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Thread: New Super Penetrator Antenna by Hy-Gain MFJ, ILLEGAL?

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  1. #1

    Default New Super Penetrator Antenna by Hy-Gain MFJ, ILLEGAL?

    I see Hy-Gain re-released the Super Penetrator.

    http://www.hy-gain.com/Product.php?productid=SPT-500

    This fantastic true full-size 5/8 Wave 10 / 12 Meter vertical antenna from Hy-Gain was a legend in the 70’s . . . now it’s back to prove its legendary status once again!
    In the 70's this was a CB antenna,

    Now Hy-Gain / MFJ says
    This antenna is illegal for 11 Meters use.
    How can an antenna be illegal for 11 meter use?
    The universe is a pretty big place. If it's just us, seems like an awful waste of space.


  2. #2

    Default

    Think we had a thread on this. Due to a large number of CB radio ops electrocuting themselves putting up antennas,mthey now require CB antennas be made so that they can fall on a power line and not conduct. I.e. fiberglass.
    You pays your money and takes your chances: The contents of this posting are personal opinions. Persons trying to find motive, plot, logic, truth or beauty will be punshed severely under law.

  3. #3

    Default

    Where is that rule located?
    The universe is a pretty big place. If it's just us, seems like an awful waste of space.


  4. #4
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    they now require CB antennas be made so that they can fall on a power line and not conduct. I.e. fiberglass.
    There is no such requirement... I call your statement horse hockey nonsense!

    Challenge: ...Prove me wrong!
    Last edited by KC8VWM; 12-24-2011 at 06:03 AM.
    73 de Charles - KC8VWM
    North American QRP CW Club #3159, SKCC# 5752

  5. #5

    Default

    Besides, Maco makes all aluminum CB antennas.

    In fact, Mosley builds an all aluminum CB antenna, even all the Mosley CB yagi's are all aluminum

    http://www.mosley-electronics.com/pa...roundplane.htm
    The universe is a pretty big place. If it's just us, seems like an awful waste of space.


  6. #6
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  7. #7

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    Quote Originally Posted by W6GQ View Post
    Besides, Maco makes all aluminum CB antennas.
    The CB'ers swear by the Maco 5/8wave antenna and they are 40 bucks cheaper with the same power handling capability & similar length......
    I thought I could get rich in the stock market by investing in
    Viagra, Geritol, And Ginseng but my stocks didn't rise to the occasion.
    Hell, I figured that there was always somebody somewhere either trying to
    Get it up
    Get it going
    or
    Trying to remember what to do with it.
    73 De Bubba
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    [/COLOR]

  8. #8

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    Quote Originally Posted by KG6WOU View Post
    I.e. fiberglass.
    OK, after reading the standard,

    http://ecfr.gpoaccess.gov/cgi/t/text...1.2.43&idno=16


    it can be aluminum, it just needs certain areas to have non insulating qualities?

    Only omnidirectional antennas are part of this standard

    Another possible way to provide this protection is to incorporate an insulating barrier between the antenna and the mast or other supporting structure, so that a harmful electric current will not pass from the antenna to a person in contact with the mast.
    After reading the Maco website and the Mosley website here is what I found

    Maco calls their vertical a "commercial" antenna, so the CB antenna standard does not apply?

    Mosley states

    high strength "cycolac" radial support base section
    "Cycolac", a plastic-like substance, is a popular material used in most Mosley Citizens Band antennas. This high strength molded material is noted for its high tensile strength.
    phenolic radiator support tube whose strength exceeds the tubing itself. All hardware is of stainless steel or other non-corrosive material to meet government specifications.
    So, I guess that is what brings the Mosley into compliance?
    The universe is a pretty big place. If it's just us, seems like an awful waste of space.


  9. #9
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    This law has been around since the 1980's.

    In short, if a company or individual wants to market an omni-directional CB antenna, the antenna has to physically tested in a defined test situation when the antenna is intentionally brought in contact with an equivalent of a standard residential distribution primary line, and withstand that contact (with coax and mast connected) with less than 5 mA current flow.

    Anyone selling a CB antenna that cannot, with feedline and metal mast attached, directly contact a 14.5 kV RMS line is subject to huge penalties, and must even recall the products.

    This is not a simple matter of throwing some insulation on an antenna, or using an insulated mount. It takes a great deal of insulation, and it is very unlikely any mount-insulating system would ever work because the coax and mast would not be allowed to conduct harmful currents. The only legal solution practical is a well-insulated antenna element. Whatever the method, the antenna area would have to withstand physical contact directly to a 14.5 kV RMS power line in the condition the antenna would be in as erected with no leakage above 5 mA. That means feedline and mast in place.

    We can pretty well bet anyone selling an aluminum omni-directional vertical for CB use is breaking a law that has some pretty stiff penalties, unless they have found a way to have 21 kV of peak voltage isolation between the antenna and the mast and coax.

    73 Tom

  10. #10
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    Your tax dollars at work.
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