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TV signal interference?

Seven193Seven193 Posts: 1,146
edited April 2019 in Technical Help (nuts n bolts)

Just wondering if anyone has experience this and did anything about it.  I have one GeForce 1080 installed, and whenever I start rendering in Daz Studio, my TV goes on the blitz.  The channel signal goes in and out.  It's OTA, and not cable.

Post edited by Seven193 on

Comments

  • nonesuch00nonesuch00 Posts: 18,781

    More likely the current drawn by your computer is the cause of the weakened TV signal. The overall balance of the inductance of electricity flow in your home's circuits changes when you render and that interferes with the before hand helped TV signal.

    I used to program serial trunking protocols and when we ran the modem cables through many feet of walls (those modem cables where expensive junk that was supposed to be shielded but wasn't) the electric current flow in the actual building electrical circuits wiring would sporadically interfere with the serial trunking signal and make the telephone call drop. However if we replaced those poor quality modem cables with modem cables you could buy at any store the electro-magnetic inductance ruining the serial trunking protocol signal went away!

    So I think it is not inductance from your video card but a change in inductance from your electrical wiring nearest the TV. Well, unless you video card is very near the TV too.

  • WandWWandW Posts: 2,901

    A GeForce 1080 draws about 200 wattts, which is less than 2 Amps (here in the states), and if your machine draws 800 Watts total, that's a little over six amps, so unless you have a LOT on that circuit (you likely would be popping the breaker from time to time), I'm skeptical that it's power draw causing it; an easy way to check would be to try them on different circuits.  My first guess would be a bad ground.... 

  • WendyLuvsCatzWendyLuvsCatz Posts: 40,337

    unless your computer is giving out some sort of radio frequency signal, does it have a peripheral for linking to media devices in the house? just a thought

  • Ghosty12Ghosty12 Posts: 2,080

    The other is if the signal is digital then there can be interference if the antenna cable is not special digital cable as digital cable has extra shielding to deal with electronic interference..

  • nonesuch00nonesuch00 Posts: 18,781
    edited July 2017

    Our technical equipment guy used to argue the wiring in the wall wasn't causing the interference with those cheap fake unshielded cables he was giving me but I demonstrated to him that they were. Those signs warning people wearing pacemakers exists for good reason!

    So no, I wouldn't be skeptical at all. It's not like it takes a lot of inductance to create a magnetic field that inferences with a television or radio signal.

    Post edited by nonesuch00 on
  • JamesJABJamesJAB Posts: 1,766

    You might want to try getting a filtered surge protector for your computer.  This should filter out any electrical noise going into and out of your computer over the power line.

  • Ghosty12Ghosty12 Posts: 2,080

    The one thing is that a digital tv signal is very susceptable to electronic intereference more so than the old analogue tv signal.. In that you could still watch the channel under the old analogue tv signal..

  • ToborTobor Posts: 2,300
    edited July 2017

    Your card just happens to be producing a harmonic close to the channel your wireless router is set to. It's not uncommon. Try changing the channel in the router setup. 

    Reread your post where you indicate over-the-air, in which case I'd also suggest looking into the AC outlet. You can buy simple testers that look for ground, lifted neutral, and other issues at any home improvement store. The LEDs show the fault, if any. Use it on both the TV and PC outlets.

    Also, and assuming your set is digital, do you use an indoor amplified antenna?

    Post edited by Tobor on
  • Seven193Seven193 Posts: 1,146
    edited July 2017

    I do have a surge protector connected to my computer, so I don't know if the interference is coming from the air (like Wifi), or if it's traveling through the lines as noise.

    Tobor said:
    Also, and assuming your set is digital, do you use an indoor amplified antenna?

    Ah, amplified antenna! Would sticking an inline amplifier in there help? I never thought about that. I know it won't solve the problem, but it might help alleviate it. Thanks for all the suggestions.

    Post edited by Seven193 on
  • bexley_ef3f70e572bexley_ef3f70e572 Posts: 44

    One quick test you might try is plugging your TV into another outlet from the other wall -- ie on another circuit.

    Just a thought.  Good luck. 

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