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

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by W6GQ, Dec 24, 2011.

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  1. W6GQ

    W6GQ Swap Meet Moderator Volunteer Moderator QRZ Page

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

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

    In the 70's this was a CB antenna,

    Now Hy-Gain / MFJ says
    How can an antenna be illegal for 11 meter use?
     
  2. NA0AA

    NA0AA Ham Member QRZ Page

    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.
     
  3. W6GQ

    W6GQ Swap Meet Moderator Volunteer Moderator QRZ Page

    Where is that rule located?
     
  4. KC8VWM

    KC8VWM Premium Subscriber QRZ Page

    There is no such requirement... I call your statement horse hockey nonsense!

    Challenge: ...Prove me wrong!
     
    Last edited: Dec 24, 2011
  5. W6GQ

    W6GQ Swap Meet Moderator Volunteer Moderator QRZ Page

  6. W6RZ

    W6RZ Ham Member QRZ Page

  7. KD8DEY

    KD8DEY Subscriber QRZ Page

    The CB'ers swear by the Maco 5/8wave antenna and they are 40 bucks cheaper with the same power handling capability & similar length......
     
  8. W6GQ

    W6GQ Swap Meet Moderator Volunteer Moderator QRZ Page

    OK, after reading the standard,

    http://ecfr.gpoaccess.gov/cgi/t/tex...rgn=div5&view=text&node=16:2.0.1.2.43&idno=16


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

    Only omnidirectional antennas are part of this standard

    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

    So, I guess that is what brings the Mosley into compliance?
     
  9. W8JI

    W8JI Ham Member QRZ Page

    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. AF6LJ

    AF6LJ Premium Subscriber QRZ Page

    Your tax dollars at work.
    One of the very few times your tax dollars are not used to kill someone in a country half way around the world.
     
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