Now, i could try my hand at at building a 6 meter ham radio antenna. Hygain mk6 6meter addon kit instructions 2 hygain mk6 6meter addon kit for hf beam antennas introduction the hygain mk 6 is a 6 meter addon dipole kit that can be mounted on the driven element of any balunfed hf rotatable dipole or multiband beam without affecting the hf antennas performance. This video shows how i made my 6 meter portable dipole using collapsible antennas and pvc. Hello everyone i will like to homebrew a 6 meter vertical dipole. Portable endfed 16010 meters dipole antenna george on 24th feb 2020 this is the 4th or 5th product that i have purchased 4 or 5 items from ni4l. In the interest of preserving the privacy of the responders, i have removed names and email addresses.
I do miss having an antenna analyser that works at vhf. A much better type of antenna then a simple quatre wave and that has more gain is the 12 wavelength vertical. Mike furrey wa5pok4 april 17, 2014 brandon amateur radio. Since any dipole is considered a balanced antenna, it should be used with an air wound choke. Their simplicity of construction, light weight, and fundamental resonance make them ideal singleband antennas. The currents are so close that we can treat them as a single 2 length of wire. Download the instructional pdf at the following link. This video slideshow shows how i built my portable 6 meter dipole antenna.
There are many versions of the offcenterfeed dipole that said, the ocfd has a important place in your or ocfd being sold. Dipole resonance is lower in frequency dipole too long. Stealth antennas the columbia amateur radio club presents. I am sure the site where the pictures and your page is located is down at this time. The design of this 6 m dipole antenna shall include the following design considerations. A 6 meter dipole antenna will operate best at 51mhz, useful in many vhf applications.
Vhfcontesting optimum 6 meter yagi height summary long. These will also work, but will require playing with the inductor a bit to get the antenna to tune on 6 meters, and. I would like to try this as a folded dipole at 20, no tuner, raised ends. Resonant halfwave dipoles range in size from about 16 feet for the 10 meter band 2829. The end fed feature adds convenience, but does present another issue. Construct a multiband offcenterfed ocf dipole covering the 40, 20, 15, and 10 meters amateur radio bands, and possibly the 6 meter band but that is considered a bonus band, outside the main project objective. I also tryed to get the web page but it also will not download. Feed point impedance is high and requires a 41 balun. The slick six 6 meter dipole can be supported from good solid pvc pipe at the center using ubolts fastened over the pipe thru the center insulator or you could use metal pipe and adjust the length to fit your mounting configuration. Usnerdoc kf7etx homemade 6 meter dipole antenna update project complete. Why i chose a folded dipole the folded dipole has a slightly better swr bandwidth than a conventional single wire dipole.
Aug 07, 2011 usnerdoc kf7etx homemade 6 meter dipole antenna update project complete. Mike furrey wa5pok4 april 17, 2014 brandon amateur radio society. Wire gain antennas for 6 meters get some gain on 6 meters without investing in a beam and rotator. Now we get into a bit more complicated procedure as it involves a couple more knife switches, a relay switch, and some additional capacitors 60 meters a 128pf, 30 meters 104pf, 15 meters 44.
Dipole antenna, off center fed, 8075, 40, 20, 17, 12, 10, 6 meters. Aug 06, 2014 i built the dipole and did some testing using my k3s builtin swr meter. The longest dipole that i can fit on my terrace, albeit with a dog leg between the dipole halves, is 2 x 10 m 2x 33 ft, i. Jpole antennas are said to have greater lowangle radiation and gain versus a halfwave dipole. Ocfd maxtm 80 bands covered 80, 40, 20, 17, 12, 10, 6 meters 15 meter coverage may be added at any time by installing the optional 15 meter element kit. Our 6 meter rigid dipole is a very portable centerfed 12 wave antenna that can be used vertically or as a horizontal antenna.
A short, offcenter fed dipole for 40 m and 20 m by daniel marks, kw4ti version 2017nov7 abstract. This is easier to remember since 234s digits are sequential, so just remember that one and convert up when needed. The lkj wednesday night special antenna by john whiteman. This project shows the 10 meter dipole in the horizontal configuration but may also be installed in the inverted v fashion. Antennas free delivery possible on eligible purchases. Robert witmer, w3rw in august 1995 i came across an old clegg venus 6 meter ssbcw transceiver a 1960s vacuumtube rig. A short, offcenter fed dipole for 40 m and 20 m by daniel.
It is a half wave dipole designed for the center frequency of 28. The lowest frequency at which a dipole is resonant is known as its fundamental resonance. Ive looked at it several times as i have studied to plan and build my own 80 meter ocf dipole. Available for 2 meter ham, murs, marine, weather or railroad. Extended double zepp is simple to build, center fed antenna with 3db gain over a dipole formula. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun. Did some slight adjustments to the length and were now all set to compare the vertical dipole im currently using and the horizontal dipole in the attic. Build a space efficient dipole antenna for 40, 80 and 160 meters. Off center fed dipole feed point is 2033% from one end. Conditions are expected to improve in the near future as solar cycle 24 progresses, so it seems a good time to add a 6 meter antenna. The measurements below are for building a simple dipole antenna. No endorsement may be inferred from the mere listing of a url or link. Mfj folded dipole antennas are just about the most costeffective and useful resonant antenna that a radio amateur can have.
The frequency devices 10n6rdb take the halfwave dipole a step further by working on two bands with one feed line. Just what is a dipole antenna, and why are they so popular. Give your signal extra punch on amateur radios magic band. Lets build a vertical antenna for 6 meters today by modifying an old radio shack cb antenna. It must be made of durable, high quality, weather worthy components. Usnerdoc kf7etx homemade 6 meter dipole antenna update project. End fed 6 40 meter multiband hf antenna introduction this project produces an inexpensive, multiband, end fed hf antenna matchbox that is quick and easy to setup and use. Get on 10 meters fast with this basic 10 meter dipole project.
In free space the centerfed halfwave antenna has an input impedance that is a close match to 50 ohm coax and to most radios that have a 50 ohm output impedance. Once again the antenna was shipped and received with in a few days. Sold by crs communications and ships from amazon fulfillment. The problem with an end fed half wave antenna is that the antenna presents a high impedance, creating a. Ver2calwireantenna actuallyaver2callyorientated resonate12wave dipole with theearthbeingthe return half duetopoorground conduc2vitya. I have been giving thought to setting up a six meter antenna with horizontal polarization. May 27, 20 hello everyone i will like to homebrew a 6 meter vertical dipole. I started to download the article here to start converting it to pdf but none of the pictures will load this morning dec212002. Jul 06, 2012 kf7etx 6 meter dipole antenna youtube usnerdoc kf7etx homemade 6 meter dipole antenna update project complete. If the best swr is at the high end of the band the antenna is too short. Inverted l 1606 meter band hf antenna swl dipole marconi.
About a dipole for 6 meters band the resource is currently listed in in a single category. When constructing a dipole antenna, the starting point will always be the frequency, or wavelength, the antenna is designed for. Fed at 34% from the end, it uses a single feed wire and can be resonant on more than one band. I had another wire antenna covering from 10 to 20 meters, but i couldnt install it very high. Fill the hole in the top of the pl259 with hot glue, silicone, or liquid electrical tape. Jun 11, 2008 it is a half wave dipole designed for the center frequency of 28. Portable endfed 16010 meters dipole antenna ni4l antennas. If metal pipe support is used, dont short either side of the dipole to it. Most mobile cb antennas these days are quite short with a hefty base loading coil.
On june 28 i sent a message to this reflector asking for information on the optimum 6 meter yagi height. Portable endfed 406 meters polystealth dipole antenna. Buy portable endfed 40 6 meters polystealth dipole antenna. The elements are 12 aluminum tubing with 38 inch tube that slides inside the 12 inch. We are not accepting backorders at this time due to unpredictable leadtimes. A short boom, wideband 3 element yagi for 6 meters l. To use an antenna from 80 meters to 10 meters, the feedline should be in odd 18 wavelength multiples on 80 meters. The folded dipole variation of the antenna employs wires that are folded back upon themselves for a more compact antenna. Having recently expanded my amateur radio collection to include 6 meters, i found myself needing something more than the wire dipole antenna i originally installed. Neverteless, it makes a great antenna for emergency or on the cheap. In the pictures the bottom horizontal aluminum tubing is a halfwave dipole tuned to 10 meters that is all set to be fed with your 50 ohm coax.
In other words, a greater portion of the band is available at less than 1. If you execute on this last procedure you will in fact have a true multiband antenna from 8010 meters. Design and build a 6 meter 2element moxon antenna mostly from available aluminum tubing and angle stock. I sent emails to a number of active 6 meter hams but received only one response, which came from jon jones, nojk, of wichita, kansas, who has been on 6 meters since 1970 and has operated with an indoor dipole since 2000. When it came time to lay out the low band dipoles, taking advantage of the tallest and most. Six meter rigid dipole click on photo for larger view 6 meter 12 wave dipole base antenna. Six meters 5054 mhz is also known as the magic band by hams who enjoy. Mfj1779c 20 6 meter dipole antenna introduction the mfj1779c onehalf wavelength, singleband, dipole is a centerfed antenna that can be tuned for operation on any frequency between 6 meters and 20 meters. Newbie tip remember if the best swr is at the low end of the band, the antenna is too long. A moxon beam can be expected to provide approximately 5. In free space the centerfed halfwave antenna has an input impedance that is a close match to 50 ohm coax and to most radios that have a. Claims of gain from 1 to 5 db are seen in writeups, but are not substantiated by sophisticated measurement and good theory. I was missing the 30, 17, 12, and 6 meter bands, as well as 160 meters.
Six meters 5054 mhz is also known as the magic band by hams who enjoy the magic of hftype long range communication on vhf during the summer sporadice opening. Faqs, tips and guides for getting more field day qsos by. The 6 meter dipole uses the same parts as the 10 meter model, less the 6 foot length of. About 6 meter horizontal dipole the resource is currently listed in in 2 categories. How to make a folded dipole antenna for 6 meters know about. A 6 meter stealth antenna or you never know whats lurking in the woods gary depalma ac8ne. Fun with matthew kg7fhr on the 6 meter band as he makes his first 6 meter qso. The effective radiated power limit in the 60 meter band is raised by 3 db, from 50w pep to 100 w pep, relative to a halfwave dipole. L ft 1170f mhz feed with open wire line and a tuner, this antenna will function on 20 6 meters. Id looked at a number of the loops and squaredoff dipoles, even came close to buying a delbert loop at hamcom. This 10 meter dipole project will enable you to start using your new hf privileges as a technician class operator on 10 meter ssb between 28.
Tentative arizona 6 meter band plan 5154 mhz using both present arizona 1mhz splits, and arrl 500khz splits. Short 40 meter dipole linear loaded dipole for 7 mhz. Hygain mk6 6meter addon kit instructions 2 hygain mk6 6meter addon kit for hf beam antennas introduction the hygain mk 6 is a 6 meter addon dipole kit that can be mounted on the driven element of any balunfed hf rotatable dipole or multiband beam. The dipole moment is defined as the vector the dipolemoment magnitude p qs determines the. Folded dipole page 4 radiation characteristics the common folded dipole has the same radiation pattern as a standard 2 dipole, since the two \arms of the folded dipole carry identical, halfwave sinusoidal current distributions. I thought that others might want to see the replies i received, so i am including them here. The 6 meter dipole uses the same parts as the 10 meter model, less the 6foot length of. L ft 1170f mhz feed with open wire line and a tuner, this antenna will function on 20 6 meters may need 6 meter tuner easy to build since some tuners, especially autotuners, may have a limited.
If another type of antenna is used, the station licensee must maintain a record of either the antenna manufacturers data on the antenna gain or calculations of the antenna gain. I have not been able to find a solid design with the proper info on the web. The lkj wednesday night special antenna by john whiteman k5lkj a shortened 50 foot 80 meter dipole radio antenna note. This antenna can be easily and quickly set up and disassembled in the field. Put the antenna in the horizontal plane in an open area, preferably outside. The main category is homemade antennas for 6 meters band 50 mhz that is about 50mhz antennas plans, homemade antennas for the six meters. I got the antenna built and up today about 35 feet. Give your signal extra punch on amateur radios magic band with this compact threeelement beam for 6 meters. Six meter dxing for little pistols american radio relay league. I was also concerned about what the neighbors might say if i installed too. Kf7etx 6 meter dipole antenna youtube usnerdoc kf7etx homemade 6 meter dipole antenna update project complete. With a little adjusting of the ends i have better results than i expected. Quarter wavelength dipole is the same, but divide 234 by the frequency in megahertz. We were lucky with a band opening that allowed qsos with arizona.
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