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Thread: Maybe someone can enlighten me

  1. #1
    Conch Master KJ3N's Avatar
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    Maybe someone can enlighten me

    Can anyone figure out what this guy expected, other than a miracle?

    http://www.eham.net/ehamforum/smf/in...,100680.0.html
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  2. #2
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    It looks sort of like the bait I used to use to catch squid as a kid on Martha's Vineyard.

    I'd chuck it in the water and see what bites.
    Jim
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  3. #3
    Island Godfather NA4BH's Avatar
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    You should tell him to try a fractal vertical antenna. Probably work as good as the one he has now.
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    The best ones are opened with a smile"

    NA4BH '15

  4. #4
    Administrator N8YX's Avatar
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    Can anyone decipher the following?

    The flat dipole configuration would be best for gain side-to-side but the SWR would be above 1.5 to 1 because of impedance around 70 ohms. It would not be good for QSOs with stations with vertical antennas.
    "Everyone wants to be an AM Gangsta until it's time to start doing AM Gangsta shit."

  5. #5
    Orca Whisperer W3WN's Avatar
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    Quote Originally Posted by KJ3N View Post
    Can anyone figure out what this guy expected, other than a miracle?

    http://www.eham.net/ehamforum/smf/in...,100680.0.html
    Well, let me put it this way...

    40 years ago, he'd have bought a Gotham vertical. Ya know what I mean?
    “Nobody is going to feel sorry for us. 90% of the people don’t care, the other 10% are glad it happened.” — Clint Hurdle, 2019

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  6. #6
    Orca Whisperer W3WN's Avatar
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    Quote Originally Posted by N8YX View Post
    Can anyone decipher the following?
    The flat dipole configuration would be best for gain side-to-side but the SWR would be above 1.5 to 1 because of impedance around 70 ohms. It would not be good for QSOs with stations with vertical antennas.
    (a) Gain off the sides of the antenna is better when it is configured as a linear dipole, not an inverted V
    (b) SWR in the above configuration will be higher because a linear dipole has a characteristic impedance at the center feed-poin of 70-75 ohms, whereas an inverted V has a characteristic impedance of 50 - 52 ohms.
    (c) Because the flat dipole is radiating in the horizontal plane, thus horizontal polarization, it won't work well when communicating with stations running vertical polarization.
    (c1) Whomever wrote (c) above is full of male bovine animal waste byproduct.
    “Nobody is going to feel sorry for us. 90% of the people don’t care, the other 10% are glad it happened.” — Clint Hurdle, 2019

    BAN THE DH!

    Fudd's First Law of Opposition: If you push something hard enough, it WILL fall down.
    Teslacle's Deviant to Fudd's Law: It goes in, it must go out.

    Just remember: Abraham Lincoln didn't die in vain. He died in Washington, DC

    Cutch 300!!!!!

    “Nero fiddled while Rome burned. Trump golfed.” — Bernie Sanders

    Quando Omni Flunkus Moritati


  7. #7
    Conch Master KJ3N's Avatar
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    Quote Originally Posted by W3WN View Post
    Well, let me put it this way...

    40 years ago, he'd have bought a Gotham vertical. Ya know what I mean?
    No, I don't. That's quite a bit before I got into ham radio. Please elucidate.
    "People Who Don't Want Their Beliefs Laughed at Shouldn't Have Such Funny Beliefs" -AD5MB

    "If someone tells you he believes in and talks to an invisible bunny named Harvey, you put him on medication and a regimen of therapy. If someone tells you he believes in and talks to God, well, that's perfectly acceptable. Why that's the case is impossible for me to fathom." - WP2XX



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  8. #8
    Whacker Knot WØTKX's Avatar
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  9. #9
    Conch Master KJ3N's Avatar
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    Antenna ads from the 50s and 60s? Boy, some of you are really old farts.

    I imagine that the CHA-250B is the modern equivalent of the Gotham.
    "People Who Don't Want Their Beliefs Laughed at Shouldn't Have Such Funny Beliefs" -AD5MB

    "If someone tells you he believes in and talks to an invisible bunny named Harvey, you put him on medication and a regimen of therapy. If someone tells you he believes in and talks to God, well, that's perfectly acceptable. Why that's the case is impossible for me to fathom." - WP2XX



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  10. #10
    'Grumpy old bastid' kb2vxa's Avatar
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    And second cousin to the bat wing dipole.
    "The universe is under no obligation to make sense to you."
    Neil deGrasse Tyson

    73 de Warren KB2VXA
    Station powered by atomic energy, operator powered by natural gas.

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