160 Meter Random Wire Antenna

Find Planet In Stock Now. ML&S Martin Lynch & Sons, Staines, Surrey, UK. Also, we have a new issue in the antenna garden. Ham Radio/SW quick super compact antenna - The Good old Broomstick Helical. Sure, you can just use a random length of wire, but these are much easier to deal with and the included adapter is nice (The Radio Shack version didn't have the plug, only the clip to snap over an antenna). Five sections of aluminum Antenna wire is #14. I should have used at least 14 AWG. The problem occurs when the wire ends up being a half wave multiple on one of the bands you would like to operate on. Despite all the words and diagrams in handbooks over the years, newcomers still send me questions about the antenna. The best way to operate 160 with. The antenna wire will be thin stranded copper 260 feet long. Use open wire or ladder line to feed the loop, employ a wide-range antenna tuner, and it becomes a wonderful multi-band antenna. I also enjoy the fact that uning the 40 meter wire to the desired frequency range a good thing too. I first tried attaching a 60 foot random wire to the antenna stud, but could not get any reading on the "Antenna Voltage" meter. only weighs 6 oz. STAINLESS/ 80-6 METERS 150W PEP END FED "RANDOM. The impedance of a long wire antenna varies as the frequency is changed, but the normally accepted values are from a few hundred to a few thousand ohms depending on length, height, ground conditions and. A single loop that will cover the 160 and 80 meter ham bands requires one 25-foot high support and 85 feet of wire. Trimming the wire to 18 1⁄2 feet improved performance on 20 and up even more. It can handle up to 300W. 5 to 30Mhz: 80/40/20/15/10m. You can also L shape it or zig zag it or slope it if you are limited on room. It needs a ground plane with very good conductivity. To cut the antenna wire length to resonance we use the formula: Length (in feet) = 1005 divided by frequency (in MHz). The Villages Amateur Radio Club 2015 Antenna Guide for The Villages February 19, 2015. How to make a loop antenna for 40m and 80m bands I've been an addict of full wave (and partial wave) loops since realising many years ago that in comparison to a dipole, you get more bang for your buck if you build a loop - certainly you get more copper in the air - and loops are resonant on EVERY harmonic so a 40m loop will be resonant. Viewer Request - My home HF antenna solution, 160-10 on a small. Cebik, W4RNL. 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 will also load on the other 5 ham bands, but since I have other antennas for those bands, I seldom use it there. 42, "The Loop Transmitting Antenna" (Technical Correspondence) - W5QJR. 285 with less than 1. The 43 foot vertical antenna is a popular height being promoted by several antenna manufacturers for 160 to 10 meters. A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas. I’m currently using a ¼ wave slopper fed against my 48 ft tower. There for if you can have only one HF antenna the random length all band dipole would be a pretty good choice. 2011, the Emergency Amateur Radio Club of Hawaii (EARCHI) marketed a matchbox-kit for a 6-40 mtr multi-band end-fed antenna. The graph in Figure 7 has been produced with data generated from 4NEC2 antenna modelling software for an antenna wire of 18. Next In popularity would likely be the commercially available sloper antennas and trap dipole. However, there are other schemes for quite effective 160 meter antennas. Painted coax, thin, non reflective wire, strung close to the. The entire antenna is ½ wavelength long at the desired operating frequency. With my 6 meter random wire and two radials of about the same length, I can tune from 40 to 10 meters without any issue and 100W SSB are easily handled. The MFJ-16010 is a variable L-network random wire antenna tuner designed to match the low output impedance of your transmitter to the high impedance of a random wire (or vice versa). Have you any further information about how layout a 160 meter two turn antenna which will be \"out doors\" and externally elevated?. It needs no tuner on 40m, 20m and 10m. I could only jump in for a few minutes. "random wire" and the KX3 ATU. The wire is about 110 feet long. Short Antennas for 160 Meter Radio [ARRL Inc. That means that the matching characteristics of, say a 40m EFHW will be very similar to those of a 20m EFHW. Amateur Wire Antennas : Hy Power Off Center Fed. The 1/2l dipole radiator (driven element) is 10 m long or so. 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. transformer. West, Toronto Ontario M3N1V7 Tel: 416-667-1000 [email protected] I run a Buxcomm 80 to 6 meter off center fed windom in an inverted V set upworks better than I expected it to80 40 20 meters that antenna is really nice. for the 160 Meter Band. The problem occurs when the wire ends up being a half wave multiple on one of the bands you would like to operate on. The most important is the physical size of the antenna used, then its radiation pattern. Supplied Accessories: Hand Microphone (MH-31A8J) DC Power Cord Spare Fuse (25A) Operating Manual Warranty Card. There's a hidden factor at work here too. Always keep the non-resonant. Results are excellant. 6-160 Meter J-Pole Jr 34 foot End Fed antenna A combination of antenna designs, namely the J‐Pole and Zepp along with Alpha Antenna's matching network technologies, are utilized to achieve a fairly Ham Radio Antenna Portable Battery Wire Headphones Cable Tape Measure Body Parts Ham Radio Cabo. Any balanced feedline (open wire, twinlead, or twin-axial lines) is connected to the. 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. So having radials is not such a great idea. Many people use what is referred to as a "random length" wire antenna for HF, quite effectively. STAINLESS/ 80-6 METERS 150W PEP. 1MHz with no tuner connected. As typically installed, it is a compromise antenna but great for portable use because it is easy to pack and easy to install. The antenna wire will be thin stranded copper 260 feet long. The MFJ-16010 is a variable L-network random wire antenna tuner designed to match the low output impedance of your transmitter to the high impedance of a random wire (or vice versa). The MFJ-16010 is a variable L-network random wire antenna tuner designed to match the low output impedance of your transmitter to the high impedance of a random wire (or vice versa. Results are excellant. The shape can be a circle, square, rectangle or a triangle. 2:1 or less. Most of our units are derived from the researched and tested designs of Dr. 130 - Earth-Mover Inverted-V Antenna for 40m. 160m Top Band End Fed Antenna -G3YEU Coil Details:- 5" (127mm) diameter using 16 SWG bare copper wire. use on long, random or ladder line fed antennas. It will match almost any random length of wire to any transmitter from 160 through 10 meters. ) but it is worth it. One end comes with a #10. As a matter of interest, we use the Windom BUXCOMM model 802134 up to 2 meters (146 MHz). It can however also be used as a balun by. for the 160 Meter Band. The impedance of a long wire antenna varies as the frequency is changed, but the normally accepted values are from a few hundred to a few thousand ohms depending on length, height, ground conditions and. 800 (lowest 160 meter frequency in MHz) = 558 feet. 8 MHz, this would be ~1,093 feet. 20 meters swr 1. 53 59 72 88. 153 - Slim Jim Wire Antenna for 4m. Personally, I use a slightly different antenna system for shortwave listening, where the antenna is placed much further away from the house. As for the theory of operation, it remains a mystery. The following graph shows the performance of various antennas relative to a reference antenna consisting of a 10m vertical connected to an auto-tuner at the base of the antenna and fed against 10 random length buried radials. 8MHz to 30MHz frequency range For better performance on the 160 meter band, a dimension drawing for a larger version is presented below. 0 MHz) and 40 meters (7. At that time, the remote tuners were limited to about 200 watts maximum RF. All you need to do is enter the desired resonant (center) frequency in the form below, then click "Calculate". If you have a suitably located tree or two and/or a flagpole or like, then go for it. It will match almost any random length of wire to any transmitter from 160 thru 10 meters. A single turn of insulated wire (wire size is not critical) is placed inside the hula hoop and this is resonated with C1 , a 365 pF broadcast variable capacitor for operation on 80 and 75 meters. Antenna 3 el yagi for 20 meters and G5RV @ 25 feet for 40 and 75 meters. Trying to load an 80 meter (or higher frequency) antenna on 160 meters can be a disaster for both your signal and the tuner. 000 kHz for now. 5 turn per 25mm) Number of turns depends on the length of the antenna. During 28 days of operation we made a total of 36,148 QSO-s, of which 3,425 were on 160 meters. Match dipoles, verticals, inverted vees, random wires, beams, mobile whips, SWL receiving antennas -- nearly any antenna. Specifically, I was hoping that my homebrew antenna tuner would improve my signal to noise ratio on the aforementioned bands. It is a homebrew skyloop HF ham radio 2. Results are excellant. Common Mode Noise Filter) at the receiver end of the coax. The shape can be a circle, square, rectangle or a triangle. To cut the antenna wire length to resonance we use the formula: Length (in feet) = 1005 divided by frequency (in MHz). Wound at 3. The result is that listening to signals on a small vertical loop can yield a better signal-to-noise ratio for the signals we care about (CW, SSB, RTTY, PSK, etc. Even a modest length wire will give your receiver greatly improved reception with less static because the signal pickup is occurring some distance from the interference generating appliances in the house. Windom Antenna 6 7. If you use a wire antenna and you do have a relatively poor RF counterpoise or ground system, you might look into at "artificial ground". ANTENNA TUNER, 200 WATTS, RANDOM WIRE. Lets get started! The G7FEK 10-80m Garden Antenna. ter than most hams have on 160 meters. if your antenna and radio are for receive only, you could benefit from an antenna pre-selector. To cut the antenna wire length to resonance we use the formula: Length (in feet) = 1005 divided by frequency (in MHz). note: when using balanced feed antenna systems. WHAT IT IS: An antenna that will operate well on all Ham bands with minimal assist from the tuners included in many modern transceivers. Designed to fed 3 coax cables, random single wire or balanced line with a external balun, not included. Here’s an easily transportable vertical antenna for 20 meters collapsible to 4 feet that costs about $2. It incorporated a pair of 807's in the final putting out 100 watts. I would like it to handle up to 75 watts (currently I use a Yaesu FT-817 at 5 watts). DC Power Using a BK Precision 1786 lab power supply, on receive the PRC-104 draws 0. The 43 foot vertical antenna is a popular height being promoted by several antenna manufacturers for 160 to 10 meters. I've seen a lot of traffic on the "random wire" topic. (I have lots of it on hand!) I didn't bother to calculate the impedance of the line, since the loss is so low anyway. The Marconi antenna is a vertical wire with a length of 1/4 of the working wavelength, feeded through its lower end. Longwire antennas are typically designed so the lobes of that gain fall in desired directions. Dipole Antenna - Balun 9 13. I was thinking of trying a random wire antenna fed with a 9:1 unun. An L-network random wire tuner is probably the simplest matching network in existence, yet it does a good job as long as the antenna is at least a quarter wavelength at the lowest operating frequency. including 160 meters ,but on 10 m. The No-Tuner, All-HF-Band, Horizontal, Center-Fed Antenna is our old friend, the 80 meter halfwave dipole dressed up a bit. 99 in their 2000 Catalog. Personally, I use a slightly different antenna system for shortwave listening, where the antenna is placed much further away from the house. Length of wire in most cases that I have done this is about 60 to 70 feet and try to get it up high, even near vertical works. The performance of this tuner was nothing short of spectacular on FM; the AM side was even more impressive, as it was designed to have an audio bandwidth of 20 Hz - 15 KHz -- the same as broadcast FM!. HF Antennas Especially stealth models for those in an HOA •20 meters and above or 80 meters and •Wire antennas can be run near the peak of. The MFJ-931 Artificial RF Ground covers 1. antenna, energy propagates along the wire in a single direction, without reflection back toward the source. The radiator wire is custom made for us in 21 mile runs. Long wire antennas are typically horizontal antennas, fed at one end, and well over 1/2-wavelength long at the lowest operating frequency. End-feeding a half wavelength of wire has certain mechanical advantages over center-feeding the same length of wire. As for the theory of operation, it remains a mystery. How to build a mono band 80 meter 1/2 wave wire antenna. Zeppelin Antenna 8 11. Established in 2005, Balun Designs builds exceptional quality baluns and ununs for Amateur Radio, military and commercial applications. On 40 m the SWR was very close to 1:1. ; power divides between R rad and R loss. The following tables show the recommended lengths to use for antenna wire based on the bands you wish to cover. On 160 meters you should see about 110 kHz bandwidth. Also contributing to its falling popularity was the growing fad for low-impedance antenna feeds. This was created as a fun project to demonstrate how to enjoy operating HF in the field with a home-made portable antenna without spending a ton of money. The Wire Size can range from 16 AWG to 12 AWG. It worked very well at everything from 80 metres to 6m and I used it for some time on all bands between. It weighs just 20 lbs. It's going to be a "stealth" design as I have restrictions. Swallow-Tail Antenna. It is possible to put up a quarter wave wire antenna for the 160m Ham band in a suburban backyard. All else being equal, the coil losses will more than double, and therefore the input impedance will be close to 50 ohms (no matching needed). Random-length loop antenna for 160-40? The plan would be to use it mostly for NVIS work on 160 through 40 meters, open wire line works great. of #16 "silky" stranded wire cut to one wavelength long on. Established in 2005, Balun Designs builds exceptional quality baluns and ununs for Amateur Radio, military and commercial applications. This is Hi-Power QRO 9:1 Balun / Unun. Can't wait to try the random wire on the next Sprint. Wire Antennas for the Beginner Every ham knows how to make and install wire antennas. Wire Antennas. 160 Meter Inverted L antenna. On 160, the antenna performs like a Marconi. 1 over entire band 40 meters swr 1. Inverted “L” / Sloping Wire Configurations. This antenna is a full size 40 meter half-wave with a tuning stub in the center to adjust the resonance of the antenna as a 20 meter full-wave. Here in NC the mountains provide an even greater issue, so far on HF in the last year here I have installed a full size 2Mhz loop which is my main HF antenna, I also have 125 foot and 500 foot random wire antenna and a 160M COBRA in place. In this instance, we have connected a balanced antenna to an unbalanced feedline. To Remote Automatic Antenna Tuners and the 43 Foot Vertical Figure 1 — Test setup used by the author for measuring expected tuner loss with a load that simulates the impedance of a 43 foot vertical antenna on 160 meters. 5 turn per 25mm) Number of turns depends on the length of the antenna. I built my first homebrew 160 meter transmitter in 1959 with parts from a discarded TV set. EWE Antenna 9 12. Get 160-6 Meters Coverage and 1500 Watt Operation with a single antenna! This MFJ-2990 is a 43-foot self-supporting vertical antenna that covers 160 through 6 Meters with the use of an antenna tuner. The antenna is actually pulled snug up to each tree. Sorry I missed you WB1GYZ N3HEE - Lots of fun working many fine QRP signals on 160 meters !. 285 with less than 1. Any balanced feedline (open wire, twinlead, or twin-axial lines) is connected to the. The 160 meter band can be nearly useless on summer nights due to thunderstorms. As an example, a 28-31 foot wire will typically allow 40 thru 10 meter coverage and a 43-50 foot wire will provide access to 80 thru 10 meters. The FC-40 is a microprocessor-controlled antenna impedance matching network designed to provide all-amateur-band transmitting capability with the FT-897/857 Series of transceivers, when used with an end-fed random wire or long whip. example, a 28-31 foot wire will typically allow 40 thru 10 meter coverage and a 43-50 foot wire will provide access to 80 thru 10 meters. This antenna kit has the same specifications as the popular Radio Shack Antenna kits except ours are much better as they use #14 AWG - 7 strand pure hard drawn copper wire!. We must subtract 4% of the total full wave length if we are using insulated wire. 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. Adding the 160 meter antenna proved to be a bit more difficult. Usually any wire length that is non resonant on the band or bands desired will work with the 4:1 ratio. Double Extended Zepp NVIS Antenna Calculator. Verticals and Inverted-Ls for the Low Bands – Horizontal Antennas for High Bands a horizontal antenna up around 3/8 at about 16. Random Length Radiator Wire Antenna. Antenna for 160 meters band. Technically a true "longwire" needs to be at least one wavelength long, but Hams commonly call any end-fed wire a longwire or random wire antenna. Those who have used the antenna on 160 say the "GI Mystery" antenna is a quieter receiving aerial compared to other 160-meter antennas. This was another simple low-band DXpedition by George (AA7JV) and Tomi (HA7RY). Trimming the wire to 18 1⁄2 feet improved performance on 20 and up even more. My most recent antenna for top band was an odd shaped 160 meter full wave length loop. The 1/2l dipole radiator (driven element) is 10 m long or so. AMP SUPPLY CO. This allows me to adjust the antenna's length easily in the field if necessary. On 160, the antenna performs like a Marconi. People universally hate bats, and love farmers) If you can't possibly scheme to get your wire more than a dozen feet off the ground, try flinging a few hundred feet of the magnet wire all around the yard in a big loop (find out measurements in the ARRL Handbook or Google "80 meter loop antenna"). My property is heavily wooded, so finding a clearing in the direction I wanted was tough. The antenna has a full 300kHz bandwidth on 80m between 3:1 SWR points. really a random-length dipole on all but 20 mfrs. I have a pretty large backyard, but no trees. random wire antenna tuner. Hello everyone. The Joystick antenna was used many years ago as an all band vertical HF antenna under restricted space situations that would cover from 80 meters thru 10 meters with a tuner and was a great commercial success! Some hams even had success with it on 160 meters. ANTENNA COUPLER The FC-107 antenna coupler is designed for low and medium power applications in the HF amateur bands from 160 through 10 meters. It is a bit short--by about 100 feet--for being a full wavelength on 160 meters. The shape can be a circle, square, rectangle or a triangle. These antennas can be set up as a straight suspended wire or erected in inverted V format. The No-Tuner, All-HF-Band, Horizontal, Center-Fed Antenna is our old friend, the 80 meter halfwave dipole dressed up a bit. In this instance, we have connected a balanced antenna to an unbalanced feedline. Wound at 3. if experiencing difficulty when tuning a random wire for 160 meters, place the jumper across the terminals as above. Why the W3EDP is so popular? And all the random wire antennas matched by a 1:9 UnUn? Ron AC7AC, gives an answer at elecrafts’s forum replying a ham’s question on length discussion concerning the W3EDP. Larget and Best Sales, Equipment, Service and Supplier of Amateur Radio, Ham Radio, and Communication Equipment in New York | RW Antenna Store. 99 in their 2000 Catalog. (I have lots of it on hand!) I didn't bother to calculate the impedance of the line, since the loss is so low anyway. There are two popular ways of producing a multiband EFHW antenna. would it be better to connect the single wire to the antenna tuner's random wire connection, or to the coax connection, or does it matter? bob k5qwg How much current will actually flow in the center conductor of the shorted coaxial feedline? The single wire connection makes much more sense. above the antenna wire and is used to provide support for the antenna wire and feedline. Kevin Loughin (KB9RLW) shows us how to use locally available materials to design, build, and use this useful tool for antenna designers. I use it on 40m as well. The antenna is 31 feet above the ground, which is a full wave length on 10 meters. HF Antennas Especially stealth models for those in an HOA •20 meters and above or 80 meters and •Wire antennas can be run near the peak of. This is Hi-Power QRO 9:1 Balun / Unun. Buy an Icom AH-4 end fed tuner (auto coupler), attach your wire antenna wire to the hot end and run a short wire from ground side to a ground rod or counterpoise wire and enjoy. Now remove the resistor from tuner and connect the antenna. This one is basically a random wire antenna using 400 feet of 12 gauge stranded, insulated wire in a U configuration with 9:1 RF transformer outside where one end is grounded and RG-214 cable into the house which supports requires not antenna tuner from 3-30Mhz. The "Best" Random Wire Antenna Lengths Randon wire lengths you should and should not use! The random wire antenna is probably one of the least expensive, easiest and cheapest HF antennas to use if you have a tuner and you want to get the "most" out of a length of "random" wire without having to pull out that calculator, doing. They are affected by height above the ground and surrounding objects. over the past three years I have found the loops to outperform on every band which also includes the harmonics on 20, 18, 15, and 10 meters. However, that's not going to happen anytime soon. Results are excellant. if experiencing difficulty when tuning a random wire for 160 meters, place the jumper across the terminals as above. Random wire or single wire line antennas should be connected to the center of the COAX 1 or COAX2 SO-239 connectors. The MFJ-969 Antenna Tuner covers all frequencies from 160 Meters thru 6 Meters, including the "magic band" -- the widest matching range of any full featured antenna tuner. 152 - Multiband Dipole Antenna for 80m, 40m,15m, 10m. I decided to build a 80 meter, half wave wire antenna that takes full advantage of the phone portion of the band known as 75 meters, also this antenna will not need a tuner. I generally use WIREMAN CQ-532 wire for my wire antennas. Here's a simple, easy to build, and low cost L network antenna "tuner" that will maximize the performance of a random wire antenna. 160 Meter Inverted L antenna. The privacy fence also acts as an anchor for one of the legs of the Stealthy Delta. You can, of course, buy an antenna, but what if your current antenna was destroyed by a storm and all you had is your coaxial cable and some wire? In a future post, I will discuss how to build a simple antenna out of wire, which is quite similar to the one we’re building. Wire Antennas. Center Frequency: 1. 8MHz, thiswould be ~273 feet at minimum. Resources listed under antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. Typically a 40-meter DEZepp behaves like a dipole on 75/80 meters and like a long wire on the higher frequency. could have operated the antenna on 160 meters as well. It's going to be a "stealth" design as I have restrictions. If you only have one support an end-fed antenna may suit you better. It is a #18 gauge stranded copperweld with a tough polyethylene jacket. And I’m going to keep this VERY simple. The only (wire) antennas left are probably (trapped) dipoles and loop antennas. A small yard is definately a problem. Quarter Wavelength Vertical Antenna 7 9. The No-Tuner, All-HF-Band, Horizontal, Center-Fed Antenna is our old friend, the 80 meter halfwave dipole dressed up a bit. If you have a well balanced antenna/feed line system, you're probably okay. I have been a ham radio operator ever since my 17th birthday, and used to spend spare time in my youth working the worlds first world wide communications system. I'm always fascinated by the "magic" 9/1 un-un for longwire antennas, also called "Magnetic Longwire Balun". 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. The very predictable pattern of a resonant dipole applies only to the lowest, or design frequency, of the OCFD and the patterns for all bands above will be distorted. 6-160 Meter J-Pole Jr 34 foot End Fed antenna A combination of antenna designs, namely the J‐Pole and Zepp along with Alpha Antenna's matching network technologies, are utilized to achieve a fairly Ham Radio Antenna Portable Battery Wire Headphones Cable Tape Measure Body Parts Ham Radio Cabo. Antenna for 160 meters. The first wire I put up was probably about 60 or 62 feet long and my plan was to trim it incrementally in order to optimize SWR. Never found an explanation on … Weiterlesen → How the W3EDP does the Job. You can also L shape it or zig zag it or slope it if you are limited on room. If the wire is approximately 67 or 137 feet long. 7mtr total length installed at an angle of 30 degrees over a selection of ground types. Browse Mfj available for buying here on the internet!. Homebrew 9:1 Unun for random length wire antennas. Viewer Request - My home HF antenna solution, 160-10 on a small. I was told that the radio does not need any audio modifications, and sounds good in stock condition. The 72+ best 'Balun Transformer' images and discussions of November 2019. The performance of this tuner was nothing short of spectacular on FM; the AM side was even more impressive, as it was designed to have an audio bandwidth of 20 Hz - 15 KHz -- the same as broadcast FM!. For best results, triangular loops should be supported apex-down. A height of about 1 inch (2. " This is essentially a dipole cut for the lowest frequency of interest and fed with 450 ohm ladder line. The Yagi antennas used by HCJB were self destructing regularly, due to the corona discharge off the ends of their elements. I also enjoy the fact that uning the 40 meter wire to the desired frequency range a good thing too. "Running it with an earth wire to a stake and a counterpoise my field strength meter shows that it isn’t too bad though. Random wire lengths for antennas. An L-network random wire tuner is probably the simplest matching network in existence, yet it does a good job as long as the antenna is at least a quarter wavelength at the lowest operating frequency. PRO API tools faq deals. You can mount the wire at any height, but consider eight feet for safety. Putting wire back is not nearly as easy as taking some wire off! Antenna analysers can also be used and these can give a better indication of the operation of an antenna. The 40m CW antenna seen from the north side of the tower. This line can. Wire Antenna Calculator. Windom Antenna - Feed with coax cable 7 8. I decided to build a 80 meter, half wave wire antenna that takes full advantage of the phone portion of the band known as 75 meters, also this antenna will not need a tuner. " See all. First off you have to know that I didn't invent this. According to the Official gazette notice, these changes come into force 8 days following its publication, so we should expect more Croatian stations after 02. It seems clear from this very basic, but perfectly reasonable, EZNEC simulation a full wave 160 meter loop running in the 80 meter band is a good antenna for DX work, but leaves much to be desired for NVIS even if you lower it towards the ground like you do with a dipole. Four variation of a random wire antenna with a length of 18. The only (wire) antennas left are probably (trapped) dipoles and loop antennas. Maybe it does but you'd never know it from my score. end fed "random wire" hf dipole 9:1 antenna. Long wire antennas are typically horizontal antennas, fed at one end, and well over 1/2-wavelength long at the lowest operating frequency. Resources listed under antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. Short Antennas for 160 Meter Radio [ARRL Inc. Lead For Sale. You can spend about $25 to turn the Jackite 31′ pole into an all-band HF Antenna that will give you all bands between 80 and 10 meters, without a tuner. Larget and Best Sales, Equipment, Service and Supplier of Amateur Radio, Ham Radio, and Communication Equipment in New York | RW Antenna Store. After having marginal results on 17 meters using my Alpha-Delta DX-EE with a tuner, I put up a resonant dipole. If one were to forgo 160 meter (1. Most of the general action is somewhere between the 20 meter band and the 40 meter band regarding shortwave and ham band listening. My property is heavily wooded, so finding a clearing in the direction I wanted was tough. Lets get started! The G7FEK 10-80m Garden Antenna. A Multi-Band Resonant NVIS Plug and Play Dipole for 20,20 digital, 40, 40 digital, 60 80 and 80 digital meters. My property lot does not allow for putting up a dipole for 160, so any antenna I try is going to be a compromise. 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. The Antenna Farm : High Frequency 160-10 Meters - VHF & UHF Mobile Radios Radio Accessories VHF & UHF Hand Held Radios Antennas Mobile Antenna Mounts SWR/Power Meters Adapters Coaxial Cable Two Way Accessories Antenna Accessories DC Power Supplies Coax Cable Accessories Amplifiers Connectors Aviation Radios Repeater Systems Towers & Accessories Scanners & Receivers Duplexers Diplexers. * * * A Bad Rap?. I've seen a lot of traffic on the "random wire" topic. But this is an outstanding antenna from what I've seen. You’ll need a horizontally-polarized 2-meter antenna, preferably with some gain. This option does rather depend on the availability of suitably high supports to hang the wire from. Wire antennas sway in the wind, and we get a lot of wind out here. Amateur Radio has been a supreme way of communications for many ways of getting messages from one place to another for decades!. Do you instead mean an end-fed wire antenna, and are asking for. Anywhere it is not resonant it will produce significant SWR’s above 3:1. 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. Building an amateur radio antenna for 160 meters is a challenge. To do this, strap your feedline connections together and run as a single wire to the end-fed wire post on your tuner. I just wished that an addition of a 160 meter element with some way of widening the 80 meter bands was possible as well as adding a 6 meter element. It needs a ground plane with very good conductivity. It utilizes a 9:1 UNUN transformer in order to bring the impedance of the antenna to more manageable values for your antenna tuner. There are mods for 160m and it might even work on 6m with some tuning. 7mtr total length installed at an angle of 30 degrees over a selection of ground types. Here begins my saga of getting on the "Top Band", 160 meters. Random Length Radiator Wire Antenna. A good, meaning large in size, antenna tuner capable of doing a random-wire antenna is probably the 'best' bet. Recently I was able to get my hands on a 1980's era 180 meter to 10 meter ham radio transceiver. Personally, I use a slightly different antenna system for shortwave listening, where the antenna is placed much further away from the house. Results are excellant. Swallow-Tail Antenna. Tel: 0345 2300 599.