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|    AMATEUR_RADIO    |    Ham radio for when Armageddon strikes    |    2,531 messages    |
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|    Message 565 of 2,531    |
|    Roy Witt to Ed Vance    |
|    Antennas by Roy    |
|    20 May 14 10:55:58    |
      Greetings Ed!               EV>>> So a Quagi looks like it has two square reflector sections instead        EV>>> of reflector elements?               RW>>> No, a Quagi has a quad reflector and driven element. The rest        RW>>> are parasitic orhestra* leaders. 8^) > directors*               EV>> Yes, Tom already set me right about Your antenna.               RW>> Did he mention that the mirror of the driven loop is slightly        RW>> larger than the driven loop?               EV> I figured 'all by myself' the rear loop would be slightly larger than        EV> the driven loop 'cuz reflector(s) are slightly larger than the driven        EV> portion of the antennas I've read about.              Good show. I like people who can figure things out without someone holding       their hand...               EV>>> It has been a long time since I seen a Gizmotchee Antenna.        EV>>> The ones I saw IIRC only had two sections, Yours has four.               RW>>> Note that it has one driven element for either vertical or        RW>>> horizontal polarization. Tha required two lengths of coax run        RW>>> to a switch box at the operating station. I used RG8 for that.        RW>>> Coax was cheap in c1969.               EV>>> Remember I never heard them called by that name until You mentioned        EV>>> it some time ago.               RW>>> What were they called then?               EV> I meant that I never heard of any name for those antennas.        EV> To me they were just some antenna the CB'ers learned about, as I        EV> never saw any mention of them in the literature that I read. -snip-              Well, you learn something new everyday. I just visited a web site;       www.gizmotchy.com and found out the antenna was named after the inventer;       Charles Gizmotchy, way back in the early 60s...then I was awed by the       "Extreme Gizmotchys" of 9 elements, 8 elements and 7 elements still in       use today. You can even find a list of sellers there, including one in the       Netherlands.               EV>> I forget who it was that made the V-80 Vertical that a friend sold        EV>> me to use on 80M and 40M, I only now remembered it was called the        EV>> V-80. That was my first Antenna and it was a long time ago too.               RW>> An 40mtr inverted V with coils to make it electrically longer        RW>> for 80mtr?               EV> No, just two 1" O.D. aluminum pipes that was put together to make a        EV> Long Vertical Antenna somewhere around 20 foot long, with a 3" Coil        EV> at the bottom with a flea clip connected to the center conductor of        EV> coax to place on a coil winding for tuning it to a frequency in the        EV> 80M Ham Band.              I've seen that setup before. Simple enough to make and use.               EV> For 40M the flea clip got put at the top winding of the coil attached        EV> to the base of the vertical pipe.               EV> A wire connected to the shield of the coax went down to my ground rod        EV> because my Ham Shack was on the second floor.        EV> I never thought of it b4 but what I used looked sorta like a        EV> Vertically Polarized Dipole (Electrically) to my rig. |
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