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Jo Gunn Hillbilly Antenna

Discussion in 'CB Antennas' started by Rowdy531, Mar 4, 2008.

  1. Rowdy531

    Rowdy531 Member

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    Can anyone give me any advice on this Antenna. Recently purchased one, seems to be a good transmitting antenna. Recieving another matter. From
    Antenna connection to switch box 72' Swr's 1.5 to 2. Gounded properly
    It seems to carry a certain noise level on all channels. I used 3 different radios to make sure that radio was not the problem I am wondering if
    anyone has any little tips or suggestions:confused:

    Thanks


     
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  2. freecell

    freecell BANNED

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    the antenna is both vertically and horizontally polarized. which polarization are you using?
     
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  3. Rowdy531

    Rowdy531 Member

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    I am using both
     
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  4. freecell

    freecell BANNED

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    then you're using two feedlines?
     
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  5. Rowdy531

    Rowdy531 Member

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    I am using two feedlines, I have a switch that They come into
     
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  6. freecell

    freecell BANNED

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    are noise levels the same in both polarizations?
     
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  7. Rowdy531

    Rowdy531 Member

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    yep they sure are
     
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  8. freecell

    freecell BANNED

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    two more questions:

    what is the noise floor signal strength?....S?
    if the radio has a noise blanker, does it have any effect?
     
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  9. Rowdy531

    Rowdy531 Member

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    signal strength right a 3 , and when you flip the NB switch it makes a difference as far being louder or lower, but the signal strength does't change
     
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  10. Master Chief

    Master Chief Guest

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    I have the advise you seek, but you will not like it.

    Find someone to buy the Hillbilly and get yourself an I-10K. A properly DC grounded antenna should help with your noise level. The gain of a 1/2 wave or better will also improve your signal strength.

    A Maco V58 is also DC grounded and has more gain than the Hillbilly. If you want a horizontal antenna, buy a simple beam or make a Moxon. You will be much happier!
     
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  11. freecell

    freecell BANNED

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    it would seem that the noise source favors no particular polarization and it's present 24/7. check to see that when the feedline is disconnected from the transceiver that the noise disappears. if so then the noise is not arriving directly via the ac mains. what exactly is the height of the antenna feedpoint above ground and what is the approximate distance from the antenna to any external source of commercial ac power? (power lines, poles, transformers, etc.)
     
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  12. Rowdy531

    Rowdy531 Member

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    Thanks for all of your help, You are right I do not like it, Do you have a web site to look at the antenna you speak of. Is iit horizontal and vertical ?
     
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  13. Rowdy531

    Rowdy531 Member

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    From where the feed lines attach to the antenna mast (not the pipe)to the ground is 31.6' my roof line is approximately 21' from ground so there is about 10' between roof and radial of antenna. All power lines, telephone, etc is under ground. However
    there is a transformer in my front yard It may be 80' from antenna

    when I do disconnect from transciever it disappears
     
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  14. freecell

    freecell BANNED

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    just so you know, if there is an external noise source in the proximity of the antenna location radiating broadband rf simply replacing the antenna with another one will not solve your problem.

    your best bet would be to grab an am transistor portable, a cb ht, walk the property, locate the offending noise source/s and fix them. you'd feel pretty stupid if you went out and spent hundreds of dollars for another antenna only to finally figure out that a loose power distribution insulator or some other electrical appliance was the source of the noise.
     
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  15. Rowdy531

    Rowdy531 Member

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    I just alerted the Utility company about the transformer, so I guess that would be the most practical step to take now. I will keep you posted
     
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