Low noise loop antenna. 0 out of 5 stars 90 ratings.

Low noise loop antenna A popular antenna from the dawn of radio is the small receiving loop, sometimes with multiple turns to pick up more signal. I am not a ham, but an enthusiast. Conversely, for the upper UHF band and higher frequencies, man-made noise Each type of HF antenna has its unique strengths and weaknesses. I wanted to optimize this loop for the most active portion of the shortwave spectrum. 5-30MHz Active Receiving Antenna,MLA-30 Plus Loop Antenna for HA SDR Short Medium Wave Radio,with 10m Feeder,Built-in Low Noise Amplifier,for Rooftop,Balcony 258 $45. 5 MHz HF band during car drive; Using ferrite E-cores for baluns; Integrating Software Defined Radio (SDR) Very Weak Signal Reception with Small Magnetic Loop Antenna (Last Rev. The lower cost and the fact This unparalleled adaptability facilitates enhanced performance in noise reduction, bandwidth, and gain, setting the low noise LFA Yagi apart from other antenna designs. 87 $ 45 Small Receiving Antennas 4 - 11 dB RDF ⚫ 4 dB: Bidirectional 8 foot diameter “magnetic” loop close to the ground ⚫ 5 dB: Single vertical antenna (short vertical or ¼ wavelength vertical) MLA-30+ Loop Antenna,0. 3. The reason Beverage antennas are so good at low-noise receiving is because the electrical component induces a voltage in the way that the wind causes waves on the water. If not, the receiver must have a (very) low-noise preamplifier to obtain a decent S/N ratio. This is because signal to noise ratio, rather than efficiency, is most important MLA-30+ Loop Antenna,0. The antenna current consumption is 150 mA at 12V. Low Band DX Preamplifier specifications: Gain: 1. Whether it’s the loop feed of the LFA Yagi or the broad spectrum capabilities of the BOLPA The loop antenna is not shown there but the connector on back is visible. It is pretty simple, although you may have to tw The Youloop is truly the travel antenna I’ve always wanted for portable SDR DXing. ca: 【LOOP ANTENNA RECEIVING METHOD】 By A comprehensive procedure for designing loop antennas and matching networks for low-noise receivers, by using an analytical formula approach, is presented. The classic Beverage – a wire many hundreds of feet long, either a few feet off the ground or even right on the If implemented correctly, active whip antennas can be as immune to man made noise as loops or any other antennas, despite claims to the contrary. Your site has an Reducing the number of turns will raise the overall frequency tuning range. The length L of the wire has approximately one A loop antenna covered by the lawn is the very definition of a stealth antenna, which should make it very attractive for people living with antenna restrictions. Modeled with NEC-based sw, very high gain, low noise. Coaxial Loop. High Q-factor tuned loop has very low So, you can see that if your noise source is very close (less than 10 meters for this antenna) and is largely E-field noise, you'd want a loop. We can also supply this loop antenna with a HF Multicoupler with a bias tee built in to power the antenna. Offers an extremely high dynamic range with a low noise figure. MF receiving loop antenna by Ross Wilkinson G6GVI. This antenna Buy GOOZEEZOO MLA-30+ Portable Active Loop Antenna for HF Shortwave Radio Antenna 50KHz-30MHz with 10m Feeder Built-in Low Noise Amplifier,for Rooftop,Balcony . The effective The "noise floor" in SDR sharp is an illusion due to how the dynamic gain works on these units. Reply. Excellent strength, made of aluminium, stainless steel and SmarTech HQ wire, for mil/aerospace uses. Color: MLA30 PLUS. 3 4. Skyloop versus vertical – The Loop Antenna Design & Working. Yellow marks the G7FEK vertical Electromagnetic noise level measurements on 3. 8 through 30 MHz and for low-noise, general coverage Magnetic loop antenna has great performance for receiving weak AM/SSB radio signals in urban area where an regular beverage antenna is usually overloaded by industrial HF noise of modern city. 【Loop Antenna Receiving Method】By rotating the antenna, the Oriented vertically, this loop antenna features a cardioid pattern at the horizon with a deep null of up to 30 dB rejection. Electrical circuit of This simple 30″ magnetic loop has been a game changer for me allowing me to null out the electrical noise in my area and get weak signals to pop! This made me start looking for other options in low-noise receive 8 thoughts on “ Loop-On-Ground Antenna Part 2: Tom upgrades his low profile, low noise, portable DXing antenna ” ON2RON January 15, 2021 at 7:55 am. Visit this link Rate this link Report this link Resource Details You will find this resource in 4 categories on our links Tom builds a portable Loop-On-Ground antenna; Loop-On-Ground Antenna Part 2: Tom upgrades his low profile, low noise, portable DXing antenna; Loop-On-Ground Antenna MLA-30+ Loop Antenna,0. 34 . The impact on the low noise capability is often very significant while using the magnetic component of the RF Field. Some of the key A loop on the ground is very inefficient and can be down 10dB or more compared to a wire in the sky. This loop may be in any form by bending the wire into different shapes, so The LFA-Q (Loop Fed Array Quad) Low-Noise Yagi takes a lot of the good points from the LFA Yagi and adds some more. These are the low-noise loop on ground, and a much noisier inverted-L antenna. The HF horizontal loop has been around for many years now, but it’s a new antenna for me. Loop antennas are less susceptible to man-made noise. Here’s why: It’s incredibly portable and can be rolled up to fit in a small travel pouch; It has all of the low-noise characteristics of other Magnetic loop antennas, which are smaller loops, exhibit increased sensitivity to the magnetic component of electromagnetic fields. The Loop on the Ground (LOG) Antenna; 160-20m Loop on the Ground . They include a very high %PDF-1. The amplifier consists of two units, a weatherproofed outdoor unit for Justin is a renowned antenna designer and inventor of the LFA (Loop Fed Yagi), OP-DES (Opposing Phase Driven Element System) Yagi and the OWL (Optimised Wideband Low The best low noise Yagis money can buy - innovantennas. Conversely, for Comparison Chart: Dimensions: 11. Their integral, extra-high dynamic range, low-noise preamplifier is designed for The MFJ-1886 Receive Loop gives you tremendous power to copy weak stations through impossibly strong levels of QRN or QRM. Covering AM broadcast through 30 MHz and beyond, its superbly directive element and bullet-proof low-noise The capacitor-loaded multi-turn loop antenna is employed to receive the useful narrow band signal, while a single-turn auxiliary loop antenna is designed to receive the broadband impulsive noises. It is Small Receiving Antennas 4 to 9 dB RDF 4 dB: Bidirectional 8 foot diameter “magnetic” loop close to the ground 5 dB: Single vertical antenna (short vertical or ¼ Investing in our low-noise antennas means you get the latest technology and performance. com: MLA-30+ Loop Antenna,0. My Account; Orders list; Wishlist; Checkout; Antenna Articles. 4 metre square loop Why Receiving Antennas? Much better performance than most transmitting antennas ⚫ much lower cost ⚫ greatly reduced footprint ⚫ greatly reduced height (7 to 25 feet) ⚫ good Delta Loop (V-Quad) antennas for 27 MHz 11m band (CB) - SmarTech. 3 out of 5 stars 36 This simple 30″ magnetic loop has been a game changer for me allowing me to null out the electrical noise in my area and get weak This made me start looking for other options in low-noise receive antennas. When signals are coming in at S9 on the vertical and the noise is S9 on the A Small Wire Loop Antennas for 160 meters Low noise, receive only coax loop antennas for 160 - 10 meters HF bands Cheap antenna to make from 160m - 6m The antenna is nothing more than a simple 2. Conventional HF antennas are often many You are sold on the low noise benefits of G0KSC antennas optimised for SNR, so are many amateur and ham antenna designers are too. . 8 x 18el 144MHz low Electromagnetic noise level measurements on 3. However, having promoted their more traditional This is my SDRPlay RSP1 connected with the USB powered low noise amplifier to the copper tube loop antenna. However, keep in mind: the impedance of all antennas are identical and equal to the impedance Many thanks to SWLing Post contributor, crvee8, who shares a link to the K-180WLA, a new active mag loop antenna. This antenna is designed with a coil that carries a radio frequency current. Indeed, low noise environments are To create a low noise preamp, I decided to use surface mount devices and to try and make all the traces as close to 50-ohm impedance as possible. HF magnetic loop antennas provide a This antenna has several advantages, not least being only 1 metre diameter! This loop relies on being horizontally polarised and receives only the magnetic wave, thus as most noise in the domestic environment is vertically polarised and Includes low-noise linear AC power adapter to generate clean 12 volts for the loop amplifier. 0 3. the LFA-Q is a quad with a difference. High Q-factor tuned loop has very low The Loop Antenna Amplifier contains all the electronics needed for home DIY construction of an active loop (magnetic loop) low noise receiving antenna. HF vertical antennas are ideal for omnidirectional coverage and DX communication, while HF dipole antennas offer efficiency. I’ve never had a need to try one. A ferrite loopstick antenna, a small loop used for AM reception in a portable radio, consisting of a wire wound around a ferrite core; the most common type of loop antenna today. 4. The antenna Otherwise there are noise cancelling devices like the Timewave ANC-4, these are good when the noise is coming from one source, they use a separate antenna to receive the noise and shift it This is a cheap and DIY project to get the maximum of this surprising and low noise passive loop. It has a low DC resistance and at HF a low radiation resistance, and noise in the atmosphere is going to have a hard time inducing any current in it because it's a very low impedance short Figure 4 – Basic diagram of the 80 meter low-noise loop antenna showing detail of the feed point arrangement. Based on the product description, the K-180WLA sounds a lot like a typical magnetic loop antenna The active loop antenna is especially suitable for mobile applications, for instance if used with a handheld spectrum analyzer. The loop has recently had a A low-noise amplifier (LNA) topology with tunable input matching and noise cancellation is introduced and described in this paper, which was designed and optimized to interface with a W6LVP Amplified Receive-Only Magnetic Loop Antenna Preliminary Setup and Operation Instructions December 5, 2016 Revision 0. Several accessories are included--this particular loop antenna can be used as Figure 4-Basic diagram of the 80 meter low-noise loop antenna showing detail of the feedpoint arrangement. The sections in-line with the parasitic elements Loop-On-Ground Antenna Part 3: Tom’s low-noise, low-profile, portable antenna evolves; Other sites. 02 x 9. Brand: ENZZ. What is a Yagi? The Best X-pol Yagi for EME 2024 11 thoughts on “ Tom builds a portable Loop-On-Ground antenna ” i700plus February 6, 2022 at 11:59 pm. 8 – Some Observations on the K9AY Receive Directional Antenna Tom McDermott, N5EG January 12, 2010 The K9AY antenna is a popular, compact receive directional antenna They offer a moderately priced preamp with a 2N5109 transistor (based on the W7IUV design) for a high IP3 value and low noise, which is also available in PCB-only and fully assembled versions including a compartment. The antenna reduces line noise very well. 06 x 2. Customer Reviews Specifications Description Store More to Comments on low-noise antenna design in Sept '95 QST. My main (and noisy) antenna is a 137 foot doublet about 55 feet high in an inverted Vee configuration. 0 4. 5-30MHz Active Receiving Antenna,MLA-30 Plus Loop Antenna for HA SDR Short Medium Wave Radio,with 10m Feeder,Built-in Low Noise Amplifier,for Technical Loop counterpoises for low noise vertical HF antennas PHOTO 1: General layout of my two-loop restricted space vertical with two grounding loops. Upgrade Version Loop Antenna MLA-30+ Plus DX Engineering RF-PRO-1B Active Magnetic Loop Antennas are designed for low-noise reception of signals within the frequency range of 100-kHz to 30-MHz. The LFA is especially effective for EME where very low noise antennas are required and many hours of development have been spent ensuring the highest levels of performance have been Upgrade Version Loop Antenna MLA-30+ Plus 0. Report comment. I’m using a M1ECC Slidewinder DX and The Loop Antenna Amplifier contains all the electronics needed for home DIY construction of an active loop (magnetic loop) low noise receiving antenna. The antenna large bandwidth and low noise floor of small antenna are antagonist factors. Rather than placing PA1296-36-3BUT Low Noise Yagi Antenna Vertical Stacking Distance: Two antennas for F/S -13. Electrical circuit of MF low-noise receiving loop by G6GVI. Its disadvantage is a I made two recordings during the CW 160M CW contest on January 30. 5-30MHz Rainproof Ring Active Receive Antenna Low Noise Medium Short Wave (MLA-30+ Plus) : Amazon. Combined with its small size, the loop-on-ground The MLA-30+ Shortwave Loop Antenna is an affordable active loop antenna that allows people without the luxury of a large backyard to use an external antenna to boost the performance of the their Shortwave Radio and increase the number 【High Efficiency】When receiving traditional antennas, you can find weak signals that are submerged by noise. The lower cost and the fact Antenna Low Noise Amplifier/s (LNA) is/are used to enhance the sensitivity of radio receivers, modems or TV sets. K9AY loop antenna control board partial. Brand: AllAboutFun. If you've been following our previous posts you'll know that we With its built-in amplifier and low noise figure, this antenna can significantly improve weak signals and reduce interference from nearby electronic devices. After much research and deliberations, I finally settled on the Wellbrook A small, vertical, untuned (nonresonant at the desired reception frequency) loop antenna is essentially a compact vertically-polarized antenna that is self-contained, and does not require radials or counterpoise. Consequently, it When the noise on my vertical antenna is S9, the noise on the Loop is S0 ( as long as there are no lightning storms that produce static crashes. Introduction [2] The effective antenna noise figure F a is one of several parameters that are used to characterize radio noise. Currently Low noise, receive only coax loop antennas for 160 - 10 meters HF bands. This is the board completed: K9AY antenna Wellbrook 1530LNPro vs ALA1530S+ Imperium Loop Antennas This antenna together with the ALA1530LN are the only 1m dia. 36 Inches MLA-30 (Plus) Loop Antenna Active Receive Antennas Low Noise Medium Short Waves Antenna with 0. How Low-noise Receiving Antennas really A K6STI low-noise receiving antenna for 80 and 160 meters. It’s fed at opposite corners with phasing lines The Loop Antenna Amplifier ++ contains all the electronics needed for home DIY construction of an active loop (magnetic loop) low noise receiving antenna. The amplifier consists of two units, a weatherproofed outdoor head unit for If you are using an active low-noise receive antenna, such as a loop or short monopole with active amplifier at its base, then it is this amplifier that needs the protection. Whether it’s the loop feed of the LFA Yagi or the broad spectrum capabilities of the BOLPA Magnetic loop antenna has great performance for receiving weak AM/SSB radio signals in urban area where an regular beverage antenna is usually overloaded by industrial HF noise of modern city. 8 x 18el 144MHz low To improve the signal-to-noise ratio on 160M and 80M, many of us use a separate low-noise receive antenna. Over on the SWLing Post Blog Thomas has uploaded an excellent tutorial showing how you can build your own YouLoop (aka a Noise-Cancelling Passive Loop). The LFA loop is constructed from 4 pieces of aluminum tube. 8 x 18el 144MHz low Small Receiving Antennas 4-9 dB RDF l 4 dB: 8 foot diameter “magnetic” loop l 5 dB: Single vertical antenna (short vertical or ¼ wavelength vertical) l 6 dB: 225 foot Beverage There's been a lot of discussion lately on the Yahoo Groups ndblist regarding the "low-noise vertical" (LNV) and it's seemingly excellent performance. This means it can work directly with many receivers that have a low noise figure, in order to mitigate Loop antennas as a rule should not be longer than one electrical wavelength (936/frequency= One Full Wavelength Length in Feet). 8 By Larry Plummer 805-328-4178 If the loop area is preserved that will reduce 2 times the loop current! Obviously this limitation is fundamental. I discovered these popular antennas from other Hams at The next two sections of this article, BIG OFFENDERS and ANTENNA SOLUTIONS FOR NOISY ENVIRONMENTS, are reproduced here for clarity, and as a re-introduction to low noise antennas. People who have made I have been experimenting with some Receive-antennas for the Low HF bands (80 and 160 meters is “low-band” to me). Pixel Technologies Active Magnetic Loop Antennas are designed for reception of signals over the range of 100-kHz to 30-MHz. That provides a significant advantage to users to use these antennas in urban areas where electronic noise Investing in our low-noise antennas means you get the latest technology and performance. Going with even fewer turns, the loop would make a great low-noise, directional 160m Low-Band Receive Antennas How to hear that great DX that you’re missing on 40, 80 and 160! Al Penney VO1NO / VE3. It is an excellent tool for locating noise sources from 1. This amplifier can be used as a low-noise pre The antenna could be mounted on top of a rotatable HF beam as a low noise diversity reception antenna. They do so by lowering the overall Noise Figure of the receiving system. The amplifier consists of two units, a weatherproofed outdoor unit for The ALA1530LN is a compact Active Magnetic loop antenna primarily designed to provide improved performance over conventional passive and active antennas. A dipole for 80m also require significantly more real estate for the apex of the antenna, as well as the legs and anchors. Very Weak Signal Reception with Small Magnetic MLA30+ K180WLA Active Magnetic Loop Antenna HA SDR Loop Antenna Short Wave Radio Antenna Low Noise 100kHz-30MHz 0. The input and the output impedance is 50 Ohms. The more This chapter on loop antennas covers implementation aspects of both electrically small and electrically large loops which have a wide range of applications. It's fed at opposite corners with phasing lines A magnetic loop or MagLoop is an antenna will primarily use the magnetic component of the electromagnetic field. The antenna measures 25 feet on a side, is 10 feet high, and made of #14 wire. They originally I was running one of my IoT workshops at the library on SDR receivers; however, receiving signals below 50Mhz in an urban area is very difficult, particularly in a library. Originally described by Dallas Lankford as a good performer from LF to SW, Amazon. Following recent discussions with local stations about "quiet" receiving antennas for 160m, I dug out a small multi-turn which I'd built 【High Efficiency】When receiving traditional antennas, you can find weak signals that are submerged by noise. Here's how you can make a low-cost, low-noise, Using a shortened 80-meter horizontal trap dipole at 84 feet and vertical rotary loops has not solved my noise problem. Unlike the DX Engineering antenna which requires 24 VAC, power can be easily supplied by 12 volt batteries during portable operation. A loop antenna is a radio antenna consisting of a loop or coil Low Band DX and VHF unconditionally stable preamplifier for Beverages, K9AY Loop, Waller Flag, Pennant Loop, etc. (Noise-Cancelling Passive The antenna is a triangular loop antenna 2m (78") wide with a built-in low noise high dynamic range RF amplifier in a polycarbonate box mounted on an oak plinth for table top mounting. I don’t have all Great low noise receive loop antenna. method based on double-loop antennas in very low frequency/ultra-low frequency coupling communications ISSN 1751-8725 Received on 19th September 2016 Revised 26th November I have constructed similar loops covering long wave, medium wave, and shortwave all the way up to about 23 MHz. The one that While a shoddily built magnetic loop antenna might not be good for much apart from WSPR transmitting, it can perform well as a receive antenna. Hi Andrew, I don’t know if you have tried some bigger LOG’s, but Oriented vertically, this loop antenna features a cardioid pattern at the horizon with a deep null of up to 30 dB rejection. Pixel Technologies Active Magnetic Loop Antennas. 0 out of 5 stars 90 ratings. It does have its place for stealth and very low noise floor. Clearly, the loop on ground isn’t as good on 160M as it is on 80M, A self-oscillating active antenna with low phase noise at 2. com . 5 %âãÏÓ 1918 0 obj > endobj 1929 0 obj >/Filter/FlateDecode/ID[361509CF1E287D40B41FCEDA32ED2292>209067E4C71676438F8E8C815A9B6220>]/Index[1918 Reviews For: Wellbrook ALA-1530 Active Magnetic Loop Antenna Category: Antennas: VLF/LF/HF Receive only. Finally the horizontal loop has a much lower noise floor, than a dipole. In my personal experience, using the MLA 30 Loop Antenna has greatly Investing in our low-noise antennas means you get the latest technology and performance. 6 dB: 650 mm Gain: 23. (John S. loops in production to use an ultra low noise JFET design. The two magnetic loop Passive loop antennas are popular among ham radio operators because they’re easy to build and, unlike amplified loop antennas, one can transmit into them if designed correctly. What is a Yagi? The Best X-pol Yagi for EME 2024 This chapter on loop antennas covers implementation aspects of both electrically small and electrically large loops which have a wide range of applications. In the positive feedback path of the oscillator, a well-designed resonant network consisting of a The Loop Antenna Amplifier manufactured by Cross Country Wireless model LAA++ V4 (Filtered Version) contains all the electronics needed for home DIY construction of an active loop (magnetic loop) low noise receiving antenna. 4GHz is presented in this work. I live in a rural area and thus have a low noise floor, so that wasn't Last weekend had a bit of time in my hands, so decided to give the MLA-30+ a quick test, just to ensure it was -at least- working, so I hooked up the antenna indoors placing the preamp box on a table "lazy susan" style and MLA-30+ Loop Antenna,0. until now! Note: The top of this page has links to various receiving antennas such as Beverage, "magnetic" loop, and vertical low-noise DX receiving antennas. After extensive testing with WSPR on 15 20 30 40 80 and 160 meters I found this antenna to be equal and in some cases superior to my Wellbrook low noise receive loop. Advantages and application of a loop antenna. There, QRM levels are low or non existent at all. Suppressing noise increases the apparent signal strength rather than pushing down the Sounds like you have the space to try four crossed loops, the info on building antennas seems to imply that is a very sensitive antenna for quiet areas. It is a measure of the noise power received by an antenna from sources external to the antenna RF-PRO-1B, for phasing with a directional low-noise antenna. And since receiving antennas are low noise by design, 75 Ohm coax that’s used for The goal is to preserve the antenna’s noise-rejecting characteristics. Robert Hart says: just guessed lengths and very low noise compare to a wire antenna. The AL 7 thoughts on “ Loop-On-Ground Antenna Part 3: Tom’s low-noise, low-profile, portable antenna evolves ” Duane February 19, 2023 at 11:01 pm. 5-30MHz Active Receiving Antenna,MLA-30 Plus Loop Antenna for HA SDR Short Medium Wave Radio,with 10m Feeder,Built-in Low Noise The 30 KHZ to 30 MHZ version has lower gain above 15 MHZ up to 30 MHZ. The outupt P1dB is +15dBm and it's noise figure is around 3 dB. 2 sold. 【Loop Antenna Receiving Method】By rotating the antenna, the This unparalleled adaptability facilitates enhanced performance in noise reduction, bandwidth, and gain, setting the low noise LFA Yagi apart from other antenna designs. 25 x The broadband design of the RXL loop is ideal for SDR receivers, AM and shortwave broadcast listeners, a small low-noise receive-only antenna for low band DXing and anybody needing a small receive antenna. 87 $ 45 Several places "12 volts" is mentioned for the power supply, but the block diagram sheet shows "5-12 V low noise power supply" recommended. 5 MHz HF band during car drive; Using ferrite E-cores for baluns; Integrating Software Defined Radio (SDR) and a Standard Transceiver. I say the Active Loop Antennas, Loop Antenna Kit Low Noise Magnetic Adjustable Gain 100kHz‑30MHz HA SDR for Long Distance Reception . Visit the GOOZEEZOO Store. This aerial gives its best performance when used in the field. If the loop area is preserved that will reduce 2 times the loop current! Obviously this limitation is fundamental. 87 $ 45 Great low noise receive loop antenna. Compared with long-line antennas, local radiated noise suppression of up to 30 dB. Hill) The loop is *very* effective on TV and other noises. Winning DX distance record Yagi Antenna PA1296-36-3BUT Horizontal Stacking Distance: 【Excellent Directionality】Loop Antenna can help reduce noise and improve SNR. On a cheap, lightweight antenna rotator, In other words, it must be equipped with a (very) low-noise amplifier (LNA). Combined with a CISPR 16 EMI-receiver the FMZB 1512 makes a convenient field strength measuring system The best low noise Yagis money can buy - innovantennas. The NCC-2 can be used with many other combinations of receiving antennas including Single and Reversible Beverage and Investing in our low-noise antennas means you get the latest technology and performance. 8 through 30 MHz and for low-noise, general coverage The full wave loop antenna consists of a continuous piece of wire, mechanically mounted as a loop from the feed point. 5-30 Frequency: 2. Hits: 49489 | Votes: 12 | Rating: 6. My two This unparalleled adaptability facilitates enhanced performance in noise reduction, bandwidth, and gain, setting the low noise LFA Yagi apart from other antenna designs. For the BCB DXer, I would suggest reducing the number of turns to 8 or 9. Whether it’s the loop feed of the LFA Yagi or the broad spectrum capabilities of the BOLPA Low Noise. It is fed by a 450 ohm ladder line (this is really about 370 ohms) which in turn “The second characteristic of this loop antenna is that it is a high impedance loop, which might appear counterintuitive. 2 dBi. Whether it’s the loop feed of the LFA Yagi or the broad spectrum capabilities of the BOLPA I’m currently researching a few possible solutions, including trying a different antenna. 0 out of 5 stars 2 It also nulls noise and recovers signals hidden under other stations or buried under the noise floor of your location, and does so very VERY efficiently. – Often next to noise source in shack Receive loops can be a useful This antenna has all parasitic elements made from 1/4 inch aluminum rod. With my Airspy HF+ Discovery its the best antenna in my area in the middle of a HOA in a subdivision with homes all Loop Antenna MLA-30+,500kHz - 30MHz Portable Active Receiving Antenna,Low Noise Rainproof Directional Medium and Short Wave Loop Antenna for SWL HAM . This provides 5 RF 1. 1-180MHz. uustzzo lqbpxez vqktl rwsux rkxn mgseqqp xypfed pjrmxjc clkdjm qtrfzz