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Thread: Preventing noise from other electronics

  1. #16
    Join Date
    Mar 2014
    Silver City, NM

    Re: Preventing noise from other electronics

    Quote Originally Posted by Lunatic_Fridge View Post
    I'll put a note on my phone calendar to come back to this friday night/saturday morning and give you a write up on the how to find and resolve noises on rx and noises on tx in mobile installations. It gets a bit much to type on a phone.

    Lunatic Fridge

    Sent from the FrankenHeep
    Is this going to be about what comes through via the antenna? I never could get much help and told there's almost nothing you can do about it.

    Also, if you're curious about the torroid, this is what I am talking about.

    Silence is Golden, but Duct Tape comes in many colors.
    Practice Leave No Trace, leave it cleaner than you found it.
    Jorneyman Polyphase Meterman - IBEW Local 387

  2. #17
    Join Date
    Jan 2007
    East Mesa

    Re: Preventing noise from other electronics

    For true antenna received noise you have to attack the source. Front end filters are usually bulky and expensive for a CB install.

    Sent from my SM-G935V using Tapatalk
    It's like an LJ... only bigger.

  3. #18

    Re: Preventing noise from other electronics

    The most common cause of noise issues is grounding, either on the side causing it or the side receiving it. So always first make sure your radio and antenna both are very well grounded. Then do the same for the suspected source. Also the sources are additive, so if you have X amount of noise from the fuel pump, and Y from the wiper motor, the end result is the addition of both. That may be just enough to push things over the edge. So test with the engine off and wipers on.

    A small to medium capacitor between the positive lead and ground on the source and/or receiver will often help with high-pitch noises from things like an alternator or motor. It can't hurt to try.

    Oh, and you are using resistor plugs, right?
    Carlos Alvarez
    2015 copper pearl JKU Rubicon

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