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Static

Discussion in 'CB Radio Forum' started by KAK, Aug 28, 2015.

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  1. Aug 28, 2015 #1
    KAK

    KAK Medium Load Member

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    2000 peterbilt 379, ::: various radios and different antenna's.

    Single antenna, have had mounted on both sides. 4 gage hot and ground wires ran directly to the battery. Have tried grounding to the frame also.

    I have done a lot of bonding with braided ground strap.

    I get a lot of static going over bridges from the pavement and also feed back from trucks inverters and stuff. Heck when I pass a rest area or other trucks on the OTHER side of the interstate I get static till I am passed them. ANY ideas ??


    THANKS
     
    KAK, Aug 28, 2015
    KAK, Aug 28, 2015
    #1
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  3. Aug 28, 2015 #2
    Ridgeline

    Ridgeline Road Train Member

    20,732
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    Dec 18, 2011
    Michigan
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    Yeah try this ....

    Find some old bungee cords those rubber ones, cut the end off of one side and stick the other end onto the running board holes or somewhere else that is connected to the chassis directly and make sure they are hitting or dragging on ground.
     
    Ridgeline, Aug 28, 2015
    Ridgeline, Aug 28, 2015
    #2
    rabbiporkchop Thanks this.
  4. Aug 29, 2015 #3
    rabbiporkchop

    rabbiporkchop Road Train Member

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    Wapwallopen, Pa
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    If you want to eliminate Inverter noise you need to spend a little bit more money and purchase a pure sine wave inverter like mine..

    http://www.amazon.com/SENSATA-DIMENSIONS-1800N-FREQUENCY-INVERTER/dp/B00FG5M912

     
    rabbiporkchop, Aug 29, 2015
    rabbiporkchop, Aug 29, 2015
    #3
  5. Aug 29, 2015 #4
    volvo244t

    volvo244t Road Train Member

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    Bettendorf, IA
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    Do you have an aluminum antenna? If so, change to a copper or stainless one. Fiberglass antennas use copper wire. Also, use all stainless mounts and studs.

    I went from a Monkey-Made MM-9 Long to on an aluminum bird perch bracket, and an aluminum mount, to a 7' Firestik on a stainless bird perch bracket and a stainless mount with a stainless stud... the static in my receive decreased dramatically when going down the road. I used to also notice the increase in static when going from asphalt to concrete pavement, such as when going over a bridge. I no longer have this issue.
     
    volvo244t, Aug 29, 2015
    volvo244t, Aug 29, 2015
    #4
    rabbiporkchop Thanks this.
  7. Aug 29, 2015 #5
    KAK

    KAK Medium Load Member

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    THANKS Guys,

    I will try the bungee cord thing. I THINK I have all stainless mounting hardware I will have to check, mainly run Wilson and Tram antenna's, will try some fiberglass.

    @PORK CHOP, the inverter noise I pick up is from other trucks, not mine. Mine is always off unless I am parked, then my radio is off as well
     
    KAK, Aug 29, 2015
    KAK, Aug 29, 2015
    #5
    truckon Thanks this.
  8. Sep 1, 2015 #6
    KAK

    KAK Medium Load Member

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    Update """" Bungees dragging underneath helped, a little bit.

    Fiberglass antenna , NO help

    Mounting brackets are NOT stainless, just the hardware is.

    Also kinda forgot I get a steady pulse, about 1 second apart,. Truck on or off, makes no difference. Also makes no difference which radio or antenna I am using, it is always there.

    I am thinking maybe the the clock in my stereo, since they are always on with the battery back up ????

    THANKS
     
    KAK, Sep 1, 2015
    KAK, Sep 1, 2015
    #6
  9. Sep 1, 2015 #7
    Bout Z

    Bout Z Light Load Member

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    so. ohio
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    Could also be something with the bonding. The parts of your truck you have bonded, are they near anything electrical? Did you keep the braid as short as possible? Like, 8-10"s or less? Just a thought...good luck
     
    Bout Z, Sep 1, 2015
    Bout Z, Sep 1, 2015
    #7
  10. Sep 2, 2015 #8
    KAK

    KAK Medium Load Member

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    Bonding all short runs, not next to anything elec. Gunna try a separate battery and move everything , isolate it as best as I can. This stuff was much easier when trucks were metal LOL

    THANKS guys
     
    KAK, Sep 2, 2015
    KAK, Sep 2, 2015
    #8
    Bout Z Thanks this.
  11. Sep 2, 2015 #9
    Neverready

    Neverready Medium Load Member

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    Jul 24, 2014
    Pocomoke City, Md.
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    Do you hear the electrical noise with the antenna disconnected? If so the noise may be coming thru the power leads. Some suggest ferrite beads on the power lines may help.
     
    Neverready, Sep 2, 2015
    Neverready, Sep 2, 2015
    #9
    KAK Thanks this.
  12. Sep 2, 2015 #10
    hayseed

    hayseed Light Load Member

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    Dec 31, 2011
    The Natural State
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    Ferrite beads and two stainless steel cables 1/16" dragging from the shock mounts (instead of bungee cords) fixed my static.
     
    hayseed, Sep 2, 2015
    hayseed, Sep 2, 2015
    #10
    KAK and mike5511 Thank this.
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