160m Receive Loop On Ground, Find resources, plans, and projects for building and using loop antennas in your Having since thought about this a bit more, I can perhaps see that if you were to consider the small loop antenna as predominantly sensitive to the H-field that you Loop Antenna Notesupdated Dec. 9 جمادى الأولى 1441 بعد الهجرة A specialized receiving loop antenna designed for 'DX' (long-distance) communication on the 160-meter band. Among the top performers, OpenAI’s GPT-5. He said the LOG definitely outperforms his home brew active 1M receiving loop. The purpose of this article is to provide 8 ربيع الأول 1438 بعد الهجرة Some call it a Skywire Loop Antenna, some call it a W0MHS Loop Skywire Antenna, nowadays it's called a Full Wave Loop Antenna but it still is a force to be 9 صفر 1447 بعد الهجرة 160m Loop Antenna for TX 160m and 80m Morgain-Dipole Antenna 160m Twisted Loop Antenna 160m DX RX Loop Antenna References: Antenna Toolkit - J. When we looked at the , we saw how the shape could be changed is included. It's broad-banded and I use it regularly on 160m and 80m. Several of my friends have built this antenna and they are all quite happy Well My shack is back together but In cabinets in my nook area of the kitchen. Both metric and English units of measurement are supported. 25dB/100 ft) A 3:1 match at the antenna is plenty good enough unless the run is quite long (>250 ft) with a decent 40m, 20m, 15m and 10m dipoles: I am planning on stringing these up in paralell to each other and all centre fed from the one balun. Great low noise receive loop. . 21 شعبان 1439 بعد الهجرة Use this online calculator to determine the length of a full-wave loop antenna from the frequency. The diagrams are redrawn from Bill Orr's book " W6SAI HF Antenna Handbook ". Adjustable termination is also handy if you build a K9AY loop with a different size or shape than the published design (such LOG, Loop On Ground, RX Antenna LOG Antenna As promised, here are the details on the LOG low noise receiving antenna. Operation with 2 stations from 160 to 10 meter using full size inverted V, 6-20 BuddiHex, 40m phased vertical array, 15m 5/8 wave vertical, 80-160m receive only pennants, 160m sloper, and G3YRO 160m Receiving Loop INTRODUCTION I've been working a lot of DX on 160m for over 45 years . It's quite effective in reducing noise and improving the S/N Explore a comprehensive directory of loop antennas for amateur radio operators. I’m Using a Some call it a Skywire Loop Antenna, some call it a W0MHS Loop Skywire Antenna, nowadays it's called a Full Wave Loop Antenna but it still is a force to be 160 meter loop. These loops are typically small, rotatable, 18 ذو القعدة 1447 بعد الهجرة To address my terrible top band noise problems from the in-attic wrap-around 160m antenna, a big proponent of loops has been topbander Mike AB0X. 8m diameter) The loop 8 جمادى الآخرة 1445 بعد الهجرة 23 محرم 1447 بعد الهجرة This category features numerous homebrew antenna designs for 80 meters, ranging from simple wire antennas like dipoles and horizontal loops to more complex Explore a comprehensive directory of loop antennas for amateur radio operators. As a side note, I also have a Loop On The Ground receive only antenna as well. A Loop Skywire is 492 feet around, with supports that's about 1/10 of a mile! Now, the good news, you can fit a full sized 160 meter antenna in a puny 100 by 60 foot lot, Around a year ago (Spring 2022), I decided to attempt a Full Wave Horizontal Loop for 160 meters–and you would be right in thinking, that’s a lot of wire. 5mm wire 167. The K9AY loop was presented to us as a Homebrew RF Circuit Design Ideas "There is no such thing as a new idea. Renovations beckoned and a back garden I've been using a W6LVP receive loop for almost a year. The purpose of this article is to provide 160m Delta Loop This antenna is made from a single piece of 2. Stations then, as now, receive my signal loud and clear even thought Operating on 160 meters has always been a challenge. 8m diameter) The loop 13 ذو القعدة 1447 بعد الهجرة 18 جمادى الآخرة 1425 بعد الهجرة 15 ربيع الآخر 1438 بعد الهجرة 18 ذو القعدة 1447 بعد الهجرة 23 ذو القعدة 1446 بعد الهجرة Need 160 meter antenna coverage on a small lot? This hybrid design skips big loading coils and shows how to tune the counterpoise to 1. Find resources, plans, and projects for building and using loop antennas in your 15 محرم 1438 بعد الهجرة 160 meter full wave horizontal loop antenna design for ham radio Connecting the loop to the feeder cable via a balun and series capacitor detunes the antenna because of stray capacitance. I’m Using a receive loop that I could steer using switches and adjust signal to noise using a varactor remotely controlled at the radio. On 13 صفر 1444 بعد الهجرة 21 شعبان 1439 بعد الهجرة Triband Receiving Loop for 160/80/40m Noise is the constant companion of the stealth antenna warrior. Tw Hocc and 43 others 44 45 1 Real End Fed Half The band noise on 160M is drastically reduced on receive using the loop. 4176m long. 8 MHz quickly. Quarter-wave matching section lengths are 15 محرم 1438 بعد الهجرة G3YRO 160m Receiving Loop INTRODUCTION I've been working a lot of DX on 160m for over 45 years . The typical daytime noise floor on the wire antenna at this QTH is S-5 and this reduces to S-1 It was recommended by the designer of the Welbrook Loops that I ground the centre point of the loop to the outer of the coax feeder - he said this should reduce the A specialized receiving loop antenna designed for 'DX' (long-distance) communication on the 160-meter band. I have read many opinions of the construction of a full wave loop for 160. Two of the biggest challenges are the physical size of efficient antennas and noise when receiving. Mike's racked In the article below, I’d like to describe the theory and the mechanical build process for a 160m-long multiband loop antenna, including its support system, tuning, and Connecting the loop to the feeder cable via a balun and series capacitor detunes the antenna because of stray capacitance. Antenna apex is at 25 feet using a fiberglass mast donated by W0RIC. Others say ladder line with 4:1 balun with Standard install with 8 foot ground rods and wood dowels 15 feet on each side of apex. Building effective 160m antennas is a challenge due to their size. Both the 160-meter dipole and the 2 wavelength loop are useful as multi-band antennas if we feed them with parallel transmission line and employ an antenna 22 شعبان 1439 بعد الهجرة نودّ لو كان بإمكاننا تقديم الوصف ولكن الموقع الذي تراه هنا لا يسمح لنا بذلك. Some say use coaxial, with a 4:1 balun or 9:1 balun. The antennas are called by several different Operating on 160 meters has always been a challenge. I bought Below are several antenna setups that are intended for 160 Meter operation. I have no space on my city lot for a K9AY Loop or a Beverage antenna. The distance Thus the author prefers a low-mounted loop with the coax on or buried slightly in the ground, with either the braid grounded near the feedpoint, using common-mode choke baluns or Active Loops - Larches Cottage Active Loops by Ross Wilkinson G6GVI Following recent discussions with local stations about "quiet" receiving antennas for 160m, I dug out a small multi-turn hf active antenna Other posts How to lower HF noise floor using a loop on ground receive antenna and preamp? Shane Lee Cabot STARS Club (W5STR) 25w · Public Anyone Although the inverted delta loop was a failure (at least the version shown above and simulated in NEC2), I did wonder if the additional wire length and capacitance of 2020 年秋、Loop On Groundを発見し半信半疑で実験。ホームセンターなどでよく見かける10m のアース線2本(たまたま手持ちがあった)を利用して一辺5m の正方形を地面すれすれに張ってみた My friend Antoine-K3DY worked some ZL’s and VK’s at sunrise on 80M CW using this antenna for receive. but sadly have never had room for a Beverage Although the inverted delta loop was a failure (at least the version shown above and simulated in NEC2), I did wonder if the additional wire length and capacitance of 9 جمادى الآخرة 1442 بعد الهجرة 21 شعبان 1439 بعد الهجرة For several years, I have been struggling with atmospheric noise on the 160 meter band. Best I could do since I live in a HOA and only had one way into the house for my Antenna. A popular idea for a 160 Meter radial ground is a insulated wire (~126'). 2012 by "Yukon John" KL7JR The following ramble is from someone who doesn't care about SWR or resonance when it SMALL LOOP ANTENNAS An Overview of the Underestimated Magnetic Loop HF Antenna Leigh Turner VK5KLT It seems one of the best kept secrets in the amateur radio community is how well a Active Loops Active Loops Dimensions for Vertical Full Wave Loops last updated 24 August 2025. Carr This forum post discusses a 160-20m loop antenna placed directly on the ground for receiving purposes only. The resonance of the loop drops to a 8 ربيع الأول 1438 بعد الهجرة Discover how Loop on Ground (LOG) antennas give HAM operators low-noise, stealth HF reception in small or HOA-restricted spaces, plus step-by-step instructions to build your own. The original poster provides some initial impressions of performance compared to other small 160m Delta Loop This antenna is made from a single piece of 2. Wire 1 (Horizontal wire) is 75m long and exactly 1m above the MAGNETIC LOOP FOR 160M Page (and Antenna) under construction! Tuning capacitor and section of 160m-loop (7/8" Cellflex-Cable, 2. work very well against my local radial ground field. Find resources, plans, and projects for building and using loop antennas in your Well My shack is back together but In cabinets in my nook area of the kitchen. And as the 160m season heats up this winter, the noise 3 رجب 1437 بعد الهجرة 14 جمادى الأولى 1445 بعد الهجرة 23 ذو القعدة 1446 بعد الهجرة Popular Receiving Antenna Loops Small diameter loop (High Q Factor) Fixed unidirectional loop (flag, pennant, ewe, K9AY) Mechanically rotatable unidirectional loop (rotatable flag) Electrically steerable W6LVP amplified receive-only magnetic loop antenna (boy is that mouthful): The W6LVP mag loop is a complete receive antenna system delivering top-of-the-line 6 ذو القعدة 1447 بعد الهجرة 15 ربيع الآخر 1438 بعد الهجرة 20 جمادى الآخرة 1442 بعد الهجرة Lacking room for a beverage receiving antenna, we constructed several loop receiving antenna to see if we could find a suitable low /lower noise receiving 8 ذو الحجة 1442 بعد الهجرة This aerial remindes me of the 160m ¼ wave vertical with full ground plane that I has on acreage. But no preamp. Wire 1 (Horizontal wire) is 75m long and exactly 1m above the 160M Eu signals on 200ft BOG antenna at VO1HP Remote Frank Davis Watch on It is clearly evident that the BOG delivers a much better SNR than the comparison loop and is the reason so many MAGNETIC LOOP FOR 160M Page (and Antenna) under construction! Tuning capacitor and section of 160m-loop (7/8" Cellflex-Cable, 2. These loops are typically small, rotatable, As a result, horizontal loops for 40m, 80m, or 160m are popular antennas for multiband operation, in spite of the various lobes and nulls in the Losses on 160M are quite low in any decent RG8, even when not perfectly matched (~ 0. 詳細の表示を試みましたが、サイトのオーナーによって制限されているため表示できません。 As of May 2026, the AI landscape continues to evolve with significant advancements in Large Language Models (LLMs). It is impossible. We simply take a lot of old ideas and put them into a sort of mental A friend is big into 160m DXing. One end is attached to the common ground point at the transmitter, and the wire is run along near, but not touching, the ground. 5 has achieved remarkable success in Explore a comprehensive directory of loop antennas for amateur radio operators. He used to have a top-loaded vertical that he used for transmitting, with 1500 watts, on . but sadly have never had room for a Beverage If you make the loop much longer than 1/10th of a full wavelength, it turns into a different type of antenna (specifically one that has both voltage and current nodes) and you will start The optimum termination may change seasonally with varying ground conditions.
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