80 Meter End Fed Antenna

The DX Engineering DXE-7580VA-1 80/75 meter band vertical antenna is tunable down to 3650 kHz center frequency with 300 kHz bandwidth. 100 watt maximum power. Some TIPS on measuring VSWR and troubleshooting M2 … Antenna Gain: dBi vs. An antenna erected over poor ground (deep shale, granite or desert sand) may appear to be many feet higher over ground than it is. (You can use the above 4NEC2 antenna model to see what happens at specific elevations and bands). What are the directional options for an end fed antenna? The directional options for an end fed antenna include: Single direction - This type of antenna has the least amount of resistance and the longest distance capture for signals in a specific direction. Model Data by Harmonic The following data are for the far field radiation patterns and 3D color views of an End Fed Half Wave Inverted-V antenna with the high point in the center at 40 feet and the ends about 10 feet over ground. Dipole Antenna for 40 and. In the evening when most of us have time to relax and enjoy a little time on the radio, the higher frequency bands are either dead or very crowded. The small VSWR mismatch below. This is an End Fed Long Wire wire antenna that will cover all bands from 160 to 6 meters, including the WARC Bands, as well as 60 meters and MARS frequencies. Vertical antenna nearly always has the advantage on a DX contact due to its excellent ground radial system and low angle of radiation. It's automagical! Many thanks to Mr. It needs no tuner on 40m, 20m and 10m. If you listen to the DX activity on the Low bands, you'd be forgiven for thinking that you're wasting your time unless you have a 4 Square Array, 20 acres of Beverage antennae, a huge Amplifier, and a neck like an anvil. Antenna Project - 2. Results are excellant. The Hy Power Off Center Fed Antenna is a very efficient and effective multi band antenna. Shop with confidence. Hy Power Off Center Fed. HIGH QUALITY - $50. Bow-Tie Dipole Antenna 13 19. But be warned - end-fed antennas can be noisier and also cause more EMC/interference problems. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands only available with an antenna. outputs or end fed. Remember you have to do the same amount to both sides ! Once the SWR is good for the 40 meter band, you can test 20, 15, 10 and 6 Meters. Now I can work on the 10,15,20,40 and even on the 80 meters band without the use of a tuner. MFJ-1984LP, $39. QRPGuys Portable No Tune End Fed Half Wave Antenna - $20 We continue our antenna offerings with this single band, 80m-10m end fed half wave wire antenna. There is no radiation in the right angles to the plane of the array because of cancellation. Volunteers of the Honolulu Emergency Amateur Radio Club (EARC) carefully assemble the 6-40 End Fed matchbox antennas for those who prefer not to build one. Overall length is 40 ft. After several very windy days here the antenna still is a great performer. Order 4-Band 5,000 Watt OCF Dipole Antenna: $698 Special Price: $531 (5,000 watt models are special order only and are made on-demand, so will always take a couple weeks to ship. Each DXtreme comes with your choice of wire radiator length's starting from 33' up to 124', allowing homeowners with more space the ability of improved performance while offering those with. Frequency Coverage: 3. Steve Nichols G0KYA Contents 1. Taking the opposite case, a 40-meter dipole fed with 80-meter energy has a low radiation resistance but very high reactance. Results are excellant. As you all probably know,I use this comercial antenna with a lot of good rapports with my Bitx projects. If you don't specifically provide one then the coax shield will act as the counterpoise. Model Data by Harmonic The following data are for the far field radiation patterns and 3D color views of an End Fed Half Wave Inverted-L antenna with a long, straight radiator at 40 feet and feed point straight down near ground. An overview and where it all started 2. One end goes straight into the rig, often with no feedline, and the other end in the air attached to something as high as you can find. For a coaxial fed, "One Antenna Do All" you can't beat the off center fed antenna. The 92' wire travels up to the main support, about 25', and then horizontally for the rest of the run. Now I can work on the 10,15,20,40 and even on the 80 meters band without the use of a tuner. The size of the vertical element is 2 meters, so it will comfortably fit under the ceiling in the room. The only differences are three: 1. 160-Meter Dipole Height N0GW - Gary Wescom - 1 Nov 2006 During the current lull in solar activity, operation on the 160 meter ham band has become more popular. With a short 6ft counterpoise I have had great sucess with South Africa wide QSO's using 5 watts transmit power. MFJ-1748 80 Meter End Fed Zepp Antenna. These antennas can be mounted horizontally, vertically or as a sloper. HyEndFed multiband 80-40-20-(15)-10 meters band antenna. I normally use this antenna for 40meters where it behaves as a half wave end-fed. The Delta Loop is not only a great transmitting antenna but a low noise receiving antenna. This means that the antenna will always have a feedpoint impedence appreciably higher than 50 ohms and will not require much of a ground system to perform adequately. com in a single category. The G0KYA EFHW - an end-fed half wave monoband HF antenna, plus two multiband versions (New!) A practical, cheap monoband or multiband (new!) vertical antenna that is great for DX and very cheap to build. End-Fed Half-Wave Antenna & Tuner. 1 Customer Reviews. This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Mark pa1ssb heeft een 80 meter qro end fed gebouwd met een tegencappaciteit. Hy Power Off Center Fed. MFJ End-Fed Zepp Antennas. Place a 1:1 Balun on the Antenna end of the Feedline. Using the EFHW for 20m at GB0CMS 3. I will soon begin experimenting with End-Fed Half-Wave Antennas (EFHWA) as described by VK3IL. What are the directional options for an end fed antenna? The directional options for an end fed antenna include: Single direction - This type of antenna has the least amount of resistance and the longest distance capture for signals in a specific direction. MFJ-1748 80 Meter End Fed Zepp Antenna. Thus a coupler is needed to perform an impedance match down to 50ohms. I switched to this antenna using a 1:49 transformer and 130 feet of wire. 30 Watts QRP, 80-10 Meters. McGinnis for their kindly assistance on this project!. The QRPGuys Mini 80m-10m No-Tune End Fed Half Wave Antenna. net Abstract A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. There are three top wires of 25' each, sloping at ~45 degrees from the mast which makes it similar to a 1/4 wave on 80 meters. The light weight and small size make this tuner ideal for SOTA, backpacker and traveler. My 80-10m antenna is very poor to the same location on 20m so I got an NA4RR Hexbeam to supplement the wire antenna is its a great combo. It may load up nicely, but so does a dummy load. In either case, the antenna current (and therefore the radiation) is very small. The Hy Power OCF80 80 meter version shows a positive SWR dip on the following bands: 6, 10, 12, 17, 20, 40 and 80 meters. We offer a variety of multi-band and all-band dipoles that provide great receiving performance with low SWR. ) Buckmaster 7-Band OCF Dipole Antennas are 135 feet (41 meters) long and work on 80, 40, 20, 17, 12, 10, and 6 meters. Notice: Undefined index: HTTP_REFERER in /var/sentora/hostdata/zadmin/public_html/e-imza_emomerkez_net/s739tp/9wc. Hayward and Mr. Find many great new & used options and get the best deals for End Fed Dipole 80-6 meter Portable HF Antenna Matchbox System. 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. Hang it up in a hotel window or string it up in the attic. Antenna performance and 2:1 VSWR bandwidth is site dependent and varies with height above ground and surrounding objects. Ever since Field Day 2015 and the incorporation of the 88 foot doublet and tuned feeder giving a 50-ohm match for 40/20/17/12 meters I decided to see if I could make an additional doublet for 80 and 40 meters using the same concept, a tuned feeder with a correct length of deployed wire. Fed directly with 50 ohm coax this would yield a SWR of 4:1 on 6 meters and 24:1 on 10 meters. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. Sure, end fed antennas have some advantages is erection, but there always seems to be a lot of RF on the feedlines of them. I wanted high efficiency 40 Meter antenna with low-angle radiation. This will vary based on the construction of your 43-foot vertical, its proximity to other objects, etc. On 160 it's a Marconi. The 80 meter wire turned out to be too short so only 20 and 40 meters are useful. The 1944 edition of the ARRL Antenna Manual states that the feedline of a Zepp needs to be approximately a quarter-wave or a multiple of a quarter-wave and that manual gives the circuit requirements for feeding the antenna on the 160 meter, 80 meter, 40 meter, 20 meter, and 10. It is supposed to handle 160 meters to 10 meters which is perfect for my application. The reviews seem to be generally positive for it. The Hy Power Off Center Fed Antenna is a very efficient and effective multi band antenna. ARRL Product Review of the M2 6-Meter HO Loop Antennas. I then observed the signal strength when listening to the local ACS net on 80 meters. Dipole Antenna for 40 and. G0KYA's HF End Fed Half Wave (EFHW) antenna - construction details Introduction The EFHW monoband matching unit (inspired by AA5TB) allows for a half wavelength of wire to be connected, giving a 50 Ohm impedance match to the transmitter (without a ground plane or ATU) at the frequency of operation. The diagram of the N4GG Array shows current distribution. 160 Meter Antenna Experiment. If it isn't end-fed, then it's usually near-center fed and becomes a dipole antenna instead. You may have to register before you can post: click the register link above to proceed. MFJ-1984LP, $39. I have also used the antenna with an L-network tuner on 75, 40, and 20 meters with delightful results stateside. I know a Ham who has an end fed 1/2 wave antenna for 20 meters he uses vertically, but at QRP power levels. 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. The Food Diary of an Average English Man Hi there, please have a look at my blogs and feel free to. In the mean time,I changed my 3-bands wire,for a 5-bands wire. EFHW-8010 Multi-Band End Fed Half Wave Antenna. Some have the big bad beam high in the sky with an 80 meter dipole added. 160 and 80 metres are usually wiped out by noise. 00 shipping included to USA-2013 price) handling 100 w from HEARC while my friend Bob K5YB got their kit. Some houses don't really lend themselves to installing a half-wave dipole. I use it on 40m as well. The GRC-9 and GRC-109 will be quite happy with that setup. Zepp is short for Zeppelin--and that is where they were first used! The End-Fed Zepp is a duplication of the end-fed trailing-wire antennas made famous by the giant airships!. by Gene Preston, K5GP I read Rick Littlefield's article in the June 2008 issue of QST on off center fed dipoles and was intrigued by the idea that the antenna could be extended to cover 80 meters. It utilizes a 9:1 UNUN transformer in order to bring the impedance of the antenna to more manageable values for your antenna tuner. 80 - 10 Meter HF Stealth-Portable End-Fed Wire Antenna - $39. ~$80 ~$70 ~$300 ~$350 Total Switched Antennas Cost Averaged S-Units By Band Antenna 80 Meters 40 Meters 20 Meters. The 80 meter antenna has a reasonably good SWR curve across most of the SSB portion (3. All-Band 80-10 Meter End-Fed Half-wave Antennas. The company’s name is meant to emphasise the high quality standards (‘Hy End’) as well as the concept of end-fed half-wave antenna (‘End Fed’). One is 14 gauge stranded, the other is a smaller, single copper strand. i used to have a full wave 80 meter vertical diamond shaped wire fed at 100ft that didnt work as well. Economy QRP Antenna 80-40-20-15 End Fed w/o a tuner! Contributed by John T. Turn your existing 80-meter dipole into a broadband antenna by simply modifying the feed line. Steve Nichols G0KYA Contents 1. My favorite antenna for portable use is the end fed halfwave or EFHWA. 5-53 MHz (80-6 Meters) An external tuner is needed for a few bands. Hy End Fed Antennas from the Netherlands is run by Rob, PA3EKE and Ron, PA3RK. optimum performance with spacing much greater than 140 feet. 160 Meter Antenna Experiment. By use of feeders about 66 feet in length it is also possible to use the antenna as a Hertz on 80 and a Marconi on 160, resonating it in each band for best signal-to. As typically installed, it is a compromise antenna but great for portable use because it is easy to pack and easy to install. Scanning the "market" I came across advertizing, blogs, and forum threads about a half-size 80-10 multi-band end-fed (i. I have been interested in the Ultimax 100 end fed antenna too. To support an antenna, I have no tower, and only two trees that aren’t too close to a house. But be warned - end-fed antennas can be noisier and also cause more EMC/interference problems. There are numerous reasons why people shy away from trying to put up a good antenna for this band:. worked alot of dx from africa including libya, jordan etc with 100 w on 17M. The sloper's feed point is anchored high above ground near the top of the tower on which sits a grounded HF yagi beam antenna. Only at eHam. EFHW-8010 Multi-Band End Fed Half Wave Antenna. net is a Web site dedicated to ham radio (amateur radio). The capacitor between the antenna and radial junction is replaced with a tapped coil. The antenna is center-fed with coax and should include a 1:1 current-type balun. An in-line balun takes care of potential feedline unbalance and radiation problems. The Elecraft KX-3 tunes it easily on all bands and it competes favorably with a Buddistick. 80 75 Meter Wire Antenna Sizes. With twice the gain of a standard J-Pole antenna, the 2 meter Slim Jim antenna is a J-Pole on steroids! The Slim is an end-fed folded dipole antenna that has a gain of 6 dbi and a nice low RF take off angle. I purchased a preassembled 10-40 meter end fed antenna ($49. In either case, the antenna current (and therefore the radiation) is very small. With a tuner, I can adjust the feed impedance for a 1:1 SWR from 80 to 10 Meters. Note: It is not imperative to feed the OCF antenna at the point shown. If you can double the length of the antenna, it will be more efficient, but you will probably have better results switching to a series resonant circuit as used in the MB-80. The Ultimax-100 consists of a robust matching network which can handle 1500W P. HIGH QUALITY - $50. 30 Watts QRP, 40-10 Meters. Groundplane Verticals (they are generally end-fed 1/4 wave radiators) Verticals and baluns. HORIZONTAL LOOP ANTENNA CONSTRUCTION. I like to use a home made current choke to keep RF from coming back on the feedline. Cul = transformer wire. A shortened multi-band End-Fed Half Wave (EFHW) antenna for 80-10m Steve Nichols G0KYA A shortened multiband antenna, about 23m long, for 80m-10m that offers low SWR (1. The OCF dipole presents a reasonably good match to the transmitter across multiple bands which are EVEN harmonics of the fundamental frequency, including 80, 40, 20, 10 and 6 m bands. Always keep the non-resonant. Xiegu X5105 HF-6 Meter Portable Transceiver. Multiband operation is an option. End Fed Half Wave A dipole antenna that’s fed at one end instead of the middle Very high impedance, 1800 - 5000 Ω. It also works fine on all bands above 40m with a tuner, and even below 40m on 60m, and 80m, although the coax losses will be higher. Dipole Antenna - Balun 9 13. 80 METER DIPOLE 1:1 1500w SSB/PEP 200w CW (125′ 8. Bob said it was a piece of cake to build. The G0KYA EFHW - an end-fed half wave monoband HF antenna, plus two multiband versions (New!) A practical, cheap monoband or multiband (new!) vertical antenna that is great for DX and very cheap to build. 80 Meter Antennas Antenna Projects From The YCCC-- Double-L For 80/160, Two Wire Beverage, A Poor Man's 160 Meter 4-Square, Using a 4 square Vertical Phased Array to improve your 80 and 160 meter signal, -- From The Yankee Clipper Contest Club Verkürzte Antennen-- Short Dipoles and Verticals for 160m & 80m -- From DJ9RB 160/80/40 Meters - 55. Technique; Cart; End Fed Antenna Kits. Dedicated to supporting Amateur Radio Portable Operators. After surveying the trees in his yard that could be used as connection points for the antenna, we decided to go with a corner-fed square loop. 80-10 Meter W7FG True Ladder Line Open Wire Fed Dipole 125' Dipole 100' Feedline 600Ω Open Wire Ladder Line One Conductor from Balun or Tuner to Far End Insulator. This is an End Fed Long Wire wire antenna that will cover all bands from 160 to 6 meters, including the WARC Bands, as well as 60 meters and MARS frequencies. 5K End Fed Long Wire Antenna. McGinnis for their kindly assistance on this project!. Two Alternative L-Network Antenna Tuning/Matching Units. Maybe some of us are regretting about their ISP ( Ex: Celcom broadband in Malaysia ) blocking ports for Echolink. The direction of fire is broadside to the antenna. Using the homemade 400 ohm parallel feeder yields a 2:1 SWR on 6 meters and 3:1 on 10 meters – well within easy tuning range of your antenna tuner to be able to use the antenna on both bands with a 1:1 balun (or 4:1 balun if you end up with an odd. The OCF160 covers the following ham bands. Make an end-fed antenna for 80 metre operation The physical length of any HF antenna is critical to achieving resonance and good performance on a particular band. Because of his size, you won't even notice it in your luggage as you travel. MFJ-1984LP, $39. This antenna works on 80 - 40 - 20 -15 and 10m. The antenna is made out of 100% copper (or silver plated copper if wanted) due to its superior performance over aluminum as a RF conductor. 2019-07-21 After putting up my 40 meter end fed half wave antenna discussed below and reading comments on Facebook about EFHW antennas I decided to do some testing. I am considering added a 75 meter turnstile antenna to my station. Hayward and Mr. 5-53 MHz (80-6 Meters) An external tuner is needed for a few bands. Scanning the "market" I came across advertizing, blogs, and forum threads about a half-size 80-10 multi-band end-fed (i. In one of my recent posts, I described an inverted "L" antenna I built for 80 meters--a band I find difficult to use because of my restricted space. 80 METER DIPOLE 1:1 1500w SSB/PEP 200w CW (125′ 8. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. SSB and 500W CW. The Wire Size can range from 16 AWG to 12 AWG. The Ultimax-100 consists of a robust matching network which can handle 1500W P. 2019-07-21 After putting up my 40 meter end fed half wave antenna discussed below and reading comments on Facebook about EFHW antennas I decided to do some testing. I am now going to order the 160 meter double bazooka and take down the alpha delta. GET A PREASSEMBLED ANTENNA. It is a half wavelength long (10 meter) I put up the antenna between the rain showers and it looks like I had no antenna for 20 meter before. End-Fed Half-Wave Antenna & Tuner. May be used on 40, 20 and parts of 10 Meters without the aid of an antenna tuner in some situations (see VSWR plot below). Antennae for the Low Bands. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. Related Pages: Groundplane Verticals (they are generally end-fed 1/4 wave radiators). Our Hy Power 160-meter off center fed antenna is made with the same material as our 80-meter off center fed antenna. Verticals and baluns. It needs no tuner on 40m, 20m and 10m. A loop fed in the southwest corner will have a few dB (3dB or more) gain favoring the northeast corner. Save 80 meter vertical antenna to get e-mail alerts and updates on your eBay Feed. of the antenna. Install at least 30-60 shallow buried 125. It utilizes a 9:1 UNUN transformer in order to bring the impedance of an antenna to more 262148933514. This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. The GRC-9 and GRC-109 will be quite happy with that setup. Each line around the circle is 5 degrees. The antenna is center-fed with coax and should include a 1:1 current-type balun. • No ground orradials needed -- Effective counterpoise replaces radials, end fed with broadband matching unit. • Automatic bandswitching -- Single coax cable feed, each band is individually tunable, wide VSWR bandwidth. The NI4L end-fed 40-6m dipole antenna is just about perfect for portable operation. The parallel circuit used here was chosen because the antenna is so very small, its radiation resistance so very low on 160m. - 80 Meters each leg 63 ft. 5-53 MHz (80-6 Meters) An external tuner is needed for a few bands. End-Fed antenna for 160-80-40 meters band : resource detail. 4335 Steeles Ave. was founded by James F. 30 Watts QRP, 40-10 Meters, 66 feet. Sure, end fed antennas have some advantages is erection, but there always seems to be a lot of RF on the feedlines of them. If it isn't end-fed, then it's usually near-center fed and becomes a dipole antenna instead. There are numerous reasons why people shy away from trying to put up a good antenna for this band:. Longer wire is always more efficient but is usually best kept under 300 feet as the characteristics of a Beverage antenna begin to show up beyond this length. It is an off centre fed dipole, with 10 feet of vertical radiator. 80 Meter CW Center Frequency: 3. well spaced from all nearby tall towers and antennas. I have documented some of the earlier ones I built in my pedestrian mobile pages. West, Toronto Ontario M3N1V7 Tel: 416-667-1000 [email protected] 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. Dipoles need to be half a wavelength long, locating these long antennas can be an issue, especially when we are aiming for the 80 metre band or lower. Place a 1:1 Balun on the Antenna end of the Feedline. This antenna normally has about a 3 DB gain over a 1/2 wave center fed dipole. If you don't specifically provide one then the coax shield will act as the counterpoise. I switched to this antenna using a 1:49 transformer and 130 feet of wire. Unboxing End Fed 80-6 Meter HF Antenna 200 Watt Dennis Block I've been researching homebrew antennas for a little while and decided to experiment with an end fed multi band antenna I found on. Contains trap design instructions and some construction tips. Before I added 80 meter, I operated that band with a end-fed wire antenna. 392M HF mobile antenna coil all band ham marine mars cap military 80 - 10 meters QSO-KING -- End - $96. On 30 meters disconnect the short black wire from the binding post. The Hy Power OCF80 80 meter version shows a positive SWR dip on the following bands: 6, 10, 12, 17, 20, 40 and 80 meters. Results are excellant. Folded Marconi Tee Antenna 8 10. The QRPGuys Mini 80m-10m No-Tune End Fed Half Wave Antenna. Even tho gh largely neutralized by becoming. Sloping Dipole Antenna 11 16. Of course if you initially deploy a quarter-wave sloper wire for 80 meter operation and then decide to use it on 40 meters - it instantly becomes a half wave end fed antenna. Couple that with the fact that I like to use 80 meters a lot and it a real challenge to find a single antenna that will handle it all. I wanted high efficiency 40 Meter antenna with low-angle radiation. A few months ago I bought a FT140-43 toroid to make myself a homebrew End Fed wire antenna,without the need for a tuner. Here's two new projects from the NØLX workbench. 40m end fed dipole parts list part no. In the end, the answer to an immediate problem became a continuing obsession that has spanned some 20 years. EFHW-8010 Multi-Band End Fed Half Wave Antenna. Crane Antenna Measurements - +12 dB! Discussion in 'Tuners' started by Here's my latest configuration and the tuner signal strength meter on manual pegs high. End-Fed Half-Wave Antenna & Tuner. Hy Power Off Center Fed. EFHW-8010P- 200W Portable or Stationary Multi-Band End Fed Half Wave Antenna This is a 200W version of popular EFHW-8010 End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Figure 1—A bobtail curtain (A) compared to the N4GG Array (B). A Broadband 80/160 Meter Dipole An easy to build single wire antenna for 160 and 80 meters with a better than 2 to 1 swr across the 80 meter band. The finished End Fed Half Wave antenna coupler. Bow-Tie Dipole Antenna 13 19. # hamradio # hamr. Groundplane Verticals (they are generally end-fed 1/4 wave radiators) Verticals and baluns. It is designed as a highly portable wire antenna, easily set up as an inverted V, horizontal, sloper, or in the case of higher frequencies, a vertical […]. Please note the shipping policies and notifications on our home page. Manufacturer of Wireless Accessories - Apparatus - Networks - Digital - Voice Transmission - Reception - Voice - Image - Data Communication Apparatus - CW SSB FT All Modes - HF Portable - Mobile - Telephone. 71 QSO-KING -- End Fed Multi-band Antenna -- 160-6 meters -- Rated 1500 W. This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Make an end-fed antenna for 80 metre operation The physical length of any HF antenna is critical to achieving resonance and good performance on a particular band. outputs or end fed. Shop with confidence. Longwire antennas are typically designed so the lobes of that gain fall in desired directions. i built one for 160M using 180/90 ft. Maybe some of us are regretting about their ISP ( Ex: Celcom broadband in Malaysia ) blocking ports for Echolink. end fed halfwave antenna Working portable demands an easy setup of your antenna. This is an End Fed Long Wire wire antenna that will cover all bands from 160 to 6 meters, including the WARC Bands, as well as 60 meters and MARS frequencies. I tried an 9:1 End Fed antenna and just didn't get good results. The only differences are three: 1. Use Your Tower as a Dual -Band DX Antenna. If this is your first visit, be sure to check out the FAQ by clicking the link above. Not to confuse an end fed Zepp with an EFHWA (End-Fed Half-Wave Antenna) Technically, a true "Zepp antenna" was originally intended as a 1/2 wave single band antenna concept using a 1/4 wavelength open wire feedline matching network. I am a coffee snob too, but that is another story. In the evening when most of us have time to relax and enjoy a little time on the radio, the higher frequency bands are either dead or very crowded. The reviews seem to be generally positive for it. 80M End Fed Zepp Antenna. The X80 is an end fed aluminium vertical antenna, capable of allowing the user to work 80 meters through 6 meter bands using an ATU, also not requiring any counterpoise and can be fed using coax cable. 285 with less than 1. I have a 40 meter dipole which I used to compare reception. Over this span of time, End-Fed users have come up with a group of Magic Numbers. Unboxing End Fed 80-6 Meter HF Antenna 200 Watt Dennis Block I've been researching homebrew antennas for a little while and decided to experiment with an end fed multi band antenna I found on. The light weight and small size make this tuner ideal for SOTA, backpacker and traveler. 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. I wanted high efficiency 40 Meter antenna with low-angle radiation. The antenna can be seen as a dipole except that the feed point is placed at the end (or. An overview and where it all started 2. There are numerous reasons why people shy away from trying to put up a good antenna for this band:. ó , kdyh kdg \rxu pxowledqg hqg ihg dqwhqqd lqvwdoohg khuh lq 6lqjdsruh iru d ihz zhhnv qrz dqg dp yhu\ sohdvhg , xvhg wkh zluh iurp p\ suhylrxv dqwhqqd zklfk lv ihhw orqj ,w zrunv ehdxwlixoo\ , kdyh lw. 30 Watts QRP, 80-10 Meters. A well designed matching transformer at the end feed point facilitates this antenna configuration. and it works great, i used a 4:1 balun and feed it at the 66 ft level. Shea Sr in Nappanee, Indiana in 1983. 80 Meter Shortened Inverted-L Bazooka Antenna- A DOUBLE BAZOOKA antenna is an extremely broad-banded Half Wave Antenna that can operate efficiently across an entire Ham band with little change to the SWR. I use it on 40m as well. For a coaxial fed, "One Antenna Do All" you can't beat the off center fed antenna. A 80/40/10 Meter Doublet Fed With LadderLine. The PEF 160-10 contains a FT-240/61 trifilar wound, 9:1 UNUN (unbalance to unbalance) torrid matching transformer that will match the high input impedance of an end fed antenna into the range where most antenna tuners can produce good performance. My 160-meter ground plane with eight raised radials seemed to work so well that an 80-meter design with four of them (4-square) was the next project. The measurements below are for building a simple Dipole Antenna. An antenna erected over poor ground (deep shale, granite or desert sand) may appear to be many feet higher over ground than it is. A Top Loaded Vertical on 80/160 • Split the difference and load a Tee or inverted L on both 80 and 160 (w/tuner) – 90-100 ft is 3/8λon 80M, 3/16 λon 160M – 160-170 ft is 5/8 on 80M, 5/16 on 160M Radial Systems • Provide a return for the fields and currents produced by an end-fed antenna • The earth is lossy, burns transmitter power. Then connect one side of the meter to ground and the other side of the meter to a short wire (one or two feet long) that rests near the antenna wire from the transmitter. There is no radiation in the right angles to the plane of the array because of cancellation. Zepp is short for Zeppelin--and that is where they were first used! The End-Fed Zepp is a duplication of the end-fed trailing-wire antennas made famous by the giant airships!. End-fed half wave. was founded by James F. unless it becomes too unwieldy by Winding the Wire back on itgelf. No Special Equipment To Purchase Or Construct. Remember you have to do the same amount to both sides ! Once the SWR is good for the 40 meter band, you can test 20, 15, 10 and 6 Meters. Feeding the OCF dipole at a point that is one-third of its. Whether you're QRP backpack, vacationing, emcomm station, or an antenna neighbors will never see, MFJs got an EFHW for you: MFJ-1982LP, $49.