(Please, find a low power unit section at the bottom of. I hear much more than I can work on 160m from my 1/3 acre lot. The intent is to add, in the new couple of weeks. This antenna is unlike most compact antennas with elements running parallel to one another and in close proximity making the elements are tightly coupled, while the completed antenna uses less real estate, there is a great deal of interaction between adjacent elements. In San Diego we have an active 160 Meter group, 1. The Terminated Diamond Loop is at the opposite the end of the house. antenna 6 to 10 feet off the ground will ever work particularly well. T-type 75 ohm FM antenna designed for improve the FM signal for stereo receiver radios, help you get more stable fm signal and stations. Good luck with your low-band antennas! Al Buxton was first licensed in 1937 as W7GLC. Also known as a Link Coupled Matching Network. It will not hurt the antenna's efficiency if you bend the ends of the antenna slightly to make it fit into the space you have. EZNEC (and I guess any NEC) provides the ability to simulate transmission lines along with the antenna elements. The transmitter legally operates with "micro-power" and will not set any distance records but, unlike simpler designs, the frequency stays put and the fidelity is excellent. , depending on a 40m or an 80m/160m Carolina Windom, to handle 15m better and provide a better takeoff angle on some of other the bands, plus feed line isolation…. For some frequencies, a wide range antenna tuner might be needed. On 80m this was the best receiving antenna ever. The all-band doublet horizontal wire antenna has a history almost as long as amateur radio itself. Shorter length counterpoise wires can be used if operation is confined to 40m or higher. Wire Antennas that Work. Building an amateur radio antenna for 160 meters is a challenge. The antenna will work successfully supported by trees, masts, the tops of vehicles or any convenient object or structure. Tarheel Antennas, Inc. The goals of the project were to provide an optimized antenna for 40m, 80m, 20m, and all other HF ham bands, in that order of priority. 160m and 80m Morgain-Dipole Antenna. An SPST switch and a 2. The Horizontal Loop, also known as the Loop Skywire Antenna, is an old but very effective design. On 160M the antenna exhibits better S/N than my DX engineering 4 square receive array. More than three years ago that I have mounted my Butternut HF2V multi-band vertical antenna outside and left it suffer from the windy and humid Danish climate. The larger the wire, the wider the bandwidth. One of the antennas I found described in various articles posted on the Internet was the RCA dual doublet, which looked interesting. RadioWavz Dipole antennas are the simplest practical antennas from a theoretical point of view; current amplitude on such an antenna decreases uniformly from the maximum at the center to zero at the ends. , and are perfect for RVs, vacations, Field Day, or as your go-kit antenna. As the name says, it’s just North America, and with the 100 watt power limitation simple wire antennas should do fine if that is all you’ve got. ANTENNAS 4 de 45. Pacific Antenna Warranty Policy. 5 and 7Mhz) My goal is to optimise this antenna it in the real world for 160 - 80 - 40 and 30 M's Today I will make a big 12V relais with hugh contacts to short out the coils for 160M when I want to use it as a 3,5 and 7MHz antenna. By doubling the size and that's all I can accommodate on my lot, it turned out to be a real multiband antenna for me including the 160m band. Internal beat may occur during amateur radio band reception depending on combination of main band and sub band frequencies of a main unit. I used bungies on three of the four corners, leaving only the corner nearest the feed point without one. Louis Vertical Antenna project. Serious 160 M ops have a listening antenna focused on Europe: 45-60 Degrees. Note: The little box at the bottom of the small one contains an air variable capacitor for tuning. You can work the whole band with a 1. A relatively high radiation resistance is there- fore also retained. No masts or guying are required. The AT5K-HP is for Hams who already have their own power metering systems, but want the power handling of the AT5K. I have collected the questions and boiled them down to 10, all of which have many variations. Since then DXers, ham operators and comerical enterprises, all have raved and ranted about this loop, calling it "miraculous", "stunning" and the antenna that beats anything. The main category is Antenna for 160 meters band that is about 160 meters band antenna. HFEDZ END FED 10m-160m HF antenna (200W) Ham Radio Antenna - $85. More different antenna types appeared in this field of high radio frequencies. Best to have 2 antennas to compare signals! Devote at least a year to test antenna before giving up on an antenna. For example: a normal GPA is able to produce angle's in the order of 16 degrees when it is sitting at the ground, a horizontal placed dipole has to be at 9 meters to does the same thing. 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. This suggests that this Slinky dipole appears to be 20% longer than a same-size wire dipole. The 43 foot 10-160 meter Multi-Band Vertical antenna is a freestanding vertical element with no traps or coils. Included with this antenna system is a rugged, patented* stainless steel pivot fixture for ease of raising, lowering and tuning adjustments. 1/4 λ 160m antenna in suburban backyard. Curtain Zepp Antenna for 160m, 80m, 40m. Amateur Radio (G3TXQ) - Cobweb Antenna. Here is how I managed to get pretty decent results with a homemade antenna. I have consolidated all of the switching of my low band receive antennas and have some goodies left over. Receiving antenna's for PA6Z made by PA9M. Ok, so I now had a 160m antenna that had a VSWR of less than 2:1 from 1810-1860 kHz. 2010 caterpillar 160m awd. It can be deployed quickly and is ideal for use in places where HOA restrictions make full size wire antennas impossible, or where there is not enough room to erect a conventional antenna. net is a Web site dedicated to ham radio (amateur radio). Only US$199. R&L Electronics: Text Questions to SINGLE WIRE SLOPER 160m/80m/40m/30m $106. I take my dipole down every summer prior to thunderstorm season. de: Product Overview and Price List (valid from June 25, 2014) We offer a variety of Log Periodic Antennas, Verticals, Vertical Dipoles, Cubical Quads and a unique Complete HF Antenna System. Our best selling antenna is our 160 meter, ruggedized "half-sloper". HF Dipole Antenna 6m-160m. This antenna would make a great small size 160m vertical. Antennae for the Low Bands. Overview of antennas. Antennas are very seldom very directional at less than about 1/4 or 1/2 wave length above ground except for directional antennas of course. Suburban antenna for 160m. What is a magnetic loop? • Radio waves travel by a wave of electric and magnetic fields at 90 degrees to each other. Homebrew, High Voltage Variable Capacitor for Magnetic Loop Antenna Multi-turn Magnetic Loop Antennas 20m Horizontal Dipole Lives! Using the PC Link Feature of the Mini60 Antenna Analyzer Projects Installed a SignaLink for Digital modes VHF Packet Winlink on the FT-817NDSolved! Review of Mini60 Antenna Analyzer. Wire Antennas for Ham Radio Wire Antennas for Ham Radio. antenna measures only 204 feet across the top for 160 meter - 6 meter operation, and is fed at the center through a low loss 450 ohm twinlead feed-stub. WINDOM ANTENNA. performance of nearby vertical antennas at least 125-250 feet away from all nearby towers and antennas significant antenna pattern degradation increased ground losses tower detuning is possible but it’s a complex task Horizontally polarized transmitting antennas are almost always a poor choice for 160 meter DX. The good news is that for vertical antennas, we can (almost) dispense with the bottom leg. What is it? Put simply, it is an end-fed, longwire antenna that is laid right on the grass. The new AT5K-HP 3500 watt antenna tuner covers 160m to 6m with a power rating of up to 3500 watts PEP. SIDE NOTE: you may notice the model numbers of some of our antennas have weird letters at the end. as I received several emails with questions about the preamplifier which I am using for my LB external RX antennas like W2PM MiniDiamond loop, EWE loop, K9FD loop etc. All information, images, and documents on this website are the sole property of MFJ Enterprises, Inc. The only difference is that the timber mast is replaced with a. While dipoles are very efficient antennas, they are not the only way to go. 5:1 SWR or better without retuning Both Models tune 40m through 15m with 10 Rails (use 7 rails and you can tune 12m and 10m). This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. Carl 's earlier observations indicating th at the best 160m propagation he had ever observed was during the low period between Cycle 22 and 23 and not during the much quieter low period between Cycle 23 and 24 are very much different than my own perhaps because of our different locations. Receivers are much less 'picky' than transmitters and hardly care whats connected to it impedance wise. Alpha Delta Wire Antennas products from Ham Radio. HF9V lightbox HF9V in garden:: 4 20m radials. 95 This shortened 160m sloper is an ideal compromise antenna to get you active on Top Band. Introduction. 160M BPF can be designed with a higher number for 80M isolation with Insertion Loss close to -0. Easy to install and tune. Resources listed under antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. Due to my lack of tolerance regarding cables in the car I decided to put the GPS module into the TM7. 5/5click here to see their performance reports. It was originally designed to operate as a 3/2 wavelength center fed antenna for 14 MHz, but amateurs soon discovered it would offer reasonable performance on many other bands. Antenna height will affect the exact resonance point, radiation pattern, and takeoff angle. AMPRO-160 Why not try the magic 160m band from your mobile with this antenna. However, it is up only about 4m height from a metallic roof. Amatuer Ham Radio Antennas. So it may be necessary to prune helix height after deliberately making it too long. The dipole antenna is said by many to be the perfect antenna for a specific frequency. Contact one of your local Diamond ® Dealers for current price & availability. Amateur Wire Antennas: Dipoles, End-Fed Vee, Trap Dipoles. A common question that I receive is what type of coax cable should I use for my J-Pole antenna. The DXV is our non-stealth HF vertical. A custom designed capacity hat system allows this vertical monoband antenna to get on 160 meters with unparalleled success in in antenna that is only 55 feet tall. A 160 meter antenna for small lot 160 meter antenna My back fence is 50 ft from the rear of the house and not enough room on the property for 80 meter wire antenna must less a 160 meter one, and this to work great with the sloper wire attached to a fence, I also use monofilament (non-conductive) line like fishing or Weed Eater line as support. K9AY is a loop developed in the early 1990's by American radio amateur Gary Breed (K9AY). All Band multiband HF VHF Vertical antenna Ham Radio Amateur US Patented: $295. 160 Meter Off Center Fed Dipole sometimes known as a Windom, if DX is your goal then RADIO WAVZ brings you new technology at an affordable price. He spent 21 years with Goodyear Aerospace Corp, 6 years with Tulane University and Il years. 80m overall length - 134' or 67' per side. Both are designed as smarter, stronger, and more elegant all band options. of the antenna. Operators and Observers. The 43 foot 10-160 meter Multi-Band Vertical antenna is a freestanding vertical element with no traps or coils. com Kenwood sdr. RadioWavz Dipole antennas are the simplest practical antennas from a theoretical point of view; current amplitude on such an antenna decreases uniformly from the maximum at the center to zero at the ends. It all depends on of available room you have to install this antenna. This antenna would make a great small size 160m vertical. EFHW-8010-1K Multi-Band End Fed Half Wave Antenna. The above graphic depicts the overall layout of the loop antenna consisting of 558 ft. 9 MHz continuous and is rated at 2 KW (SSB) , 1. Thank you for putting the NorCal Doublet on the internet. 5 mH RF choke provide relay operating voltage via the feed line. This page gives some answers - from my perspective - of attic and stealth antennas hoping to set the record straight. One of the antennas I found described in various articles posted on the Internet was the RCA dual doublet, which looked interesting. So, a QRP transceiver is. The soil was a very wet, sandy, black loam. An antenna is a device to transmit and/or receive electromagnetic waves. Tower Pole as a Vertical Antenna for 80m 44 70. The DX Engineering DXE-160VA-1 is a slow taper 55-foot high Monoband Vertical Antenna system. EZNEC (and I guess any NEC) provides the ability to simulate transmission lines along with the antenna elements. The mark 3 antenna is electrically identical to the design I published in Practical Wireless in February 2004 and January 2005 and is designed to work on 160m, 80m, 40m, 20m, 15m and 10m and is basically half a W3DZZ tuned against earth with an extra trap and some wire for top band. If you have always wanted to operate the low bands, go for DXCC on 80m or WAS on 160m, now with Voyager, you can. The DX Flagpole Antenna is an HOA approved, NO Radial, Stealth vertical antenna. Serious 160 M ops have a listening antenna focused on Europe: 45-60 Degrees. As far as the original antenna concept of using meandering line for a shorter 160m beverage-like antenna, it turns out to be a non-starter. CQ 160m 2016. They are, simply put, BIG. A Reduced-Size Half Sloper For 160 Meters Here’s a limited-space antenna that will put you on the Top Band! By Don Kirk, WD8DSB, 7821 Bryden Drive, Fishers, IN 46038, e-mail [email protected]
5/5click here to see their performance reports. Most are priced at half original price or less. The smallest antenna described for 80 metres was a magnetic loop. Super-Sloper Antenna 44 69. The PreciseLOOP antennas are for Receive and Transmit use. This means that if the base wire of the antenna goes from north to south, the direction of gain will be east and west. Cheap antenna to make from 160m - 6m pop - The antenna is nothing more than a simple 2. If you want to use a dipole for a band of frequencies, you cut it to the center frequency on that band, and hope it has a low enough SWR at each end of the band. "We think a properly laid out circuit board sounds better than point-to-point wiring, because it eliminates connections that act as antennas for noise," he explained. Since I have lived on suburban lots for the past five and a half years and in an apartment for two years before that, it has been the better part of a decade since I’ve had my own permanent. pdf PDF-Dokument [822. antenna wire. K5WZ Antennas are a product of RFLABS. The Antenna Book suggests the resonator must be a multiple of 1/2 wavelengths at the frequency of the dipole antenna. ULTIMAX offers several antenna designs for stealth operation, we also provided great support in choosing the antenna better suited for your situation. The measurements below are for building a Double Extended Zepp Near Vertical Incident Skywave (NVIS) Antenna. 73 de K5WZ. Paracord, Coax, and Jet Airplane in Photo Not Included. Many qrp rigs have one band only, although in recent years there are more dual band and multi band transceivers. The basic design is inspired with his permission by Larry, W7IUV. Get the best deal for HF Ham and Amateur Radio Antennas from the largest online selection at eBay. In the first couple hours of having it up I was able to hear stations I could not hear before. I am using a 12 volt gear reduction motor with a forward and reverse controller arrangement. You can use this as a review if you like. Louis Vertical Antenna project. Receivers are much less 'picky' than transmitters and hardly care whats connected to it impedance wise. Ideally, this antenna should be at least 35 feet above ground, but mine is currently about 25 feet, and still performs OK. While dipoles are very efficient antennas, they are not the only way to go. 71 - Tower Pole as a Vertical Antenna for 80m. Get it as soon as Tomorrow, Sep 24. Aided by the use of aluminum, not only is the X12i incredibly durable, but it also becomes unnoticeable during wear due to its diminutive weight. 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. Model #: 9006200. The antenna will work successfully supported by trees, masts, the tops of vehicles or any convenient object or structure. , and are perfect for RVs, vacations, Field Day, or as your go-kit antenna. Review (mpn: 160m-10m for sale) 160M-10M Icom Ic-at150 100w Cw 200w Pep Automatic Antenna Tuner Hf At150. In the article below, I’d like to describe the theory and the mechanical build process for a 160m-long multiband loop antenna, including its support system, tuning, and SWR analysis. So it may be necessary to prune helix height after deliberately making it too long. Very much appreciate all the great ideas and recommendations. Back to my Experimentation Page. The capacitor between the antenna and radial junction is replaced with a tapped coil. ANTENNAS 4 de 45. Random Length Radiator Wire Antenna. 1000ft of 14ga AWG wire (7-strand) and some rope make one of the best performing antennas I've played with. TAK-tenna 80 to 6 meter Multiband Antenna. Yep, thats right, the inside wall of the spare bedroom - ideal for flat dwellers, hotel rooms or whinging neighbours, The loop has a simple switched inductance at the top of the square loop and uses a simple coaxial stub to. You can also use these traps to design HF vertical multiband antennas using either wire or aluminum tubing. Click here for Active Antenna Amplifier Ham Kit. 160 meters band antenna is a curation of 141 resources about , Ground System on a 160M vertical, 160m Mobile Aerial by M0VEY, Short antennas for 160m, 160 Meter Antennas at W8JI, 160 Meter Dipole. My TX Antennae. My noise antenna is a 40 to 10 meter multi-element wire-dipole located in the West end of the attic of my home. If you can give me a procedure to test it in some fashion, i'll gladly do so, but I'm not familiar with this model and don't have compatible radio hook up. For sure, an essential condition for this statement is that both antennas are in the same environment (outside the house). I am running the 4 legged and 2 legged Horse fence I bought from you. After my DX-88 died in a winter storm, I have decided to give the Butternut HF2V a try. Dual-Banding your 40m vertical for 15m. Hence the name. Only 2 left in stock - order soon. 7) KD9SV 160M pHMET FET Ultra Low Noise Preamp (SV-PP-SF160) -$95 8) KD9SV DXpedition Receive Antenna Switch (SV-DXSS) with Dual 80/160 Pre-Amp - $225 9) Hi-Z Antennas 50 Ohm Remote Receiver Antenna Switch (HIZ-RSW422) - 4 Female BNC Input Port Connecters and 1 Female BNC Output Port Connecter - $75. Prototype # 1 was a "Dual Band" (40 -20 Meter) Parallel Dipole Antenna, each Dipole is a "Cage Dipole" SWR was BELOW 2. HF9V lightbox HF9V in garden:: 4 20m radials. a mast, PVC or fiberglass is preferred. Receivers are much less 'picky' than transmitters and hardly care whats connected to it impedance wise. You can't buy so much added performance for so little money anywhere else! The CAROLINA WINDOM® was the first antenna to take advantage of 'VERT™' (Vertically Enhanced Radiation Technique). 44kg (my multi-band EFHW antenna weighs 1. Get a sturdy dipole antenna to help you broadcast and receive your radio signals on eBay. This is an affordable wire version of popular 43 feet vertical antenna. It can test the SWR status of your antenna, measure the impedance and reactance component and help you to solve antenna problems. The design is based on a receiving antenna shown in The Radiotron Designers Handbook of 1953. LWHF-40-DX is 40m in length, this will work on all bands from 160m - 6m via an ATU. After extensive testing, the power rating on the W8AMZ 160m Reduced Half Sloper antenna has been increased to 1 KW SSB! ( 1000 Watts into a properly tuned antenna at or near resonant frequency, lowest swr and X ≈ 0. ) Buckmaster 8-Band OCF Dipole Antennas are 270 feet (82 meters) long and work on 160 (tuner may be required), 80, 40, 20, 17, 12, 10, & 6 meters. the antenna, thereby allowing the trees to move in the wind without jerking the antenna too hard. Mounting hardware is included and the antenna has a one year warrant. ScrewDriver Antennas. [For Sale] Ham Radio station - new (unused!) 10-160m, 6m, 2m, 70cm, transceiver with extras You add your antenna and power supply and you are up and running. A magnetic loop antenna may be the answer and they are not as difficult to build as you might think. Last year on Field Day I was able to use an OCF dipole for the first time, and I enjoyed the quick bandswitching it allowed, so I thought I'd try and find a good OCF dipole for use while in the field. internal tuners - no antenna changes are necessary. ANTENNAS 4 de 45. The AH-4 is an antenna coupler/tuner designed for long wire or whip type antennas. Using a Titanex Vertical and a beverage for RX we did manage some nice runs early on, but as expected, quickly, it went quiet. Just over 300 people responded. NEW EXPORT INTERNATIONAL SHIPPING MODEL. Vertical antennas can be said to be only "half there," the other half being a "reflection" in the ground, which means they rely on the return currents through the ground, via wires radiating from the bottom of the vertical (hence the word “radials"). 750lb Breaking Strength. (when switch to 3. They are, simply put, BIG. Tuning the Butternut HF2V. 2m and 6m antennas, height approx 7 meter. Antenna capacitance is about 328 pF with my ground system and is self resonant on about 2. Here is how I managed to get pretty decent results with a homemade antenna. As far as the original antenna concept of using meandering line for a shorter 160m beverage-like antenna, it turns out to be a non-starter. The PreciseLOOP antennas are for Receive and Transmit use. After the march issue of QST and the air cannon article I built one of them to get the wire in the trees. Hassle free! Wide bandwidth and no tuner needed!!!. You don't really need an amplifier to work 6m, 10m, 15m, but way down on 160m it makes a big difference. Models include 140, 12, 12M, 120, 14, 16, 160, 160M2, 143H, and 130. Compact Multi-Band Rotatable Dipole Antenna Array Dr. pdf PDF-Dokument [822. Get the best deal for HF Ham and Amateur Radio Antennas from the largest online selection at eBay. All readings were taken with a Array Solutions AIM-1470b Antenna Analyzer. com Have you ever thought of trying 160 meters? Wintertime is the perfect time for exploring the "Top Band. 74 - Collinear Array Antenna for 40m, 30m, 20m. This antenna is unlike most compact antennas with elements running parallel to one another and in close proximity making the elements are tightly coupled, while the completed antenna uses less real estate, there is a great deal of interaction between adjacent elements. 750lb Breaking Strength. They were asked to choose their ";favourite portable antenna" from: Ground-plane W3EDP Endfed Halfwave Single Band Dipole Random Length Endfed Doublet Linked Dipole Magnetic Loop Multiband Loaded Dipole Other The order the antennas were listed in was. If you have a specific local noise source, you can point the null at the noise, and really knock down the noise. Hi z antennas, z antennas, hi-z antennas, hiz amplifiers, z antennas, 4 square antenna, hi-z antenna, radial system for shortened verticals, out of band attenuation, z, hi-z preamp schematic, what is a hi-z antenna,www. The DX Flagpole Antenna is an HOA approved, NO Radial, Stealth vertical antenna. Super-Sloper Antenna 44 69. Expect to try many different noise antennas before you find one that works for your installation. on CREDIT CARD or. If you have a suitably located tree or two and/or a flagpole or like, then go for it. The AH-4 is an antenna coupler/tuner designed for long wire or whip type antennas. The reductions need to be slow for precise tuning, thus a single speed geared motor is not the best solution. HF9V in garden. As the name says, it’s just North America, and with the 100 watt power limitation simple wire antennas should do fine if that is all you’ve got. By doubling the size and that's all I can accommodate on my lot, it turned out to be a real multiband antenna for me including the 160m band. Antenna Tuners. The MA160V features a heavy-duty high-Q copper loading coil plus a wide 100-inch diameter stainless capacitive hat for high efficiency, resiliency and 1500-Watt power handling. 160m - We use the add-on 160m coil plus a 3 ft rod with a Cap Hat. 160M BPF can be designed with a higher number for 80M isolation with Insertion Loss close to -0. 160 Meter Dipole & Sloper Antennas. If you have always wanted to operate the low bands, go for DXCC on 80m or WAS on 160m, now with Voyager, you can. This link is listed in our web site directory since Saturday Feb 4 2017, and till today "Antennas for 160m" has been followed for a total of 893 times. Both are designed as smarter, stronger, and more elegant all band options. Amateur Radio (G3TXQ) - Cobweb Antenna. Curtain Zepp Antenna for 160m, 80m, 40m. Listening antennas for Asia and Pacific Needed!. When I can find the time, there's plenty of options to choose from to improve 160m ears. Tower Pole as a Vertical Antenna for 80m 44 70. For sure, an essential condition for this statement is that both antennas are in the same environment (outside the house). com, design, parts, connection, 2N3866. Below the antenna used during the PACC 2013. 7 kHz or less (SSB, CW, FSK, PSK) *3 Except in above *2. 8-54 MHz band without any adjustment with most modern external antenna tuners. K5WZ Antennas are a product of RFLABS. Ideally, this antenna should be at least 35 feet above ground, but mine is currently about 25 feet, and still performs OK. THE GRASSWIRE - IN BRIEF. I have since found a drawing for a 40/80/160m trapped dipole. Due to my lack of tolerance regarding cables in the car I decided to put the GPS module into the TM7. Amateur Radio (G3TXQ) - G5RV Antenna. pdf PDF-Dokument [822. While dipoles are very efficient antennas, they are not the only way to go. Only 2 left in stock - order soon. 160-6 meters end-fed antenna The ULTIMAX DXTREME end-fed antenna covers from 1. It has an elaborate 5-petal capacity hat at the top designed to deliver maximum capacitance in a small area. 5 m between 20 m trap and 40 m trap and 11 m between the 40 m trap and the end of the antenna. 160 Meter Off Center Fed Dipole sometimes known as a Windom, if DX is your goal then RADIO WAVZ brings you new technology at an affordable price. What type of feedline coax should I use for my antenna. 160m Loop Antenna for TX. 5 x 25 x 12. How good is a G5RV and how do they work? Ham Radio Antennas. frequency and antenna, these tuner settings are instantly restored and you're ready to operate in milliseconds! MFJ new VirtualAntenna Memory system gives you 4 antenna memory banks for each of 2 antenna connectors. Much easer than a dedicated tuner and other screwdriver type antenna, since you don't have to watch the SWR meter as the antenna is tuning. the antenna, minimizing 12R trap losses. He spent 21 years with Goodyear Aerospace Corp, 6 years with Tulane University and Il years. Humidity will also play a role in affecting your antenna by using an air capacitor. For those who detest the need to “alter” purchased antennas, no tuning or matching is required to put the Voyager on the air. – 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 • Use enough radials so that fields and current are in copper, not earth • A few resonant radials work if elevated. Use Unadilla’s W2VS high performance traps to convert your single dipole into a tuned, multiband wire antenna. K5WZ Antennas are a product of RFLABS. Most antennas are resonant devices, which operate efficiently over a relatively narrow frequency band. Handles full legal limit power. This means that if the base wire of the antenna goes from north to south, the direction of gain will be east and west. Modeling this 160 meter inverted-L in EZNEC shows surprisingly useful patterns and gain on most HF bands above 160. In San Diego we have an active 160 Meter group, 1. The antenna This 10 - 160 meter tuned horizontal loop antenna is fed with 450 ohm ladder line all the way into the ham shack to an Palstar AT1500BAL balanced line antenna tuner. Dual-Banding your 40m vertical for 15m. They are, simply put, BIG. LWHF-40-DX is 40m in length, this will work on all bands from 160m - 6m via an ATU. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. MFJ-2982 Feather Lite HF Vertical Wire Antennas are 31 ft. These antennas give excellent results where space is at a premium. 71 - Tower Pole as a Vertical Antenna for 80m. Welcome to the Magnetic Loop Antennas page. I used this to examine and compare the SWR plots of 1/2, 1 and 2 wavelength resonators. coax loop) less efficient but comparable to other portable antenna solutions (e. Some call it a Skywire Loop Antenna, some call it a W0MHS Loop Skywire Antenna, nowadays it's called a Full Wave Loop Antenna but it still is a force to be reckoned with. They are made with the best materials and top of the line workmanship. The group of friends that I talk with on 80 meters was plagued by these "winter doldrum" conditions so a few of us put up 160 meter antennas to see if the situation could be improved. Introduction. E-mail: [email protected]
Super-M Classic Base Base Antenna 25-1300 MHz: Super-M Ultra Base Base Antenna 25-6000 MHz: Solarcon: A99 Vertical 10-17 Meters DISCONTINUED: Surmen: SX- 3 Vertical 2M/440 : SX- 5 Vertical 2M/440 : SX-20 Vertical 2M/440 : Coax-Seal: Coax-Seal : Please also see: Amateur Wire Antennas: Amateur Mobile Antennas: HT/Portable Antennas: Antenna. Getting a Big DX Signal on 160-10 m from One Small, Low Antenna Chuck Counselman, W1HIS I live on a small lot in a dense, inner suburb of Boston and Cambridge. Below the antenna used during the PACC 2013. W6CAW "Fixed" Mobile 160 Meter Whip. With the view to establish a quick and easy multi-band antenna deployment for portable and camping operations a simple long wire antenna with an earth or earth plus counterpoise arrangement with a 9:1 voltage unun including a tuner or simply with a tuner is one possible solution. JK Antennas can meet your needs with a wide range of Ham Radio, Amateur Radio HF Antennas, including Monoband, Dualband, Tribander, Multiband, operating on frequencies from 6M to 80M. For more information, see the Frequently Asked Questions (FAQ) Page. 7 / f (MHz) metres. 00 On sale: $123. This Horse Fence antenna is the Best money I ever spent in Ham Radio gear in over 40 years as a Ham! If you want the very best antenna money can buy in this type of antenna, this is the one for you!. Counterpoise wire(s) close. 160 Meter Dipole & Sloper Antennas. antenna measures only 204 feet across the top for 160 meter - 6 meter operation, and is fed at the center through a low loss 450 ohm twinlead feed-stub. You Don't Need a BIG Antenna Any More! Customer Rated 4. Eliminate send/receive tuner loss. Use this online calculator to determine the length of a full-wave loop antenna from the frequency. A future article on simulations of this antenna will explore this. What is a magnetic loop? • Radio waves travel by a wave of electric and magnetic fields at 90 degrees to each other. And if this antenna is only for listening, no transmitting, don't worry about 'tuning' it. Despite all the words and diagrams in handbooks over the years, newcomers still send me questions about the antenna. The group of friends that I talk with on 80 meters was plagued by these "winter doldrum" conditions so a few of us put up 160 meter antennas to see if the situation could be improved. M0CVO Antennas, amateur radio antennas for fixed station or portable operations, HF/6m all are catered for. You can hear his excellent AM signal regularly on the 160m AM Coffee. Due to the fact that one wire leg of the antenna is shorter than the other, the OCF is more convenient to erect than a regular center fed dipole. You can find information here from vertical antennas to loops and from Moxons/Yagis to Quads. his book HF Antennas for All Locations (published by the RSGB), Les Moxon, G6XN, suggests that when no insulators are used a half-wavelength can be found by using either 478 / f (MHz) feet or 145. Sales, Supplies, and Service. This version is for the 160m Ham Band and has an approximate operating frequency of 1.