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Thread: power supplies with minimal radio interferance?

  1. #281
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    Yeah right, your sarcasm at the end clearly shows that...
    And I meant it. If I hurt you in some way, which your reply suggested, I am truly sorry!

  2. #282
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    Quote Originally Posted by Carlo201983 View Post
    What do you think of the graphite spray?
    Mickz ??

  3. #283
    Maximum Bitrate Mickz's Avatar
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    Hi Carlo, I've never used it but graphite would likely be resistive and therefore unsuitable of this application.
    GA-Z77N-WIFI, i5-2400S, 8GB, Intel 520 128GB SSD, M4-ATX Modified, 2 Rev Cams, 2 Web Cams
    8" 16:9 TRANSFLECTIVE, Win8-64, Dual GPS RX and Garmin PC + Odyssey Nav, FM-DAB+, BB-Rec
    T-Screen HVAC control, custom microcontrollers, code and FE. CarPC Project

  4. #284
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    Quote Originally Posted by Mickz View Post
    Hi Carlo, I've never used it but graphite would likely be resistive and therefore unsuitable of this application.
    Hi Mickz,
    ok then do the wooden box and do within a cage of steel sheet 0.5 obviously all connected to ground. but if after all this rigmarole still not solve. I do? abandon this project? may find useful the hardware I used in car PC?

  5. #285
    Maximum Bitrate Mickz's Avatar
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    Quote Originally Posted by Carlo201983 View Post
    Hi Mickz,
    ok then do the wooden box and do within a cage of steel sheet 0.5 obviously all connected to ground. but if after all this rigmarole still not solve. I do? abandon this project? may find useful the hardware I used in car PC?
    You really don't have to do this if the PC works with no interference when connected a standard mains ATX power supply.

    The M4 in that small enclosure you made should be as noise free as a standard mains powered supply. The top and bottom lids may be causing a problem.

    BTW Aluminium not steel.
    GA-Z77N-WIFI, i5-2400S, 8GB, Intel 520 128GB SSD, M4-ATX Modified, 2 Rev Cams, 2 Web Cams
    8" 16:9 TRANSFLECTIVE, Win8-64, Dual GPS RX and Garmin PC + Odyssey Nav, FM-DAB+, BB-Rec
    T-Screen HVAC control, custom microcontrollers, code and FE. CarPC Project

  6. #286
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    Quote Originally Posted by Mickz View Post
    You really don't have to do this if the PC works with no interference when connected a standard mains ATX power supply.

    The M4 in that small enclosure you made should be as noise free as a standard mains powered supply. The top and bottom lids may be causing a problem.

    BTW Aluminium not steel.
    I'm sorry but the houses of the PC are not made of steel sheet? the allumimio and I was told that in rf fencing little. I repeat once again the m4 fed alone (without a computer) drive does not generate any problem.


    EDIT:
    I found out where the problem lies. Pratically LCD on, disconnecting the VGA cable from the MB the problem disappears. MickZ you think the problem is in the LCD or VGA onboard the MB. ?
    Last edited by Carlo201983; 02-09-2014 at 02:13 PM.

  7. #287
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    ok guys since there is no solution. finally abandoned the car PC. return to the stability of the double din. at least there although there are limitations it all works without interference. thank you all. hello

  8. #288
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    Another possible feed thru cap?

    On the subject of pass thru caps how would this one be
    http://www.digikey.com/product-detai...166-ND/2079740
    No funky soldering or need for the double sided circuit board
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  9. #289
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    Will this capacitor be better and easier to use?

    Wondering if this capacitor would be easier to use.
    Digi-Key Part Number 410-1166-ND
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  10. #290
    Maximum Bitrate Mickz's Avatar
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    Quote Originally Posted by Carlo201983 View Post
    EDIT: I found out where the problem lies. Pratically LCD on, disconnecting the VGA cable from the MB the problem disappears. MickZ you think the problem is in the LCD or VGA onboard the MB. ?
    I did not see the edit you made and since you have gone back to a standard DIN solution it's not much use answering but.

    It's not uncommon for the VGA cable, LCD or even refresh rate or screen resolution (set in windows) to cause a problem in some installations. I found some cause a problem if the refresh rate is above 59Hz or 60Hz.
    GA-Z77N-WIFI, i5-2400S, 8GB, Intel 520 128GB SSD, M4-ATX Modified, 2 Rev Cams, 2 Web Cams
    8" 16:9 TRANSFLECTIVE, Win8-64, Dual GPS RX and Garmin PC + Odyssey Nav, FM-DAB+, BB-Rec
    T-Screen HVAC control, custom microcontrollers, code and FE. CarPC Project

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