80 Meter Sloper Array

The 6 element Hy-Gain TH6DXX, (which has 3 elements on 15 meters and 20 meters, and 4 elements on 10 meters on a 24 foot boom) and the M2 6 meter beam above it. 80 - Inverted Delta Loop Antenna for 160m. This is a new in the box MFJ 1778 G5RV Antenna Covers all bands, 160-10 Meters with antenna tuner. Until recently, my tower supported a pair of phased 40 meter delta loops. Re-ceive antennas are Beverages to Europe and to North America. spacing and to only increase the coil's diameter. For close in stations I’ve seen up to 4 S units advantage over the half sloper on the big tower. Not a member of Pastebin yet? Sign Up, it unlocks many cool features!. May be of interest that I installed it and on the Saturday evening I heard 2 Canadians on 6m (both VO1's) and yesterday I logged 14 JA's on 20m in just over an hour plus this morning I had a KH6 at a real 589 on my s meter!. 75 MHz, it means the antenna should be approximately 124. com (Mark Coady, Selwyn, Ontario, Kenwood TS440S or Ten-Tec Argonaut II and 40 and 80 meter off centre-fed dipoles, ODXA iog via DXLD) ** JAPAN. Propagation-wise it more closely resembles the 40 meter band. 5 feet to a side. Vertical antennas: a. 6 db better than the inverted vee at 10° elevation the sloper array is 1. The following equipment from the estate of John - K8WDN is being offered to the members of the Madison County Amateur Radio Club. HORIZONTAL LOOP ANTENNA CONSTRUCTION. net is a Web site dedicated to ham radio (amateur radio). A short vertical for 160 meters. By Jeff Katzen & Gary Sloper Hybrid IT is an approach to delivering IT services that matches business requirements and application needs with different IT deployment modalities. Columns list Category/Title, Author, Year, Month and Page. in my case: (crank up) tower for the first 10. 647 MHz) renders the dipole resonant on the 80 (actually 75) meter band, while resistor R has as sole function bleeding off static charges, hence protecting capacitor C. The 40 meter antenna was installed to the NW. The above examples assume exact wavelengths for the bands. There is a remote antenna switch mounted at the 90 foot level. Bought it 2 years ago and it sat in my back yard. 78 - Fan Dipole Antenna for 80m to 6m. The feedpoint impedance of a full-wave loop in free space is aproximately 100-120 Ω with a gain over a dipole of 1. Get the best deal for HF Ham and Amateur Radio Antennas from the largest online selection at eBay. The measurements below are for building a Double Bazooka Near Vertical Incident Skywave (NVIS) Antenna. Designed as 3/2 wavelength antennas for 14 MHz, they provide reasonable performance on many other bands. 10 to 30 meters sloper. Good news is that even though the antenna is between three and five feet from my 80-meter vertical, with the W3NQN filters, I can operate SO2R on both bands simultaneously. How to Build Several Easy Antennas for Amateur Radio. Two-Bands Half Sloper for 80m - 40m How to build a mono band 80 meter 1/2 wave wire an Hy End Fed Antenna;. A 130 foot length of 12 gauge PVC covered stranded wire slopes up from the ground system to the 40 foot level of the 45 foot tall fiberglass flagpole (about 60 feet of wire length) and then proceeds about 70 […]. W8AMZ 160 METER REDUCED 1/2 SLOPER product reviews by real people like you. If you want 75 Meter operation make it 57 ft long. My SWR testing on the second harmonics showed RF and SWR needles swinging up and down together which usually isn't a good indication of an efficient antenna. from 7 o'clock >> clockwise to 5 o'clock. txt) or read online for free. I do a lot of antenna simulation. The Zepp, short for Zeppelin is any resonant antenna end-fed by ladder line. 4 Square Vertical Phased Array Improve your 80 and 160 meter signal without a Yagi! KE4UYP Linear loaded vertical antenna. Again I had to completely re do both gama matches on this yagi and it works great now. On 10 meters, I have 6 elements @ 33 meters, and 6 elements @ 18 meters. So tune for 40, and 80 should take care of itself. 8 MHz called for a coil diameter of 30 in. Severns, N6LF, "Single Support Gain Antennas for 80 and 160 Meters" Severns, N6LF, "Getting the Most from Half-Wave Sloper Arrays" Severns, N6LF, "A 3-Element 160 Meter Vertical Array" Ordy, W8WWV, "Using the Oscilloscope to Make Phased Array Measurements". 2nd Place World SO-6HR. 23-10-2006 15:34. I cut the antenna to 67', use a homemade 1/4" plexiglass T with three slots as strain relief for the antenna's feedpoint. The capacitor C (nominal value 400 pF; effective capacitance ≈ 478 pF at 3. Dimensions guide. using it's own coaxial cable feeder to wrap a coil. 235 - Phased Delta Loop Array for 20m. Most of the records in the contests are only a year or two old anymore. W3DZZ Antenna is a curation of 13 resources about, OH2EC Antenna, W3DZZ - 80 to 10 meter antenna, Trap Dipole for 80 40 20 mt, A Low Cost Multi Band, W3DZZ Multi-band Antenna 80-40-20-15-10m. Two-Bands Half Sloper for 80m - 40m How to build a mono band 80 meter 1/2 wave wire an Hy End Fed Antenna;. Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters. Of course the far field pattern is ultimately additive, but that is determined by the coupling. com Here's an intriguing way to get on 160 and 80 meters with a stealthy magnetic loop antenna. I bought an Alpha delta sloper. The balun is rather easy to make you need only a few items. This is a new in the box MFJ 1778 G5RV Antenna Covers all bands, 160-10 Meters with antenna tuner. The exact shape of the loop is not very important. The capacitor C (nominal value 400 pF; effective capacitance ≈ 478 pF at 3. Tower Pole as a Vertical Antenna for 80m 44 70. The 30 meter band is pretty interesting. Today was "Small Business Saturday" encouraging all to shop with local merchants. I considered several options including an off center dipole, end-fed zepp, and trying to rebuild my inverted-L (that never seemed to work that well). 160m Linear Loaded Sloper Antenna. A yagi is an almost wholly subtractive array since all but one element is excited by the near field. Variations on the Theme. Kopplas till PC via RS-232. Once the antenna system has been resonated, it may pay to experiment with the value of L and the length of transmis- sion line between L and the transmitter. The horizontal loop is very sensitive to ground proximity so it must be located at a height that produces the desired radiation pattern and feedpoint impedance. A Shortened 40-Meter Four-Element Sloping Dipole Array to build a four-element sloper system for 40-meters on a small city lot a similar array for 80 meter. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. One radio was set to even segments, one to odd segments, so they never transmitted at once. Figure 1—Even a 40-foot tower makes a convenient support for a 160-meter half-sloper antenna. Use 75 or 50 ohm cable to feed the centre of the dipole. It will probably be lower than 10m. Sat 22 Jan 1949 - The Sydney Morning Herald (NSW : 1842 - 1954) Page 21 - Advertising. 77 - Capacitance Loaded Vertical Antenna for 160m. using it's own coaxial cable feeder to wrap a coil. For 160 meters, a half-wave sloper. They cover all bands from 80-10 meters with a wide range antenna tuner. Propagation-wise it more closely resembles the 40 meter band. Here it is. A better reason to consider this antenna is for reasonable 80-20 meter use and as a practical thing to try for the 160 meter band. Switchable Antenna 80/160 meters band A switchable antenna for 80/160 meters by IK1ZOY. DESCRIPTION OF K4TX DELTA LOOP. 75 - 160m Inverted Delta Loop. Full size 80 meter inverted vee up 65 feet always worked well for me. 80 - Inverted Delta Loop Antenna for 160m. The design, attributed to David, K1WA, uses 5 dipoles connected to the top of a tower (or any central support), and then sloping away from the tower. com Items from DXLD may. Use this indexed search to quickly find what you'd like to look at and then go purchase the scanned magazines (On CD, elsewhere, or occasionally from some generous download website) or look for the old paper magazine at used bookstores. Roberto Ramirez, CE3CT, from Chile, is a well known South American DXer and Contester who began his ham radio story as a short wave listener. Recently being pondering a 4 slinky dipole sloper array for 80 meters, before I rushout and start buying slinkys I'm just wondering if anyone has tried this? I know its a compromise antenna but due to its loaded nature it would allow me to have a directional antenna for 80 meters without large costs. 79 - Wire Ground Plane Antenna. After trimming, the 80 meter elements were about 4 feet long for a total antenna span of about 76. Contesting and DX Antennas for Restricted Lots 0 10 20 30 40 50 60 70 80 90 • Vertical array has less gain than dipole at high angles. Becomes a killer antenna with four Slopers phased as a unit (9i) with over 6 dBi on 80 or 40 meters. Click on Calculate and the optimum length for that combination will be displayed in feet and inches. Dipole Antenna Calculator. Super Vertical 40/80/160 Vertical-Array by IZ1RFF. Hi Nigel, thanks for the extremely quick dispatch, I received it the following (Sat) morning so less than 24 hours after I ordered it. Weigl OE5CWL Ham Radio, May 1988. 80m or 160m Reduced Half Sloper Antenna by W8AMZ. As it is insulated it can be placed in trees, under eaves or next to house trim even in attics. And these usually boil down to extra elements that have controlled phase angle feed lines, or parasitic elements that have phased signals courtesy of close in mutual inductance. 160m Half-Sloper Double-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. Although the entire array could still be transported in the car, (without taking it apart) it was difficult to get this array downstairs and into the car for transportation because of the "tuning hats" on the 80 meter antenna, and looking back at the decision to add 80 meters to the "farm", it was a bad decision for me. 82 - 300ohm-Ribbon. Amateur Radio has been a supreme way of communications for many ways of getting messages from one place to another for decades!. On 10 meters, I have 6 elements @ 33 meters, and 6 elements @ 18 meters. Click on the thumbnail to view a larger pic. ON4AA’s 80, 40, 20, 15, 12 & 10m CL-OCFD. The 2 turns of coax are wrapped slightly loose around L1, near one end. The HamCalc Legacy. Hassle free! Wide bandwidth and no tuner needed!!!. This version allowed me to contact, in 2 x 45mn, 13 stations JA the evening and some stations W6 / W7 / XE the morning. One leg is 67 ft. KD6WD'S Moxon Antenna Project The goal of this website is to share the experiences of MOXON antenna builders After you build one (try building a small one for 6 or 2 meters) and you'll agree. Recently being pondering a 4 slinky dipole sloper array for 80 meters, before I rushout and start buying slinkys I'm just wondering if anyone has tried this? I know its a compromise antenna but due to its loaded nature it would allow me to have a directional antenna for 80 meters without large costs. We must explore optimum topology for vertical arrays (2, 3 and 4 elements etc. 40 Meters - Two Element Wire Yagi fixed NE at 18 Meters, 1/2-wave Dipole NW/SE at 18 Meters, K1WA 1/2-wave Sloper Array w/ driven element for SW. This antenna normally has about a 3 DB gain over a 1/2 wave center fed dipole. 73 Magazine (also known as 73 Amateur Radio Today) (OCLC 22239204) was a United States-based amateur radio magazine that was published from 1960 to 2003. I welcome any comments on this antenna at. Roberto Ramirez, CE3CT, from Chile, is a well known South American DXer and Contester who began his ham radio story as a short wave listener. A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas. A Shortened 40-Meter Four-Element Sloping Dipole Array to build a four-element sloper system for 40-meters on a small city lot a similar array for 80 meter. MFJ 1778 G5RV HAM ANTENNA COVERS 160-10 METERS. 80 - Inverted Delta Loop Antenna for 160m. 80 Meter Triangle Array. Antennae for the Low Bands. The horizontal loop is very sensitive to ground proximity so it must be located at a height that produces the desired radiation pattern and feedpoint impedance. Tower w/ 2m 34-elements Half wave sloper for 80m at 70 feet off King tower sloping south. 80 meter Sloper array A single wire off the tower like that seems like a great solution for 80 meters for most people but you just do not see it in practice much. Reducing the power to 80 watts was enough to resolve the problem, but not enough to add more 10-meter QSOs to the log. Those hams not blessed with a 40-foot tower can substitute a convenient tree or other support (see Figure 2). 4 Square Vertical Phased Array Improve your 80 and 160 meter signal without a Yagi! KE4UYP Linear loaded vertical antenna. Deacon Dave, W1MCE Marvin Rosen wrote: Some zany thoughts on an 80-10 mtr. 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. 80 Meters - 1/4-wave Vertical. I have also used the antenna with an L-network tuner on 75, 40, and 20 meters with delightful results stateside. Contest University Homepage. Get the best deal for HF Ham and Amateur Radio Antennas from the largest online selection at eBay. DX LISTENING DIGEST 17-45, November 7, 2017 Incorporating REVIEW OF INTERNATIONAL BROADCASTING edited by Glenn Hauser, http://www. Yagi Home Made Antennas JA6HW Sumii's Home Made Tower and Antennas-JA8CMC Tastu's Home Made Antennas-JL8GFB Man's Home Made Antennas farm. It has three full size elements on 10 meters and 4 full size elements on 15 meters. 77 - Capacitance Loaded Vertical Antenna for 160m. A new version of a 1/4L 80 m. Products (Total Items 80 Meter Phased. By far the best, most reliable antenna is a simple dipole. Tower Pole as a Vertical Antenna for 80m 44 70. ' If only one half of it is used it becomes a 'half sloper. They cover all bands from 80-10 meters with a wide range antenna tuner. Antennas, 80 Meter Yagi, How To Build A Relatively Small 2-Element, CQ 1998, Jun. A little low, but generally OK for most 20 meter use. 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. The choices to take an omni directional antenna into the world of beams is to make an array of some sort of additional elements. of wire attached directly to my 15 mt. One thing that I have thought about for 3 years now is to use four 80 meter SLOPER wires off the top of the tower. Even zip cord such as what is used for lamp cords will perform quite well. VHF Antenna 4-element dipole array 136-174 mHz,9 dBd 200W OMNI Direct End Fed Dipole 80-6 meter Portable HF Antenna Matchbox System. The antenna can be cut for any operating frequency, from 160-meters down. I considered several options including an off center dipole, end-fed zepp, and trying to rebuild my inverted-L (that never seemed to work that well). Today was "Small Business Saturday" encouraging all to shop with local merchants. Most of the records in the contests are only a year or two old anymore. Coaxial cable matched with antenna with help of length of two wire line. 160m Linear Loaded Sloper Antenna. Here is a small collection of EZNEC files of antennas I have interest in. My EZNEC simulation at 3. The array is fed by a Comtek System s ACB-40 Hybrid Coupler (thanks to Jim, K4SQR, for all the help! That's how I learned how to make it work, and the comments of many on the Towertalk reflector). I do a lot of antenna simulation. The radiation pattern and basic properties (impedance, directivity) are presented along with plots, graphs of the radiation pattern. Getting a Big DX Signal on 160-10 m from One Small, Low Antenna by Chuck Counselman, W1HIS YCCC Scuttlebutt April 2008 Page 3 The photo is hard to understand, so here’s a scale drawing. My only reason to operate 80 meters is to contact hams on the west coast; stations I might not run into when operating the higher bands. A blog of text generated automatically with Markov chains trained on James Joyce's Ulysses (and on a rotating series of other texts). Luckily, 160 meters (at the other end of the spectrum) produced 32 QSOs to counter-balance the statistics. Sep 13, 2017 QST has announced the winners of its 2017 Antenna Design Competition. Wires: 30m inverted V, 40m 1/4 sloper, 80m 1/4 sloper, 160m 135' wire snaking around back yard. This is one of the biggest emergency communications exercises in the country and it attracts thousands of amateur radio operators to field day sites throughout the United States and Canada. One of the easiest and least expensive antennas for the amateur radio operator is the sloping dipole or "sloper. 240 - Broadband Short Dipole for 80m. Kopplas till PC via RS-232. This page uses the standard formula, 468 / f MHz to calculate dipole lengths. txt) or read online for free. 68 - Two-Bands Half Sloper for 80m - 40m. The 6 element Hy-Gain TH6DXX, (which has 3 elements on 15 meters and 20 meters, and 4 elements on 10 meters on a 24 foot boom) and the M2 6 meter beam above it. Another antenna added from the antenna plan is a 160 meter ¼ wavelength inverted L. DX Engineering is your #1 source for wire antennas. Stew Perry Topband Challenge 2007 Dec 29 Comment Summary. About Half-sloper antenna for 40-80 The resource is currently listed in dxzone. The antenna can be cut for any operating frequency, from 160-meters down. •80 Meters dipole with part of the open wire doing the "make up" section •40 Meters - 2 "Half waves in Phase" with part of the open wire doing the make-up section. The Sloper Array, and its Evolution. Half-Sloper Antenna for 160m 41 66. Die erwähnten Abbildungen finden Sie im englischen Original, ebenfalls auf unserer Homepage Dipl. The actual wavelength of the Australian 80 metre band is about 81 to 85. com in 3 categories. Two-Bands Half Sloper for 80m - 40m 42 67. I live on a city lot (less than 1/3 acre) with a tower in the middle of the lot. The page on the "classic dipole" also. In this video, Kevin Loughin builds, erects, and uses a 6-foot/1. net is a Web site dedicated to ham radio (amateur radio). How to Build Several Easy Antennas for Amateur Radio. 43 7 Helical Antenna for the 20- meter Band: by: Igor Grigorov, va3znw The described below Helical Antenna for the 20- meter band has small. • Tower 3: 4 element 40 meter yagi – A four square array is available to augment the existing beam • 160M: all three towers can be shunt fed and phased • 80M: Four-square vertical array • Two Steerable Wave Antennas have been installed at the edges of the property providing low noise receive capability for 160, 80 and 40 meters. 77 - Capacitance Loaded Vertical Antenna for 160m. Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters. I do a lot of antenna simulation. VHF Vertical that I've had for years. At the site was an existing G5RV-type antenna which provided coverage on 80, 40, 20 and 10 meters (more or less) - but it didn't provide 160 meter coverage (mostly useful during winter months, after sunset) and this G5RV was not taking full advantage of the 65 foot tower on site, being anchored near the top, but sloping down toward ground that. 80 meter sloper array, Rick Markey <= 80 meter sloper array, account custodian; Previous by Date: Grade LE Phenolic Insulators. The 40 meter antenna was installed to the NW. It is a dual feed array, one coax for 10 meters and one for 15 meters. A loaded dipole in the attic would work but not nearly as well as the Vee antenna. If you have tall trees as I do, 80 meters is not out of the question. It may be open line or two wire line in plastic insulation. This simplified arrangement has several advantages, including a shorter ground distance between the ends. Fungerar även som RF generator. 80m or 160m Reduced Half Sloper Antenna by W8AMZ. The price of onions reached an unheard of 80 rupees per kilo in 2015 causing serious political alarm. Summary: There is lots to be done. I constructed two 80 meter center fed dipoles and one for 40 meters. Of course there are far better antennas for 80 meters than either a half sloper or inverted-vee. Severns, N6LF, "Single Support Gain Antennas for 80 and 160 Meters" Severns, N6LF, "Getting the Most from Half-Wave Sloper Arrays" Severns, N6LF, "A 3-Element 160 Meter Vertical Array" Ordy, W8WWV, "Using the Oscilloscope to Make Phased Array Measurements". In small spaces, vertical antennas are very attractive. Fig 1B shows some other pos-sible element shapes. Read honest and unbiased product reviews from our users. Super-Sloper Antenna 44 69. A yagi is an almost wholly subtractive array since all but one element is excited by the near field. Any proceeds were to go to the Club. The following equipment from the estate of John - K8WDN is being offered to the members of the Madison County Amateur Radio Club. Formula Dipole total Length = Amount / frequency Each leg of the dipole = Dipole Total Length / 2 Inverted Vees total length = ( Amount / Frequency ) * Percent Each leg of the Inverted Vee = Inverted Vees total length / 2 Where, Full Wave = 984 Half Wave = 468 Quarter Wave = 234 This tool will help you dynamically to calculate the total length of a dipole inverted V antenna. Antenne Verticale 18m for 30/80/160m. Use this indexed search to quickly find what you'd like to look at and then go purchase the scanned magazines (On CD, elsewhere, or occasionally from some generous download website) or look for the old paper magazine at used bookstores. The Delta Loop array used at my QTH is a simple and inexpensive way to achieve substantial gain and reasonable F/B ratio. The goal was to make it short enough that it would work well in portable applications as a vertical or sloper hung from a tree. The DOUBLE BAZOOKA HALF SLOPER is recommended to be mounted to the top of a tower or metal pole for optimum results. The half-wave dipole antenna is discussed. Bands are changed with help of plug-in coils. The feedpoint impedance of a full-wave loop in free space is aproximately 100-120 Ω with a gain over a dipole of 1. Alaska is a very large place, physically. My favorite backpack antenna is a 40 meter center-fed inverted-vee with an open angle of about 100 degrees; fed with 50' of 440 ohm stranded ladderline. Mounted at 70 feet, the tails of a wire 80m half square will be a few feet off the ground. DX Engineering is the first choice for K3LR station components. 80 Meter CW was pretty reliable. Here is a small collection of EZNEC files of antennas I have interest in. This version allowed me to contact, in 2 x 45mn, 13 stations JA the evening and some stations W6 / W7 / XE the morning. A 43 foot Vertical for 80 and 160 meters. Dual-Band Sloper Antenna 39 63. Today was "Small Business Saturday" encouraging all to shop with local merchants. 76 - Half Rhombic Unidirectional Vertical for 20m to 6m. Nobody really cared that it was strung over the sidewalk. The rest of the antenna wire is pulled down with a rope. I have used both a 40 meter bobtail and 80 meter half squares and was very pleased with them. I have built a number of these on different bands and found the design extremely repeatable. This article presents a 160-meter variation of this family of antennas and, more importantly, a discussion of the details of how to get such. After trimming, the 80 meter elements were about 4 feet long for a total antenna span of about 76. One antenna uses all coax the other uses coax and twin lead for the antenna. Use 75 or 50 ohm cable to feed the centre of the dipole. The main category is Sloper Antenna that is about Sloper Antenna. The design, attributed to David, K1WA, uses 5 dipoles connected to the top of a tower (or any central support), and then sloping away from the tower. We must explore optimum topology for vertical arrays (2, 3 and 4 elements etc. Recently being pondering a 4 slinky dipole sloper array for 80 meters, before I rushout and start buying slinkys I'm just wondering if anyone has tried this? I know its a compromise antenna but due to its loaded nature it would allow me to have a directional antenna for 80 meters without large costs. Build a Space-Efficient dipole Antenna for 40, 80, and 160 Meters (570,975 bytes, PDF file) QST July 1992, pp. The two 80 meter sticks on 80 meters will have very narrow bandwidth, very low radiation resistance, about 4 to 6 ohms, and very low efficiency. Linear Loaded Sloper Antenna for 160m 43 68. The small mast through the roof on the left supports the top wire to the house. Dayton Contest Dinner Homepage. The K3LR team is 100% powered by Icom radios. It was reasonably directional and, although signal strength was way down, it was much quieter than the sloper. The RTO's Wiki Links Page The following Wiki links are to pages useful in the study and understanding of all things radio, and includes far more than you will need to pass your exams. A mark of 80% is a substitute for Morse competency since 2005. Feed (Carr N4PC), CQ 1992, Sep t pg 40 Antennas, Ham-Pro 15 Meter Beam (McCoy W1ICP), CQ 1992, Jan pg 24 Antennas, Ham-Pro H144-15 2 Meter Beam (Lynch N6C L), CQ 1992, Dec pg 59 Antennas, Hatchback Mobile Dipole For 2 Meters (Hart AD1B), CQ 1991, Apr pg 42 Antennas, Helical Quad (White K3WBH), CQ 1981, May pg 36 Antennas, Helix For OSCAR 10. Place a 1:1 Balun on the Antenna end of the Feedline. I was able to pull European 80 meter signals out of the noise with the EWE that were not copiable on the sloper. 40m 2-element Wire Beam: Parasitic Phased Array Conversion Updating the 4th-Generation Stealth All-Band Electrically Reversible Directional Array Jeff Blaine - ACØC Presented to the KC DX Club - 25 April 2011. • Stainless hardware, UV resistant materials throughout End-Fed Horizontal Wires (EFHW) cover multiple bands without traps, stubs, or resonators. Inverted Vees are popular for multi-antenna installations where a rotatable yagi or log periodic is mounted on a tall tower for the high end of HF, and a long Vee is hung with this tower in the center. On 80 and 160 meters an antenna with array. One of the easiest and least expensive antennas for the amateur radio operator is the sloping dipole or "sloper. Input impedance for a classical Vertical Ground Plane Antenna is 30… 33- Ohm. what fish could be caught with this array. 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. The NE EWE could now hear - at least on 80. 1λ ) and the element span for a 20M version is also ~28' but it differs from the Moxon by driving both elements out-of-phase with a phasing line. Theodore J. Dayton Contest Dinner Homepage. The 160m vertical will be an inverted L as even our tallest trees are not quite 40m - more like 30m at a guess. My EZNEC simulation at 3. Also on the tower is an Alpha-Delta DX-A 160, 80, 40 meter sloper. 237 - Collinear Array 5dB-Gain for 15m. Here is what I was thinking:. Linear Loaded Sloper Antenna for 160m 43 68. 80 meter half sloper antenna manual. The current distribution of the antenna and matching line is shown in figure 1. 55% on a turnover of 710,900 kuna on the VSE. John Koszeghy, K3BB (ex-K2OB) has had a love affair with quad beams for 45 years. 6 db better than the inverted vee at 10° elevation the sloper array is 1. It's a multi band. The 2 turns of coax are wrapped slightly loose around L1, near one end. The coaxial dipole antenna is perfect for stealth work. Find helpful customer reviews and review ratings for ARRL's Wire Antenna Classics at Amazon. A better reason to consider this antenna is for reasonable 80-20 meter use and as a practical thing to try for the 160 meter band. net is a Web site dedicated to ham radio (amateur radio). Inverted-V Beam Antenna for 30m 40 64. ANTENTOP- 01- 2013 # 017 Ferrite Magnetic Antenna for the 160 and 80- meter Bands Vladimir Fursenko, UA6CA and Ashot Bazoyan, UA6ACA Credit Line: www. It was reasonably directional and, although signal strength was way down, it was much quieter than the sloper. The half-wave dipole is very simple to construct. Here it is. The price of onions reached an unheard of 80 rupees per kilo in 2015 causing serious political alarm. of wire attached directly to my 15 mt. 160m, 80m, 40m Curtain Zepp Antenna. The End Fed Half Wave antenna described is a very good choice for those operators who have limited space and require an effective radiator. I’m considering an array of quarter wave LF verticals sharing a common feeder, earth mat and tree top support: The design is based on a receiving antenna shown in The Radiotron Designers Handbook of 1953. ' If only one half of it is used it becomes a 'half sloper. As a bonus, this antenna works even better at higher frequencies, where it's electrically much farther above ground, as I'll also discuss later. DESCRIPTION OF K4TX DELTA LOOP. That is, they really need an extensive array of ground radials to work properly - not easy to put down when you are in a hurry. I was very happy to find that the SWR was under 2. I settled on a straight forward dipole cut for the lower part of the 80 meter band. The HamCalc Legacy. Over the past few weeks, I've built several 30 Meter antennas for my new house lot in the Puna District, including an inverted vee, a ground plane, a delta loop, and even an inverted "L". The Delta Loop array used at my QTH is a simple and inexpensive way to achieve substantial gain and reasonable F/B ratio. 73 Magazine (also known as 73 Amateur Radio Today) (OCLC 22239204) was a United States-based amateur radio magazine that was published from 1960 to 2003. Sloper antenna for both 40 and 15m bands cut into tower guy wire. I chose 58' for Mid 80 Meter Operation. It took up 5 city lots. A little low, but generally OK for most 20 meter use. Evolving from a simple end-fed Marconi for 80m, the idea was to use the opposing. Combines the tremendous DX firepower of the 1/4-wave sloper with the wide bandwidth of the 1/2-wave dipole. So for the higher frequencies the ground lead wire needs to be kept short. At the least, a dipole should clear any sur- rounding buildings, and other large obsta- cles, for good performance. For 80 me - ters, there is a K8UR array, an inverted V dipole. Off-Center-Fed Dipole, OCFD, Windom, Whereas a Dipole is a half-wavelength long radiator, fed in the Center of two equal length legs, the Off-Center-Fed Dipole (which I prefer to call a WINDOM) is a Dipole whose feedpoint is at a point removed from the center of the antenna. The takeoff angle of radiation was not too bad. , I discovered that it was working so well that I decided to produce a two-band sloper for 80 and 160. Dual-Band Sloper Antenna 39 63. Scores that used to be viewed as impossible are now common. They are 102 ft. Click on the larger pic to make it even larger. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: