Page 3 of 3 FirstFirst 123
Results 21 to 25 of 25

Thread: See if you can spot the problem with the following

  1. #21
    Orca Whisperer W3WN's Avatar
    Join Date
    Dec 2007
    Location
    Castle Shannon, PA
    Posts
    19,342
    That "gold standard SWR device" looks like a big resister with screw terminals hidden inside of a big heat sink.

    There was some company, in the neighborhood of 20 years ago, who was marketing a magic antenna with a secret box that you hooked the wires to. Someone (was this in QST or 73?) who finally reviewed it took the secret box apart, cleaned out all the gunk heat sink material around the central component, and discovered... a big 50 ohm resistor bank. So of course the antenna always presented a 1:1 SWR, all the radio saw was the resistors.

    After the review was published, if memory serves, the magic antenna and the company marketing it quickly disappeared.
    “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


  2. #22
    Conch Master KJ3N's Avatar
    Join Date
    Jul 2009
    Location
    A secret cave in northern Delaware.
    Posts
    9,113
    Quote Originally Posted by W3WN View Post
    That "gold standard SWR device" looks like a big resister with screw terminals hidden inside of a big heat sink.
    Give that man a cigar.... and a kewpie doll! We have a winnah!!
    "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



    Latest ClubLog entries.

  3. #23
    Administrator N8YX's Avatar
    Join Date
    Feb 2007
    Location
    Out in the sticks
    Posts
    26,083
    Sonny Irons' old company offered the Max-Comm. Was touted as manna by people who should have known better and/or didn't have access to a network analyzer.
    "Everyone wants to be an AM Gangsta until it's time to start doing AM Gangsta shit."

  4. #24
    Master Navigator
    Join Date
    Jun 2008
    Posts
    1,396
    Quote Originally Posted by W3WN View Post
    He'd tuned up the radio and forgotten to take it off the dummy load before checking into the net.

    And the dummy load he was using that night, or so he said? A 100 W light bulb.
    I'd swap out that 100 W bulb for a 300 W monster, to get a: 10 log (300W / 100W) = 4.8 dB SIGNAL BOOST!!!!
    And to insure top station efficiency, I'd "go green" with an energy saving CFL or LED bulb! Yup!

  5. #25
    Master Navigator K4PIH's Avatar
    Join Date
    Oct 2014
    Location
    Northern Virginia
    Posts
    1,289
    I remember looking at thise Isotron antennas and thinking if I got anough parts and pieces and starting putting them together I would eventually come up with a design that worked, to a degree. Same principle as putting 1 000 000 chimps in a room with typwriters and sooner or later getting the constitution.

    isotronantenna.jpg
    "Don't put it on the plate if you can't eat it!"

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •