get one of these and be TEMPEST/1-92, Level I compliant, just in case your neighbors are trying to snoop on you.

    http://www.emcon.com/products/20-16RUCabinet.pdf

    But, as soon as your hook up your Unshielded Twisted Pair Ethernet cable (and monitor, keyboard, mouse, etc.) all bets are off.

    Steve

    Very Nice...
    "Books tell how it should be, Experience tells how it really is..."
    73 DE KA9JLM Don

  6. #16
    Join Date
    Mar 2003
    Location
    Blanchard, LA.
    Posts
    842

    Cool "Thanks for the suggestions, ahead of time, LOL!

    Gentlemen,

    Thanks for all your suggestions. I don't seem to have any rf ingress from the computer to the
    Icom 706 MarkII-G. That may be due to the 60% nerve deafness in both ears, LOL! But, I'm
    looking for a full tower case and it will be on the floor, yet away from rig. I'll have an IR mouse
    and keyboard, so I won't need those extender cords, but I will put on the ferrite cores to
    make double sure that it it's protected.

    I'm looking for a quad-core processor on the board with on-board sound and video. I hope to
    have back-up audio and video boards to install as well. If possible, I'd like as much RAM that
    will go in the slots, which should make Linux =scream when it runs, LOL!

    On the tower case, I don't want any clear plastic side to see into the computer. To me, it just
    opens up a case of snakes for rf to get through. I'll need to put a lot of fans to blow out or in
    to keep the innards cool so they operate better. Water or freon cooled cases are way to
    expensive and I don't know how to set them up. LOL!

    As soon as I can, the wife said I could use her old Sony Viao desktop. I'll need to put an
    "after-market" power supply in it as the original 'went NORTH' on me. I think it has 512
    megs of RAM, so it should run LINUX very well, but a bit slow. When I get the 'tower'
    built the Sony will become a 'firewall' with Bastille Linux on it and the tower and my wife's
    new, wireless, laptop plugged into it. MY AVG 2012 ran out of subscription, so I switched
    to ClamWin.

    Well, it's 2:15 PM (1915 Z) and time for my Sunday nap. Enjoy the day, I know I have.

    GOD BLESS,
    73,

    Don/KA5LQJ
    Last edited by KA5LQJ; 04-22-2012 at 07:19 PM.

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