W6LVP Amplified Receive-Only Magnetic Loop Antenna - with T/R Switch. • Our regular antennas work by "recieving" the electric field portion of the radio wave. Center Height = 6.0 ft. Capacitor: MFJ-19 Butterfly Type (12-67 … Learn more here https://alphaantenna.com/product/hf-base-magnetic-loop-100-watts-alpha-antenna/ This is the Alpha Base Magnetic Loop after the 100+ MPH winds. To use the 10-40 meter configuration, simply remove the booster cable and revert to a single turn loop. The AL-705 antenna has a built-in tuning knob on the Alpha Match. Thanks for great article, I just purchased the 10-40 Alpha and was thinking of making an LMR cable for the 80 meter section but cannot find the length anywhere. NEW Design! Review Summary For : Alpha Antenna 10-40 Meter 100W Base Magnetic Loop + Remote; Reviews: 1 MSRP: 799 USD; Description: Remotely controlled 10-40 meter base and transportable Alpha Magnetic Loop Antenna for indoor or permanent outdoor base deployments, which is rated at 100 PEP SSB, 50 CW, or 25 watts for sporadic use of digital modes (10 watts for continuous use of digital modes). An optional 40-80 Booster Cable makes the Alpha Loop into a two-turn loop, enabling TX/RX on 40-80 meters, which also improves efficiency on 40 meters over the standard 10-40 meter configuration. Sales Tax will be removed for all non-Missouri purchases. In addition, specific models mentioned in the magnetic loop Antennas forum Like MFJ and more are here for future reference. The magnetic loop couples to the to the magnetic field of the radio wave in the region near the antenna, in contrast to a monopole or a dipole which couple to … An SO-239 connector on the smaller loop, which also consists of LMR-400, couples to your feeder. Notebook showing Small Magnetic Loop antenna results by cutting and testing method. HF Magnetic Loop Antennas suppliers category is a curation of 13 web resources on , MTM Scientific Radio Loop Antenna, Alpha Antenna, Kaeferlein AMA magnetic loop antennas. Recently, the Alpha Base Loop survived a derecho, which is a land-based hurricane. 100 Watt 10-40M Magnetic Alpha Loop Antenna. Free P&P . The smallest antenna described for 80 metres was a magnetic loop. HIGH POWER 10-40M MAGNETIC ALPHA LOOP ANTENNA This is what I carry in my Truck. A small current is transduced on the antenna and the reciever amplifies it and converts it to audio. What is a magnetic loop? The Icom AL-705 magnetic loop antenna is exclusively available from Icom Dealers. The better the antenna, the narrower the bandwidth. See all #AlphaAntenna reviews here https://alphaantenna.com/category/community-and-support/reviews/ For $300 the Alpha Loop came with a Self Supportive Magnetic Loop Antenna (MLA) made from Aluminum sections that are easily assembled with a few screws. Having said that, I use it for my regular station use because of the limitations of our rental arrangement. Only 3 left. Vertical Dipole Portable Base Mobile Magnetic Loop by Alpha Antenna. So, I ordered the 100 watt Alpha Base … VHF Antennas; UHF Antennas; VHF/UHF Dual-Band; 900MHz (ISM) Log Periodic; Mobile Antennas. Homebrew Magnetic Loop Antenna 40m – 20m. Great multiband HF antenna for your balcony or vacation. 100 Watt 10-40M +20W 60/80M Magnetic Alpha Loop Antenna. It has been used indoors and have managed to complete 2000 mile QSO’s from nothern lattitudes (weak reports but you can’t expect miracles) so far. Resources listed under Magnetic Loop Antennas category belongs to HF main collection, and get reviewed and rated by amateur radio operators. £47.99. Magnetic Loop Antenna Indoors Apartment. It does compact down to 10 x 11 x 25 inches for storage in the lower compartment of the optional LC-192 backpack. This AL-705 Enhancement Kit is available exclusively from Alpha Antenna, and it will: Add 60 & 80 Meters to your ICOM AL-705 magnetic loop; Increase efficiency on 20 … Over the last year and a half, I have worked over 229 QSOs including 21 countries, which includes countries in Europe and South America. Like Like. 10-40M $450 The v6.x Alpha Loop is a 10-40 Meter transmit/receive antenna, which handles 100W PEP SSB, 50W CW, or 25W for sporadic use of digital modes (10W for continuous use of digital modes). If you get a tuner from the MFJ 935 family, which is basically the "tuner" part of the STL, you can easily build a nice efficient loop yourself out of flexible copper tubing or similar and have an outfit that will run 100 W. Loop Antenna. W6LVP Amplified Receive-Only Magnetic Loop Antenna - with T/R Switch. The 40-80 extention makes the Alpha Loop into a two-turn loop, enabling tx on 40-80 meters, and improving the efficiency on 40 meters from the standard single loop. Extensive testing has enabled us to announce that all 2018 30W Alpha Loop antennas purchased after January 1, 2018 can accept the new power levels. 100 Watt Base or Portable 10-80 meter Magnetic Loop antennas from Alpha Antenna MagLoop. Chameleon Antenna has been a pioneer at rethinking and redesigning portable antenna systems since almost a decade! Max. I will try to explain in few words how the small magnetic loop antenna works. VHF Antennas; VHF/UHF Dual-Band; 900MHz (ISM) Hand-Held Antennas; No Holes Mobile Mount. How did we accomplish 100W power levels? I had never tried a loop until now. See all #AlphaAntenna reviews here https://alphaantenna.com/category/community-and-support/reviews/ I have had the antenna only for about a month. £429.95. Description. Alpha Antenna Complete Multiband Loop for 10-40M + Tripod & Bag. This compact, high-quality antenna is the perfect addition to your mobile or portable transceiver. $23.57 shipping. Overview: When we released the 2018 version of the Alpha Loop, we conservatively rated it at 30 watts. $245.00. A “Must” for any backpacker/QRPer, E-Comms, https://alphaantenna.com/product/hf-base-magnetic-loop-100-watts-alpha-antenna/. First, I tried something simple. Page 4: Safety Tips With 5 watts on 40m, I worked much of the western U.S. this evening. Amateur Antennas The Icom AL-705 magnetic loop antenna from alpha antenna™ operates on the 40 meter to 10 meter amateur bands.Maximum power is 20 Watts SSB, and 10 Watts CW/digital. Reducing the power cuts out these symptoms but then your signal is doubly weak - firstly due to the low power and secondly due to the inefficient antenna. Click & Collect. Minimum mounting height is 1 loop diameter high (about 3 feet or higher) off an earth ground. Site B backs up operations at an isolated off-site, and undisclosed clandestine location. Loop Diameter = 3.3 ft. The primary is the small inner loop that is 1/5 of the size of the main loop. NEW Design! Small Tuned Loop Radiation Direction Note: This is a long video of four clips, so fast forward when … This article provides details needed to build your own. Using the software at the bottom of this page, I worked out that a 36cm length of wire, will need a capacitance of around 3.6pf, and around a 50% efficiency. Shop with confidence on eBay! This Beta version of the AL-705 is a magnetic loop for the Icom IC-705 offering 10-40 Meter HF QRP transmit and receive operations by Alpha Antenna ® Below is a diagram and some construction details. Conductor: 5/8 in copper tubing. Base Antennas. No one has complained about it, and the antenna has made it possible to enjoy Ham Radio again! Another item on this website discussed antennas that amateurs use to operate from confined locations. Great performance, price, and great people, Best Magnetic Loop ever is the 100 Watt HF Alpha Loop Antenna, Love it, super convenient and effective for portable use. With winter in full force north of Boston I have not even used it outside. About Alpha Antenna The resource is currently listed in dxzone.com in 5 categories. Visit Diamond Antenna on Facebook & Instagram! (Note, to use the… Read more, See all #AlphaAntenna reviews here https://alphaantenna.com/category/community-and-support/reviews/ Being an apartment dweller and on the ground floor my options were limited. Alpha Loop antenna; ProMaster antenna; J-Pole Sr and Jr antennas; S9 antennas; Sky VHF UHF antenna; MOTO FMJ antenna; MIL 2.0 antenna; DX EMCOMM antenna; FMJ antenna; HexTenna antenna; Reviews. Either way, the remote control keeps you from having to go outside to tune the antenna. 100 Watt 10-40M Magnetic Alpha Loop Antenna. If the inductor has a circumference of much less than, say, 1/10 th of a wavelength, then the efficiency of the antenna will suffer. $23.57 shipping. Set it up on… Read more, See all #AlphaAntenna reviews here https://alphaantenna.com/category/community-and-support/reviews/ One of the best things about this antenna is that it’s super easy to set up if you want to go out to the park and set up portable. The QRP magnetic loop antenna, designed specifically for ICOM transceivers by alpha antenna™, is build … AL-705 Magnetic loop antenna 40m-10m by Alpha. Magnetic Loop Antenna for 80-20 mtrs by Frank N4SPP. Covers medium wave AM (.5 to 1.6 MHz) 120, 90, 60, 49, 41, 31, 25, 21, 19, 16 and 13 meter bands. You may want an antenna analyzer, which makes it much easier to tune, or use the SWR meter in your rig. $25.00 shipping. Specialising in new & used Ham (Amateur) Radio, Commercial Two-Way Radio, Marine & Aviation equipments. One that the loop would cover my favorite band, 20 meters, efficiently, and two that the loop was made to be worked with up to 100 watts! We perfected the antenna system as a whole. HIGH POWER 10-40M MAGNETIC ALPHA LOOP ANTENNA This is what I carry in my Truck. Introduction. I would give the nod to the Buddipole.” £432.65. This is a supplement page for "Measuring the Efficiency of a QRP Small Loop Antenna." I first saw the Alpha Loop antenna at a club meeting and was impressed by its’ small size and easy setup. • Our regular antennas work by "recieving" the electric field portion of the radio wave. Trust the ICOM Magnetic Loop Antenna to fill that need. The Alpha Loop is a magnetic loop antenna that is easy to tune, has acceptable bandwidths, and offers coverage for 40, 30, 20, 17, 15, 12, & 10 meter bands. Site C is a contracted warehouse in Poole, U.K. The Alpha Loop offers you a light 10-40 Meter transmit/receive magnetic loop antenna that is quick to deploy. Posted date: January 25, 2018 in: Review No Comments “Hey Oggies, Oggie Rodney Johnson, KAØUSE, loaned me his Alpha Loop antenna and his Buddipole Buddistick. The Alpha Loop is a magnetic loop antenna that is easy to tune, has acceptable bandwidths, and offers coverage for 40, 30, 20, 17, 15, 12, & 10 meter bands. It's not safe to transmit 100 watts with an Alpha Loop, period. I live on the 16 th floor of a condo, and deal with the same HOA Restrictions as a lot of people do. I don’t have time to build, and for my money I want a good quality piece of kit. Using with a KX3 which it does match very well. Portable Alpha Loop (version 6.x) for coverage of 10-80 Meters handles 100 Watts PEP SSB on 10-40 Meters and 20W PEP SSB on 40/60/80 Meters when the included Booster Cable is installed. Choose the units of measurement, English or metric. Magnetic loop antenna for 160 - 15 metres. Headquartered in the heartland of America, S9 Antennas specialize in Yagi, LPDA, Vertical, Magnetic Loop, Dipole, and End Fed antennas, which are produced in our 4500 sq ft facility at Site A. The G4ILO Wonder Loop is an inexpensive, easy to make magnetic loop antenna that covers five HF bands, 40m through 15m. Metal that is within 18 inches of the loop can detune it. The magnetic loop design leads to antenna which is tuned to a very narrow frequency range, giving good selectivity. Needless to say I ordered it immediately. Overview: When we released the 2018 version of the Alpha Loop, we conservatively rated it at 30 watts. $345.00. Pushing the limits of design and manufacturing with cutting edge technology, Chameleon Antenna are known to design, manufacture and distribute products worldwide that are versatile, dependable and built to last! My goal… Read more, See all #AlphaAntenna reviews here https://alphaantenna.com/category/community-and-support/reviews/ The Alpha Loop combines ease of use, solid construction and the magic of RF. If you are a radio amateur, you may be familiar with the magnetic loop antenna. Portable Magnetic Loop Antennas Ham Radio’s Best Kept Secret Eric Norris WD6DBM v2.00. What is a magnetic loop? 2015/09/18 - Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. There's a brand called Alpha Antenna that has great reviews, but they're... Thread by: KT4JX, Feb 11, 2018, 23 replies, in forum: Antennas, Feedlines, Towers & Rotors. I live on the 16th floor of a condo, and deal with the same HOA Restrictions as a lot of people do. I received the loop … Learn more here https://alphaantenna.com/product/hf-base-magnetic-loop-100-watts-alpha-antenna/. $25.00 shipping. It takes about 3 revolutions of the Black Knob on the Portable Alpha Loop antenna to complete tuning from the lowest portion of the band to the highest, or visa versa. The Alpha Loop in its 40-6m form is a magnetic loop antenna consisting of a single (Faraday) loop of LMR-400 low-loss coaxial cable. $25.00 shipping. Normally… Read more, See all #AlphaAntenna reviews here https://alphaantenna.com/category/community-and-support/reviews/ Ordered it on the website after reading reviews and comparing to AlexLoop. Here, you'll find links for high gain loop antennas covering hf. I decided to experiment with Magnetic Loops. $345.00. With band coverage from 40 though 10 meters, this antenna can handle up to 20W SSB and 10W CW and Digital. A 100 Watt Small Loop: Description and Measurements . A 145MHz 2m loop. The AlexLoop Walkham is a Small Magnetic Loop Antenna designed by Alex - PY1AHD after nine years of field tests with more than 800 confirmed QRP DXs. When I first saw this Alpha Antenna RML 20 Meter Loop I was over joyed for two reason. Abstract : in this Post we describe the construction and tuning of a magnetic loop antenna whose purpose is reception in the VLF band, to be coupled with a suitable VLF receiver for monitoring SID events (sudden ionospheric disturbances) caused by solar flares. AlexLoop Walkham Premier Small Portable Magnetic Loop Antennas are lightweight, can be quickly assembled and are easily tuned to any frequency between 6.95 and 30 MHz for QRP operations. May 24, 2019 RHG Articles. Multi band alpha loop antenna being used on 80m with digital using a cs108g+ by connect systems and a tigertronics signallink usb interface NEW Design! There's a brand called Alpha Antenna that has great reviews, but they're... Thread by: KT4JX, Feb 11, 2018, 23 replies, in forum: Antennas, Feedlines, Towers & Rotors. No problems thus far.… Read more, See all #AlphaAntenna reviews here https://alphaantenna.com/category/community-and-support/reviews/ I purchased the 10-40 meter alpha loop with the extra 40-80 meter booster cable from Alpha Antenna. Download the l atest version 1.2 "Overview of the Underestimated Magnetic Loop Antennas" I read a lot of reviews online and decided on the Alpha Coax Loop. $25.00 shipping. Other portable loops just can’t take the power that is often needed to break through or 'make the trip', but instead they try 'compensating' for lack of design or they limit you to sub-par performance with 10 watts CW (25 watts SSB) or less of power handling capabilities. Loop Antennas products from Ham Radio. £8.99 postage. 2B: 3D radiation pattern of a vertically oriented Small Transmitting Loop close to ground (circumference = 0.15 λ, loop center installed 0.04 λ above ground, NEC simulation model adapted by me from Carol Milazzo, KP4MD, ref. This has been during some of the worst band conditions I have ever seen. • Radio waves travel by a wave of electric and magnetic fields at 90 degrees to each other. £303.17 + P&P . Assembling version 4 of the 100 watt 10-40 meter magnetic loop antenna (20 watts with 40-80 meter Booster Cable) from Alpha Antenna ® at www.AlphaAntenna.com

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