The grayhoverman antenna designs, schematics, and diagrams. 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. This is a safety feature and prevents the antenna arcing to the woodwork, although that is very unlikely to happen if you keep the power levels down. Hoverman antennas seems to be in the article pdf the hoverman, vud sept.
The following two graphs show the performance of the hoverman screen antenna at three uhf frequencies representing the almost the entire range of todays uhf tv band channels 14 51. New grayhoverman super antenna the red ferret journal. Grayhoverman antenna performance designs, schematics, and diagrams join the digital forum discussion the grayhoverman antenna designs, schematics, and diagrams. All the dtv stations in the area are between 65 and 82 degrees at ranges of 7 to 15 miles. There is nothing wrong with the channel master antenna, mainly im just curious if i can construct a better antenna. Dbgh is defined as double bay gray hoverman antenna somewhat frequently. With the olympics coming up, and my local nbc affiliate being in vhfhi, im finally breaking down and building a grayhoverman fractal antenna. Dimensions of homemade hoverman antenna pacific coast. On several web forums one of the leading contributors to antenna design and computer modelling is a guy from delaware, usa with the user name 300ohm who has done a huge amount of work on the gray hoverman, and i also mentioned j3d, who has also done crucial design work on the gray hoverman antennas on his own free time. Dual bay, installed in the attic pointed towards buffalo, and use a two antenna system to get all the free tv required.
I have avoided replicating gh results found elsewhere. The mclapp modified bowties are probably the best all around for capturing nearby vhfhi and long distance uhf. This all came about to finally obtain offtheair ota signals for our tv. This study is to construct and modifying the gray s hoverman antenna to obtain the highest gain thus improved its sensitivity. The tradeoff is that the gain of the gray hoverman antenna falls off rapidly at higher channels, and especially above channel 54, where it has less gain than the 4228. Since this is a dual bay antenna, there are more heavy copper wires going from here to the matching spot on the upper bay.
The two zigzag elements are 10awg copper electrical wire. It looks like a bunch of enthusiasts updated the design for the modern uhf band and renamed it. One of our most searchedon and linkedto subjects is how to make a grayhoverman dtv antenna. Stampeder can you help me with a double bay grey hoverman antenna build i want lengths of the phase lines, spacing of the phase lines. This video shows how i designed, modeled, and built a grayhoverman antenna for tv reception. An analysis of radiation pattern and standingwave ratio swr of the gray hoverman antenna z. In this adorable little video, makers in the making, naomi and noah, show you how, proving that its so easy, even a child can do it with a little prompting from dad behind the camera. Back to the hoverman, a single bay antenna consists of a single elemental pairing, where a dual bay consists of two sets of elements joined together to increase gain. 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. Stack two gray hoverman antennas and the model shows better incore uhf performance than the popular channel master 4228 8bay bowtie antenna. Any information on the performance of the grayhoverman. Grayhoverman, the wideband tv antenna one transistor. The gray hoverman antenna construction for meteor observation.
You can read more about the history of this design on their web page. A photograph of a typical corner reflector is shown in figure. I decided to build the gray hoverman antenna after seeing the published simulation results. The grayhoverman antenna has been designed by doyt r.
The gray hoverman is a very good uhf antenna antenna design. The problem is your cbs channel is being transmitted on vhf channel 12. Increase the number of overtheair and soon to be digital television channels you can receive with a simpletoconstruct antenna. Jan 22, 2015 i recently designed and built a homemade antenna for tv reception. It should be noted first and foremost that i am not an antenna design expert. It appears that the frequency can be adjusted by altering all dimensions by the ratio of newold frequency.
The willingness of so many people to freely share their talent, time and expertise are demonstrated by the free. Hdtv antenna gray hoverman vs fractal bowtie youtube. Resembling a giant insect or alien creature, the antenna eventually fell into obscurity. I already started constructing my double gray hoverman and the homemade preamplifier adl 5602 thanks to serndipity of lumen. The gray hoverman if built right can do slightly better on some uhf frequencies but will not get any vhfok maybe if you live next to the transmitter if you want to really get serious in antenna building then you can move up to custom built yagis. Tinkeringobsessed blog make posts a guide by john park to.
Mar 17, 2008 so a bunch of television antenna heads have come up with a massively improved design for a uhf antenna which they say blows away current designs. Jun 15, 2017 gray hoverman and fractal bowtie comparison. Please note the straight reflector at the top and bottom that is 6 millimeters from the antenna elements. The gray hoverman antenna final assembly is straightforward once all the parts are made. Some sources say they have had better success using a gray hoverman homemade antenna. Please give me a call if you have any questions regarding a tv antenna selection.
Nov 26, 2017 the designs presented on this page are hoverman style hdtv antennas that utilize a gapless reflector making them easier to build than my revison2 designs. Shariff2,3 1school of physics and material sciences, faculty of sciences, universiti teknologi mara, 40450, shah alam, selangor, malaysia. It does look like the one in the picture is over engineered, but it would last for years if erected outdoors. Jun 30, 2010 the gray hoverman antenna is well worth the effort to build. Hobbyists create diy super tv antenna archive high def. Below is link to pdf drawings that you can download showing measurements. What made me attracted to this design was the high gain plateau that covered most of the channels im interested in. We tested the vhf performance of this screen hoverman as well not expecting much. Viezbicke timeandfrequencydivision instituteforbasicstandards nationalbureauofstandards boulder,colorado80302 tt0for v u. I only dare writing this title after try to search 3 times, and found no post about making gray hoverman super antenna from indonesia. Dbgh double bay gray hoverman antenna acronymfinder. The grayhoverman, if built properly, can outperform their equivalent commercial antenna and there are tests that support this.
The antenna has 14dbi at its resonant frequency, and does. Gray designs, schematics, and diagrarrys ore copyr. I test both antennas on at a time in the same spot, at the same height and in the same direction. Note the license information printed on the drawing, which is offered free for. Gray hoverman, the wideband tv antenna air tv channels transmit on frequencies ranging from 170 mhz to 860 mhz. Aug 07, 20 i left the standard single bay gh6 gray hoverman antenna at the rented house when i moved out to my new place. Its literally two pieces of bent copper wire taped to a piece of plywood, connected with a 75 to 300 ohm transformer like this one, stashed behind the entertainment center. How to make a grayhoverman uhf antenna in the 1950s, doyt hoverman designed and patented a television antenna that was sold commercially throughout the next few decades. Jan 22, 2015 this video shows how i designed, modeled, and built a gray hoverman antenna for tv reception.
The idea behind this antenna is to replace my existing channel master 4bay antenna cm4221. Below is a link to the one i built, and it is much simpler than the others i have seen and a lot cheaper to build. Guesstimating an angle of 70 degrees and setting the tv to autoprogram. There are plenty of antennas you can buy to help boost your signal strength, but few of them are as effective as the grayhoverman antenna. How to make a grayhoverman uhf antenna know about life. Very good antenna for both analogue tv and dtv, especially dtv as it outperforms cheap yagis, log, panel and other commercial antennas.
Only recently that i had the time to construct an antenna again. I use the four bar signal meter on my tv to document. I built this antenna to go in the attic and got spectacular results with it just sitting on the floor in an aluminumsided house. 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. Grayhoverman, the wideband tv antenna diy tv antenna. Mar 11, 2008 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. Nvm will be going with a grayhoverman antenna design. The singlebay grayhoverman antenna definitely is a compromise, trading size against performance to yield a small size that can easily be used indoors or in an attic. How is double bay gray hoverman antenna abbreviated. In the past, air tv channels were broadcast on frequencies ranging from 170 mhz to 860 mhz. It is not equivalent to home made bowties it smokes them easily in totally fair and balanced testing, and we will gladly prove it.
In addition to online services like netflix, hulu, and crackle, you can still watch some overtheair channels like abc, nbc, fox, and pbs free of charge, but you have to be able to pick them up. Hoverman in 1959, the device is called a super antenna because it greatly increases the range and number of channels you can pick up. Grayhoverman is an easy to build wideband uhf antenna. I can help you find the right antenna to fit your needs. The following plots show the hoverman at rf channels 7, 9 and. Half wave dipole tv antenna, impedance and gray hoverman. Nvm will be going with a gray hoverman antenna design. The time and effort needed to make the jig will pay off in the. It looks like a bunch of enthusiasts updated the design for the modern uhf band and renamed it the gray hoverman. It is designed for the uhf region, but above channel 54, the gain drops significantly. Jan 18, 2015 grayhoverman is an easy to build wideband uhf antenna. John e davis has several antennas based on gray hoverman. I had chosen the gh10n3 version of the gray hoverman.
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. The reasons were better gain and its dual band nature, uhf and vhf band iii. Im in a deep fringe area and my channel master 4228 with cm7777 preamp signal is scattered at best especially when the leaves are on the trees. While its not original gray hoverman design the dr. The 5 coolest diy tv antenna plans anyone can build. I was wondering if i could get some feedback from anyone using a similar antenna as to its performance. Design of the grayhoverman antenna digital home canada. What follows is a step by step photo shoot of my version of the venerable hoverman uhf tv antenna based on a design from the late 1950s.
This is the current design for my two grayhoverman builds. To our surprise, the antenna has adequate, even superior, performance on the highvhf band channels 7. Receiving all these frequencies is difficult when using a single antenna. Here are some tips compiled from my build of a gh6 antenna having straight narods, but these hints can be useful no matter which of the many va. An analysis of radiation pattern and standingwave ratio swr. This jig makes it easy to form the zigzag active elements needed for every version of the grayhoverman tv antenna, using prepared links of common quarterinch diameter copper tubing. So its curve may be closer to that of the grayhoverman. 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. And while it has proven to be very effective in many instances, it lacks a certain coolfactor. The vhfhi band covers 175 to 230 mhz, while uhf covers 470 to 860 mhz. Hoverman and was invented in the 1950s and it was patented in 1960s. The grayhoverman homebuilt tv antenna can be assembled from common plastic plumbing pipe and fittings.
After a while, my attention was immediately focused on a little known, at least to me, grayhoverman antenna. Shariff2 1school of physics and material sciences, faculty of sciences, universiti teknologi mara, 40450, shah alam, selangor, malaysia 2academy of contemporary islamic studies acis, universiti teknologi mara. Grayhoverman antennas original hoverman variations, incl antennacraft g1483 and radioshack 151627, sbgh single bay gray hoverman and dbgh double bay gray hoverman analyzed for hivhf and uhf performance using 4nec2. The grayhoverman antenna is free, not something that manufacturers can sit on or make decisions about for you. Has anyone made of these lately and is this truly a good. I left the standard single bay gh6 gray hoverman antenna at the rented house when i moved out to my new place. Grayhoverman, the wideband tv antenna air tv channels transmit on frequencies ranging from 170 mhz to 860 mhz. There is a newer designs address this problem by adding narods not a reflector or director to both ends of the antenna. 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 gray hoverman antenna construction for meteor observation z. Exceeded the performance of a channel master 4bay antenna. This antenna has moderately high gain, but its most important pattern feature is that the.
Build a massive hdtv antenna for long distance gains. The gray hoverman antenna has been designed by doyt r. The antenna offers sufficient gain for dvbt, dvbt2, isdbt and atsc reception. 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. Feb 08, 2009 25 thoughts on gray hoverman uhf antenna. And really, coolfactor is what you should be shopping for. Sep 15, 2015 the grayhoverman antenna designs, schematics, and diagrams. Grayhoverman tv antenna reflector rods part 14 steps diy tv antenna, wifi antenna. The grayhoverman antenna for uhf television reception.
Several web pages have sbgh plans, a good example is here. The designs presented on this page are hovermanstyle hdtv antennas that utilize a gapless reflector making them easier to build than my revison2 designs. This is the last of several instructables covering construction of this antenna that receives uhf stations and, optionally, those in the high end of the vhf b. Most often used antennas in this band are dipole or some variant of it, and higher gain is achieved by vertical stacking. Mar 05, 2015 lets examine the antenna in a test setting showing the real azimuth and elevation patterns. Most of them are variations on the original grayhoverman design. Some sources say they have had better success using gray hoverman homemade antenna. So just push the channel master curve a little to the left to see how a retuned design might compare. This massive build, based on the grayhoverman model, can pick up signals from around 60 miles away, making it suitable.
There are plenty of antennas you can buy to help boost your signal strength, but few of them are as effective as the gray hoverman antenna. 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. Any information on the performance of the grayhoverman fractal antenna. Choose your tape cheap is ok and tape your antenna to the board. Gray hoverman antenna ultra high frequency antenna radio. Mar 24, 2016 first tv super antenna gray hoverman in indonesia. Building an antenna for vhf channel 11 and uhf channel 16. It is particularly sensitive in the uhf frequency range, the same range used for the majority of digital television transmissions.
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