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The Spiro-Helical Antenna and a little more {Yeah Slinkys !} . . .
For One and All,
The Spiro-Helical Antenna -by- Idine Ghoreishian http://scholar.lib.vt.edu/theses/ava...cted/etdig.pdf Thesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE In Electrical Engineering A Mini-Slinky (Metal Spring Thingee) on a Hula Hoop works for me. What About a Slinky Window Loop Antenna ? ? ? Try a 'simple' Mini-Slinky on a Hula Hoop Antenna placed on/in an outside facing Window. http://groups.yahoo.com/group/Shortw...a/message/2763 http://groups.yahoo.com/group/Shortw...a/message/2741 - Four In-Door "Mini-Slinky" Antennas Slinky Jr. on a Hula Hoop = A Loop Antenna plus using a MFJ-1020C {Pre-Selector} http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/2741 http://groups.google.com/group/rec.r...fad0a7e37de992 Hula Hoop Loop Antenna and more . . . http://groups.google.com/group/rec.r...fc1c535a7e8169 http://groups.google.com/group/rec.r...525fb13002c52d Consider a simple-to-make Dual (2) Slinky Dipole Antenna using two "Mini-Slinkys" Stretched-Out Horizontally : These are Fed with 300 Ohm "TV" Twin Lead and connected to your Radio via the HI-Z (500 Ohm) Terminals. http://groups.google.com/group/rec.r...0aacb8e4723daa ABOUT - Slinky Antennas - More Then You Wanted To Know http://groups.yahoo.com/group/Shortw...a/message/5367 http://groups.google.com/group/rec.r...f6729ce326591b Rigging the Slinky Dipole Antenna http://groups.yahoo.com/group/Shortw...a/message/5389 http://groups.google.com/group/rec.r...f97f29cd917b1e Recommend - That you Set-Up the Two SLINKYs in the Attic using a Coax Cable Feed-in-Line and a Matching Transformer (Balun). http://groups.google.com/group/rec.r...0e10e6042b7eda Configure - The SLINKYs as a "Windom" Antenna {Off-Center Fed Dipole} SEARCH - Rec.Radio.Shortwave (RRS) NewsGroup For "Slinky Antenna" Info -by- RHF SLINK ANTENNA INFO = http://tinyurl.com/9zaug http://groups.google.com/group/rec.r...a+ rhf&qt_g=1 That 'little' Something Extra - TORUS TUNER - The Torus Tuner Loop Antenna - A Review in Words and Pictures [ Edek 26" Inductively Coupled MW Loop ] - by RadioIntel.Com http://www.radiointel.com/review-edek.htm REF = http://www.torustuner.com/. Consider a 'home-made' Hula-Hoop Loop Antenna. http://groups.google.com/group/rec.r...34348788936b04 there be... circles within circles - iane ~ RHF |
The Spiro-Helical Antenna and a little more {Yeah Slinkys !}. . .
RHF wrote:
For One and All, The Spiro-Helical Antenna -by- Idine Ghoreishian http://scholar.lib.vt.edu/theses/ava...cted/etdig.pdf Thesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE In Electrical Engineering A Mini-Slinky (Metal Spring Thingee) on a Hula Hoop works for me. What About a Slinky Window Loop Antenna ? ? ? Try a 'simple' Mini-Slinky on a Hula Hoop Antenna placed on/in an outside facing Window. http://groups.yahoo.com/group/Shortw...a/message/2763 http://groups.yahoo.com/group/Shortw...a/message/2741 - Four In-Door "Mini-Slinky" Antennas Slinky Jr. on a Hula Hoop = A Loop Antenna plus using a MFJ-1020C {Pre-Selector} http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/2741 http://groups.google.com/group/rec.r...fad0a7e37de992 Hula Hoop Loop Antenna and more . . . http://groups.google.com/group/rec.r...fc1c535a7e8169 http://groups.google.com/group/rec.r...525fb13002c52d Consider a simple-to-make Dual (2) Slinky Dipole Antenna using two "Mini-Slinkys" Stretched-Out Horizontally : These are Fed with 300 Ohm "TV" Twin Lead and connected to your Radio via the HI-Z (500 Ohm) Terminals. http://groups.google.com/group/rec.r...0aacb8e4723daa ABOUT - Slinky Antennas - More Then You Wanted To Know http://groups.yahoo.com/group/Shortw...a/message/5367 http://groups.google.com/group/rec.r...f6729ce326591b Rigging the Slinky Dipole Antenna http://groups.yahoo.com/group/Shortw...a/message/5389 http://groups.google.com/group/rec.r...f97f29cd917b1e Recommend - That you Set-Up the Two SLINKYs in the Attic using a Coax Cable Feed-in-Line and a Matching Transformer (Balun). http://groups.google.com/group/rec.r...0e10e6042b7eda Configure - The SLINKYs as a "Windom" Antenna {Off-Center Fed Dipole} SEARCH - Rec.Radio.Shortwave (RRS) NewsGroup For "Slinky Antenna" Info -by- RHF SLINK ANTENNA INFO = http://tinyurl.com/9zaug http://groups.google.com/group/rec.r...a+ rhf&qt_g=1 That 'little' Something Extra - TORUS TUNER - The Torus Tuner Loop Antenna - A Review in Words and Pictures [ Edek 26" Inductively Coupled MW Loop ] - by RadioIntel.Com http://www.radiointel.com/review-edek.htm REF = http://www.torustuner.com/. Consider a 'home-made' Hula-Hoop Loop Antenna. http://groups.google.com/group/rec.r...34348788936b04 there be... circles within circles - iane ~ RHF . All are WELCOME and "Invited to Join" the Shortwave Listener (SWL) Antenna eGroup on YAHOO ! http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ SWL ANTENNAS GROUP = http://tinyurl.com/an6tw . Some Say: On A Clear Day You Can See Forever. I Believe : On A Clear Night You Can Hear Forever . . . and Beyond , , , The BEYOND ! ! ! With a Shortwave Listening Antenna of your own making. "If You Build It {SWL Antenna} You Will Hear Them !" http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ SWL ANTENNAS GROUP = http://tinyurl.com/an6tw . . . . . I think there is a math error on page 85, subsection ii, jeesh check it out 90+ pages, I got dizzy looking at the math in this |
The Spiro-Helical Antenna and a little more {Yeah Slinkys !} .. .
Just got to love them Slinkys.I used to own a Slinky when I was a kid.A
few months ago,I walked every one of them 12 or 13 toys isles,twice,at the Wal Mart store and I didn't see any Slinkys at all.There is a Toys R Us store near me,but I keep forgeting to check out that store.I just can't see me ordering a Slinky toy from any online internet stores. cuhulin |
The Spiro-Helical Antenna and a little more {Yeah Slinkys !}....
I used to get dizzy watching my old Slinky Slinking down the steps.
cuhulin |
The Spiro-Helical Antenna and a little more {Yeah Slinkys !} . . .
On 10 Jan 2006 13:06:12 -0800, "RHF"
wrote: Quadrifilar Helix (that ought to occupy you for a while) |
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