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Shortwave antenna grounding

With the supplied 120cm radiator the antenna has a total length from 170cm (@3. Both seem usable. complete the installation of the “inline” surge protector and provide protection for all connected equipment. 15 to 30 MHz -- especially below 2MHz. End-fed half wave. org (This is an adapted version of part of an article that I wrote for the Dutch amateur radio magazine Electron, February 2015. This is something you should always bear in mind when considering your options for low profile or hidden antennas. Because of the high bandwidth with strict observance of dimensions does not require additional adjustment. In the past, designs that incorporated an amplifier in the antenna were called "antennafiers" so perhaps this is a "loopifier". I could put a random wire up in the attic and run it through a hole in the ceiling/wall, but right now I'd rather avoid that if possible. The Isotron Antenna. The "TRI-DI-POLE" is a shortwave dipole antenna of a unique design. My den/shop is a second story room. Will be installing an outside PAR Inverted-L receive only antenna. This means it has both electric and magnetic field components. Most of today's portable shortwave radios have extremely small antenna jacks. The WiNRADiO G303i: A ground-breaking shortwave receiver that will surely amaze you. It is a #18 gauge stranded copperweld with a tough polyethylene jacket. Make sure the amplifier connectors are face down and leave enough room for drip loops. Just a Bit About Shortwave Portable Receivers After antennas, station grounding is probably the most discussed subject in amateur radio and it is also the one replete with the most misconceptions. dipoles because the antenna is about 1/2-wavelength at the lowest frequency of operation. . Radio Use. How to listen to shortwave and/or amateur bands Discussion in ' General Technical Questions and Answers ' started by KD9ERK , Jul 21, 2016 . Someone with a grounding rod, for example, someone that uses a shortwave radio antenna, might play around by using a 10 gauge wire. or so I thought. Shortwave Antenna restrictions I will be moving into a retirement village as soon as we sell our house. Amateur Radio has been a supreme way of communications for many ways of getting messages from one place to another for decades! Certainly this antenna, the Sangean ANT-60 Short Wave Antenna, was able to deliver. Lightning not The PA0RDT Mini Whip. But to be strictly correct, that antenna is a dipole only at the lowest frequency of use. Groundplane Verticals (they are generally end-fed 1/4 wave radiators) Like every antenna that exists, random or long wires have advantages and  A Horizontal Loop Antenna for Shortwave Listening and Amateur. 95. Simple shortwave antennas often do not perform well and provide disappointing results to the radio listener. The ground acts as a giant 'capacitor', and in effect lowers the antenna's feedpoint  The Par EndFedZ EF-SWL is an end-fed short wave antenna optimally For a better understanding of low noise and grounding, look at the following links:. Since adding the GDTs, I no longer use them; I just leave the antenna plugged into the control box all the time. antenna grounding electrode is used. Since a loop is actually a magnetic antenna it will work rather well despite the aluminum siding and even down on the first floor because the aluminum does not shield the antenna from the magnetic field. Antenna Systems for your Antique Radio. To protect yourself from a direct strike, attach a lightening arrester to the antenna mast. Do I need to ground my antenna and coaxial cable? Can sometimes eliminate the 'grounding block' by utilizing the ground feature on our splitters CM3212 & CM3213. Discuss equipment, frequencies and antenna systems etc. An astute reader asked me about grounding the antenna in the comments of the review. An outdoor antenna is preferable to an indoor antenna. Solid Signal, connecting you to your signal solutions. What's ground? If I connect the shield of my coax (which is grounded outside) to the antenna input of my  11 Feb 2017 The Tecsun Shortwave and AM Outdoor Antenna is based on a acts as a counterpoise for the antenna, therefore no connection to ground is  Shortwave antennas for Amateur Radio. A loop is a balanced antenna which works without reference to ground. The antenna (not radio!) is primarily what determines how far your CB can send/receive - so invest wisely Longer antennas - and those mounted higher up - perform best To learn more, see our comprehensive guide on picking the right CB antenna Handles full legal limit power. There is no direct connection that will have any effect on the antenna, as long as this on at the near end of the coax, and not right at the antenna. The ARAV3 series active vertical antenna system grounds the antenna element when power is turned off. Vertikalantennen, Groundplanes,MTFT  Shortwave signals bounce around the earth, basically 'unattenuated'. FIGURE 3 - RANDOM LENGTH WIRE ANTENNA GND A N T E N N A5050 SERIAL # SOLDER LEAD-IN TO ANTENNA GROUND ROD ANTENNA DISCHARGE UNIT (to protect from lightning) 50 TO 100 ANTENNA INSULATOR INSULATOR * GROUND (if used) See A Note About Grounding on this page. A Much Better But More A ground wire is soldered to the shield only of the coax at the same end that  5 Aug 2015 Now that I've installed an antenna grounding system myself, I want to share how I did it with you in case any of you decide to install your own  Your antenna mount needs to be properly grounded for your antenna to function correctly. B . One is the 1054 4-band Shortwave Regenerative Receiver and the other is the 1056 "any band" CW/SSB Direct Conversion Receiver. Many pieces of ham radio equipment are available as kits. Article 810 of the National Electrical Code,ANSI/NFPA 70, provides information with regard to proper grounding Grounding is important: if the antenna is only grounded in the shack, via the coax cable, much noise can be picked up. Grounding an TV antenna is not just the law, it is good common sense. No part of that antenna came anywhere near the attic's gable ends. Shortwave antenna plans and links is a curation of 55 resources about , Long Loopstick Antenna, Rhombic Antenna for Shortwave Radio Broadcasting, Echelon-Log Beverages, Hula Loop Antenna, Slinky and loaded beverages. The main category is Shortwave antennas that is about Shortwave antenna plans and links. I will bring the cable Pretty much any, practically speaking. On 15 meters, this length is almost exactly 1/4 wavelength. The system, which will be installed WBCQ in the United States, is designed for the transmission of shortwave signals of up to 500 kW, the high-power antenna offers different radiation patterns, an antenna gain of up to 23 dB and uses a technology antenna. . Low frequency ground waves can be received up to 2,000 kilometres (1,200 mi) from the transmitting antenna. (85' if you were to count the hook up wire)Yet the Worldtenna Helical when set up only takes up About 7 foot of space. radio. *PLEASE NOTE* This antenna is intended to be used as a Shortwave Radio Antenna, it is not intended for use as a cb or ham radio transmitting antenna however it can be used for receiving signals on a cb or ham radio. My main computer is at the opposite end of the house from my Wi-Fi transmitter. Used for TV/cable installs. Interestingly enough, shortwave radio extension is not my main use for it now though. Coax run-in to the receiver. Super wide bandwidth means more time operating and less time stuck on a frequency your trap vertical is tuned for. 5GHz. F A Q. This vertical antenna has no lossy traps or coils to burn out. Amateur Radio Station Grounding RCC Mar 2007 - Lane Giard, N7ZXP This article comes from Don Young, N7DY, which was in The Wenatchee Radio Club News letter. The WR-G303i receiver is also the first commercially available receiver where the entire final intermediate frequency stage and an all-mode demodulator are entirely executed in software, running on a personal computer. Sales, Supplies, and Service. Carr One of the universal bits of advice given to amateur radio operators and shortwave listeners is to provide a "good ground" for their transmitters, receivers and antennas. Grounding the coax cable with a coaxial lighting surge protector will protect your equipment from voltage surges created by nearby strikes but not from a direct strike. Good Luck and Happy Bidding On This Awesome Shortwave / AM / Radio Antenna. Why get HF Radio on board? Through radio we have met a great number of friends and become a part of the community. 1 shows the two essential dimensions of a real dipole. Why Antenna Tuners Aren't Necessarily Useful for Shortwave Listening by Daniel A. Boost your favorite stations while rejecting images, intermod, and phantom signals! The MFJ-956 Pre-Selector/Antenna Tuner greatly improves reception from . power- line networking devices are a growing problem for shortwave listeners. The E-H antenna, Super-C antenna, CFA (crossed field antenna), Isotron antenna, and other antennas claim to have special properties making them work like larger antennas. The Par EndFedZ EF-SWL is an end-fed short wave antenna optimally designed for 1-30 MHz reception. com FREE DELIVERY possible on eligible purchases Shortwave - Make a Random Wire Antenna for Shortwave Radio Reception. Better weather and more daylight gives us the chance to get out and play with our skyhooks. The PA0RDT Mini Whip. Stray RF Suppression (or simply RF Grounding) 3. There appears to be no facility for attaching to station ground, unless one of the terminals in the 1/8th inch jack can be attached to a station ground. com Grundig RadioLabs carries select Grundig WorldBand receivers and weather radios. The Grundig Satellit 750 is an exciting portable receiver that brings the world to you! You will get complete coverage of all long wave (100-519 kHz), medium wave and shortwave frequencies as well as FM (stereo to the earphone jack). Silicon Labs offers a broad portfolio of high performance multi-band radio receivers, including FM/AM, Shortwave, Longwave, and Weather Band Receivers. shortwave, February 1995). The Mini-whip is an active antenna for the VLF and shortwave bands, the power supply could be fed through the coax with a BiasTee board. All you need to do is enter the desired resonant (center) frequency in the form below, then click "Calculate". All antennas on a single tower or mast should go to a common ground point. Clemens Match Capacitive grounding may only reradiate these interfering signals somewhere else aboard the boat. jpg. We were able to use the factory default configuration -- connectors #1 (SO-259 shield) and #2 (ground lead of the antenna side of the 9:1 transformer) shorted. , without any antenna at all, one Ground plane reliant antennas without grounded mounts. HELICAL SHORTWAVE ANTENNA for swl, sw, ham, radio, receiver NEW - $24. Patch cords, antenna, tuner, ferrite stick, mounting hardware and AC Adapter are included. ground clamps power service grounding electrode system (nec art 250, part h) electric service equipment ground clamp antenna lead in wire antenna discharge unit (nec section 810-20) grounding conductors (nec section 810-21) example of antenna grounding 1. It was originally designed to operate as a 3/2 wavelength center fed antenna for 14 MHz, but amateurs soon discovered it would offer reasonable performance on many other bands. Each wire is attached to the top of the antenna and anchored to the ground,  Very versatile clamp for installation of anyy shortwave antenna with 3/8" mount ( MP-1, Chameleon Chameleon Ground spike antenna base 'Spike Mount' New. What exactly does grounding a antenna mean? And how do you ground a antenna? I'm a amateur when it comes to antennas so I'd appreciate if someone could explain all this to me. It can run out the window to a tree, or stapled along under the eaves, or even in the attic. Ten-Tec offers two kits in the $30 range that are good beginner projects. Excellent wire antenna for shortwave listeners, consists of 20 or 40m PVC coated copper wire, two insulators, all required hardware plus a magnetic MTFT balun in weatherproof case. The HVU-8 was designed for those suffereing from antenna restrictions in mind. Examples of Grounding Accessories: Installation of an antenna near power lines is dangerous. There are also GDTs in the reflection transformers for lightning protection, as well. They are available from the usual sources. I have been asked innumerable times to 'reproduce' several topics I have discussed on Antenna's, Grounding of Antennas/radios, and in general neat 'tricks' involving 'rolling your own'. Technically a true "longwire" needs to be at least one wavelength long, but Hams commonly call any end-fed wire a longwire or random wire antenna. J-pole. Recently, many amateurs have become concerned about possible damage from EMP, or Electromagnetic Pulse. In fact, short capacitive-ground systems may actually invert the antenna/ground signals, radiating more signals below deck than through the antenna above deck. A high location is better, whether it be the roof, a hill out back, or the top shelf of a bookcase. Counterpoises . Bazooka Antenna Design — from WE6W Beverage— a short beverage design by K3KY Broomstick Special: — compact, easy-to-build shortwave antenna . Currency - All prices are in AUD Currency - All prices are in AUD MiniWhip Active Antenna HF LF VLF mini whip shortwave sdr RX portable receiving. This input would typically be used as the primary AM broadcast and shortwave band antenna input. This text will be posted there in a few minutes, alongwith a couple more questions and clarifications. S. As we discussed on the first page of this article, a length of wire or coax that is 1/4 wavelength long is an impedance inverter. I inspected the wiring of my antenna with the intention of doing a write up on how it was grounded. Thank you! 1. The Par Electronics EF-SWL is an end-fed short wave antenna optimally designed for 1-30 MHz reception. It's a great radio but I'm not entirely sure how to ground it when I use a long wire Most good portable shortwave receivers come with an external antenna. If you are using a wireless amplifier or radio it is best to position it as close to the antenna as possible (without putting too much stress on the connecting cables). I t’s hardly surprising that many boaters are hams and many hams are boaters—both activities attract those interested in expanding their skills and overcoming challenges. This link is listed in our web site directory since Wednesday Dec 2 1998, and till today "Grounding is key to good reception" has been followed for a total of 48440 times. No antenna wires leave you free to listen anywhere, locations near windows giving best reception without the screening effects from any metalwork used in the building. To reduce these voltages the antenna cable should have a grounding block (Radio Shack 15-923) at the point where it enters the house, and that grounding block should be wired to a ground rod driven into the ground as close as possible to the grounding block. You cannot receive a refund if you have placed a ShippingPass-eligible order. Rain forests have been felled to print the endless hallowed textbooks on the subject so we don't feel we should add to the   You can run a receive only radio, scanner, AM/FM, short wave, etc. Shortwave - Make a Random Wire Antenna for Shortwave Radio Reception. There are two areas of your antenna that should be grounded externally to your home. that the readership would possess a wide range of levels of antenna sophistication, from the novice “newbie” to the professional engineer. The MFJ-956 measures a compact 2 x 3 x 4 inches. BADX is an association of shortwave, mediumwave, and longwave DXers, and shortwave radio listeners. The Worldtenna Helical All Band Shortwave Antenna is like having a large 65 foot outdoor antenna. com in 3 categories. 70 ft (SW101) - $22. Therefore if you have a small outdoor antenna like the Mohu Sky 60 I have on my roof, you should be able to tuck it out of view to remain in historic compliance. The reception of shortwave signals can also be affected by electrical storms, mountainous terrain, by tall buildings, the type and cost of your receiver and the kind of antenna it uses. com A Magnetic Loop Antenna for Shortwave Listening (SWL) Now that we’re on the downward slope of sunspot cycle 23 (2004) you may have noticed that some of your favorite broadcast stations don’t come in as strong as they did a few years ago. It is literally, a random long length of wire stretched out from the shortwave receiver antenna connection and attached with some form of an insulator on the opposite end. Using proper call signs, Q signals, and abbreviations, carry on a 10-minute real or simulated amateur radio contact using voice, Morse code, or digital mode. In the mid-90’s when I lived in a Trailer for a short time, I had an outdoor shortwave antenna (for a Radio Shack receiver that sat in a small room) and I ran an internal FM antenna the length of the living room ceiling/wall and down into a corner where my Fisher Receiver sat. but a very good design. I recently had a Slimline antenna and multiswitch installed to go with my HR 20. Despite the advance of modern digital broadcasting, there are certain instances where it could be beneficial to understand how to use your home wiring as a TV or radio antenna. The easiest to put up and simplest to build antenna is the longwire. For additional information on antennas, contact your local library. 5. Neither is more important than the other. I recommend grounding this the same place your radio chassis is grounded. Advise on antenna lightning protection. 6. they do not reach the ground, but go into plastic pipe so they are not 'grounded' but was wondering the best way to try this as an antenna. You generally don't want to make the mast part of your antenna, so grounding your coax at that end only works (properly The instructions for use are very simple. For your safety, Antennas Direct recommends grounding your outdoor antenna and/or mast in accordance with National or Local Electrical Codes. The other connection will provide shortwave reception, but will shift the tuning range of the radio (compared to when both ends of the coil are attached to the antenna) and will allow AM stations to bleed through more than if the two ends of the turn and the antenna are twisted together. Best FM reception I ever got. We get advice, weather information, find old friends and meet new ones through the radio. Electrical Safety 2. The only receivers I own where it seems to make a difference are the Icom R75 and the Ten tec RX320. The right side of the radio has jacks for line level output and line level input, plus a conventional earphone jack. (Licensed amateur radio operators may substitute five QSL cards as evidence of contacts with five amateur radio operators. Those two extra black tip jacks were for grounding the Beverage antenna in advance of a thunderstorm. By rotating the antenna element in a window or outside you can improve the signal strength. One end is at low impedance, so But the antenna may suffer from overloading due to FM, DAB, TV and Mobile Phone transmitters. The graph below shows the measured VSWR of a 6. Lowell, N1LO The system, which will be installed WBCQ in the United States, is designed for the transmission of shortwave signals of up to 500 kW, the high-power antenna offers different radiation patterns, an antenna gain of up to 23 dB and uses a technology characterized by a single-shaft structural design. 5m vertical wire antenna (supported on a 10m fishing pole) fed against 10 buried radials, and terminated with differing values of resistive loads. PA0RDT Mini-whip active receiving antenna finished product, install 3-4 of 18650 battery and ground net , it will work, Note: the 18650 battery not included 3. Fortunately, EMP protection has been studied by Dennis Bodson, W4PWF, and effective mitigation Proper lightning protection is an important aspect of designing a safe amateur radio station. 07. Electroguy 242,914 views. What is a "Good Ground?" Joseph J. Antenna covers All Shortwave Bands. Adjacent to it are two SMA-antenna jacks. Question on using gutters as antenna Well, I live in a ranch style home that has wooden roof with shingles but has an aluminum flashing around the bottom, as well as metal gutters and downspouts. Usually the metal mast or tower acts as the ground, but if it is not planted firmly in the earth (as in it is mounted on top of a roof) you must run a big fat ground wire (at least __guage) down to the earh, and attach to an 8foot antenna grounding rod driven deep into the ground, with just enough sticking up to attach the thick wire to. (This would actually be defeating the mystery circuit and using L3 as just a detector-coupling coil) Hook up a variable capacitor in series with the antenna. Without a solid ground, you're bound to get high SWR levels and . EFHW-8010-1K Multi-Band End Fed Half Wave Antenna. mast from the antenna to the enclosure or WiFi amplifier. I'm a shortwave listener and am looking to move on to a bigger antenna so these are my questions. Fig. 1. An effective ground rod is one driven deep enough to reach into moist soil. More Info. If a small loop antenna's loss is 50 dB (as if the antenna included a 50 dB attenuator) the electrical inefficiency of that antenna will have little influence on the receiving system's signal-to-noise ratio. TV and Radio Tower Grounding. The AOR Whip Antenna Option, a small telescopic antenna will deliver a signal, albeit at a very high impedance and at a low level, to input stages designed to cope with all this. The resource is currently listed in dxzone. For 100 kHz to 30 MHz operation, two antenna connectors are also provided. Grounding connections A and B to see how this affects reception. The antenna design is clear from the figure. , that grounding does not need to be galvanic: a large piece of metal, even if not connected directly to the earth, may have enough capacity to serve as ground. The first  (as published on rec. An intuitive tutorial of antennas and antenna theory. For you shortwave listeners, antennas are also critical. Please contact them for pricing/availability. First you want to decide if you want an Inside Antenna or an Outside antenna. I was just mainly concerned if grounding a wire dipole antenna at the base of the tower was a good idea. We know that grounding your shortwave radio is a difficult and clumsy task. Simple but versatile all-band antenna long wire. Here are plans for building a shortwave radio receiver using 3 transistors, a simple homemade coil, an Air Variable Capacitor and some common electrical parts. UK and EU version 50kHz-30MHz 1m dia. Better is RG-213, RG-8X. The simplest multiband shortwave antenna for shortwave listening is probably the longwire for most newcomers to building antennas. Click the radio for product specifications and information on the models we offer. Grounding is key to good reception by John Doty (as published on rec. ASK BOB. Since we tend to feed the dipole with coaxial cable, we are concerned with the antenna length and resonance. Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! The ground wire is about 11 feet long. This is a picture of the PA0RDT mini whip, an active antenna for the VLF and shortwave bands, together with its power feed unit: The whole antenna is smaller than a ballpoint pen! The UV resistant ABS plastic housing encloses an efficient matching network allowing the antenna to be fed with common 50 ohm coaxial cable. Peanutpaster™ Selling my line of Antennas here on Ebey since Dec-19-2003This is a "Buy It Now Listing" Buy the **Original** and get the **QUALITY* "LISTEN TO THE WORLD"My Worldtenna Helical All Band Shortwave / AM Antenna is a True 65 Feet Of Wire In The Coil + 20 Foot Lead In Wire - You need that much to cover all the Grounding the Electrical System. World's Largest Supplier of Amateur Radio, Ham Radio, and Communication Equipment. 3, the antenna connection consists of either two or three screws (two for unbalanced feedlines, three for balanced feedlines), one of which is for the ground connection. Hello. The radiator wire is custom made for us in 21 mile runs. Offers improved performance on 40 meters. Buy T POWER ( 6. Above is a plaque commemorating the 1940 inauguration of the WBZ transmitter site. With a suitable antenna and filters it is perfectly possible to build an active antenna with very good performance over the frequency range 1. Grove, Bob // Monitoring Times;Sep2012, Vol. Anything HF! The main problem is the antenna ability to pick up passing waves near conductors. the radio to the wire antenna (with the coax shielding connected to the radio ground). AMANDX PRESENTS CHOOSING WIRE FOR AN ANTENNA One of the most asked questions when it comes to antennas is what kind of wire should I use. 5 to 30 Mhz Take note wire is White Kit SW101. Rain Gutter Antenna with SG-230 : 41 Countries in 5 Hours with 100 Watts into a Rain Gutter! by Jack Ciaccia, WMØG. Oh, it’s fine for FM — but shortwave antennas need to be at least fifty feet long to be useful! Oh no! I can’t put up some big, ugly antenna! All it takes is a very fine wire. Currently I am able to run a 60' longwire, but the new place I will be going into restricts the erection of any kind of antennae outside the house and especially on the roof. Overview: you provide a proper ground for your station and antennas. not sell grounding accessories shown here; however you can ˜nd them at your local hardware store. Looking to upgrade your home entertainment system? Solid Signal has everything you need to get the job done! We stock DIRECTV and Dish Network dishes and receivers, HDMI cables, wireless cellphone signal boosters, home security systems, satellite installation tools including multiswitches and cables and other satellite tv products! Grounding of MiniWhip and other active whip antennas Pieter-Tjerk de Boer, PA3FWM pa3fwm@amsat. www. If you are  For any MF/HF radio system to work a good connection to ground or salt water is Keep the antenna grounding system completely separate from the DC or  We are on a shaky ground here. All of my J-Pole and Slim Jim antennas are constructed out of Type-M hard copper tubing. All of these were single conversion tube-based superhet shortwave sets covering 550 KHz to 30 MHz in four bands. By comparing them, you should be able to construct a tuner to your own particular requirements. No longer so you have to try to fit the antenna in your car, as the Break-a-Way antenna pieces are approximately 30 inches long when collapsed. The balun is explained here in more detail. The antenna can be ground mounted or attached to an insulated pole, which will further improve the HF performance (as shown later). If you have multiple towers or masts at your location, then each tower can have it’s own ground system. Now, as I was replacing an existing outdoor antenna, I simply hooked the antenna up to the already grounded coaxial cable coming off the roof. So far received 25 Most all portable shortwave radios will have a telescoping antenna as well as one built inside (mainly for AM radio band reception). Reference: AAVIM Electrical Wiring Created May 2007 Purpose of the Grounding System Fundamental to the safety of those installing, using, and servicing the electrical system Assures the system will work properly while preventing damage to the system With the view to establish a quick and easy multi-band antenna deployment for portable and camping operations a simple long wire antenna with an earth or earth plus counterpoise arrangement with a 9:1 voltage unun including a tuner or simply with a tuner is one possible solution. Most customers are simply unaware that a poor antenna can affect their radio performance substantially and they mistakenly expect that GigaParts - Your trusted source for Amateur Radio, Computers and More! My Account RigExpert AA-55 ZOOM w/Bluetooth Antenna Analyzer. Proper lightning protection is an important aspect of designing a safe amateur radio station. Grounding your tower and antenna system is the first step for lightning protection. However, these new kits utilize modern engineering that leverages the advanced capabilities of today's electronic components. ) *PLEASE NOTE* This antenna is intended to be used as a Shortwave Radio Antenna , it is not intended for use as a cb or ham radio transmitting antenna however it can be used for receiving signals on a cb or ham radio. There will be a Balun and an ICE Arrestor near ground level; both of which I have a Tecsun PL-660 (link is to the manual) has the usual AM/FM radio telescoping internal antenna, and a 1/8th-inch jack for an external shortwave antenna. A number of antenna designs, especially those that are unbalanced with respect to ground (e. The differential amplifier solves matching issues and the varactor tuning gives excellent out-of-band rejection for even cheap receivers. As with any AM Antenna, you will need to take the time to experiment to find the best location. ) acts as the ground plane. The following program will calculate the lengths needed to construct several popular wire antennas. Previously I had everything from my antenna grounded with grounding blocks and a good ground round right near where the blocks were located. First and foremost, grounding is for the safety of your family, home, and ham equipment. Model ALA1530LNPro IMPERIUM. The antenna comes with both a jack (1/8 inch) as well as a clip extension. 3. mobileers. The type of antenna you can use will be limited by your ability to mount it on on your boat: some are limited-space wire antennas, others are whip antennas. The 1/2l dipole radiator (driven element) is 10 m long or so. A two-tower array beams the signal west. There should also be ample opportunities to justify your antenna. partially on the configuration of the receiver antenna input. While researching compact antenna options I discovered the following rule of thumb: An antenna may have two of the attributes small, efficient or broadband (work over a wide frequency range without retuning) but never all three. However factors like the proximity of the ground and other nearby objects also have an impact on the length and it is not easy to determine these beforehand. Easy AM and Shortwave transmitter plans Ham radio guy Mike, Transmitter grounding and antenna info • FM Antennas: Make or buy FM broadcast antennas: Spring time is antenna time. 5mm (1/8″), where you can plug in your own external antenna. > > > Secure a good Grounding Point for your Radio and Antenna. Its gain is about 3 dB greater than a half-wave dipole, the highest gain of any dipole of any similar length. Modern shortwave receivers most often are intolerant of overly strong signals, even strong signals well away from the frequency being tuned. Shortwave Pirate Radio Station Loggings, QSLs, Pirate Radio Broadcasting, Other ground-mounted antennas can work fairly well on the lower HF and MF  The radiation pattern in the elevation plane is strongly influenced by the presence of the ground beneath the antenna as the radiated signal is the sum of the  Results 1 - 48 of 249 Get the best deal for Shortwave Antenna from the largest online Helical Shortwave Antenna outside and ran it down to the ground in his  16 May 2008 t2fd-small. Try the "Tuggle" circuit across L2. All mobile and base transmitting antennas need counter-poise, more commonly called ground plane. Figure I. Vacuum tubes are not typically found in software defined radios, but this interesting mix of old and new technology by Mirko Pavelski uses one in it's front end. Of course, you will need a good HF antenna for any of these options to work, even the CommRadio CR-1; a radio, after all, is only as good as its antenna. PA0RDT Mini-whip active receiving antenna finished product, install 3-4 of 18650 battery and ground net, it will work. How the PA0RDT Mini Whip Works. Shortwave Antenna group, I am going to try (that is, do my best) to move this over to that group. After antennas, station grounding is probably the most discussed subject in amateur radio and it is also the one replete with the most misconceptions. How Active Antennas Work. Great for short wave listening and works as a bent antenna, sloper, inverted External ground bolt with wing nut for external counterpoise or separate ground. A 5/4-wave dipole antenna has a much lower but not purely resistive feedpoint impedance, which requires a matching network to the impedance of the transmission line. Starting gradually: the handheld station. THE MULTIBAND LONG WIRE SHORTWAVE ANTENNA. Pretty bad for isolation, but very inexpensive. My short answer? None. Ampegon says it is about to deliver and install its first rotatable shortwave high-power array antenna on the North American continent. Membership is open to all; NASWA membership is not required. One of the universal bits of advice given to amateur radio operators and shortwave balanced or “Hertzian” antennas work better if the receiver or transmitter is grounded. When installing ground wires use the thickness specified by your manufacture. Ground at the antenna end will be whatever the antenna thinks it is, while ground at the receiver end will be whatever the receiver thinks it is. Another common antenna type is the quarter-wave (λ/4) ground plane (see Figure 3). Type-M, also known as Red Copper is primarily used in the plumbing industry for supplying drinking water in homes and businesses. t. Shortwave wire antenna. When looking at how to ground an antenna it is necessary to look at what is required and then proceed accordingly: Newsgroups: rec. A Modern shortwave receivers, particularly modern portables, tend to be very sensitive. I have a portable shortwave receiver - a Tecsun PL-880, and I'd like to improve the reception. Many things in a house can affect reception, so as a first step, try your radio or antenna in different spots in the house. Some radios (usually the higher priced models) will have an external antenna jack, usually a 3. Over the last 28 years I have used or have seen used every kind of wire used to make an antenna. The Antenna Farm : - VHF & UHF Mobile Radios Radio Accessories VHF & UHF Hand Held Radios Antennas Mobile Antenna Mounts SWR/Power Meters Adapters Coaxial Cable Two Way Accessories Antenna Accessories DC Power Supplies Coax Cable Accessories Amplifiers Connectors Aviation Radios Repeater Systems Towers & Accessories Scanners & Receivers Duplexers Diplexers & Triplexers VHF & UHF Base Stations The RadioBoard Forums. More about SWL receive antennas will be addressed later in these Tips & Tricks. Fortunately, EMP protection has been studied by Dennis Bodson, W4PWF, and effective mitigation "TRI-DI-POLE" Outdoor Shortwave Antenna The "TRI-DI-POLE" is a shortwave dipole antenna of a unique design. This is a general topic for all antenna and grounding and radio accessories discussions. HDTV Antenna Roof Installation with proper grounding - Duration: 19:48. How to Use Your Home Wiring as a TV or Radio Antenna. Grounding an antenna properly makes the antenna safe to use and also enables the best to be made of the performance of the antenna. Installing HF Radio on board without cutting the backstay and without drilling a hole in the hull. Cubical Quad Directional Beam Antenna; Phased Array Antenna; Beverage Antenna also known as the Traveling Wave Antenna with an example by W4RNL ; Antenna Tuners; Antenna Design Books; SWL Antenna Photographs ; ARRL Antenna Handbook ; Lightning Protection and Grounding - Articles for Ham Radio Operators - Single Point Grounding Systems to Equip your boat for amateur radio. Jack ANT A is a 50 Ohm antenna input and covers 1 kHz -2 GHz. This is a length of wire that is run from your receiver to a point as far from the radio as possible. Grunberg -- Kensington, Maryland U. It is quite a cost-effective active antenna for SWL and DXers. If an outside one. This antenna is only suitable for outdoor use, and can only listen to FM radio indoors. The first thing to know is that there are three functions served by grounding in ham shacks: 1. Its purpose is to ensure that the maximum amount of power reaches its destination, either radio transmitter power reaching the antenna, or incoming signals from the radio antenna reaching the receiver. 31 Issue 9, p23 . The antenna and mast should be properly connected (bonded) to at least one 8-foot ground rod that is located as close as possible (preferably within inches) to the mast. The Silicon Labs Si473x, Si474x, Si4707, Si4831/35, and Si4840/44 devices are the industry's first fully integrated, 100% CMOS FM/AM/SW/LW and WB radio receiver ICs. ) This page details several T-match tuners. Someone will probably have to search for clips with boots for insulating the alligator clips. All you would need to do is find a comparable sized modern device allowed in the community. I have a UHF/VHF antenna in my attic. This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. 14. The answer is as varied as the people who put them up. In honor of Spring, here is all the information I have handy on transmitting antennas and transmitter ground systems for the medium wave AM band. Unit does not have an external antenna connection. Why build antennas out of copper and not aluminum or stainless steel. I had a smallish shortwave antenna in my attic, a dipole, set for the shorter end of the MW band. The wire antenna is connected to a 9:1 transformer that is grounded to a 2,5 meter (8 feet) long copper tube, driven into the ground. I appreciate it, kj4iyl PAR EndFedz are now being manufactured exclusively by LNR Precision. shortwave, February 1995) What's ground? to the antenna input of my R8, I hear lots of In this video I will show you DIY How To Ground A TV Antenna for lightning strikes. If you experience any decrease in antenna performance, broken parts, factory I'm about finished restoring a Knight Kit Star Roamer and will need an antenna put up. This website is designed to present a comprehensive overview of antennas, from design, to measurement and theory. The system, which will be installed WBCQ in the United States, is designed for the transmission of shortwave signals of up to 500 kW, the high-power antenna offers different radiation patterns, an antenna gain of up to 23 dB and uses a technology characterized by a single-shaft structural design. Fully unroll the supplied shortwave antenna. ) Figure I. Your little portable shortwave radio has a useless antenna. Also Great For Limited Spaces. The most important is the physical size of the antenna used, then its radiation pattern. The antenna wire can be of any type that you can easily buy. $3399. Let's imagine a HF antenna resonant on the 20-meters band. Active 3-30 MHz Hula-Loop Antenna for Shortwave. The way it works is that the analogue radio circuit receives a small range of spectrum, and then the tube acts as a mixer, converting that Heathkit SW-717 Shortwave receiver. Tips for best shortwave reception Personally, I use a slightly different antenna system for shortwave listening, where the antenna is placed much further away from the house. There are also slide switches for DX/Local antenna, External/Internal antenna. Here is the question where does the ground go on the antenna. I've tried some experiments with grounding. Due to the comfortable adjustment of the antenna you can tune without leaving yopur car. The amplifier will boost the signal from the TV antenna and compensate for the signal reduction introduced by the signal splitter. In mobile installations with standard antenna systems, the vehicle metal (body, frame, etc. In Figs. How Can Someone Make a Homemade AM Radio Antenna? Radio users can make their own homemade AM radio antennae by winding a coil out of single-strand wire, grounding the wire and putting a portable radio near the coil. monitoringtimes. Its really just wire and cable. My installers did not use the grounding blocks and instead ran a ground wire from the multi-switch. Please see the list of receivers below for product overviews. Shortwave - Ham Reception antenna . Figure 3 shows two popular antenna connection schemes found on the rear pa nels of shortwave receivers. In the past week, I have had no less than 3 email inquiries from readers regarding which amplified antenna to purchase for their portable shortwave radio. Yea I already have #4 ground wire from tower with ground rods (10'x3/4" )all bonded with electrical service panel as a spg. Currency - All prices are in AUD Currency - All prices are in AUD NEW Ultra low noise High Gain Active Loop Antenna. But can simple wir Minimal Antennas and Grounds by Daniel A. So will most likely clip lead or wrap the base of the telescoping antenna. Portable Antennas,Enhance your coverage using Motorola Solutions antennas, which include options such as GPS capability, multiple mounting types, directional and omnidirectional capabilities and more. Cheapest would be RG-6 ‘ 75 ohm. The antenna has omnidirectional gain characteristics and the performance is commensurate with a dipole, but has better man-made noise performance, and extremely wide bandwidth, (typically, 5:1. Plus the Satellit 750 also receives the VHF aeronautical band (117-137 MHz). The antenna will produce the appropriate voltage difference at the input side, and the receiver will see that voltage difference uncontaminated by external fields, according to the properties given above. Plug it into the special shortwave antenna socket in the back of the radio. The radiator is 45 feet of genuine #14 black polyethylene coated Flex-Weave wire. Also, there are many SWL receive antenna articles in older editions of The World radio & TV Handbook, especially the 1995 WRTH Buyers Guide. Verticals and baluns . Radio Explorer--By Dmitry Nefedov -- Graphic viewer for shortwave radio broadcasting schedules. Works great. g. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. In this case, the Customer Care team will remove your account from auto-renewal to ensure you are not charged for an additional year and you can continue to use the subscription until the end of your subscription term. Google around for a cheap G5RV, its not only a great ham antenna but a VERY good shortwave listening antenna as well. As the device provides gain up to and beyond 4GHz. The article presents questions and answers related to radio communication, including making a receiving antenna, using two shortwave receivers and grounding for an outdoor wire antenna. You'll find that there are about 40 channels available at your location. Hook up a variable capacitor in parallel across L1 to tune the antenna. With the purchase of the LAVA Inline Surge Protector, your antenna warranty will be upgraded to 5 years! This warranty will insure your antenna system 100%. Forum discussion: I read a post here on making sure to use a grounding rod and to also bound it to the other rod. BUILD AN HF ANTENNA TUNER MAKE A HOMEBREW HF-VHF ANTENNA TUNER (It really isn't all that difficult. 5MHz) to 185cm (@30MHz). BNC is a larger and somewhat more common antenna connector, especially for scanners. The Basics of Shortwave Radio Although English is not the most widely spoken language in the world, it is currently an important "second language" in many countries because of the need to communicate with English speaking travelers and investors. shortwave Subject: Grounding is key to good reception, was: Experience w/NRD-535 In your recent post you advised that coax should be grounded at two sites, first at the antenna and then just before entering the house. The title says it all. I would remove the wire from your radio to the water pipe IF you follow the following advice. Earthing or grounding an antenna system can be crucial to its operation. 'ANTENNA 1' is a 50 Ohm, SO-239 coaxial input requiring a mating PL-259 connector. The article offers instructions for building an all-mode multiband shortwave receiver. A short-wave antenna should typically be symmetrical in shape with two For the grounding plates it is important to choose a size sufficient for SSB radio. MiniWhip Active Antenna HF LF VLF mini whip shortwave sdr RX portable receiving 2. What does it mean to ground a antenna? Apr 8, 2019- Explore glaz51p's board "Antenna grounding" on Pinterest. 1. Poles that once supported the WBOS shortwave antenna are still standing on the site although the shortwave station is long-gone. Lightning Protection. UserManuals. The lower end of the Central cable conductor connected to the grounding network, and its upper end soldered to the shield of the cable. We are a group of Massachusetts and New Hampshire SWLs and DXers who meet informally once a month to talk about stations we have heard, shortwave listening, and DXing in general. How to ground antenna. Page 2 of 3 < Prev 1 2 3 Next > Connect the UNK test cable ground to the antenna grounding system (ground radials) or the counterpoise in the case of a balanced antenna (dipole). Very low frequency waves below 30 kHz can be used to communicate at transcontinental distances, and can penetrate saltwater to depths of hundreds of feet, and is used by the military to communicate with submerged submarines. 6 ft Long Cable Compatible with Eton Grundig Eton Field NGWFBTB Radio S450DLX S-450DLX S-450-DLX AM, FM, Shortwave Ac Dc Adapter Switching Power Supply Cord Charger Spare: AC Adapters - Amazon. And it does sound like evryone thinks so. Anticipating it may need to be installed hidden from view along the side of a building or home, rather than in the preferable location in free space, the ground radial system uses two rotating rings. Add coax feedline -- get on the air! The G5RV antenna is a multi-band center-fed dipole antenna capable of 1500 Watts. If you get serious about shortwave listening, you'll probably want to try grounding the scanner for somewhat better reception. Install the HDA 100 within a 50 foot coax cable run from the TV antenna on the antenna side of the signal splitter. Find out how to ground an antenna system. You are eligible for a full refund if no ShippingPass-eligible orders have been placed. Bought the PAR EF-SWL antenna, and just put it up outside as an Inverted-L, and away from the house by about 75 feet or so. Equipping a boat for ham radio need not involve major effort or expenditure. I want to put up a long wire antenna out my back garden, I'm able to stretch out a 50ft length of 12-14 awg wire. Antenna grounding advice A place to discuss the HF and Shortwave listening side of the radio hobby. Make sure the antenna will resonate It doesn't take very much wire to pick up an adequate signal for anything but the crudest shortwave receiver. There is a built in telescopic antenna for FM and shortwave plus a built in ferrite bar antenna for medium wave [AM]. The "TRI-DI-POLE" Outdoor Shortwave Antenna IT'S UNIQUE! IT'S EFFECTIVE! AND IT'S FOR SHORT-WAVE LISTENING! The "TRI-DI-POLE" is a shortwave dipole antenna of a unique design. The gauge of wire is not important and any gauge from 14 to as thin as 24 can be used. Some places sell more expensive clips with boots. If when you reconnect an appropriate antenna to your transceiver you do not hear a significant increase in noise on any of the bands below about 20 MHz, you may have a receiver problem. All posts from this point on, at least on this particular thread, will be made there. Its also pretty cheap I use mine here for Ham radio as well as just tuning around the bands. Amatuer Ham Radio Antennas . MFJs exclusive IntelliTuner, Adaptive Search and InstantRecall algorithms The calculations from these formulas give a good starting point for determining he length of a dipole antenna. Then again, you may have an antenna problem or may have encountered one of those rare times when there is very low radio noise as may occur To determine the adequacy of the grounding system can care SWR of the antenna after the rain - if the grounding system is effective, the change will be minor. SHORTWAVE, SWL, AM, OC, Basic longwire antenna Kit. The SDRPlay RSPduo has three antenna connections which can be selected via the software: High impedance wire antennas for 1 kHz – 30MHz can be connected to the green “High Z” connector. The Spade Fork connector will allow you to use the ground wire with most radios out there (90+%) - but you can also cut it off and use the bare wire if needed. B. That way this is nothing but a pass-through connector with an internal spark gap. The difference between a mediocre antenna system and a great antenna system isn't the antenna itself: it's the way you feed signals from the antenna to the receiver. The coax plugs into the back of the radio. It has tuner bypass/ground receiver positions. Grounding Ten Tec 1054 Shortwave Radio Kit Introduction. pipe, and also has grounding via the center pin on the ac power cord. If you'll pardon my typing AND spelling (lack of ) skills, I'll try to put as much into this "101" as I have time for. The equivalent long wire is twice as long. Most of today's   A short-wave radio antenna is supported by two guy wires, 165 ft and 180 ft long. 5MHz to 1. Then a BNC to "binding post" adaptor makes it easy to try different wire antennas. Kurzwellenantennen fuer Amateurfunk. be sure to make provisions for unhooking and grounding the Antenna Theory 101 — antenna tutorial from KD4SAI Antennas from K5DKZ Antennex — online antenna magazine Attic Antenna — trap dipole design for your attic . A more practical antenna design is a bit longer. Good Luck and Happy offerdingOn This Awesome Shortwave / AM/Radio Antenna. The SW-717 is Heathkit's solid state successor to a series of receiver kits that started with the AR-2 followed by the AR-3 and then the GR-91 and the GR-64. For example, at 1 MHz the man-made noise might be 55 dB above the thermal noise floor. Run the antenna wire as high off the floor as possible, back and forth across a window. With MFJ 8100K World Band Receiver Kits you'll build and enjoy a versatile shortwave receiver that employs a circuit concept that is as classic as the early 1920s. Well shortwave stinks. A good ground system is an essential part of a good ham station for various reasons. tech offer 4 Drake manuals and user’s guides for free. First, a radio signal is an electro-magnetic wave. It’s possible to download the document as PDF or print. I recently bought a Grundig Satellit 800 on eBay. With this balun the antenna can be fed with any length of coax cable. Got my new Grundig G8 radio. Antenna feeder considerations. The success of the three previous editions of Practical Antenna Handbook has been most gratifying. Wire Antenna Calculator. There are several aspects to grounding an antenna. Up to now, have had a simple random length wire running around the four sides of my attic. C . Would you like to be able to hear more stations on both AM and Short Wave with your old radio? If so there are several possibilities. O. Was looking at the single slinky antenna and the broomstick. FIGURE 3. Dummies guide to aircraft antennas Probably the single biggest issue that we encounter with the installation of our XCOM radios by customers in the field is poor antenna performance. Finally, it is best to develop an entirely separate grounding system for lightning IK-STIC-- multi-band vertical dipole antenna used for quick set-up and quick band change -- From W2IK IK-STIC 2 vertical, all band, antenna, 25 feet tall, under 5 pounds! With a tuner covers the amateur radio HF bands from 40 - 10 Meters. > > Shortwave Antenna group, I am going to try (that is, do my best) to move Find many great new & used options and get the best deals for MiniWhip Active Antenna HF LF VLF mini whip shortwave sdr RX portable receiving at the best online prices at eBay! SHORTWAVE PLUS 50 MHz amplifier on with no antenna or dummy load connected! grounding, you may risk damaging your equipment, having problems with TVI/BCI or 1. as a Yagi or other transmitting antenna is not recommended for this reason. I decided to try the ARRL International CW DX Contest from my new, super stealthy HF radio setup let me explain. The MFJ-993B IntelliTuner lets you tune any antenna automatically balanced or unbalanced -- ultra fast. For now SWL's would be very well advised to read this White Paper. To assure highest protection for the active antenna, a DXE-TVSU-1A Time Variable Sequencer Unit should be used to ensure the correct transmit-to-receive switching. For a simple 'external' Shortwave Antenna to use with the Sangean ATS-505 'portable' Shortwave Radio The Break-a-Way Slim Jim antenna has a screw connector in the middle for easy transport and storage- yet it still retains all the performance benefits of the single piece Slim Jim antenna. 2. The antenna is the reactive unit, the ground plane is the reflective unit. Be sure that you are familiar with all of the grounding and other TV antenna regulations in your area. Basically, this leaves the connection to the antenna ungrounded and the user should ground the receiver in the shack. The mast or tower that the antenna sits on and then the transmission or coax cable attached to the antenna must be fed through a grounding block. In my opinion, there’s one fatal flaw with amplified antennas: they amplify noise just as much as they do the signal The built-in 'WHIP' antenna is available for use on all bands. w. Cancelling fields, or making small spatial antennas seem large, has been a common thread running through magical antenna systems. All hardware is stainless and the SO-239 connector is silver/teflon. Box 522 Clinton, Michigan 49236 USA. How to Build Several Easy Antennas for Amateur Radio. Aluminium Loop The ALA1530LNP is the second loop in the IMPERIUM range of the world famous Wellbrook Active Loop ALA1530 long, medium and shortwave antenna. BTW. The Figure 1 shows the most basic form of radio antenna ground. This is especially apparent on weaker DX stations. It’s a comprehensive automatic antenna tuning center complete with SWR/Wattmeter, antenna switch for two antennas and 4:1 current balun for balanced lines. If the antenna includes a feedline, connect the test equipment to the feedline at the feedpoint (the near end) where the transmitter would normally be connected. Single band antenna when fed by coax Works good for multi-bands when fed by open wire line and using HF Antennas Especially stealth models for those in an HOA Wellbrook Communications are the only UK company that supplies a complete range of Long wave loops, Medium wave (AM) loops and Shortwave (HF) receiving loop antennas for radio amateurs and listener hobbyists. Use the string clip, attached to the antenna’s back plastic container, to hang the end of the antenna to a high point. Terminated Tilted Folded Dipole Shortwave Antenna But in all cases, as you will probably be connected to the main, that you will maybe install some domestic gears, a telephone, additional lights, and why not a TV in your shack, the lightning protection will have to protect all these equipements too and not only your transceiver and your antenna system. That assumption proved to be correct as I have received letters from a wide variety of people. Here is my setup. The antenna element has directional characteristics. Phase 1 - the easiest remote antenna Not recommended, but I know that because it's so easy you'll go ahead and do this anyway! This is to hang your antenna wire up outside as long and as high as you can, then feed one end of it with coax, connecting the wire JUST to the inner wire of the coax. But can simple wir The 40 Meter Isotron Antenna. Try just wrapping part of the coil. Worked, and was able to receive many stations, but was always disappointing. Features: 1. Richtantennen, Monoband-beams. metal roof as antenna? >>I'm going to be using a shortwave receiver (a SONY 2010) in a house Grounding the far end of the antenna will therefore give a pretty Secure a good Grounding Point for your Radio and Antenna. Voltage probe/active loop antennas for shortwave. Related Pages: Groundplane Verticals (they are generally end-fed 1/4 wave radiators). 10-80m MOBILE HF MULTIBAND ANTENNA PROJECT - From Mark D. Outdoor Antenna Grounding - If an outside antenna or cable system is connected to the product, be sure the anten-na or cable system is grounded so as to provide some pro-tection against voltage surges and built-up static charges. Also many areas have local antenna-grounding codes. The 27 foot 10-40 meter Multi-Band Vertical antenna is a freestanding vertical element. The feeder is an important part of any radio antenna. See more ideas about Ham radio antenna, Ham radio and Ham. The Mini-Whip design has a frequency range of 10 kHz – 30 MHz. A I wrote the following explanation about why not to assume that an antenna tuner is necessary, or even useful for good reception. Scheme coaxial vertical antenna (Rv - amount of resistance losses) It is formed by a vertically disposed coaxial cable with arbitrary impedance. and best is LMR-400, usually used for transmit at higher frequencies. P. Have a look at the manual Drake SW2 Shortwave Receiver Owners Manual online for free. Wow, what an See the Shortwave Radio Kit below! MTM Scientific, Inc. Because the antenna is usually the highest point on the house, it is highly susceptible to lightning strikes. Displays data in a tree-like expanding table, on a 24-hour Gantt chart, and on a world map with greyline and frequency coloring. The Diamond SD-330 is a motor driven mobile antenna for shortwave, from 3 to 30MHz (Screwdriver Antenna). Terminated Tilted Folded Dipole Shortwave Antenna The antenna assembly is elevated 6 feet above the ground. shortwave antenna grounding

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