6 Meter Magnetic Loop Antenna For Sale

I have an MFJ 902 6 through 80 meter antenna tuner. It can coordinate our company’s EMI-9KA / EMI- 9KB EMI. Magnetic loop receive antennas are a great weapon in the fight against natural and man-made noise. 6 meter band 6cm 10 meter band 23cm 50 MHz 70 MHz 144 MHz Amersfoort antenna ATV Baby loop certificate CG-3000 Ciro Mazzoni contest CW D-Star DARC DMR DXCC eQSL HAMNET Hamshop. My most recent antenna for top band was an odd shaped 160 meter full wave length loop. Flux and brush to spread the flux. Copper pipe sanding brush 8. Magnetic Loop Antenna for 80-20 mtrs by Frank N4SPP This time, I used a 20 ft (6. The HG-1 Remote Loop Tuner It is a compact, easy-to-use remote tuner for a Magnetic Loop Antenna (MLA). It incorporated a pair of 807's in the final putting out 100 watts. Assembling the 20 Meter Antenna Matchbox For the popular 20 meter band, a suitable inductor can be made with 26 turns of enamel coated # 22 copper wire wound on a T80-2 toroid as pictured on the lower left. More Buying Choices $41. The Horizontal Loop, also known as the Loop Skywire Antenna, is an old but very effective design. Get the best deal for HF Ham & Amateur Radio Antennas from the largest online selection at eBay. One of the best kept secrets of Amateur radio antennas are either the box, or delta loop antennas. 0m Comparison of 7. Rather, a good NFC antenna is as large of a wrapped coil of wire as possible. This antenna is for the QRP amateur that is looking for a small antenna for home, backyard, portable or the park use, while it is also usable for hiking. W6LVP loops cover 2200 through 10 meters (135 kHz through 30 MHz) with no tuning or adjustment. Our full line of broadband antennas includes six variations: log periodic (LPDA) antennas, biconical radial isotropic antennas, radial isotropic omni-directional antennas, magnetic field tracking antennas, broadband horn antennas, and 3D RF tracking antennas. We are also currently working on designs for Vertical Antennas, so check back with us for updates. 6 Meter, "Magic Band" loop antenna Ham Radio Horizontal SSB six meters learned model of. 50MHz antennas plans, homemade antennas for the six meters is a curation of 162 resources about , Comparison of Commercial 6m Antennas, J-Pole Antenna for your Packet Radio Station, J Pole antenna for 6 meters, The M2 6M7JHV Antenna, 50 MHz Coax Dipole. Welcome to the Magnetic Loop Antennas page. Our selection of limited space small loop antennas offers great options for small lots, apartments, condos, hotels, and even homeowners associations with tight restrictions. QRP portable qrp skcc contest portable qrp antenna cw DX SOTA hoa restricted antenna morse code stealth antenna elecraft kx3 ham radio kx3 magnetic loop qrp antenna JT-65 WSPR calling cq digital modes mag loop qrpp reverse beacon network ssb #proudofmyson 10 meter 2 meter portable j-pole CWOpps EI13CLAN JT-9 Wake Island camping copper j-pole. One 10 – meter “Jungle Antenna” ground plane made with WD-1/T commo wire. The RFID antenna activates chips and transmits information to the reader. I also tested an MFJ Hi-Q loop indoors and found it worked decently, especially when located next to my glass patio doors. My Favorite 40m "DX" Antenna NOTE: This is not a plug-n-play antenna. I think the minimum capacitance of this junk box cap is too much. In part one of this series, I covered the use of one brand of commercially available, small transmitting loop antennas, also known as 'magnetic loops'. ; power divides between R rad and R loss. Cheapest solution. 40m-10m DELTA LOOP ANTENNA - GU3WHN The variety of one wave length loop shapes that can be deployed to suit the QTH. Octagonal Magnetic Loop Antenna. (6 meters) length of wire. If that is true, I doubt it. Description. Are you looking for the best magnetic mobile antenna mounts for sale? Shop all the magnetic antenna mounts at the Antenna Farm today. I also tested an MFJ Hi-Q loop indoors and found it worked decently, especially when located next to my glass patio doors. With only 60-cm loop diameter , this small antenna can be used on eight. W6LVP Amplified Receive-Only. The goal here is to put up a cheap, easy, and quick 2-meter antenna that is simple and unobtrusive, but works. For a coaxial fed, "One Antenna Does It All" you can't beat the off center fed antenna. Building the Magnetic Loop Antenna Since every ham has his or her own construction methods, I'll show you 'mine' if you promise not to laugh (hihi). Comparison of 5. Copper pipe sanding brush 8. They feature stainless steel hardware for long trouble-free life. The reason is they all use my MFJ magnetic loop antenna. Find high quality 6 Meter Antenna Suppliers on Alibaba. The Length of the 75 ohms coaxial cable " each " is 32 inches. Walls tend to block or weaken the electrical component of the signal but their effect on the mangetic component is very little. MagLoop, Founder & Owner. It is an off centre fed dipole, with 10 feet of vertical radiator. 6m Band HO Loop Antenna Our new HO LOOP is a result of a continued evaluation and development on reduced size, omnidirectional HORIZONTALLY polarized loops. I came up with an antenna that extended only 1. Describe your experience with the Loops-N-More 6M Loop (formerly KB6KQ 6m loops) and tell us why you give it the rating you did (required). Many thanks! That was a nice easy project and the. Arrow II Portable Antennas Solid Element Yagi Antennas Open Stub J-Poles OSJ Photo Tour of S. The length of a full-wave antenna is given by the formula 1005 / frequency in MHz = total length of the loop. 2 KW CW & RTTY. Now it was time to move forward and put up a delta loop for the higher bands. This improves the antenna's radiation pattern. Main antenna shipping and handling through UPS is $75. This ingeniously designed single wire loop antenna works in 4 amateur bands in a delta shaped configuration (hence I called it a multi-band mono delta loop). Dick described a 6M Halo antenna that was built from the aluminum frame of a 'generic' lawn chair. It works fantastic on 6 through 20 meters!!! However, I would like to also get on 40 and 80 meters. It is tuned as a magnetic loop by a pair of parallel vacuum variable capacitors, and fed through a 2 foot coupling loop tied directly to the coax, no tuner needed. it seems like something which I could get together if only some more data was available. 9 MHz continuous and is rated at 2 KW (SSB) , 1. 2 Home Made HIGH POWER Magnetic Loop. 10 - 140 pF @ 1 kv. OT mfj 1786 loop antenna. The Super Bazooka is with its length of 3,4 meter suitable for 160 meter. Addition of Gizmotchy Power Boosters to your Gizmotchy 10/11 Meter Antenna adds another set of direc. 0 MHz, photo below, details seen elsewhere on this website. INAC Magnetic Loop AX-330 I ordered by PA3EKE the Hy End Fed Antenna for 20 meter. Note: The little box at the bottom of the small one contains an air variable capacitor for tuning. Read the Omni FAQ page. It no longer has a null pattern on this band. Model: RF PRO-1A (Receive-Only Antenna) Shielded Active Broadband Magnetic “Moebius Loop” Antenna. Radio Direction Finding Antenna for VHF: I needed an antenna to chase down a noise source. A 6:1 UNUN transformer is located in an IP65 weather sealed box at the bottom of the 6 meter telescopic aluminium element. Longer radial wires, up to 135 feet each, would provide an improvement in signal strength for this 160 meter antenna. An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters John DeGood, NU3E [email protected] The antennas I am using are small magnetic loop antennas. The Isotron Antenna. For the main loop I used a soft copper tube, diameter is 10 mm, length about 3 meter. The one on the left is a 3 foot in diameter loop. The Super Bazooka is with its length of 3,4 meter suitable for 160 meter. Antenna Loop, Verona, Italia, VHF. Antenna consists of 6 half-wave crossed dipoles that would be used with a plane reflector (Sorry Not Available). 6 meter band 6cm 10 meter band 23cm 50 MHz 70 MHz 144 MHz Amersfoort antenna ATV Baby loop certificate CG-3000 Ciro Mazzoni contest CW D-Star DARC DMR DXCC eQSL HAMNET Hamshop. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. (Note: a 6″ Dia by 72″cardboard tube in used for shipping the main antenna. Both types of antennas are world renown for their unique characteristics in the 40 meter and 20 meter bands. To support an antenna, I have no tower, and only two trees that aren’t too close to a house. Three and a half to four foot loop antennas for several of the HF bands from 160- to 10-meters. Here we have collected some links to building instructions for 11m antennas on the Internet. By entering the height and width of your loop (36 or 48 inches each if building as per above) and the number of turns and distance between turns (I use 0. Worked 18 national parks this last year while running down the highway at 70MPH. G7FEK's antenna was built from G5RV leftovers it looks a little like a small, off centre, G5RV. And here are the elements for the antenna for the above SWR plot. I have used this antenna at two different modern semi-detached and detached houses and it has always worked well. The shielded loop (Faraday loop) may result in a lower SWR. net Abstract A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. Shop with confidence. 2 dBd forward gain with all backlobes more than 20 dB down across the FM broadcast band. If that is true, I doubt it. NewSuperAntenna is the Official Super Antenna Systems Corporation website. Maximum response is in the plane of the loop. W6LVP Amplified Receive-Only. Many RASON members truly enjoyed last month's collinear antenna. This type of loop is described in the ARRL Antenna Book, and the ON4UN book. 6 Khz 2:1 bandwidth 30 Meter trace76khz 2:1 bandwidth This is a trace of the 80/30 meter loop tuned on 20 meters. Vertical Dipole Portable Base Mobile Alpha Magnetic Loop antennas. 5 MHz frequency, you would need a 12 foot diameter loop and a 215 pF capacitor to achieve a 40% radiation efficiency. High Sierra Antennas - Mobile HF antennas Isotron Antennas - Interesting & very small antennas MFJ Super Loop Antennas Look at models1780-1788 Outbacker Antennas-- Terlin from Australia. The antenna, transmission line and tail are jacketed together in a buoyant sheath with fiberglass strength members. After some research I found the AOR LA-390 Magnetic Loop Antenna, which is a. Over the last 28 years I have tried many different 160 meter antennas. antenna for a tail. or any other portable or table top HF Scanner Radio. The basic configuration of a small magnetic loop consists of the main loop, coupling loop, and capacitor - fixed or variable. It is similar like the PAR end fed antenna. Antenna polarization is defined by the orientation of the electrical component of the emitted signal. The length of a full-wave antenna is given by the formula 1005 / frequency in MHz = total length of the loop. Limited space doesn't have to mean limited HAM radio performance. Best to have 2 antennas to compare signals! Devote at least a year to test antenna before giving up on an antenna. If you want it to work properly, you will need a means of measuring SWR, some trial and error, a little patience and at least half-a-brain to build this. 10 - 140 pF @ 1 kv. Well, I bit the bullet today and placed my order with MFJ for an MFJ-1786 magnetic loop antenna. 95 (1 new offer) 6 Meter HF Hamstick Style Mobile Antenna. It has been near complete in my basement since early winter. 2 MHz bandwidth. There are lots of projects and explanations about off grid portable power. I have now got to the point where I want a well constructed antenna that will perform well on 20m through to 10m for the space that I have. 2,6 kg 600 mm 50 Ohms MLA -M Magnetic Loop Antenna maufactured by B TV compan y is a „plug- and-play“ product. Copper pipe sanding brush 8. I started by pounding a 8 foot ground rod into damp earth at a strategic spot about 5 feet from the base of a tree in my back yard. The antenna is an inverted triangle with approximately 1 £83. The Small 3 foot diameter loop is naturally stealthy for HOA challenges and a perfect complement for vertical and small wire transmit antennas. Raymond Jackson ( kb9col ) is showing how to build your own 6 METER PLUS antenna. I also optimized a European version with metric dimensions for 87. The primary design goal was to offer a loop at lower cost than what is available but with better performance, high quality construction and features not found on the currently available loops. No physical connection exists between the main loop and coupling loop. NEW Design! 100 Watt 10-40M Magnetic Alpha Loop Antenna. This new design is easy to match in any situation. 6 METER, LOOP, ANTENNA, HAM RADIO 27 Watching. 0 In the effort of improving my ultra-portable HF antenna setup, I first looked into a Capacitively Coupled Magnetic Loop , better known as the Army Loop (or Patterson Loop). Directivity of a loop antenna A significant advantage of a loop antenna is its directional pattern, a "figure 8" shape with two null points separated by 180 degrees. Get the best deal for HF Ham & Amateur Radio Antennas from the largest online selection at eBay. Portable antenna systems for HF VHF UHF. Since then we have become the largest manufacturer of Amateur, CB, and Scanner antennas and accessories in the UK We are also the largest local authorised dealer for Alinco, Kenwood, Icom, Yaesu and Wouxun. Buy M Loop on eBay now! New Design 100 Watt 10-40m Magnetic Alpha Loop Antenna. This antenna is a 15 foot doughnut made from 3 inch aluminum tubing hung from a tree on our city lot. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from MFJ Enterprises, Inc. Figure 4 shows the basic structure of the square loop antenna. 0 In the effort of improving my ultra-portable HF antenna setup, I first looked into a Capacitively Coupled Magnetic Loop , better known as the Army Loop (or Patterson Loop). Portable antenna systems for HF VHF UHF. Although a compact transmitting loop for 160m would be difficult to construct in such a way that it would also be efficient, a small transmitting loop for 160m turns out to be fairly straightforward. 3 λ in size. Trending at $26. Notebook showing Small Magnetic Loop antenna results by cutting and testing method. radials contribute to the radiation efficiency of the entire vertical antenna system. Many configurations exist when constructing the main loop and secondary loop. Reviewed by Bob Allison, WB1GCMAssistant Laboratory [email protected] 5-band Small Magnetic Loop Using LMR-400 Coax for 10-20 Meters Larry Nelson - K5IJB. Disclaimer You are free to build these projects for non-profit home or club purposes only and at your own risk and without any guarantee!. 4 dB lower then a dipole or a vertical. Specializing in Broadband HF/VHF Antennas & Masts/Towers. A new version of the world famous Wellbrook Active Loop ALA1530. I connect mine to the sense antenna port of an MFJ 1026 noise cancelled/signal enhancer and use that to “mix” the main antenna with the Loop on the ground antenna. 10 thru 20M 100 watt Magnetic Loop (FREE NA SHIPPING) Sale! $ 279. It occupies a small space yet it works like a gem. The original antenna was designed as a moderately short antenna for the 10 meter band. 40 meter Delta Loop Joe on 21st Oct 2016 I recently purchase a 40 meter Delta Loop from Chris and received the antenna few days later after the purchase, I hung up the antenna in less than one hour in configuration, C , I hook up my antenna analyzer after the installation and I was Very surprise is flat 1:1 on the entire 40 meter band, 20 meter was about 1:2 on the top edge of the band and the. The G4ILO Wonder Loop is an inexpensive, easy to make magnetic loop antenna that covers five HF bands, 40m through 15m. Relatively being a newbie when it comes to the HF universe, I had never tried my hand with the magic 20 meter delta loop. Ultra low noise Active Loop Antenna Model ALA1530LN - North American version. I also tested an MFJ Hi-Q loop indoors and found it worked decently, especially when located next to my glass patio doors. Antennas for the Magic Band. 6 meter ground plane antenna (9 pages). I have now got to the point where I want a well constructed antenna that will perform well on 20m through to 10m for the space that I have. Building the Magnetic Loop Antenna Since every ham has his or her own construction methods, I'll show you 'mine' if you promise not to laugh (hihi). Double bearing. #: >>> Palumma 24W/4. 2 dBd forward gain with all backlobes more than 20 dB down across the FM broadcast band. Here is a great article on building your own 3 foot diameter loop from copper pipe that will fit in the attic of a single story home. As a result, in most cases a Mangetic Loop antenna will work a lot better indoors than a dipole. This small Yagi has 5. In fact, my 80 meter loop antenna could be tuned on 6 of the 8 bands with just the. I will try to explain in few words how the small magnetic loop antenna works. Tireless Carl has been very busy with various magnetic loop antenna. This information is primarily for the Amateur Radio two-meter band. I have this loop - it's the 40M-15M version with the tuning box. Are you looking for the best magnetic mobile antenna mounts for sale? Shop all the magnetic antenna mounts at the Antenna Farm today. Torch for soldering plumbing 2. Magnetic loop antennas - Why is an Magnetic Loop antenna so special. See the tables and plot below. Making a Coaxial Dipole If you start with a common half wave (λ/2) stainless whip and extend it all the way down through a λ/2 long support tubing, Homebrew Coaxial Dipole for VHF or UHF Here’s a base station antenna you can easily build for 146, 220 or 440 MHz. There is even a. 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. The Deluxe PreciseLOOP® HG-1 is a high gain Magnetic Loop Antenna (MLA) for receive and transmit use. Octagonal Magnetic Loop Antenna. The RFID antenna activates chips and transmits information to the reader. (picture only shows the bottom part). This last playlist is my portable off-grid battery and solar power for amateur radio communications playlist. If you need to use it for both the 40 and 60 kHz JJY signals, simply resonate the loop on frequency of the weaker of the two time signals. 5" gap distance for resonance at 145 MHz. The Super Bazooka is with its length of 3,4 meter suitable for 160 meter. A practical guide to making DX performance magnetic loop antennas for 160-40m. I live in an appartment and don’t have the space to put up a large antenna for my Kenwood R1000 receiver. Copper quality of the big loop is so important. This area deals primarily with low noise antennas, and discusses effect of antenna directivity on weak-signal reception. A circular loop is ideal, but squares, triangles, and other shapes can work well; just make the area enclosed by the loop as big as you can. Readers will find articles on the Handy Yagi Antenna, Compact 40 Meter HF Loop, and 20 and 40 Meter Verticals on "Autopilot". Five Band Indoor Magnetic Loop Aerial. - Excellent portability - made from foldable aluminum loop very convenient for traveling antenna. Torch for soldering plumbing 2. The efficient transfer of energy from the reader to the tag depends on the loop antenna tuned to the carrier frequency (usually 13. Ciro Mazzoni Baby Loop Antenna magnetic poop" which is very sensitive and requires no tuning and covers all bands up to 10 meters. This is a great step by step instructional video. A Tri Band Antenna for 2 meters, 220 MHz, and 70cm Antenna Figure 8 - Tri band antenna with helical loop Figure 10 Showing the directions of the magnetic. If anyone has tried a G5RV in 46 ft of garden you will know that performance is not that great, and the "½ size" G5RV is completely useless on 80 meters. W2LI Magloop Antenna - $165. Shop by Type Fiberglass Magnetic Center Load / Trucker No Ground Plane Whip Base Station Shop by Brand Firestik Wilson K40 Monkey Made President Procomm CB Mounts; CB Accessories. Notebook showing Small Magnetic Loop antenna results by cutting and testing method. O Box 645 Glenville, NC 28736 Voice: 828-743-1338 Fax: 866-304-8479. Cannot stress how narrow-band this antenna is. The Magnetic Loop antenna works with the magnetic component of the signal. Copper quality of the big loop is so important. Receiving antennas respond mostly to one component or the other: small, closed loop (less than 0. 6 meter ground plane antenna (9 pages). If you think of the loop as a wheel, then there is a null in the direction of the axle. INAC Magnetic Loop AX-330 I ordered by PA3EKE the Hy End Fed Antenna for 20 meter. A Magnetic loop antenna for 1-5 watts can be made fairly inexpensive. The Length of the 75 ohms coaxial cable " each " is 32 inches. Moonraker was established in 1978. The Small 3 foot diameter loop is naturally stealthy for HOA challenges and a perfect complement for vertical and small wire transmit antennas. For a coaxial fed, "One Antenna Does It All" you can't beat the off center fed antenna. This area deals primarily with low noise antennas, and discusses effect of antenna directivity on weak-signal reception. This loop was designed to be used with a QRP transceiver like the Yaesu FT 817 or the Icom IC 703. In addition, the coupling loop assembly easily adjusts in height to guarantee an optimal match on all bands. do you have any notes etc still laying about since its build ? The theory for calculating the loop is very simple. Although a compact transmitting loop for 160m would be difficult to construct in such a way that it would also be efficient, a small transmitting loop for 160m turns out to be fairly straightforward. Browse our inventory of new, used, and vintage ham radio antennas for sale in addition to a great selection of amateur radio antenna parts and accessories avaiable at auction prices. 0m ( approx RG213 Coax braid diam) QRP MAG LOOP TUNER (80 –20m) – G8ODE Mario G8ODE. The Loop Skywire, with a triangle shape called Delta Loop Antenna, is an easy to build multiband antenna, without the necessity of traps or coils, using just simple wire. You are eligible for a full refund if no ShippingPass-eligible orders have been placed. TAK-tenna 80 to 6 meter Multiband Antenna. Octagonal Magnetic Loop Antenna. I have been experimenting with small (generally less then 1/10 wavelength circumference) transmitting loop antennas in the HF bands since the 1980's. The Military antenna sales. 2 Home Made HIGH POWER Magnetic Loop. I will try to explain in few words how the small magnetic loop antenna works. Here is a 6 meter magnetic loop that I purchased from Bob, VE3UK. Loop Antennas for ham radio. I have been experimenting with small (generally less then 1/10 wavelength circumference) transmitting loop antennas in the HF bands since the 1980's. The radiation resistance for a magnetic loop antenna ranges from about 0. Keep in mind that an air gap of 1mm equates to a breakdown voltage of about 1KV, which can be encountered when as little as 20 watts is used. HF Electronics bvba is specialist in de verkoop en verhuur van radio apparatuur voor professioneel en amateur gebruik. The coupling loop features a novel hybrid coupling scheme that guarantees a match of 1. I start with just the Loop and then mix in enough of the main antenna to copy the signal clearly. While there are plenty of high performance antenna designs,. One 6 – meter “Jungle Antenna” ground plane cut for 51. The open ends of the boom and the PL-259 connector were sealed with a self sealing silicone tape called Rescue Tape. Taoglas have an extensive range of External GPS Antennas. Display: List / Grid. The control console displays location chosen and relative position. Add Review ×. I have run a lot of different mobile antennas in my 55+ years of being a HAM and this was rates as one of the best. The secondary is the main loop, and is the actual antenna. Invented and first patented by engineer Doyt R. 40 meter Delta Loop Joe on 21st Oct 2016 I recently purchase a 40 meter Delta Loop from Chris and received the antenna few days later after the purchase, I hung up the antenna in less than one hour in configuration, C , I hook up my antenna analyzer after the installation and I was Very surprise is flat 1:1 on the entire 40 meter band, 20 meter was about 1:2 on the top edge of the band and the. A circular loop is ideal, but squares, triangles, and other shapes can work well; just make the area enclosed by the loop as big as you can. soft copper tube closed by a 10 Pico farads mini butterfly capacitor. To install the feedline I slit the soil and run the RG-6 a few inches under the ground to avoid mowing over it with the lawn mower in the summer. The 300 foot length of RG-6 for the north-south loop has been out there for over 20 years and it still works fine!. The construction technique can be applied to other bands. 5 MHz and Below. 00 Check, Cash or PayPal accepted. Trending at $26. (Magnetic Loop Antennas) Steve Yates - AA5TB. SignaLoop HF-315 80-20 Meters, Mounts on a tripod or in a Tree branch. 0m Comparison of 7. On the other hand, received. I also optimized a European version with metric dimensions for 87. It is designed specifically as a retrofit for the popular preciseRF HG-1 MLA. (Note: a 6″ Dia by 72″cardboard tube in used for shipping the main antenna. I have been itching to get on 6 meters for years for many reasons. 1005 ÷ freq (mHz) = Length (feet). net -Drill more holes for antenna wires -Loop antenna wire through holes,. Browse our inventory of new, used, and vintage ham radio antennas for sale in addition to a great selection of amateur radio antenna parts and accessories avaiable at auction prices. Describe your experience with the Loops-N-More 6M Loop (formerly KB6KQ 6m loops) and tell us why you give it the rating you did (required). 1: Calculator results for a loop with a diameter of 1 m (3. In this case, the mag loop is the LNR Precision Loop, which has a tuning control built in at the base of the loop. After having marginal results on 17 meters using my Alpha-Delta DX-EE with a tuner, I put up a resonant dipole. He has the F Loop , the P Loop, and newer 2. Performance is better than anything we have ever seen and its wide bandwidth makes it immune to all weather conditions except heavy ice. The circumference of a true magnetic loop should be less than 1/10th wavelength and the coupling loop at 1/5 ratio to the main loop. Below is a diagram and some construction details. TWO ELEMENT PHASED VERTICAL SYSTEM "Christman Phasing" by W4NFR 5-22-2011 I have always been curious about vertical antennas and how to make them efficient. Worked 37 countries mobile with this antenna using a TS-480SAT and it's in ternal antenna tuner. It is similar like the PAR end fed antenna. Each DXtreme comes with your choice of wire radiator length's starting from 33' up to 124', allowing homeowners with more space the ability of improved performance while offering those with. The antenna is believed to be a Mizuho design, made under license for Waters and Stanton by Sandpiper Antennas in Wales. Like getting on the air for the first time or taking your license exam there is a certain amount of uncertainty when you first approach magnetic loop antennas, there are a few new ideas to grasp. Although this design has been around for a long time, it is only gaining popularity now due to the recent improvement in high power antenna tuners. This magnetic loop most surely can be a great antenna if you have the construction skills and the materials available. A tuned loop is designed according to a formula such that if there are the right number of wire turns of the correct shape and size, a variable capacitor connected to it will bring the loop into resonance throughout the AM band providing much more. So it is not practical to use it when I can not be in the shack to tweak the turning. Get the best deal for Ham & Amateur Radio Antennas from the Antenna for FT-817, 80 Meters Thru 6 Meters 25 Watts Magnetic HF Antenna 1MHz-20MHz for Hula Loop. Recently I also built a receive only magnetic loop, just for shortwave listening. This ingeniously designed single wire loop antenna works in 4 amateur bands in a delta shaped configuration (hence I called it a multi-band mono delta loop). The original antenna was designed as a moderately short antenna for the 10 meter band. The Isotron Antenna. Specializing in Broadband HF/VHF Antennas & Masts/Towers. Super Hi-Q Loop Antenna. If you want it to work properly, you will need a means of measuring SWR, some trial and error, a little patience and at least half-a-brain to build this. Super easy to tune. This is the perfect antenna for a Tech Class Operators or anyone desiring to work 6 or 10 meter band and still have the benefits of a beam over a wire. Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! Easy, Quick, and Simple Installation; Tunes & Performs Without Radials or Antenna Tuners; Handles Up to 1000 Watts PEP. HF/6 Meter Beam Antennas. It is designed specifically as a retrofit for the popular preciseRF HG-1 MLA. It is important to note that …. On twenty meters I can tune down to 1. 6 meter band 6cm 10 meter band 23cm 50 MHz 70 MHz 144 MHz Amersfoort antenna ATV Baby loop certificate CG-3000 Ciro Mazzoni contest CW D-Star DARC DMR DXCC eQSL HAMNET Hamshop. A practical guide to making DX performance magnetic loop antennas for 160-40m. The possible exception is between 20 and 200 miles. 65 meters or about 5 feet 4 inches above the top of the vehicle. I need to build up a motorized tuner for my loop but looking at the MFJ unit would save a lot of trouble. BNC Condor All-Band Portable Antenna by Austin The Condor is a true Multiband design and is a first in flexible antenna technology. High Sierra Antennas - Mobile HF antennas Isotron Antennas - Interesting & very small antennas MFJ Super Loop Antennas Look at models1780-1788 Outbacker Antennas-- Terlin from Australia. It is precision CNC made and developed by Bob himself. It covers 100-250 MHz and each element is built of a number of short pieces allowing it to be tuned. These are great VHF and UHF antennas for the new operator just getting started in either mobile or base weak signal operations. •Need lots of room, keep them away from metal objects like heaters and ducts •Wire antennas can be run near the peak of the roof inside the attic, bent in odd shapes to match the space available. 6 Meter Halo Antenna that covers 50 to 52 MHz at 1.