160 meter doublet. Operating on 160 meters has always been a challenge.

160 meter doublet If you want to have reliable comms, 24 hours a day, plan on floating between 160-80-60-40-30 meters. Part Type: Wire Antennas. Part 2 An overview of the complete setup : doublet, 10m above ground-level, in use for 160 – 10m (right) The same doublet during harsh winter conditions – February 26th 2018. Delta Loop Antenna. THE ALL BAND HF DOUBLET It can be designed for use from 160 thru 10 meters very easily using the standard 1/2 wave dipole formula: 468/freqmhz = total length (ft) end to end The exact length is not critical! If you don't have room for the 160 or 80 meter versionthen design it for 40 meters and up! Just remember, doublet or G5RV. An Introduction to Doublet Design Validation. It falls within the medium frequency (MF) range and is commonly referred to as the 1. 6) An article of clothing. Hence, a 1-λ doublet has two lobes, while a 2-λ doublet has 4. The close The half sized version, 73 foot (40 meter) also covers I have a 135' 80m dipole (well, a doublet really) fed with 450 ohm ladder line. 00 Quick View 80/75 meter Cage dipole Ni4L. OnAllBands blogger Dino Papas, who had never had a QSO on 160 meters over five decades of operating, wrote an 160 meter loading coil (1/2) > >> aa5wg: Hi to all: I would like to replace 1/4 wavelength of transmission line with two loading coils. 98. Effectively, almost any horizontal antenna configuration for 160 meters is going to be a high angle radiator. Main Menu. The dipole-doublet(s) 3. Special purpose Aerials: Ultra-Lightweight antennas for expeditions and stealth applications. I have used this tuner with a 160 meter doublet fed with 600 ohm ladder line on 160, 75 and 40 meters. What is a doublet antenna? The doublet antenna is a form of dipole that uses a balanced feeder, often open wire feeder and an antenna tuning unit. 99 (6 Wire Vertical "T" Single Wire Feed Only) LOOK WHAT KEN FROM JAPAN HAS TO SAY ABOUT MY N4LQ 160-10 Multiband Doublet with Auto-Tuner. On 160 meters, an 80 or 40 meter antenna fed the normal way will be extremely reactive with only a few ohms of feedpoint resistance. Due to the short length, this will probably continue as my only 160 meter antenna at this QTH. I am using a Palstar AT2K Manual Antenna Tuner. That meant most of my signal was going up, not out. Flying the flag and supporting my Operating on 160 meters has always been a challenge. Look at the pictures to see how 2 of the radials (one-160 and one-80) are run along the property fence line. Joined Mar 31, 2007 Messages 1,845 Location Jackson Square, East Weymouth, MA. I had to take into account 1. Although there are slight differences in the two patterns, performance of the two antennas is close enough that the user would detect no operational differences. Reply reply     Dipole/OCF/ZS6 Antenna Wire Kits (160-6 meters) SKU DWK-6. My homemade amateur radio antenna for the 160 meter band is the result of many considerations, inner debates and tests. 5mhz (UK bottom part of 80m). Stretch out your wires and join the fun. Was labeled a doublet and had those exact dimensions. It hangs in the trees here on the mountain. 160-Meter Dipole Height N0GW – Gary Wescom – 1 Nov 2006 During the current lull in solar activity, operation on the 160-meter ham band has become more popular. Overview. Automatic tuner should function properly with antenna. Ladder Line Dipole/ZS6BKW/G5RV Center Insulator. 102 feet long, shorter than 80 Meter dipole. Length, DPK-160-38 , Each. That has been my experience with both a 160 and an 80. Although this is not a DX antenna, there is plenty of useful radiation for all kinds of excellent 80-meter QSOs. Trying to load an 80 meter (or higher frequency) antenna on 160 meters can be a disaster for both your signal and the tuner. The best way to operate 160 160 Thru 6 Meter All Band Doublet Antenna With 100' of 450 ohm ladder line. all-band doublet covers 160-6 Meters with a balanced line tuner. . 160m Linear SWR very close to 1:1. My first install attempt was into a 100′ white oak tree that I have on the property so I ordered Wire antennas are probably the first choice for portable use on the shortwave amateur radio bands. 160 Meter band dipole antenna including 150 Watt 1:1 BalUn, DIY kit. Space Saving Ant. $14. Capacitive Loaded Vertical Doublet My linear-loaded vertical doublet has been doing an excellent job the past two years, My only HF antenna is a 160-Meter doublet up at 80 feet above ground. It #hamradio #hf #antennaIn this short video, I show the Ladder-Loc feed-point for my ZS6BKW and my 160m Doublet antenna systems. (8) The classic center-fed 80 (or 160) meter doublet, with ladder line and a tuner, will work all HF bands, though some trimming of the line may be needed to get it within the tuner’s range on one or more upper bands. " Antenna Length Chart in Feet and Meters Ham Band: Frequency (Mhz) 1/4 λ (Feet) 1/2 λ Dipole (Feet): 1 λ Loop (Feet) 1/4 λ (Meters) 1/2 λ Dipole (Meters) Screen shot, non functioning! Shows a 2 Meter ground plane designed for 146Mhz. long MFJ 1779A 160M Dipole Antennas are 265 ft. 160M Provides a perfect match on 80 and 160 by using a 2:1 balun at the feedpoint. 75 Meter Dipole: 10 Meter 7/2 Wave Doublet? +1 AMfone! Worldtime : On AMfone HOME ABOUT AMfone AMPX I tried this with a 160 meter flat top before. For example, the 140-foot (80-meter) Cobra also resonates near 2. It consists of a center feed point, where the antenna is connected to the transmission line, The 160m doublet wins again. My model of the Double L included a tower and a yagi as used in other models. Now at the ends of the 80 dipole add the trap for 80 meters, and right after the trap add a loading coil and then the rest of the distance to the tree for the 160 meter dipole. Increasingly, hams are replacing G5RVs and other multi-band dipoles in order to realize the Cobra's extended coverage and great performance. B. com . On the 40 meter band I have found a very interesting attribute for the system. $22. $151. The feedline must be affixed to the antenna more se-curely than the drawing shows. Yay! I am planning a non-resonant end-fed using a Palomar Engineers 9:1 unun with a wire length of 135 to 138 feet for 160-80-40-20-17-15-12-10 meters (based on the The doublet is the same thing in principle, but it is fed differently and as a result offers multiband and gain. Find Kelemen Monoband Dipoles and get Free Shipping on Most Orders Over $99 at DX Engineering! Kelemen Monoband Dipoles are high-quality, preassembled wire antennas featuring full-size models and a few shortened low-band models with coils for lengths that are easier to fit in the yard. Due to the narrow In CQWW 160 CW N E W. 4) Doublet, dipole There’s no difference. Brand: Buckmaster. View and Download MFJ -1777 instruction manual online. Cebik wa6cwv. It never performed well for me. I mainly use it to work fellow PVRC Club members, late in HF Contests. It is always a pleasure to welcome newcomers to the "gentlemen's band," as 160 meters has been called for many years. 160 meters is the oldest amateur radio band. Estimated Ship Date: Today Would you rather pick it up? Select Location. 9 meters wire at its end. more usable on 160 Meters, but it will work with limited capability on 160 with the length shown using a good quality antenna tuner. 160 meter use of G5RV. I want to use 50 ohm coax for feed or since I have a lot of it, maybe 75 ohm coax. I cut the 80m leg at 67ft and trimmed for best SWR at 3. K4TR Here is one way to squeeze in a resonant 160 meter antenna (no coils) where you don't have enough horizontal space for a full-length dipole. included). I wouldn’t say it is a revolutionary design, but it does take a different approach to the idea of compressing a full 160 meter Antenna Experiment. Manufacturer's Part Number: DX-OCF-160 . Each leg is continuous wire no cuts or splices. 5/3KW, SO-239 In/Stud Output, FLAGPOLE OCF, G5RV, ZS6BKW, BN4000 Replacement, Ladder All Band HF Doublet Don Butler - N4UJW. SHERWOOD'S Contest University. it is too short for 160. 250Mhz Download the executable file for it here. ” Operation on 160 requires a tuner and a good RF ground system. antenna for 160 – 10m I bought one of these antennas several years ago. Owen Duffy: Feeding a G5RV. It was 60 feet high on the short leg and drooped down to about 25 feet high at the end of the long leg. 98 Share NOTE *** A wide range tuner may be needed to tune this antenna to However, when I operated on the lowest ham band, 160 meters (1. But few have signals that rattle the walls in About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright In my next installment on my 160-meter, 3/8th wave inverted ‘L’ I will discuss the process of launching the antenna, hooking it up for the first time to my radio and the contacts I made. The L is used on 80 as an end-fed half-wave, a best-performing single wire antenna for both local and DX, with advantages over dipoles, inverted V's and simple verticals. Footnotes 1 Unadilla Traps 2 L. W4RNL: The Zig-Zag Dipole-Doublet. Arguably the best HF antenna! 160 meter band. Authentic glazed ceramic end insulators. If you would like to help with the cost of this channel, please consider becoming a Patreon by visiting: The doublet, simply put, is just a dipole. $329. Watchers. The 160 meter dipole is 270 ft. We have surveyed some of Full Wave Loop Antenna Wire Kit for vertical or horizontal loops (square, rectangle or delta shaped) from 160 meters to 10 meter. Two of the biggest challenges are the physical size of efficient antennas and noise when receiving. Rated #1 by eHam users as the best horizontal antenna for base operations for over 10 years. 160 meters is mostly a winter band and I do not think I can justify it to myself to dig up the lawn and bury half a mile of radials. 80 meters can be added to the L/FCP without changes to the aerial wire. The K2KQ design calls for two dipoles bent into a C shape and connected at about the midpoint of the tower (mounted about 3 ft away). I think the furthest contact on 160m is about 750km distance, on a the fundamental frequency. “This aerial is one I have used for top band (160 metres) – it was suggested to me by Alan G4ERZ, also of Hull. MFJ-1777 antenna pdf manual download. 99 (Standard 6 Wire All-Band 160-10 Meter Doublet/Vertical "T") VT/6W-160 DG - $175. I have heard that in the past, but thought it would be shaky, narrow-bandwidth, RFI problems, etc. Documentation. Super strong custom fiberglass center insulator provides stress relief for ladder line (100 ft. The bandwidth limitations on 160 and 80 meters can be largely offset with an antenna tuner. Title: Build a Space Efficient Dipole Antenna for 40, 80 and 160 Meters The Basic Dipole Antenna for 160 meters One of the major problems with a dipole on 160 meters is physical size. You can use a MFJ-998RT or MFJ-993RT remote antenna tuner, or any indoor antenna tuner that will handle the power you require, and a wide range of impedance variations. A similarly designed, remotely tuned 160 meter inverted L ground plane was also erected. If you don't have room for the 160 or 80 meter version, design it for 40 meters and up. I have a spot in a valley, I know valley's aren't the best, but I am not sure how to calculate which peaks to hang it from to get the center of it close to my operating location. 5 [] I have a question about a 160 meter dipole. I used glass fibre I have had the original W7FG 80 meter doublet with 600 ohm feeders up over 10 years in two different locations without a single My set up is 850ft !!!! of true ladderline and a Doublet, cut for 160 mtr, up abt 60 feet. N1BHH Member. Free Shipping; Share with your friends. Includes end insulators, #14 Insulated stranded copper wire and spade lugs for attachment to an optional balun Insulators are a very stealthy, strong, 4 PVC, 2 1/4" long. It means that the final trimming must be done using an antenna impedance meter. I hope you find this video informative and helpful. 160M End-Fed. Quick view View Options. Similarly, the 73-foot (40-meter) Cobra also covers 60 and 75 Meters. 160-10 Meter W7FG True Ladder Line Open Wire Fed Dipole 240' Dipole 50' Feedline $162. Readme Activity. Here are some other 160 meter antennas that will take a little more planning and monetary outlay than the previously mentioned antennas: Off-Center-Full-Wave Doublet Antenna. I used glass fibre Part Number: BMT-DX-OCF-160. When I constructed it, I used a capacitance meter from each side to ground while adjusting end heights to get the same C with respect to ground. Also optimized for the 40 meter band. last updated 23 December 2024. by TopbandHams. The StockCorner JC4s The all band doublet antenna is nothing more than a 1/2 wave dipole cut for your lowest operating frequency and fed with twinlead, ladder line, open wire, etc to a tuner that If you don't have room for the 160 or 80 meter versionthen DESPITE what you may have read elsewhere, short antennas such as the one pictured here do indeed work relarively well on 160m, provide you provision for the high voltage and high current involved. Some hams call the relatively low dipole a cloud- burner. Very efficient, with a wider matching range than my Johnson Matchbox. lol, Found the problem, please erase my provious rants against this antenna, it is great! KG5CGN The doublet is 133’ long, and fed with 40’ You will be surprised with the performance, it will be NVIS but there is always an off chance for some 160 meter DX. Estimated Ship Date: Today. 8 MHz 160 meter dipole: 35-60, 170-195 or 210-235 feet [Avoid 130, 260 ft] He’s probably gonna say get the 1171 and a big ol’ antenna tuner. Using the Palstar AT4K tuner Here is my statistics (countries worked) for 2014 (until today): 160: 32 80: 57 40: 76 30: I have a question about a 160 meter dipole. I had the center of the doublet supported and both legs were also at 80'. Cebik, Portable wire antenna for 40 and 80 meter made with a RF Chocke. Do not try to use this antenna in its supplied, center-feed configuration on 160 Meters, as you risk damage to your antenna tuner and/or transceiver. 55 MHz (2018 – till now) The completed doublet consisting of two wires (40m each), dipole center and 15m of 450 ohm twin feeder (left) Every antenna is a set of compromises. For our Figure 5 compares the 20-meter elevation patterns of both the vertical doublet and the monoband monopole with a sloping ground plane. List Price: $ 24. This is the 160 meter Double Bazooka. This is how I did it in the "schematic" below: Here is a drawing above showing the 80/160m antenna. 160 METER OPERATION AND GROUNDING The MFJ-1777 will can be used on the 160 meter band as a “Marconi 10-160 meter end-fed 60-foot long HF Antenna that enables you to use a tuner to achieve a near perfect SWR, with limited efficiency while using a tuner on 160 meters. Linear Amplifier. We listen! Suggest a price without Options and marketing will review your expectations. There was 160 METERS---10 METER; "KISS" All Band Antenna System. Stars. I wouldn’t say it is a revolutionary design, but it does take a different approach to the idea of compressing a full-sized dipole into a tight space. EZNEC antenna description files Resources. Handles 1. More info on Double Zepp Antennas. Po Laying down Ground Radials for Vertical Antenna; Tutorial: How to crimp connectors, strip wire and Magloop antenna & my new coupling system (4K video The main HF antenna is an All Band Doublet fed with ladder line and matched with a T-Match antenna tuner including a 1:4 current balun that gives access to all HF bands including the 160m band. This post will not tell you what length of wire or feedline to use for your doublet. Never thought I'd have bullet damage to anything on my property, but living out in farm country I guess someone shot aT a bird of some sort roosting on my rg213 feed line. NVIS dipole. You've reached the page for Short Antennas for 160 Meters by Grant Bingeman, KM5KG. Now on to experimentation with the 160 and 80 meter bands. Just stick a small or fake TV antenna on the 40 foot pushup or even a small 2 meter beam. 102 ft. Terminated Sloper Antenna. The Hard Choices 3. by Rob Sherwood (SSB-06) IOTA CONTEST WINNER "OZ/DL5CW" USES AERIAL-51. 40m - 80m - 160m Short Dipole Antenna. Years ago I ran a 160 meter doublet with window line to a 1:1 bifilar choke & 15 feet RG-8 to an MFJ-993. About 7 s units down from the vertical ground plane. How efficient is the Cobra? simple doublet antenna. Off-Center-Fed Full-Wave Doublet Antenna. 10m -160m Multiband “Z” Antenna. for 80/40 there is plenty of space. MAXI-CHOKER Coax Line Isolator/Balun, 1-61 MHz, 1. As the elevation pattern shows, most of the radiation is above this angle. 7. 67 out of 5 stars. With it, yesterday, I was able to get Benin (TY0RU DXpedition) into the log on 80m, confirmed on Clublog. 4. all band doublet. 160m Half-Sloper Antenna. If I could shorten the ladderline by adding to the tank coil how would you calculate for this 73, Chuck N3DRB The Derb: moxon10. 00. Let alone to my wife! The antenna is relatively inconspicuous. a quarter wave vertical is out of the question, at just under 40 meters in height (130 feet)! Granted, I could have considered a top "loaded" vertical, with a top coil (ind By flipping a switch which actuates a SPDT 12 volt relay at the antenna feed point in the dog house, the Tee Vertical becomes a 160-10 meter horizontal doublet with lot’s of gain. 160: 80m: 3. A Broadband 80/160 Meter Dipole An easy to build single wire antenna for 160 and 80 meters with a better than 2 to 1 swr across the 80 meter band. I hope yo Using my FTdx5000MP, I compared the 20m CW signal strength from a SOTA station in Arizona, using all 4 of my antennas. I just installed an 1171 for my open-wire-fed 80 meter doublet (used as a non-resonant multi-band with a tuner) and very happy with it. Kelemen Dipoles are rugged; strong but lightweight, with good stability and excellent At the top of the top-band list is the DX Engineering 160 Meter THUNDERBOLT® Vertical Antenna. HOA HF Vertical. Except it has 100ft of At the time I was using a 80 meter dipole and using a KNWD AT-230 to tune it up on any frequency I wanted to work with Find Wire Antennas 160 meters Wire Antenna Band and get Free Shipping on Most Orders Over $99 at DX Engineering! Amp up Your Operation with the DX Engineering Super Card Antenna, Shortened 160 meter Monoband Wire Dipole with Balun, Assembled, 1kW, 124. 6. Customer service is second to none I need a 160m Antenna. Over the last 28 years I have tried many different 160 meter antennas. 8 MHz and on 160 meters. ez 10 meter Moxon (from L. My question; if I make a dipole for 160 meter @ full length, is 253 feet or there abouts. Sign In Upload. Each leg is 130 foot from center to end. The dipole antenna still remains the primal antenna. The doublet is the root antenna, of which the inverted-V is one variation. all band doublet covers 160-6 Meters with balanced line tuner. Tuner adjustments are monitored in an SWR bridge or directional watt-meter (not shown). Use as inverted vee or sloper to be more compact. Use on 160 Meters as Marconi with tuner and ground. Fortunately, Al Christman, K3LC, did a lot of number crunching and determined the optimum number and length of radials for 40, 80, and 160 meter vertical antennas. November 5th, 2017 at 8:24 pm. I am glad I purchased this antenna, this design is a performer no doubt I have not needed my amp AT ALL for any of my 10-20 meter contacts, I enjoy DX and have made contacts globally with 100 watts usually on the first call with surprised responses when the DX stations finds out I am only running 100 watts. It worked well & tuned on all bands. I was awarded First Place, Single Operator, Low Power for the Santa Clara Valley section in the 2007 ARRL 160 Meter contest. This forms an effective multiband antenna, The HybridDX is a 135-foot doublet configured to fit into a smaller space. The formula 468/F will give the length for any given frequency, but for many hams the room isn’t available to put up such an On my usual 80 meter net I did some comparisons between my usual signal on a 240′ wire antenna and the GAP, the GAP was down 12 DB as to be expected, does that mean the GAP is a poor performer, no it means that the take off angle may be lower and since it is only 25′ tall as compared to 240′ 600 ohm fed wire being 12db down in my opinion for what it is it works pretty My 80m doublet will tune 160m but it is not a very good antenna and is only 20m up, so I really only work out to about 700 km at best on 160m. 95; We Also Stock The 160 meter Version Of This Antenna Which Has a 204 ft Flat-Top Portion. VK2IK Rating: 2023-09-18; Great value and the all time classic doublet - cant go wrong Time Owned: more than 12 months. THE LIST. A 5/8 at 30 feet to the base, 50ish feet at the tip. 160-10 Meter W7FG Open Wire Fed Dipole- 240' Dipole, 100' Feedline; 600Ω or 450 Ω Open Wire Ladder Line; One Conductor from Balun or Tuner to Far End Insulator; Simple design, 1 total length of wire for each leg of the Review Summary For : KK4TR G5RV 80 - 10 Meter Doublet; Reviews: 3 MSRP: $54. With a center-fed doublet, we generally relate the development of lobes in the E-plane or azimuth pattern to the antenna length in integral multiples of a wavelength. long, ultra-high quality center-fed dipoles. 7 ft. MODEL 807-UL. I’ve used it (at the appropriate time of the day) to make ft8 contacts on 160, 80, 40 and 30 meters. ANTENNA. The 100 - 105 feet long doublet length reduces large impedance excursions present in half wave 80 meter doublets when used on harmonics. The FD4 (FD3) Windom Antenna No tangles ! I bought the 160 meter doublet with 50' of 600 ohm line. These are the basic antennas that will get you on 160 meters with a minimum of time and expense. I use a ground rod with coupled agricultural fence and 30 odd length radials and have fun on 160m with that set up. The Compromises 2. Owen Duffy: Bowral G5RV for local contacts. and the 80 meter dipole is 130 ft. Is there considered an ideal / optimum length for a doublet for use on 160-10 meters when fed with open-wire feedline and a balanced tuner in the shack? While listening on 40 meters one day I heard a ham on 80 meters using 100 watts into a true ladder line doublet antenna from trueladderline. And the 160 METER OPERATION AND GROUNDING The MFJ-1777 will can be used on the 160 meter band as a “Marconi Antenna. 1. My longest-distance contact on the band was only about 1100 miles away. This one is no exception. Then I brought the ladder line all the way in to the 993 and used its internal balun, and it seemed to work just a little bit better. G5RV Antenna: The G5RV antenna is probably one of the most maligned antennas in the world. The ladderline goes to an all band doublet. for the 160 Meter Band. Handles full legal limit power. Requires an Optional Mount and Cable. SKU LLDCI. Short Antennas. As you can see, it may even be easier to hide a 160 meter Inverted “L” than a 40 or 80 meter Inverted “V”. 6 MHz: 51 W4RNL: The 44 Foot as a 40-10 Meter. 15-10 Meter My 40 meter doublet works great an all HF bands 40 through 10. 3 stars. com. Figure 8 – Extended ‘Further’ Inverted L Vertical Radiation Pattern. Cebik W4RNL cebik@utkvx. 5m long G3RWF Doublet 18m apex slopes to 45 ft with 450R line 15m long I want to make a 160/80/40 meter dipole. Certainly in a fixed setup this antenna has its advantages. This antenna was used on 160 m in December 2019 on WSPR with 20 W over several nights. 2 One solution is to add some complexity to the 160 L/FCP to achieve 160+80 or 160+80+40 in the same antenna space. But here it goes, I spent the last 5 hours putting up a 100' 160 meter doublet 80' went straight up in a white oak on my property and 20' ran horizontal at 8' above ground to the 4:1 balun. So here is the meat and potatoes of this antenna. It was useless. 9 MHz Full-Wave Loop Antenna. Radials can be a pain to lay down, but you will see a significant performance improvement. My thoughts is, make a traditional 80/40 fan dipole. Let's look at Inverted L, Sloper, Loaded Vertical a Compact Dipole and the Halo (loop). (from wa6cwv) About. Do not operate on a lower frequency for which the antenna was designed - tuner damage may result. edu) moxon12. This is certainly not optimum, but works OK. The 160 Meter band dipole antenna is symmetrical so that the noise level will in many cases be quieter compared to asymmetric antennas. Schematic layout of the center-fed Zepp. Let us consider the problem, walk the area and Vertical becomes a 160-10 meter horizontal doublet with lots of gain. Submitted by K8KAS. I will show you on this webpage how to calculate a Doublet antenna tailored for several 160 meter Antenna Experiment Part 2 – Doublet Antenna – 1. VK5AH -HF 4 Bander dipole A multiband 80-40-20-15 meters Very well built. I have a 136-ft doublet, connected to a manual antenna tuner, with an open feedline. I use a special EZ-Hang sling The G3RWF Doublet with its dropped arms has been modelled at a of 18m height, with the ends at 15m, only the feeder length has been changed in each model. And so it goes on and on What’s in a name? FLAG POLE SUPPORTING ONE END OF MY DOUBLET: This is a good idea if you have neighbours who aren’t keen on aerials. THE WALL OF SHAME. Add to my manuals. It will tune 160-6m using a balanced tuner. Pingback: Casual-Freaky Friday November 3, 2023 – CBARC TechNet. 0 MHz,) performance was sub-par, since the dipole was only 25 feet above the ground, and that’s just a fraction of a wavelength on 160 meters. All-Band OCFD. That is what I I know many of you are anzious to get started on this long-awaited 160 CFA and there is probably enough information in this Part 1 of the 160-meter CFA series to go ahead and get started on your own project if you don’t want to wait for the Part 2, which will be published in the May 2000 issue #37 (due out May 1, 2000). 10 meter dipole "Loaded" Dipole. 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. 2017 Monticiari Hamfest. 8. The Has anyone tried a doublet on 160? › Inverted L 160/6 meter band HF Antenna SWL 3KW Dipole Marconi; Ni4L Inverted L 160/6 meter band HF Antenna SWL 3KW Dipole Marconi. It is not necessary to have your antenna mounted at 100 feet to make contacts. Interfacing. I find the band to be very quiet other than during contests, often very noisy with atmospheric noise and my 160 dipole and advice for new hams The Most Efficient Multi Band Wire Antenna Since 1985 If you've got the room for a 160 meter dipole, give some thought to putting up a full wavelength loop instead. My most recent antenna for top band was an odd shaped 160 meter full wave length loop. Delete from my Page 3 45 degrees and almost vertical. True open wire line: (and most other 40-160 meter antennas), With a good antenna tuner the antenna will work 6 thru 160 meters, but this antenna will only tune the 160 meter band if the open wire feed line is the proper length. 22 Different Wire Antennas for the 160 Meter Band CQ CQ 160. My doublet is a center-fed I'd seen all sorts of recommendations Online about the length of wire for a 160-Meter loop, and none of the were 160 Meters. 3. The old Murch likes the taste of it just fine. The final antenna investigated here is the G5RV dipole or 102 ft doublet. Has regular 3/8-24 base thread. Thanks again, Pete. 1 1/8" hole separation wire antenna insulators and may be black, gray or a 140-ft. The 80-meter azimuth pattern is taken at an elevation angle of 45 degrees. I couldn't get the SWR under 3:1 160-10m Doublet (Dipole - 240ft) with 100ft feedline HF Antenna Flex-Weave 160-10m Doublet (Dipole 40 Meter Band Tuneable short 4ft Mobile HF stick antenna. I have a 160 meter double zepp antenna which is 735 foot long. In the evening when most of us have time to relax and enjoy a little time on the radio, the higher frequency The broadside doublet(s) 2. The doublet is supported about 8-inches off the ground. It also used to be the lowest frequency band allocated to the amateur radio community. Conclusion. For years the handbook has shown the 130 foot center fed "doublet", the ends about 25 feet high. Well I recently acquired a MFJ-927 remote antenna tuner so I thought I would give it a try. About MFJ-1777 - All Band Doublet - 160-6M. With a view to VSWR Meter. If you're not getting the top-band results you expected, you'll find these antenna tips of use. The 80 Meter Doublet With 300 Ohms | ON THE SQUID. K4TR D&G ANTENNA MFG & SALES At times due to the nature of propagation on 160 meters during propagation disturbances, a low dipole can outperform a Tee Vertical on DX and is also quieter. Buy Now. Covers all bands, 160-10 Meters with antenna tuner. Add This antenna covers 65 kHz of 160 meters, 75 kHz of 80 meters and the entire 40-meter band with SWRs under 2:1. The close The half sized version, 73 foot (40 meter) also covers The original Cobra antenna designed by W4JOH can be built as an all band hf antenna covering either 160 thru 10 meters or 80 thru 10 meters and is built using standard It performs on it's primary and harmonic operating frequencies as a standard ladder-line fed doublet. It worked well in it’s only test, and will be reconstructed. Can be adapted to work on 160 meters by adding additional 6. How long is a 160 meter dipole antenna? 265 ft. Personaaly I use a 135' doublet for all bands, on 160m I join both ends of the 450 ohm feeder to one leg of the palstar, join the station rf earth to the other and Writing an article for the rest of us to enjoy would do just that. In practice, the top length of 102 ft fitted exactly between the masts and it is easy to match on A “Doublet” is simply a center fed wire, usually horizontal or in an inverted vee configuration, fed with parallel-conductor line. Mine loads up The PEF 160-10 contains a FT-240/61 trifilar wound, Inverted L 160/6 meter band HF Antenna SWL 3KW Dipole Marconi Ni4L. It will give you omnidirectional coverage, and you can tune it well to the higher bands. 160-6 meter Double Off Center Fed antenna layout (using a double tuned stub for better 20/40 meter performance) Here is the 160-6 meter SWR graph using 200 feet of RG213 feed line and an average height above ground of 35 feet: Palomar Engineers PAL I ran a 160 meter Buxcomm off-center fed dipole for about a year. The MFJ-1777 102 ft. A horizontally polarized antenna would be needed for the “run” rig for good coverage on 80 meters, however, particularly for domestic contests such as the ARRL Sweepstakes and the Washington State Salmon Run. A number of other items at this site address the kinds of patterns that we can expect from a 250+' doublet and from horizontal loops (HOHPLs) of various shapes across the HF region. The original Cobra antenna designed by W4JOH can be built as an all band hf antenna covering either 160 thru 10 meters or 80 thru 10 meters and is built using standard It performs on it's primary and harmonic operating frequencies as a standard ladder-line fed doublet. Modified 135 Foot Doublet "For 160 you need at least a few radials at the feedpoint to reduce ground losses. zip An assortment of 16 different but related inverted L type antenna models for 160 and 80 meters. What if you can’t put out that many radials? Perhaps this is a temporary installation or you simply don’t have that much wire—for a 160 meter vertical that would be a lot of wire. 73, Tony RE: 160 Meter Longwire for Limited Spaces Reply by W1JKA on January for the 160 Meter Band. Hence, the preferred lengths are usually about 260′ for 160-meter coverage, 135′ for 80-meter coverage, and 67′ for coverage down to 40 meters. This is possible to achieve on a The HybridDX is a 135-foot doublet configured to fit into a smaller space. Half Delta Loop Antenna. Reply. The two most common suggestions seemed to be around 558' and 527', to include 160m and to maximize the amount of wire in the air. This Page Covers 1. B. I am submitting this short article to describe an ALL BAND 160M -- 10M Simple Antenna System using a 4BTV antenna and a couple of traps plus some wire that has worked extremely well for a number of Ham's locally over the last 10 years or so. 98 Quick View 40 meter Cage dipole Ni4L. Double Extended Zepp Antenna. 1" wide. However, it's not great on 160m as it is really a 1/4 wave dipole and only 20m in the air. It now takes a back seat only to my Palstar AT5K. I am still finding tune points but highly recommend the antenna. An end-fed wire develops lobes in length increments of ½-λ. 5) Any centre fed aerial working away from it’s resonant frequency. This Antenna Like All The Larger Antenna's Are Made To Order And Are Shipped Very Soon After Payment Is Recieved. Double Doublet. My doublet is a center-fed A 160 meter dipole antenna is a type of wire antenna that is designed to operate on the 160 meter amateur radio band, also known as the top band. This antenna is so common on the bands that I felt obliged to include it. Homemade 40 through 6 meter HF portable multiband antenna, an aluminium antenna construction article, with plan, drawings and photos VK5AH -HF 4 Bander dipole A multiband 80-40-20-15 meters dipole wire antenna that can be extended to cover 160 meters too. Wire Antennas. 160-Meter Wire Verticals. The vertical section of 450 ohm ladder line is 85 feet with each top hat measuring 130 feet G5RV construction. This antenna was Two days after I posted this, my 160 meter inverted “L” antenna was taken out in a storm. Fanned dipoles 4. Some designs have yet to be discovered. Home; About This Site; Beginner’s Corner; I saw another post on here about receiving 160 meters. Therefore, reviewing what happens to the patterns of a center-fed doublet is critical to our overall understanding. 5 kW. The difference Have you use that antenna on 160 meter ? Like Like. S-Meter Accuracy. The purpose of this article is to provide appropriate information to address these two challenges, along with general information about other issues necessary to get your feet wet on topband (also One radial is used for 160 and two are used for 80. Just call it a TV antenna. 8 to 2. Download Table of Contents Contents. K7AAT Rating the reason I abandoned my 80 meter doublet fed with 450 ohm ladderline is that I encountered problems with the SWR constantly changing when I The 135' Center-Fed Doublet Although our main topic is the inverted-V, we need a point of reference in order to make sense of the data that we gather. Handles 630 Meter Antennas •Loaded 160, 80 or 40 meter antenna •The vertical section is the main radiator; the horizontal wires of the antenna are the capacitive hat for loading a physically short antenna •In my case, I have a 160 meter doublet. It consists of 140 feet of insulated wire, the first half of which (70 feet) is space wound on an insulated tube. The other 80 meter radial runs out the side yard to a tree, bent 90 degrees, ending at another tree. As noted, the G5RV 102′ The 160-meter antenna dilemma. In the 2009 CQWW 160 Meter contest, I worked 46 states and 7 countries using 600 watts in just a few hours T/6W-160/10 DG - $199. available supports (tower and trees) 3. A 160 meter dipole or Inverted-Vee at even modest heights can be expected to work well. 95. utk. Part Number: KEL-11510-KL38. Courtesy of Mike, KD0MDI Thanks Mike! Has anyone tried a doublet on 160? 160 Meter Antennas. Screen shot, non functioning Same calculator setup for calculating a dipole for 7. Double Zepp Antenna. Figure 1. $377. Instead, I will describe a procedure by which you can model an antenna and feedline (that either you I was recently reminded that I can use my 80 meter Dipole antenna to get on 160 meters. near all, HF bands: the multiban d tuned doublet an-tenna—or, as it is often called, the center-fed Zepp (Note 1). ez 12 meter Moxon (from L. The assembled HybridDX is 79 feet long and designed to work on 160 through 6 meters with an antenna tuner. G3RWF Doublet 18m apex slopes to 45 ft with 450R line 18m long G3RWF Doublet 18m apex slopes to 45 ft with 450R line 16. available horizontal space 2. antenna on the 60 meter band. TB Contest Calendar . Random Length Radiator Wire Antenna. Leave a comment Cancel reply. cqp iitd vlbm ioyls qvmu mipscl iuqq qes tssr sxiqmxi