I left the standard single bay gh6 gray hoverman antenna at the rented house when i moved out to my new place. Oct 18, 2015 grayhoverman is an easy to build wideband uhf antenna. Freshly exhumed writes retired and hobbyist antenna engineers working together in the digital home forums have taken an obscure 1950s uhf tv antenna called the hoverman pdf and subjected the design to modern software based computer modeling in hopes of optimizing its middling performance. According to the enthusiast in an online forum, the original design of the gray hoverman antenna had a poor. Since wineaard actually controls the antennas production, it may not be available from any other source except radio shack, as it is not currently a popular antenna design. Grayhoverman uhf antenna sunday, 21 february 2010 asahjaya. Pictured below is a schematic of the proposed antenna dubbed xgh8 along side the singlebay gh10 for comparison. In late 2007 and through much of 2008 the hoverman antenna was subjected to computer modeling and a number of improvements were made by a small group of antenna enthusiasts on the digitalhome. Building my own single bay grayhoverman antenna need protips on a version for my area and how to narod. Gray hoverman antenna started by admin, april 21, 2017. Any information on the performance of the grayhoverman. The grayhoverman antenna designs, schematics, and diagrams.
Dec 23, 2016 this is a easy tv antenna to build picks up vhf and uhf. Grayhoverman is an easy to build wideband uhf antenna. Jan 18, 2015 the gray hoverman antenna has been designed by doyt r. In addition to the foam core board and copper tape, youll also need a really cheap balun transformer which you can get at any electronics store, two wood screws or solder to attach it. It is slightly more complex than the gh6 but still it can be approached simply and without any sophisticated tools. With the antenna inside the house, leaning against a wall in the general direction of the canadian feeds based out of. Grayhoverman, the wideband tv antenna diy tv antenna. The design of the antenna has a little modification from the original design in order to increase the performance. Receiving all these frequencies is difficult when using a single antenna. The gray hoverman is a series of half squares set on top of each other.
It uses selfsimilar designs and, as a result, one gets reduced antenna size in comparison with classical antenna types for the same gain, or better gain per size, if you like and better bandwidth. And while it has proven to be very effective in many instances, it lacks a certain coolfactor. If that could have been a problem, its not anymore. Feb 08, 2014 one that has garnered a lot of attention from diy people is called the gray hoverman antenna. The gray hoverman antenna for uhf television reception march 11, 2008 updated march 22, 2008 corrected sbgh performance plots this project is dedicated to doyt r. The grayhoverman antenna for uhf television reception march, 2008 this project is dedicated to doyt r. This is the first of two antenna designs ive built. By adding some additional elements called narods you can also receive vhf. Why would anyone even want to build their own uhf television antenna. The antenna is now up and running good except for a bit of double image.
Earlier this year we shared a great antenna design with you, based on the gray hoverman model. Design of the grayhoverman antenna digital home canada. It has a very high gain but a much narrower bandwidth at its design frequency. I was wondering if i could get some feedback from anyone using a similar antenna as to its performance. The grayhoverman antenna for uhf television reception march 11, 2008 updated march 22, 2008 corrected sbgh performance plots this project is dedicated to doyt r. The 5 coolest diy tv antenna plans anyone can build. And really, coolfactor is what you should be shopping for in an antenna anyway. The grayhoverman antenna has its roots in a design dating back to the late. It does not and cannot protect ideas including the original hoverman or the newer grayhoverman designs. The antenna offers sufficient gain for dvbt, dvbt2, isdbt and atsc reception. Oct 18, 2015 gray hoverman is an easy to build wideband uhf antenna.
Earlier this year we shared a great antenna design with you, based on the grayhoverman model. This antenna is recommended when fm receiver has 300. I took the antenna over to my parents house since they have an atsc tuner in their lcd tv. I cut the cable years ago and i use an antenna i made out of aluminum foil to get about 15 high definition televisions stations in the vancouver, bc, canada area. It appears that the frequency can be adjusted by altering all dimensions by the ratio of newold frequency. With the antenna inside the house, leaning against a wall in the general direction of the canadian feeds based out of toronto, i was able to pick up some analog vhf channels, though they were very snowy. Build your own dtv antenna increase the number of overtheair and soon to be digital television. With the olympics coming up, and my local nbc affiliate being in vhfhi, im finally breaking down and building a gray hoverman fractal antenna. Im hoping its better than the old fashioned dipole antenna. Nov 26, 2017 the design presented here is an alternative to a doublebay hoverman antenna. Most of them are variations on the original grayhoverman design. Grayhoverman, the wideband tv antenna air tv channels transmit on frequencies ranging from 170 mhz to 860 mhz. These designs, schematics, and diagrams are distributed in the hope that they will.
According to the enthusiast in an online forum, the original design of the gray hoverman antenna had a poor swr performance after much research and attempt being. The gray hoverman antenna designs, schematics, and diagrams. A fractal antennas response differs markedly from traditional antenna designs, in that it is capable of operating with goodtoexcellent performance at many different frequencies simultaneously. With the olympics coming up, and my local nbc affiliate being in vhfhi, im finally breaking down and building a grayhoverman fractal antenna. The grayhoverman antenna for uhf television reception.
This is an antenna i made using left over wood scraps and 12 gauge electric wire. Build a massive hdtv antenna for long distance gains. Air tv channels transmit on frequencies ranging from 170 mhz to 860 mhz. I made a shape similar to the square shooter and after much tinkering ended up with something that was slightly better than the other antennas i built but around 9 x 9. Contents performance predictions specifications nec2 files montecarlo simulations a narrowband hoverman a wideband hoverman. The hoverman antenna was invented in the 1950s by doyt hoverman before the advent of computer modeling, and appears to be a variation for uhf of the much earlier chireixmesny shortwave antenna. The actual grid is 12 inch, but 4nec2 coughed at so many wires. Summarizing, these new designs use additional rods or screens to optimize the antenna including. Fractal antennas are the latest and the most advanced designs. Feb 08, 2009 25 thoughts on gray hoverman uhf antenna sly says. Schematics of the rev1 versions of these antennas are shown below. Grayhoverman, the wideband tv antenna one transistor. So just push the channel master curve a little to the left to see how a retuned design might compare.
The light green line is the simulation response of this particular antenna design at 566 mhz using a 3 x 4. It only covered the lower part of uhf, from 470 to 720 mhz 21 52 channels. Only recently that i had the time to construct an antenna again. Dec 21, 2017 grayhoverman is an easy to build wideband uhf antenna. Diy digital antenna new 1868 best electronics ham radio electric and more images on.
Aug 09, 2017 this feature is not available right now. So its curve may be closer to that of the gray hoverman. John e davis has several antennas based on gray hoverman. Wooden board, 1by4, 4 feet long6 machine screws, 14 inch, 34 inch long6 nuts, 14 inch12 washers, 14 inchelectrical wire with insulation removed, 14gauge, 10 feetmatching transformer, 300ohm to 75ohmcoaxial cable, 75ohm, 12 feet longpower drill and 14inch. The design presented here is an alternative to a doublebay hoverman antenna. How to make a fractal antenna for hdtv dtv plus more on the. Just for fun, i took a 3 yard roll of aluminum chicken wire and used it as a directional antenna with the rca balun. It is the best receiving dipole, because it has the greatest bandwidth. I was thinking of tinkering and building my own outdoor antenna. Mainly because most antennas work pretty well across the. A grayhoverman antenna is a cheap antenna with good range for picking up tv channels over the air that you can make yourself in about an hour.
Stripped a 12 gauge wire and wrapped it around tight. Gray hoverman hd antenna, ota before actually making it, id like to know if anyone else here has made one, or tried one out, any experiences or suggestions really, ive never worked with antennas, and i imagine that they can be tricky to get right. How to make a fractal antenna for hdtv dtv plus more on. The gray hoverman antenna for uhf television reception march, 2008 this project is dedicated to doyt r. Gh10 is a single bay gray hoverman gold standard data from j3d dbgh is a double bay gray hoverman data from 300ohm is for channel 51 antenna not designed for 52 and higher the announcement i made earlier today is about a new variant of the sbgh and dbgh antennas that also get great vhfhi gain. Hobbyists create gpled diy super tv antenna slashdot.
Normally standard antennas have to be cut for the frequency for which they are to be usedand thus the standard antennas only work well at that. The gpl does not apply to any new drawings of the grayhoverman designs. Aug 07, 20 i had chosen the gh10n3 version of the gray hoverman. Feb 21, 2010 since the ball had started rolling in constructing antennas previously for my wireless client and the access point, i began to search for a good high gain uhf antenna. Gnu general public license as published by the free software foundation. I built this db4 antenna, also called a bowtie antenna, to increase the rang of signals i could pick up over the basic rabbit ears antenna. By adding some additional elements called narods you can also receive vhf band.
There are several variations on it since it was first proposed about 60 years ago by its creator. Sooner or later you will have to compile some software from. I builtwill build a gray hoverman antenna and i am. I decided to build the gray hoverman antenna after seeing the published simulation results. This is a easy tv antenna to build picks up vhf and uhf. How to make a grayhoverman uhf antenna know about life. After a while, my attention was immediately focused on a little known, at least to me, gray hoverman antenna. The grayhoverman antenna designs, schematics, and diagrams make your own long range tv antenna. What made me attracted to this design was the high gain plateau that covered most of the channels im. The gray hoverman antenna construction for meteor observation. The average gain in this frequency range is dbi with reflector and 9.
Canadian antenna buff autofils, speculating in an online discussion of build it yourself antennas on the digital home web site in early 2008 on the possibility of experimenting with the old hoverman antenna design, sought out old sparks, another canadian antenna enthusiast, who used 4nec2 computer antenna modelling software to model the. Didnt have an fm antenna for the stereo in the shop, this thing works wonders, total cost zip. Thus, one may ignore the word designs in the preceding paragraph. Looking for advice on building an sbgh antenna among other. I had chosen the gh10n3 version of the gray hoverman. Measured pattern of hoverman tv antenna using wnvt as test signal.
Grayhoverman onlenina designs, schematics, and diagrams are. One that has garnered a lot of attention from diy people is called the grayhoverman antenna. Make a high performance indoorattic dtv antenna kipkis. The square shooter is made up of a number of half circles of diminishing sizes. Sep 06, 2009 so just push the channel master curve a little to the left to see how a retuned design might compare. Current design variants include nearfringe and deepfringe signal areas, wideband and narrowband versions, etc. This antenna has been tested to withstand strong winds for years, but it is not guarantee how strong storms can it withstand. In addition to the foam core board and copper tape, youll also need a really cheap balun transformer which you can get at any electronics store, two wood screws or solder to attach it, and a coaxial cable to connect it to. Gray hoverman, the wideband tv antenna air tv channels transmit on frequencies ranging from 170 mhz to 860 mhz. In fact, rs used to offer an 8 bay version of this design several years ago, but apparently dropped it in favor of various overpriced yagi designs. I live in the fringe area for reception, 44 miles from nyc and 51 miles from philadelphia, and with a decentsized commercial uhf antenna with preamp, i still couldnt reliably get digital channel 31 really uhf channel 26 from philadelphia.
Just for fun, i took a 3 yard roll of aluminum chicken wire and. John e davis has several antennas based on grayhoverman. Farquhar, computer security professional, train hobbyist, and landlord. Best of free pcb design software roundup ultimate graphics designs is your one stop shop for all your graphics and video solutions. Mar 14, 2008 grayhoverman antenna performance designs, schematics, and diagrams join the digital forum discussion grayhoverman antenna performance seeing is believing, so lets examine some of the test result diagrams of grayhoverman design variants, paired with similar class commercialbrand competitors for comparison. The grayhoverman antenna final assembly is straightforward once all the parts are made. Nor do the authors provide the source for their own gpl drawings for anyone to edit. Also included are designs for 4 and 8 pair models, as well as a narrow and wideband version of this antenna.
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