Need lots of room, keep them away from metal objects like heaters and ducts wire antennas can be run near the peak of the roof inside the attic, bent in odd shapes to match the space available. Here are some images after the first day of work on the antenna. Taylor, w2ozh, in which he described a low profile collinear coaxial array. The main category is 14 mhz meters ham radio antennas that is about 20 meters band antennas. It looks like a g5rv, but w5gi now sk used coax stubs to give what he called a coaxial colinear array on 20m. The w5gi multiband mystery antenna is a fundamentally a collinear antenna comprising three half waves inphase on 20 meters with a halfwave 20 meter line transformer.
Apr 21, 2014 the w5gi mystery antenna is similar to a g5rv but w5gi now sk used coax stubs to give what he called a coaxial colinear array on 20m. Feedback from users indicates that the antenna has met or exceeded all performance criteria. About w5gi mystery antenna the resource is currently listed in in 10 categories. Jun 30, 2018 the basic dipole, multiband dipoles, random length multiband antennas, verticals, flag pole verticals, inverted v, mobile antennas adapted for backyard use, the fencetenna, g5rv, w5gi mystery antenna, buddipole antennas, inverted l, hamstick antennas, isotrons, no radial verticals, vertical dipoles, ventennas for vhfuhf, and remote antenna. A multiband wire antenna that performs exceptionally well even though it confounds antenna modeling software article by sk the design of the mystery antenna was inspired by an article wri were ee, the uks biggest network. Figure 1 schematic drawing of the w5gi multiband mystery antenna. The w5gi mystery antenna an hf wire antenna that out performs the g5rv a tutorial and assembly instructions for the w5gi antenna by. Im hearing mixed responses regarding the need for an external tuner to complement the 450ds internal tuner. This was written up in cq in 2003 or early 2004 as a mystery antenna because he got conflicting antenna analysis program results from his friends. For more demanding applications, the 3042 tuner and associated whip is recommended. Antenne hf mf mf medie 300khz 3000khz m100m hf corte decametriche 3mhz30mhz 100m10m.
Justia trademarks categories electrical and scientific apparatus w5gi mystery antenna trademark details w5gi mystery antenna trademark details status. Google the w5gi mystery antenna, most times, the outside of the shield carries a common mode current caused by a feed point unbalanced to balance transition or running the coax thru the antenna radiation near field or from a noise source in your house or neighborhood. This link is listed in our web site directory since monday sep 11 2006, and till today cq amateur radio w5gi mystery antenna has been followed for a total of 6116 times. Any positives and any negatives are truly welcomed or any suggestions as well. A multiband wire antenna that performs exceptionally well even though it confounds antenna modeling software click faq to read a list of frequently asked questions and answers about the w5gi mystery antenna. The design of the mystery antenna was inspired by an article written by james e. Aug 26, 2014 w5gi mystery antenna at august 26, 2014. Please practice handwashing and social distancing, and. A multiband wire antenna that performs exceptionally well even though it confounds antenna modeling software. Common mode currents on a feedline a practical lesson. Having space constraint at your qth to put up an antenna. Bottom inverted v angled windom antenna two wire elements 25 meters 19 meters tiptotip tips angled 30 down 19.
It retains the highstrength in the antenna wire, allowing the antenna to help support the central mounting pole. This link is listed in our web site directory since wednesday aug 23 2006, and till today w5gi mystery antenna has been followed for a total of 2745 times. Cq amateur radio w5gi mystery antenna resource detail. An easy dual band vhf uhf antenna iw5edi simone hamradio. How to transform your zs6bkw into an allhfband antenna. There are some interesting aspects of the physical. The mystery antenna presents a sixlobe pattern on 20 meters with gain broadside to antenna. No heavy coax or inline traps in the antenna line like the w5gi or w3dzz. Fig 1 schematic drawing of the w5gi multiband mystery antenna.
Steve has put up this highly touted antenna and has done some serious evaluation. I used the antenna to simply test reception which is what youre seeing in the images. See text for details on connection of coax sections in center of antenna legs and on length of of twin lead stub. Mar 30, 2015 the w5gi multiband mystery antenna is a fundamentally a collinear antenna comprising three half waves inphase on 20 meters with a halfwave 20 meter line transformer. Hf radio, ham radio antenna, good communication, boombox, spectrum, ham soup, hams, circuits, radios. The designers statement is a priori dismissal of any quantitative analysis that seeks to understand the antenna system and its claims. Sep 4, 2016 a multiband wire antenna that performs exceptionally well even though it confounds antenna modeling software article by w5gi sk the design of the mystery antenna was inspired by an article written by james e. Click faq to read a list of frequently asked questions and answers about the w5gi mystery antenna the design of the mystery antenna was inspired by an article written by james e. Photo a full view of the w5gi multiband mystery antenna with all sections shortened considerably for illustration purposes. For mobile applications, we generally recommend the codan 3040 automatic whip antenna. It may sound and looks like a g5rv but it is a substantially different antenna on 20 meters.
Instead of having the stubs hang vertically, w5gi incorporated them into the doublet length. W5gi mystery antenna ham radio, ham radio antenna, hf radio. Im picking up a new yaesu ft450d to pair with my w5gi 806 antenna. Thoughts on the mystery antenna, k5pa 31 january 2006 1 thoughts on the mystery antenna by gene hinkle, k5pa the w5gi multiband mystery antenna1 is simply a linear array of dipoles fed inphase to create a gain broadside to the antenna.
Antenna patterns are reasonable for local or dx work. Using mmanagal for antenna modelling g0kyas amateur. This antenna is a collinear array and resembles a g5rv with lots of gain on 20m. If i get a tuner right away, ive narrowed it down to a mfj 925 and an. Our september program will be by pat moretti, ka1rb. This article taken from qst september 1994 is about a vertical dualband antenna for 144 and 430 mhz made with a tv twin lead and coax cable.
The zs6bkw antenna evolved from an optimization of the g5rv antenna that, in general, sacrifices 75m operation to gain 17m and 10m operation. Works on the low bands with a tuner and out performs a g5rv on 40, 80, and 160m. Antenne hf commerciali bravo benvenuti su officinahf. Please practice handwashing and social distancing, and check out our resources for adapting to these times. Louis varneys antenna, although three half waves long, was an outofphase aerial. The w5gi mystery antenna is similar to a g5rv but w5gi now sk used coax stubs to give what he called a coaxial colinear array on 20m. I am now feeding that into the w5gi mystery antenna from k4tr. The w5gi mystery antenna, erected at various heights and configurations, is currently being used by thousands of amateurs throughout the world. Pat is an arrl official observer coordinator and will fill us in on his activities. Multiband hpole vertical wire antenna for 160m 10m by. It consists of a half wave length at 20m of 300 ohm ribbon that feeds a dipole centre.
Download the presentation in pdf format with the notes included 8. Many types of antenna can be mounted in the attic if you dont have radiant barrier tech shield. W5gi mystery antenna ham radio antenna, ham radio, sw radio. Where the g5rv is basically a four hf band antenna 80m, 40m, 20m, and 12m the zs6bkw is a five hf band. How to transform your zs6bkw into an allhfband antenna by cecil moore, w5dxp, rev.
Where the g5rv is basically a four hf band antenna 80m, 40m, 20m, and 12m the zs6bkw is a five hf band antenna 40m, 20m, 17m, 12m, and 10m. The driven element is isolated from the boom, the reflector and director are direct connection with boom. Zs6bkw vs g5rv acadiana amateur radio association, inc. Aug 27, 2011 multiband mystery antenna is a fundamentally a collinear antenna comprising three half waves inphase on 20 meters with a halfwave 20 meter line transformer. For base station applications, we generally recommend the 411 terminated folded dipole antenna, or a full delta antenna, if sufficient space is available proper antenna selection requires consideration of many. Hf antennas especially stealth models for those in an hoa. This w5gi is a g5rv variant, that is said to work better than the g5rv on all bands, both are multi band antennas with design frequency for 20 meters. Disclaimer with predetermined text antenna goods and services. This antenna covers 80 to 6 meters with low feed point impedance and will work with most radios, with or without an antenna tuner.
The basic dipole, multiband dipoles, random length multiband antennas, verticals, flag pole verticals, inverted v, mobile antennas adapted for backyard use, the fencetenna, g5rv, w5gi mystery antenna, buddipole antennas, inverted l, hamstick antennas, isotrons, no radial verticals, vertical dipoles, ventennas for vhfuhf, and remote antenna. Oct 30, 2010 home amateur radio building the w5gi mystery antenna day 1. This is my first foray into hf so im guessing ill be most active initially on 4020, and then wandering off after a time into the other bands. A multiband wire antenna that performs exceptionally well even though it confounds antenna modeling software article by w5gi sk the design of the mystery antenna was inspired by an article written by james e. Right now, ive simply used the model to build the primary 20m dipole. Related posts via taxonomiessingle coax feed to multiband copper cactus antennasingle band copper pipe j antenna3 eelements yagi beam for 6 meters2 meter band halo antenna7 elements yagiudaread more. The mystery part of the antenna comes from the fact that it is difficult, if not impossible, to model. It may sound and look like a g5rv but it is a substantially different antenna on 20 meters. The antenna has a stub of coax on each side to decouple the outer part of the antenna from the inner dipole.
The w5gi mystery antenna is described by its designer as a multiband wire antenna that performs exceptionally well even though it confounds antenna modeling software basilotto 2004. W5gi mystery antenna pop w5gi mystery antenna is a multiband wire antenna that performs exceptionally well even though it confounds antenna modeling software. At our october meeting, you will get to meet our new. See text for details on connection of coax sections in cq july 2003. A multiband wire antenna that performs exceptionally well even though it confounds. The w5gi mystery antenna is fundamentally a collinear antenna comprised of three half waves inphase on 20 meters with halfwave ladder line transformer based on 468 14. Pa0fsb for submitting to us his document describing the k9ay loop antenna pdf, which is the antenna that he successfully uses with his rtlsdr for hf reception. A pdf file of plots, charts etc is available for this project. Can be operated on nonoptimum bands with an external tuner.
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