The 40 Meter Isotron Antenna. See here and April 2004 QST, page 37, for more information. This antenna gives us a 1. Note the radiation pattern of the antenna in the plot below the VSWR graph. Try more that one antenna. This loop measures 33 inches (84cm) on a side and has 8 turns of wire connected to a 365 pf variable capacitor. If you try to use a ground plane antenna on a Jeep, a good portion of the radio signal is going to be transmitted down into the Earth. The AM antenna on a portable radio is usually a ferrite rod with a thin wire wound around it. You'll learn effective grounding and bonding techniques for home stations, including condos and apartments, portable and temporary. Connect the ground of the signal generator to the receiver chassis via another similar capacitor. Grounding and Bonding for the Radio Amateur shows you how to make sure your station follows current standards for lightning protection and communication systems, not to mention the National Electrical Code. Basic troubleshooting procedures require a process of elimination in order to get to the culprit. I'm currently in a 2010 ProStar, which I have been told does not have the best grounding. Scanner Master has the latest models at great prices, same day shipping, nation's largest scanner dealer. No-ground-plane CB antennas can also be found at retailers that carry boating and RV supplies. They come in 3-5’ sections and telescope into each other. Have you ever fantasized about finding a "new in the box" vintage radio? Think of it—a brand-new set, with zero miles on the odometer and peerless performance! Finding a factory-fresh vintage radio is pretty far-fetched, unfortunately, but there's a practical way to get much the same result. The MFJ-1890 is a lightweight aluminum antenna designed to operate in the 10 meter band and we had hoped that with a little messing around we could get it to tune to the 11 meter cb band. Hidden antenna is the latest craze that bridges old technology with modern capabilities. 1 we have therefore shown the other side of the instruments connected to ground plate 19. My radio, tuner, power supply are all connected to a ground hub which is then connected to the earth ground. Experimental Determination of Ground System Performance for HF Verticals Part 4 How Many Radials Does My Vertical Really Need? 1Notes appear on page 42. The cookie settings on this website are adjusted to allow all cookies so that you have the very best experience. The CTR6-160 Auto Controller will work with any screwdriver antenna with or without counter switch/magnet switch. This is required only for certain types of antennas-- ones which require current flow to ground to complete the antenna circuit. However, it is by no means a replacement for an adequate ground plane under the antenna! Incidentally, the term ground plane is a bit of a misnomer (see next section). 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. The antenna is easily identified; if you are not sure which wire is which, the antenna will be one that makes the radio (when turned on and the volume turned up) come alive when you come in contact with the bare end with your fingers. 506 results for vintage radio antenna Save vintage radio antenna to get e-mail alerts and updates on your eBay Feed. The row of 4 small arrow knobs control the various filaments. One wire of the feedline connects to the base of the antenna, and the other connects to ground. An RF ground system forms an integral part of the operation of a monopole antenna. Connect your scanner or handheld 2-way radio to an external antenna with this cable. wire into the antenna jack. Adding a ground wire to the radio will usually improve the signals and reduce some of the noise your hearing. Now reach down and unplug the radio antenna from the radio. All the parts you need to modify, repair, or build guitars, guitar amplifiers, antique radios and more. Its counterpoise is the lower half of the antenna (ground). Antiques, Antique Radio, Antique Radio and parts, Weston Antique, General Radio, Twist Lock, Emerson JFD 3 way TV antenna switch. So the actual height of the antenna will be the height above the roof. From time to time I receive questions about what antennas to use for vintage radios. It also works well with our Cornell WW-II Foxhole Radio and our Pickard Crystal Radio. TRAM model 1499 Mini Base Station CB/Ham Radio Antenna, 3ft, no ground NEW. The radiation pattern in the vertical plane perpendicular to a horizontal dipole over perfectly conducting ground is given by the equation where a is the angle to the horizon and h is the height above ground in electrical degrees. Base wide band antenna, power rating - 2000 watts, 2mHz Bandwidth (under 2:1 SWR), Covers far above and below the traditional CB channels, 3dB gain @ Resonance SWR 1. The Wilson 5000 Mag mount antenna with it's 62. A No Ground Plane antenna installed on a vehicle or boat constructed of metal will not operate accurately. 5 inch whip is a powerful base loaded antenna and is made of high impact thermoplastic for durability. By design, the quarter wave sloper is known to be an excellent DX and long haul antenna. RadioWavz MBITR antenna coax extension cable can be extremely useful for communicators and JTAC’s that require optimum communications on air to ground and ground to ground nets with the same radio. Dipole Antenna Calculator. A ground plane antenna (which all land mobile CB antennas are), needs to have 2 things, an adequate radiating element (radiator), and an adequate counterpoise or ground plane (GP), usually the body. The radiation pattern in the vertical plane perpendicular to a horizontal dipole over perfectly conducting ground is given by the equation where a is the angle to the horizon and h is the height above ground in electrical degrees. For the 2-gang, antenna-tuning capacitor, I came up with a 1928-vintage Camfield made in Chicago. Newsgroups: rec. Its primary uses are in broadcast, ship-to-shore, and ground-to-air communications. Antenna Grounding Information (Outdoors) Why It's Important: To reduce the chances of your antenna or mast being struck by lightning, follow the National or Local Electrical Codes to properly ground these items during installation. Sound Advice: The best radio antenna might not even be a radio antenna. BULL! First, an 857 can't be "plugged into the wall. The G5RV antenna is a type of dipole antenna, and it can be acquired for a very small cost from many ham radio retailers. Boundary condition (zero E-field at ground) distorts the free-space radiation pattern. Good AM/FM antenna by Big Steve | December 7, 2012 4:15 Radio shack has one on the rack in any store, even some old style rabbit ears would give good reception. It has a SWR bridge built in and checks the swr as it tunes to resonance. Antique? Classic? Rat Rod? It does not make any difference to me. Although this design has been around for a long time, it is only gaining popularity now due to the recent improvement in high power antenna tuners. It may load up nicely, but so does a dummy load. Then use the program to vary ground loss resistance till measured and computed feedpoint resistances are equal. The radiating element is a quarter wave (λ/4) and the radials are 12% longer. Antique Electronic Supply tubesandmore. 160-Meter Dipole Height N0GW - Gary Wescom - 1 Nov 2006 During the current lull in solar activity, operation on the 160 meter ham band has become more popular. The antenna box itself "must see daylight. The RTL-SDR is an ultra cheap software defined radio based on DVB-T TV tuners with RTL2832U chips. 1 we have therefore shown the other side of the instruments connected to ground plate 19. For the 2-gang, antenna-tuning capacitor, I came up with a 1928-vintage Camfield made in Chicago. There is the usual push-type, on-off switch, 2 speaker jacks, terminals for antenna and ground, and a jack for a loop antenna. 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. Vintage Car Radio Antenna 3 section WARD NEW stain. 2 meter and 70 cm antennas are necessarily "short" and therefore won't pick up as much energy from a nearby strike as would, say, an 80 meter dipole. Antennas of the type commonly used with crystal sets are most effective when their length is close to a multiple of a quarter-wavelength of. What is the best way to ground my Clearstream4 antenna? Should I use coax cable with an integrated separate ground wire, or run. used to match the radio to the antenna back then. VINTAGE RADIO ANTENNA TIPS A GUIDE TO YOUR "SKYHOOK" Many people want to know a bit more about what is considered an appropriate outdoor and/or indoor antenna for their set than the brief notes in the other info sheet, "Healthy Radio Tips", so this little offering might clear things up a bit. Sold by Gifts4Less. It is built into the coaxial cable. A ground plane has some interesting ‘angle of attack’ characteristics, especially on bands such as 10 meters. My antenna appears to go up and down, and DOES work, but goes into "search" mode a lot and the radio seems confused. Army MARS netcom. Greatly boost reception! Simply tune the antenna and place the radio nearby for signal transfer to the radio's built-in barcore antenna element. In the past, I never seriously considered installing an extensive array of ground wires for my HF system due to the daunting task of making trenches to bury the wires. This all-aluminum gutter is fed with coax with an unterminated shield (at this end, shield connected to radio ground at the other) to reduce nearby computer hash from inside the house. The problem then surfaces on how to have antennas that can accommodate radio signals that far exceed the ones of the past but does not take away from that classic appearance? The answer is simple; you hide it. by Brian, W9HLQ. wire into the antenna jack. Since 1968, West Marine has grown to over 250 local stores, with knowledgeable Associates happy to assist. Two-way Communications & Vehicle Mounting Solutions. The amplifier will provide room-filling volume from an ordinary crystal radio outfitted with a long-wire antenna and good ground. The antenna element (attached close to the top of the pole) is a 72 inch telescoping whip. Please visit our many pages of equipment, radio personalities and history. However, placing the Ferrite Antenna near the center of the loop does enhance its performance and the Lazy Susan was something I had been using long ago to quickly re-orient the radio azmuth to accommodate the signal source. It requires a direct ground. Knowing how to ground or earth an antenna system can be a key factor in the operation of some antennas. I have an 8' ground rod on all three legs of my Rohn 25 tower & it is only because my 160 meter half sloper antenna requires it. 00 match at 14. The ground block then is connected to the GES using 14 AWG or larger with as short of a run as possible, and again with minimal bends. The coaxial cable that comes from the antenna also needs to be connected to the GES. This explains why, when you come home one day, your antenna is on the ground (see below). (A dipole antenna can be operated on its odd multiple harmonics!) The horizontal portion of this ham radio HF antenna should be at least 60% of the overall length, for best performance. Find low everyday prices and buy online for delivery or in-store pick-up. I'm new to this and am in need of guidance. That would be a "no ground plane" (NGP) antenna. 1951-52 Chevrolet AM/FM Bluetooth ® Radio Fits all Chevrolet Styleline and Fleetline models _____ Use the pull down menu below to build the radio for your car. lecture is over. Use thick, audio-system-quality ground wire, and connect it to a heavy, unpainted metal chassis component -- preferably the frame. I am mounting a multi-band antenna on a 50 foot tall 1 1/4" galvanized mast. Vertical antennas are very popular for HF operation because they fit in well to a small garden. Antique-Radio-Show. " It needs a power supply. McMahon then came out with "Flick of the Switch" that chronicled radios from the 1930s up to the 1950s. Names of those manufactures are Blaupunkt Graetz, Grundig, Nordmende, Saba and Telefunken. Notably, I have used the following calculators (see below), on top of my own calculations and they do not match. Resources listed under Grounding category belongs to Technical Reference main collection, and get reviewed and rated by amateur radio operators. Ham Amateur Radio Repairs, I provide honest, reliable, and affordable amateur ham radio repairs. " It needs a power supply. The main category is Shortwave antennas that is about Shortwave antenna plans and links. A frequently asked question is “How much of a ground system do I really need to make my vertical antenna work?” Usually,. There is also an early photo of the WRVA Richmond staff and band in front of the original studio at the Edgeworth Tobbaco Company. For a hundred years the amateurs have made more breakthroughs in antenna design than the professionals. It can run out the window to a tree, or stapled along under the eaves, or even in the attic. The other half is a "reflection" in the ground. Roy Lewallen, W7EL, ARRL Technical Adviser. VHF and UHF antennas need proportionally smaller ground planes than HF, and many mobile antennas will actually behave reasonably well with almost no counterpoise at all, though antenna efficiency and radiation characteristics are likely to improve when it has a good solid ground. It has been used with antique radios and commercial communications receivers. I did see the kit had an lighting arrester. Enlarge Image US Army Signal Corps unit of SCR-274-N radio set. These agree well with the real j-pole and 2BCX antennas measured in a real antenna test chamber in figure 2. Place a 1:1 Balun on the Antenna end of the Feedline. I've tried ungrounding the counterpoise (makes it similar to a dipole), I've grounded the radio to the same ground as the antenna as well as tried grounding to a much closer ground. Notice you should not only ground the coaxial cable, but the antenna mast as well. At this point it’s pretty crystal clear Fred Judd’s 2BCX Slim Jim antenna doesn’t offer anything special compared to a traditional J-pole antenna. 7,For antique radios use the center lead wire of the cable only. The ground side of the potentiometer must now be grounded to the chassis using its own. Army MARS netcom. They can also be used as filters for radio signals as well as loads, ground planes, and counterpoises within antenna systems. Follow the current in this system If the ground or negative wire from the radio to the battery opens, radio current would flow from the radio out through the antenna cable, the speaker jack, the key jack, or any other jack or connector that connects to the radio circuit board grounds to the vehicle chassis. It is a broadband, vertically polarized, omnidirectional antenna. For a receiver, you could just bring the end of the wire inside and clip it to the end of your radio's antenna using an alligator clip. Great question I receive is how to split the signal from the antenna for two or more radios to use. The radiation pattern of a vertical dipole is a 360 degree pattern around the main radiator. Ground Zero for your receiver. Jan 18, 1980 · How to Check A Car-Radio's Antenna By Ray Hill a good electrical connection between the tip of the antenna and the radio pin. Most crystal sets are aimed at the long and medium wave bands because these use high power transmitters so enough energy can be extracted from the signal to operate the headset. Experimental results to answer an often-asked question. However, the operating grounding conductor for amateur radio installations must not be smaller than 14 AWG copper or equivalent [810. The sloper's feed point is anchored high above ground near the top of the tower on which sits a grounded HF yagi beam antenna. Remounted thusly, the ground losses were reduced, which increased efficiency, and reduced the static level as well. How to Add Bluetooth to a Vintage Radio: Or, Broadcast to an Old AM Radio Using BluetoothI was recently given a Hallicrafters S-38B radio receiver that had been rescued from a flood but was otherwise was doomed to be thrown out. Building an antenna will help you learn how antennas really work. Shop AM/FM & HD Radio Antennas from top brands like Terk, RCA, Winegard and more at Parts Express. If an outside one. Crystal radio. 01 SECTION INCLUDES A. Improving Safety and Reliability of AA5 Radios. HF Ham Radio Antennas For Apartments. Grounding an antenna isn't difficult to accomplish yourself, but it shouldn't be too expensive to have a professional come out and do this for you. In this section we will take a look at ground mounted and above ground mounted vertical antennas, especially with respect to the radials and try to make some sense out of the subject. Sells High voltage components for vintage and Antique Electronic Restoration. I am mounting a multi-band antenna on a 50 foot tall 1 1/4" galvanized mast. But I wanted to put a better antenna on and run better cable, but can't get the SWR close at all with this. Equip your boat for amateur radio. Will replace broadcast band coils in any tube type radio. You then could crank it up to 50’. ANTOP Amplified Radio Antenna, Indoor AM FM Antenna 50 Miles Multi-Directional Reception for Stereo Radio Audio Signals, Built-in Amplifier Signal Booster and 4G LTE Filter with Adapter Connector. Ground the antenna mast [810. Radio waves are polarized between the atmosphere and ground so it is the return path for the RF. An antenna is something you usually do not (and cannot) buy, but even the most unskilled beginner can make his own antennas. FM1A was the first antenna to rocket the company to success. Sound Advice: The best radio antenna might not even be a radio antenna. The classic crystal radio antenna consists of a long suspended wire, the longer the better and the higher the better, and a wire to ground that completes the circuit allowing the electricity to flow. A two-tower array beams the signal west. There is quite a bit of talk these days between Amateur (Ham) Radio operators about the desirability for "good grounding systems" for their home radio stations. The water pipe cannot be plastic. The Horizontal Loop, also known as the Loop Skywire Antenna, is an old but very effective design. Lightning not. The term "no ground plane" refers to the fact that your vehicle doesn't need to supply the ground plane. The Browning Satellite Radio Trucker Mirror Mount Antenna has a new design for extended range. Notice you should not only ground the coaxial cable, but the antenna mast as well. It amplifies all weak AM signals, so a powerful local station might be heard over your entire AM radio dial. 1 meters); this length is very close to a quarter wavelength at 7 MHz. Antenna Arrays. The antenna is located at the bottom left corner of graph. I have an 8' ground rod on all three legs of my Rohn 25 tower & it is only because my 160 meter half sloper antenna requires it. Nationwide Radio. I do have a SWR meter, and can tune in the factory antenna fine. Both the safety ground and the neutral serve all the houses in the neighbourhood. Thanks much for your time and thoughts. HF Ham Radio Antennas For Apartments. What happens to all those electrons, you ask. What is the best way to ground my Clearstream4 antenna? Should I use coax cable with an integrated separate ground wire, or run. An example is a quarter-wave vertical. 01 SECTION INCLUDES A. Because there are so many options regarding mounting styles and antenna sizes, it is extremely rare to see an antenna included with a mobile radio. If the coax is fully connected and the radio is grounded you will get the false sense that you have a sufficient ground at the mount. Fabrication of structural steel. I want to get a better radio, but want to make sure the antenna system is okay first. If none of the above measures improves your AM reception, your radio needs attention. The radio has the original instruction sheet. As a Right Channel Radios customer, you have access to step-by-step video and written guides on how to do this -- make sure to use them! Ground Your Antenna Mount. The art of installing antennas internally into composite aircraft has left many people confused and perplexed so I have decided to try to give some tips and information on the subject. Interesting since i used a 1/2 wave i built mounted in the same spot and talked to a station in st. Certain "classic" case styles have become collector's items and bring high prices at auctions and flea markets. Contact us for details. An apartment antenna should have the following characteristics: Compact Size: This is the most obvious requirement of apartment antennas. You want the antenna as far up as possible for the greatest possible range. Follow these simple plans to build a multiband shortwave antenna and be on your way to world band radio excitement!. Transmitting element has 5/8,1/2,and 3/8 telescopic tubes at 8. 12vdc with positive or negative ground. How important is that skinny metal antenna mounted on the outside of your tractor cab. If you live an area that doesn't allow for multiple antennas to be installed, or have multiple radios that you would like to share a common antenna with, then splitting the signal is a big concern. Poles that once supported the WBOS shortwave antenna are still standing on the site although the shortwave station is long-gone. Rule of thumb: at least a half-wavelength above ground. Antennas that receive local television signals. The main category is Shortwave antennas that is about Shortwave antenna plans and links. Enter the desired frequency. When I searched on “AM radio antenna design”, the best result I found was How to Make the Ultimate AM Antenna by R. Basic troubleshooting procedures require a process of elimination in order to get to the culprit. I have an antenna that's well above the treeline, and I've heard I can add some small amount of protection by placing two bolt heads a short distance from each other, one connected to the antenna, the other connected to the ground rod. It may interest ham radio enthusiasts, hardware hackers, tinkerers and anyone interested in RF. This is also virtually identical to the "Colinear" antenna marketed by Radio Shack. If your antenna mount is one that is designed to accept a coaxial plug (such as the 2 ended PL259) or a PL259 with a fire ring on the other end (such as the FireStik MU8R Single Antenna CB Coax) then your work is easy. Reports from many users reveal that sometimes, especially when REconnecting an ATAS antenna to a Yaesu radio, the radio doesn't appear to automatically tune the antenna, and appears "confused". This connection allows the earth to receive and store excess voltage rather than the extra voltage bouncing back through your antenna and radio. I've actually thought about doing this, it seems like a good way to always have an antenna ground. If your antenna recommends a ground plane, then your boat must have a good ground bonding system. This fact applies equally well to ground mounted HF vertical antennas and is why radials are so important. This listing listings represents only a small portion of the various Aircraft and Ground Radio Transceivers that we can supply. It is built into the coaxial cable. GRC - Ground Radio Communication. Grounding Systems for Amateur Radio Stations. 15] and antenna discharge unit [810. Beverage antennas are a very specialized type of antenna. I tried for years to get rid of the whine with all kinds of filters, then I came across this site. Each end of the dipole is tied up 30 feet above ground. Ground Wire: (typical replacement radio wire color: Black) This wire completes the electric circuit that powers the radio and any other electric device. It black and has three post on it. A very short antenna can give amazing results, often performing as well as a long wire antenna if the proper buffer amplifier is added between the radio and the antenna. Most customers are simply unaware that a poor antenna can affect their radio performance substantially and they mistakenly expect that. Fourth, properly orient your AM antenna. Here's my two cents worth on antenna types, and how to match ground planes to the an-tenna on fabric-covered airplanes. These true full size 5/8 wave, 10/12 meter Hy-Gain SPT-500 Vertical Antennas were a legend in the '70s--now they're back to claim that status once again! Find Hy-Gain SPT-500 Super Penetrator HF Vertical Antennas SPT-500 and get Free Standard Shipping on orders over $99 at DX Engineering!. I have even done it in the fall and had good success. Quality antennas at a great price!. Jan 18, 1980 · How to Check A Car-Radio's Antenna By Ray Hill a good electrical connection between the tip of the antenna and the radio pin. All radios need some sort of antenna to pick up radio signals that will be transformed into audio. Notice you should not only ground the coaxial cable, but the antenna mast as well. Adjustable inductance for perfect. Building an antenna is cheaper than buying them. It sound to me like you are merely connecting the 2-turn pick-up loop to the antenna connection of your radios. 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. Let's review some of the better options. by Ted Benson (as published in Frendx 5/89) Most of us who grew up in the "nuclear ages" think of ground zero as the impact point of a nuclear warhead. Antenna Design. Half of your antenna is your radio frequency (RF) ground. Antique? Classic? Rat Rod? It does not make any difference to me. Equip your boat for amateur radio. 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. Use sandpaper to sand insulation off 1 inch of wire at the end of the extra wire dangling off your antenna, and from the free end of the wire connected to your ground rod. Operation of a monopole antenna with a ground. Once you have it on, you'll need to attach the antenna's ground wire to a solid ground. The "All American Five," or 5-tube AC/DC radio, was manufactured in vast numbers from the 1940s until the late 1950s or early 1960s. These test need to be made with the coax disconnected from the antenna mount or the radio. We are no longer exporting: Limited Stock: Electronic parts and equipment that we will no longer be able to acquire. 73 Magazine (also known as 73 Amateur Radio Today) (OCLC 22239204) was a United States-based amateur radio magazine that was published from 1960 to 2003. Base CB Antennas. Now radio amateurs can take full advantage of the versatility that a tuner used in conjunction with a multiband HF vertical antenna can give them. We are based in west central Florida, but willing to travel. Unseen are the two plates which attach under the bed, reminiscent of a 5th wheel mount. How to Build Several Easy Antennas for Amateur Radio. This listing listings represents only a small portion of the various Aircraft and Ground Radio Transceivers that we can supply. With a good antenna, like the random wire you can build by following the instructions on this web site, strong local stations will be very discernable during the day and at night even a few distant "skip" stations may be picked up. My antennas all have a surge protector installed on the coax before they enter my shack and are also connected to the same earth ground. SECTION 33 83 02 RADIO NETWORK / MONOPOLE ANTENNA TOWER PART 1 - GENERAL 1. Let's review some of the better options. Follow these simple plans to build a multiband shortwave antenna and be on your way to world band radio excitement!. The 80 meter antennas were put in as slopers with one to the NE and one to the SW. A number of antenna designs, especially those that are unbalanced with respect to ground (e. Our jpoles and groundplanes are intended for years of satisfactory ham radio antenna use on VHF and UHF frequencies, including the 2 meter, 6 meter, and 70 cm bands. by Brian, W9HLQ. The Antenna Disconnect Actuator is installed at the output from your transceiver, power amplifier, or antenna tuner in line with the antenna’s feedline. Newsgroups: rec. This entry was posted in Antennas, News and tagged Mag Loop Antennas, Magnetic Loop Antennas, MLA-30 on July 15, 2019 by Thomas. Antennas of the type commonly used with crystal sets are most effective when their length is close to a multiple of a quarter-wavelength of. I plan to use this radio with various antennas, so a tuner was a must. Vintage Car Radio - Modern radios, stereos and accessories to fit classic cars. Grounding Systems for Amateur Radio Stations. " It needs a power supply. SEE OUR CURRENT OFFERINGS. With the antenna system the possibilities are the coax cable, a stud mount, antenna or antenna's, the antenna ground, and in some cases the mounting location of the antenna. Poles that once supported the WBOS shortwave antenna are still standing on the site although the shortwave station is long-gone. GODAR's legendary FM 1A Indoor FM stereo antenna. Thank you for all those questions, please keep them coming. ars machina. 6' coax cable and 75 Ohm adapter included. Although the antenna is best operated within it's 2. Grounding of MiniWhip and other active whip antennas Pieter-Tjerk de Boer, PA3FWM
Topics Related to Antenna Theory. How to Build Several Easy Antennas for Amateur Radio. Ground systems with λ/4 radials rarelywere practical but very early it was recognized that an elevated system called a "counterpoise" or "capacitive ground", with dimensions significantly smaller than λ/4, could be quite efficient. The Horizontal Loop, also known as the Loop Skywire Antenna, is an old but very effective design. Some people have tried to install monopole antennas internally with a ground plane installed for the antenna to work against and this is just totally bad. Check Wiring/Connectors from/to Radio Antenna; Check Radio Antenna. A full-size antenna for HF (except for the 10m band) is not feasible for apartments due to the space required. Crystal Radio Engineering Antenna and Ground System 1 by Kenneth A. I do have a SWR meter, and can tune in the factory antenna fine. When the transceiver is turned OFF, the antenna’s coax signal wire and shield are shorted together and grounded, and both the coax center and coax shield are disconnected from the radio. I've noticed that pretty much every radio I have, plays better with the ground connected (although I don't have them set up that way generally while they're on display. How to Put Amateur Radio Radial Wires Down Without Digging The best time to put down radial wires for your amateur radio setup is early spring but it can be done other times as well. Antenna Forum. The real trick to good AM reception is to tune the radio to the antenna. FM1A has been our best selling antenna since 1997. Big Hair's latest antenna projects: When finished looking at our CB Radio Antennas, Also Check Out Our CB Radio Links Page We are offering IMAX 2000 Upgrades In addition to making our Top Performance CB antennas, we can also "upgrade" your existing IMAX 2000 fiberglass antenna, or any 5/8 wave fiberglass base antenna, to offer you more performance!. When used in the airplane, the lit-tle “rubber ducky” antenna supplied with handheld radios works well when you are close to airport traffic. Firestik II FS CB Antenna. You want the antenna as far up as possible for the greatest possible range. The term "no ground plane" refers to the fact that your vehicle doesn't need to supply the ground plane. What is the best way to ground a fiberglass antenna? To explain my setup: I will be installing a gable antenna mount which has a 6 extender pole on my single story home. How to Add Bluetooth to a Vintage Radio: Or, Broadcast to an Old AM Radio Using BluetoothI was recently given a Hallicrafters S-38B radio receiver that had been rescued from a flood but was otherwise was doomed to be thrown out. It is advisable to first click the blue information icons - perhaps also "FAQ". It is constructed of 2 lengths of “Box” steel inserted inside of each other. You can also add perhaps four or more wire radials at least a quarter wave long at the lowest frequency of operation, running out from the earth stake along the ground in different directions. it the biggest post and located in the middle of this device. 95663265306 meters, or 95. This increase in resistance caused by corrosion is also picked up by the tuner inside the radio and can cause static on the AM/ FM reception. BULL! First, an 857 can't be "plugged into the wall. A suggestion from Leon Crampin: Radios such as the Bush DAC90A need to have the generator connected to the UF41 grid during alignment. What is a "Good Ground?" Joseph J. Sells High voltage components for vintage and Antique Electronic Restoration. A totally different approach to low frequency antennas is shown in fig. Soil is a very effective absorber of RF energy at close range.