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Grounding CB antenna

Discussion in 'Technical Chat' started by cameronlane, Feb 13, 2010.

  1. Feb 13, 2010 at 5:43 PM
    #1
    cameronlane

    cameronlane [OP] Well-Known Member

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    Hey all
    Im trying to install a cb radio and I'd like to mount the antenna into the side of the bed right behind the driver side of the cab. How do I ground the antenna so I can tune it? :confused:
     
  2. Feb 13, 2010 at 8:40 PM
    #2
    cameronlane

    cameronlane [OP] Well-Known Member

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    Bump. Help me please :(
     
  3. Feb 13, 2010 at 8:42 PM
    #3
    Stillfly199

    Stillfly199 ( . )( . )

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    You want to run a wire from the mount down to the frame
     
  4. Feb 13, 2010 at 8:43 PM
    #4
    jhodge83

    jhodge83 Any dog under 50# is a cat and cats are useless... Moderator

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    wat?
    the easiest way would be to run a wire to chassis somewhere...like an existing bolt/nut or make a hole and install a bolt/nut, then run that back up to the antenna to ground it. hopefully someone else should chime in
     
  5. Feb 13, 2010 at 8:43 PM
    #5
    cameronlane

    cameronlane [OP] Well-Known Member

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    does the type of wire make a difference?
     
  6. Feb 13, 2010 at 8:44 PM
    #6
    Stillfly199

    Stillfly199 ( . )( . )

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    I dont think so, I used 12 or 14 gauge, cant remember. I found a bolt on a cross member.
     
  7. Feb 13, 2010 at 8:45 PM
    #7
    cameronlane

    cameronlane [OP] Well-Known Member

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    awesome thank you!
     
  8. Feb 13, 2010 at 8:46 PM
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    Stillfly199

    Stillfly199 ( . )( . )

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    No problem, good luck. Its pretty easy. The hardest part was finding the right connectors.
     
  9. Feb 13, 2010 at 8:48 PM
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    cameronlane

    cameronlane [OP] Well-Known Member

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    Yeah im sure it isnt difficult. Im just not very technologically inclined.... yet
     
  10. Feb 13, 2010 at 8:53 PM
    #10
    Stillfly199

    Stillfly199 ( . )( . )

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    I was the same way, well still pretty much am :D
     
  11. Mar 23, 2010 at 9:06 PM
    #11
    blackwidow2009

    blackwidow2009 Well-Known Member

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    If you are mounting the antenna on the outside of the truck (on metal), the antenna will be grounded already by default...the bed metal is connected to the frame at some point.

    If you are mounting the antenna on the inside of the bed on the plastic, you need to run a grounging cable to the frame. Also, and MOST IMPORTANT I recommend using a "no-ground-antenna". This is NOT the same as grounging the cable. A "no-ground-antenna" is an antenna that does not need to be mounted on metal, or at least alot of it, like boats or RV's. CB antenna's need metal around them (think of a candel standing on a plate) inorder to transmit (TX), and is needed inorder to tune your antenna so it has a low SWR.

    If you get the "no-ground antenna", it will come with a cable that attaches to the base of it and you just run it out of site. It acts like a large surface of metal, much like the truck of a car does for a truck mount antenna.

    Make sure you have a SWR meter, and tune your antenna...the antenna will come with directions on how to tune that specific one.

    DONT NOT ever key you mic unless your radio is attached to an antenna...you'll fry it up in less then a second!!! Seriously, you'll burn it up inside just that quick. At the same time, talking with a un-tunes radio, will do the same, just takes longer. But dont let that scare you. You will not fry the radio in the short time that you keying it up while your tuning the antenna.
     
  12. Jul 3, 2012 at 9:13 PM
    #12
    b.prall

    b.prall Whiskey, Tango, Foxtrot

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    i have an 06 tacoma, i baught a 5' firestik 2, stanless mount and 18' of wilson coax, i ran a ground to the frame and when i try to tune the antenna it pegs the nedle on the swr meter, i used 12 gage wire, was told to try ten guage and make the ground as short as possabe, any sugestions would be appreciated
     
  13. Jul 3, 2012 at 9:21 PM
    #13
    Ridgerunner

    Ridgerunner Well-Known Member

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    +1 on his post-the "wire" he's talking about is called a "counterpoise" or "something for the antenna to work against" like it would off the truck body.
    I personally would do a hard ground to the metal body-and just keep the ground strap short as possible-if it gets long enough to be a quarter wave of 27 mHz it will try to be part of the antenna instead of ground.

    Bottom line-get a proper ground strap (braid) or at least #12AWG thick copper wire and drill a spot IN THE METAL BODY within 2' of the antenna and ground there:)
     
  14. Jul 3, 2012 at 9:23 PM
    #14
    RattleSnake44

    RattleSnake44 Well-Known Member

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    Sub'd. Adding a CB is gonna be my next project. Collecting all the info I can.
     
  15. Jul 4, 2012 at 11:37 AM
    #15
    b.prall

    b.prall Whiskey, Tango, Foxtrot

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    do i attach the ground strap to the anttena or to the mount,sory if this is a stupid question, i've never had a cb or had to install one
     
  16. Jul 4, 2012 at 12:53 PM
    #16
    Ridgerunner

    Ridgerunner Well-Known Member

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    To the mount.
     
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