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Discone antenna basics. See the ray diagram to the right.
Discone antenna basics. Normally, a Discone antenna is much more sensitive to high frequencies than lower ones, and so they have a tendency to get stronger signals in the higher frequency arrays. Like the biconical dipole, the discone will show a broad SWR pattern with its lowest values near the low end and near the high end of the operating range. Advantage of using Dipole is ease of building it and it supports wide frequency band. Jun 24, 2020 · Fig 3: A VHF/UHF discone antenna provides reception from 25 MHz through 3,000 MHz and can transmit on 50 MHz through 1,200 MHz with up to 200W above 144 MHz The rotator I used is an old Yaesu model that sat atop our last HF tower for over a decade. THE DISCONE ANTENNA: Have you heard of it? It has been used for a long time. The Parabolic Discone is a way to achieve incredible omnidirectionalgain with discone bandwidth. NEC stands for Numeric Electromagnetics Code, and is a numeric mathematical technique based on the Methods of Moments that calculates the radiation field surrounding an antenna, but summing the field contribution of each segment and pair of segments to generate the field at every angle of elevation and azimuth angle of The discone antenna is a broadband basic antenna originally designed for VHF-UHF service. Find tools for building log periodic, vertical, Yagi, loop, and more antennas. So If you’re a beginner, Dipole antenna can be a worth choice for you. This antenna was originally sold as the Centerfire Deluxe Discone. What is an antenna balun for? How to calculate an antenna? Return loss, VSWR & S11. For future version or any proposals, please contact with Dr. The discone antenna is generally large, and they can be The discone's wideband coverage makes it attractive in commercial, military, amateur radio and radio scanner applications. A discone antenna is a version of a biconical antenna in which one Hybrid -144 MINI DISCONE Scanner Antenna VHF-Hi / UHF Peak Receive Performance: 137-170, 440-470 and 820-870 MHz. Although sometimes called a scanner antenna, the discone antenna receives its name from its shape: it consists of a top disc underneath which is a cone. A discone antenna is a monopole version of a biconical antenna, in which one of the cones is replaced by a disc. Antenna Fundamentals & basic aerial theory Radio antennas or aerials are essential to the operation of any radio system - understanding how they work and the basic theory is key to installing, optimising and designing antennas. Because of this, it is a good match for SDR receivers such as the popular RTL-SDR sticks. Visitors to the Titan Missile Museum can witness the Discone Antenna up close and marvel at its engineering prowess. Serkan Aksoy These lecture notes are heavily based on the book of Antenna Theory and Design by W. Building this antenna is difficult in general and finding the right or perfect materials is eve… Oct 27, 2018 · Putting a basic scanner antenna outside on your balcony/patio is going to improve performance. Ham Radio Operators can actually use the antenna. Amateurs have used it from 160 GVARC often uses the Titan Missile Museum 's Discone Antenna for a Special Event . They're useless. I was wondering what some things to do to improve my reception might be. 6K subscribers Subscribe Learn how to build a discone antenna for ham radio bands ranging from 40 meters to 10 meters with the help of ARRL Antenna Book plans. A discone is a broad-band multi-frequency antenna. Jun 5, 2023 · Dipole antennas are one of the most popular types of ham radio antennas. Unfortunately, being an apartment dweller, I have no room for such a monster antenna (I'm lucky to have the This article gives a list of brief summaries of multiple different types of antennas used for radio receiving or transmitting systems. Mar 29, 2019 · At first sight the discone doesn't sound very attractive. 2 MB] Presented to ARCA January 25, 2025 Steve Stearns, K6OIK [uploaded Feb. The approach applied in this book is similar to the do -it-yourself methods of trade books and theories are kept to a minimum. IDC is an abbreviated acronym for "Inverted DisCone". ” A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc. These antennas are usually mounted vertically, with the disc positioned on top and the cone at the bottom. Many variations on the basic discone have appeared since, having such features as multiple cones, multiple disks, meander lines for the cone, and mechanical tuning devices. Stutzman and G. So the radial discone has indeed on horizontal plane xOy the basic properties of a vertically polarised almost omni-directional antenna, a fact that encouraged design of a broadband model by simulation. We present the basic theory and rigorously validated calculators to analyze and design numerous antenna types and related components. Order now and experience the unprecedented reception of the Diamond D3000N – ready for any frequency challenge! Multimedia textbook This low-cost discone antenna solution covers all bands from 25 - 1300 MHz for scanners/receive. The disc and cone are usually arranged vertically with the disc at the top and the cone below, resembling an upside-down ice cream cone. Shop Discone Antennas at DX Engineering. Sent from my iPhone using Tapatalk Find your Diamond Antenna product and look for the 'parts' section, select the parts you're looking for, and add them to your cart. However, it can also be used as a horizontal antenna - it could be considered very broadly as a directive form of dipole. 2 Butterfly or Omnidirectional Pattern, 13 1-9 Beam Efficiency, 16 1-10 Input-Impedance Mismatch Loss, 17 1-11 Polarization, 18 1-11. The antenna's actual impedance varies depending on the cone's angle, frequency, and disc-to-cone spacing. tr). For starters, it has fantastic frequency coverage of 25-1300MHz. Apr 15, 2024 · Choosing the right antenna for your Software Defined Radio (SDR) can dramatically improve your signal reception, transforming a mediocre experience into a remarkable one. When the Titan II became operational in 1963, its communication system included a large, broadband discone antenna that is still standing today. The antenna can be used as a DIY indoor antenna of a GSM/4G repeater, or as an outdoor antenna for a scanning all-wave receiv Properties of Antennas 1 1-1 Antenna Radiation, 2 1-2 Gain, 3 1-3 Effective Area, 6 1-4 Path Loss, 6 1-5 Radar Range Equation and Cross Section, 7 1-6 Why Use an Antenna? 9 1-7 Directivity, 10 1-8 Directivity Estimates, 11 1-8. Go here for Manuals for Antennas, Tuners, and Couplers Feb 3, 2024 · Wire Antenna Basics [7. 5:1 or better Resonator and tunable whip Easy to install Includes Mounting Hardware User Manual Jul 26, 2022 · Discone antenna online calculator. 0 transceiver installation. It couples the low impedance transmission line to the higher impedance of free space. Conical antennas consisting of a single cone fed at its apex against an infinite ground plane are often called “monocones” or less often “unipoles. The driven element is a discone antennaat the focus of an extended parabolic reflector. ” If the infinite ground plane is replaced by one that is finite and circular, the antenna is called a “discone. Some are two cones point to point. SO-239 termination requires cable with a PL259 on one end. It’s arranged so that the cone sits underneath the disc. How to use the Discone Antenna Lighting of the Discone Input from Marty Greene Input from Rodger McIntyre The D130NJ Diamond Super Discone requires one of the following Coax Cables to connect from the antenna to the scanner. Mar 12, 2014 · If you want the discone calculator (tiny little thing but it's proven useful to me), you can get it from the author's site at: Antenna, VE3SQB Ham radio antenna design software programs and sstv,qha, amateur radio,sstv,antennas,j-pole,quad,dipole,discone,antenna program, super scanner, pdl, omni, rhcp, bazooka, coaxial dipole,skyhopper) The Discone Ultra-Wideband Antenna is perfect for monitoring commercial 2 way radio services, amateur bands (6m, 2m and 70cm), UHF CB, VHF Marine, and narrowcast services operating on VHF “high” band. Omnidirectional, vertically polarized and with gain similar to a dipole, it is exceptionally wideband, offering a frequency range ratio of up to approximately 10:1. They consist of a wire or metal rod that is split in the middle and fed by a transmission line. edu. Ham Radio Operators, you can now broadcast and listen on the discone antenna at the Titan Missile Museum. Signals received are crystal clear, adding more to the antenna’s value. A discone antenna consists of three main parts: the disc, the cone, and the insulator. The antenna is vertically polarized and extremely widebanded (meaning it will receive, and transmit, on a wide range of frequencies). 1 Circular Weight: approx. 2 GHz. A traveling wave, excited by the antenna input between the apex of the cone and the disc, travels over the surface of the cone toward the base until it reaches a distance along the slant surface of the cone where the veritcle dimension between that point and the Descriptions ・Omnidirectional discone antenna for receivers Specifications Ingress Protection (IP) ratings define the level of protection provided by enclosures to prevent the ingress of foreign objects (dust) and liquid into the electrical equipment. L. This antenna also happens to be super convenient Collinear antenna basics The collinear antenna antenna is most commonly found these days as a vertical antenna with several elements stacked one above each other. It is usually mounted vertically, with the disc Feb 4, 2024 · Well before I got a GMRS license I was a radio hobbiest in a more general sense, and my sort of "workhorse" antenna for VHF and UHF is a Taurus D-1000 discone antenna which lives atop a 21ft mast from ground level. The cone section below the disk will have the cone apex angle changed in a suite of tests. com, user cyfus has created an instructable showing how to build a 55 MHz+ home made discone antenna for his RTL-SDR dongle. Jun 8, 2017 · I'm wanting to set up a Discone Antenna for general listening, I'd obviously want this on my Roof. It can operate over a 10 to 1 frequency range Jul 26, 2023 · Scanner Antenna/Discone Antenna/GMRS Antenna with 10meter Cable PL-259 SMA, 25~1300 MHz Support CB, HF, AIR, UHF, VHF, FM, AM, FRS, GMRS, 1090MHz Aug 12, 2015 · I am trying to build a discone antenna with a frequency range of 30-512MHz. The discone variation Notes on HF Discone Antennas L. Analog or Digital. Discone antennas are best for wideband monitoring 30-1300MHz and are the most common antenna type. 95* Buy It *After Coupons & Promotions. [1][2][3][4](p 4) Discone antennas are very broad band biconical-type antennas, which have highly horizontal radiation patterns. This will also Discone: This guide will teach you how to make a durable discone antenna aimed at the rtlsdr crowd. A discone antenna is a type of biconical antenna which replaces one of the standard cones with a disc. Topics include directivity, polarization, bandwidth, impedance, frequency bands, all things necessary for an understanding of antenna theory, antenna basics and antenna fundamentals. I attached the rotator body to a small piece of plywood using the original Free Shipping - Diamond Antenna D3000N Super Discone Antennas with qualifying orders of $99. The radiation fields of the discone antenna with an oblique cone can be derived from the fields of an equivalent Huygens source on the aperture. It is an omnidirectional antenna with wideband characteristics. Looking for a new Discone Antenna? Click here to see our full review of the Wideband Desktop Discone Antenna, including why it could become a new favourite. Better: Ground Plane Scanner Antenna Kit The Comtelco is a great mobile antenna, now you can use it as a base antenna. It had been in storage for almost as long but still functioned properly. Restrictions by the owners are an issue, but they can be overcome. e. Discone Antenna Poor Reception It's frequently stated that Discone antennas have poor reception, however, this isn't necessarily true. RESULTS 1, A composite discone-cage vertically polar; ,-d antenna has been developed. I understand these antennas are low-zero Dec 16, 2019 · Very cool! If you want to design and build your own discone, there are lots of resources on the internet. The basic design is a cone with the little end up. Folded Dipole (Bandwidth Compensation): A simple compensating network for increasing the bandwidth of a dipole antenna is shown in Figure 9-39a. Oct 15, 2017 · I’ve had an attic mounted discone for about 6 months now and I’ve been fairly happy with it for monitoring anywhere from analog or digital frequencies in the 100 bands to 800 bands. Oct 5, 1995 · A UHF Discone Antenna for Scanners William Sheets K2MQJ Rudolf F Graf KA2CWL The availability of scanners and wideband receivers covering the upper UHF spectrum above 800 Mhz necessitates reasonably priced, wide bandwidth, effective antennas. Selecting the right discone to buy is not always as easy as it seems. The “long wire” (more correctly named as the “random wire” antenna) and the whip antennas are the lowest cost options but have some limitations which is why the more expensive active magnetic loop and discone options have So one very small antenna and a bigger antenna instead of the single Discone, but performance would be significantly better. Dec 3, 2013 · Tram provides premium antenna components that provide functionality and durability of the antenna to deliver quality communication connections you depend on. That worked very well on VHF high and UHF, and was my 1st dual band antenna for 2M / 440MHz. Home > Antennas > 118-3000 MHz Unity Gain Discone Antenna Our Price: $3,299. Plus, it operates continuously. The downside is that you’re going to suffer interference from all directions and almost any frequency. Jan 24, 2024 · A Discone by design is a non resonant antenna that covers about 8 octaves of frequency range and the Sirio SD1300 appears to be the common size where the Discone part starts around 110MHz which would then cover up to about 880Mhz by design. It provides a VSWR of 3 to I or better throughout the 2-to-30-Mc/s band. Sep 12, 2025 · The Antenna Calculator aims at delivering a comprehensive and practical tool to Antenna Engineering students and practitioners. But if you want a general purpose wide band vertically polarised antenna for listening and local transmitting, then the discone could be just right. Couldn't be happier with my Diamond NJ130 discone antenna! If you incorporate Discone Antennas: Designs Explained The following infos are related to a request by N7FWL. A search for “discone antenna design” yielded dozens of references, including: White Paper – Discone Antenna Design Discone Antenna Calculator Let me know if you’ve built your own discone or how it goes when you do roll your own. Starting from ideas in geometry and topology, different linear wire antennas are introduced, such as center fed dipoles, off-center fed, and end-fed wire antennas. In theory, this type of aerial should be effective up to 10 times the design frequency for reception. Each antenna model is carefully planned and developed to ensure great transmission over many uses. Would I be better off to build that 80-meter discone, or a set of the directional antennas from the ON4UN book? Would the raised current point of the discone and resulting reduced ground losses be worth experimenting with? The Discone Antenna This antenna is often implemented in a skeleton form. See the ray diagram to the right. Built by Collins Radio Company, the antenna is 80 feet tall and has a large crown, enabling it to radiate signals over a wide range of A discone antenna is a monopole version of a biconical antenna, in which one of the cones is replaced by a disc. In this article, we’ll explore some of the best SDR antennas for signal reception, considering factors like frequency range, antenna gain, size, and specific use cases. , The discone section, owing to its elevated Discone antenna - Antennas - Electronics and Telecommunication- GATE (Graduate Aptitude Test in Engineering Exam)Exam. Are you looking for the best Discone/Scanner Base Antennas for sale? Shop all Wideband Receive Discone/Scanner Base Antennas for sale here today at The Antenna Farm. Find your Diamond Antenna product and look for the 'parts' section, select the parts you're looking for, and add them to your cart. 7 times a quarter wavelength of the antenna's lowest frequency. Dec 14, 2024 · A discone antenna is a monopole version of a biconical antenna, in which one of the cones is replaced by a disc. The special Wideband Antenna Typess to be described include the discone, helical and log-periodic antennas, as well as some of the simpler loops used for direction finding. Mar 10, 2025 · The antenna’s wide frequency range also enabled it to communicate with various ground-based and airborne systems, further enhancing its versatility. I don't come from any engineering or electrical backgrounds, However I know the basics of electronics and Radio. Ideal as a basic scanner antenna for demanding listeners and radio amateurs. Explore the evolution and unique features of our ground plane independent design, engineered to meet the dynamic demands of military operations and disaster preparedness. wind resistance or wind loading and its weight. In summary, the Discone Antennas D3000/ Scanner Antenna is a high-performance, multi-band antenna that is ideal for use with scanners, SDR radios, and other radio communication equipment. Introduced in 2005, this antenna quickly became one of our best selling items. The Discone antenna is remarkable in that it is capable of receiving and transmitting over a wide range of frequencies with good matching. A Discone is a wideband antenna that is a great starting antenna for general RTL-SDR use. Ultra wideband design providing continuous coverage from 25 MHz to 3000 MHz. Well, a discone antenna can achieve that bec ause it functions more like a transformer than a conventional antenna. The disc: The disc should have an overall diameter of 0. In theory the gain is the squareof a typical dish antenna, half the db value I Aug 2, 2014 · Industrial wireless tutorials: What you need to know about industrial antennas, antenna functions, and antenna capabilities. Antennas are typically grouped into categories based on their electrical operation; the classifications and sub-classifications below follow those used in most antenna engineering textbooks. Small, UHF forms may be constructed of sheet metal and thus exhibit the distinctive Disk and Cone. If you've got a RTL2832 software defined radio dongle you probably got a short vertical antenna maybe 15 or 20cm high. Oct 5, 2013 · Beginners Antenna Guide Akos from the SDR for mariners blog has just written another post that is a guide on constructing and buying beginner level antennas for the RTL-SDR. Scale-model measairements demonstrate that low-angle radiation is provided by the cage section at most frequencies from 2 to 8 Mc/s. The special geometry of this design results in a wideband or broadband frequency response, meaning it can operate effectively over a broad range of DIAMOND D-220S 100 - 1600 MHz Mobile Mini Discone Antenna PL259 Connector HRO Discount Price: $124. . In theory the gain is the squareof a typical dish antenna, half the db value I ST4 Antennacraft Omni Base AntennaST4 Outdoor Scanner-Ham Discone Antenna Omni-Directional Reception 44" Vertical Height Accepts PL-259 Connector (not included) Wide 25-1300 MHz Scanner coverage 50, 144, 220, 440, 900 and 1296 MHz Ham Bands 200 watts maximum transmitting output SWR efficiency: 1. Step 4 - Home Scanner Antenna Installation Before installing your antenna you’ll want to connect it to your scanner to check reception. Learn more about scanner antenna types here. price. The default HamSphere 4. Click now for the top 5 options along with a useful buying guide. 100 MHz Antenna Maximum Frequency Limit: 3,300 MHz ICOM AH-8000 Discone Antennas ICOM AH-8000 discone antennas offer super-wide frequency coverage. For receiving the commonly used Public Service frequencies plus Railroad, Marine, and Weather. Yagi antennas are for single or narrow band use. Terrible on VHF low band, but that was to be expected. Over on instructables. Amateurs have used it from 160 meters up through 10 meters, although the Reviews For: Diamond D-130J discone Category: Antennas: VHF/UHF+ Omnidirectional: verticals, mobile, etc eMail Subscription Registered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted. Get reception from 100 to 3,300 MHz with these ICOM pre-assembled, omnidirectional antennas! And they have 118, 145, 220, 430, 900, 1,200, and 2,400 MHz ham bands for transmission. For the best scanning/receiving antennas, shop Moonraker's online shop. B. The radiation pattern in the vertical plane is The discone antenna is a monopole variation of the biconical antenna using a small ‘ground plane’, therefore the discone is a modified dipole shape. The discone and conical skirt monopoles find wide application in the VHF (30 to 300 MHz) and the UHF (300 MHz to 3 GHz) spectrum for FM broadcast, television and mobile communications. Essentially, a discone is a top-fed conical monopole, a brother to the standard linear monopole. Apr 23, 2019 · FWIW, my Diamond NJ130 wideband discone is my everything antenna. It can also be used for transmit at 144, 220, 440, 900 and 1290 amateur radio bands. The proposed antenna consists of a disk, a modified cone, an inverted cone, four shorting probes, and two sleeves. I looked this morning on the net at Feb 20, 2025 · What is the best discone antenna? The Tram 1410 Discone Antenna is the best discone antenna and to no surprise. I use a directional yagi for my local Ohio MARCS P25 Phase 1 digital simulcast system, as it performs better aimed directly at my closest site, but everything else in my shack is fed by my discone and duplexed out via a Stridsberg 8-port multi-coupler. My general observation from the analysis I've done is that a simple 1/4 wave groundplane or 1/2 wave dipole will give good service over a range of say half the frequency it's cut for to four times it's cut frequency. The Discone Antenna This antenna is often implemented in a skeleton form. It's marketed as a "scanner antennas" but does state that it's capable of transmit Sep 23, 2024 · A compact VHF/UHF ultrawideband discone antenna with consistent patterns is proposed in this article. The Scanner 25MHz–1,300MHz VHF/UHF Super Discone Base Antenna Plus CB Transmit Bands will offer premium service for years to come. Seeing this, I decided it was time that I do a little experimenting and build one for myself. The Moonraker Scanking HF Discone is an excellent base antenna, perfect for all HF, VHF and UHF bands . 95 Availability: Usually Ships in 2 to 4 Weeks Product Code: 20-542057 Qty: An omnidirectional antenna like the discone also needs clear space around it, so avoid mounting it directly next to other antennas or metal structures. Get the ultimate in wideband coverage with discone antennas from DX Engineering! Shop discone antennas from Diamond Antenna, Comet Antennas, Hustler Antenna, MFJ, and ICOM. The RF is focusedupward by the parabola then deflected sideways by a 45 degree cone reflector. Amateurs have used it from 160 Engineering studies of the discone followed shortly thereafter by Nail at the Federal Tele-communication Laboratories and by Crowley and Marsh at Ohio State University. Some are two flat triangles point to point. The tower and guyline system could easily house a full sized 80-meter wire discone. Kandoian, and brought to the attention of radio amateurs in the later 1940s, the following years saw conversions of the design to HF use. This book contains everything you need to understand how radio signals propagate, how antennas work, and how to construct your own antenna system. My one advantage is I am on the second floor. This will also help you choose an antenna location and make Mar 2, 2005 · A dipole in it's basic form is a half-wave antenna cut for a specific frequency or narrow range of frequencies. To improve the radiation angular distortion at high frequencies, two sleeves are inserted into the discone antenna. A typical Discone antenna is quite commonly used for VHF/UHF and Microwave. Shipboard Communication Antenna Systems Back to Back to Back to Please with any additional photos, info, etc. The discone antenna is not a good ham antenna, it is all right for commercial and military purposes. Dec 30, 2004 · The radiation from the discone can be viewed in this somewhat oversimplified way. G. com, so I am a newbie here, sorry not being very meticulous in expressing the steps correctly. Moonraker has an array of Discone Receiving Antennas, from affordable to top-shelf. The Disadvantages of Discone Antennas A discone antenna allows you to receive a wide frequency range from all directions. 4 days ago · How to choose the correct police scanner antenna including range, indoor & outdoor, base, mobile & handheld scanner antennas, installation, amps & manufacturers, things to watch out for & more! New To HF? SEARCH About Hamuniverse Antenna Design Antenna Safety Ask an Elmer About Batteries Code Practice Computer Help Electronics Emergency Power! FCC Information Ham Hints - Humor Ham Radio Books! Ham Radio News! HF & Shortwave License Study Links Midi Music Reading Room Repeater Basics Repeater Builders Info RFI Tips and Tricks Ham Satellites Shortwave Listening SSTV Support The Site Moonraker has an array of Discone Receiving Antennas, from affordable to top-shelf. Figure 1-a is an idealized sketch of a true discone antenna and its basic dimensions. 0 antenna. Its coverage in the horizontal plane is omnidirectional. Unfortunately, being an apartment dweller, I have no room for such a monster antenna (I'm lucky to have the Sep 9, 2025 · Explore a variety of online antenna calculators for designing and calculating antenna dimensions. The disc and cone can be made from solid metal sheet, but this would increase the windage, i. HF Discone Antenna 10 MHz and Up Reading the ARRL Antenna Book (17th Edition) I came across plans for a discone antenna that was usable for the ham bands from 40 meters through 10 meters. This antenna is about 32 inches tall and 32 inches across. Feb 22, 2024 · Discone Antennas: Your lifeline in critical situations. The discone's wideband coverage makes it attractive in commercial, military, amateur radio and radio scanner applications. No interference could compromise the antenna’s consistency. I will show you how to build a complete discone antenna with just materials from home depot and radioshack in one afternoon for about 100 to 150 dollars. Mar 6, 2021 · The “long wire” (more correctly named as the “random wire” antenna) and the whip antennas are the lowest cost options but have some limitations which is why the more expensive active magnetic loop and discone options have become popular. It is usually mounted vertically, with the disc at the top and the cone beneath. A unique antenna design that combines a disc and a cone - the two elements that give this antenna its name. Thi… The picture above shows the four most popular choices of antenna for covering the bulk of the spectrum offered by wideband SDR receivers like the SDRplay RSP family. Once finished, fill out your information and submit your order. The gain of discone antennas is similar to that of a dipole antenna. Apr 3, 2017 · Just bought a discone antenna for my attic (I l live in an HOA neighborhood so roof mounting is not an option) and am looking for ways to mount my antenna without having to leave off any spokes due to studs etc. Nevertheless, discone dimensions are not very critical for optimum performance. The post shows how to build a simple ground plane antenna out of wire coat hangers, and also discusses monopoles, telescopic antennas, rubber duckys and discone antennas. A. May 7, 2021 · Your search for the best discone antenna ends here. Indeed, it is a staple for upper-range scanning receivers. Antenna Basics and Theory -- WOW -- See this One -- From Navy Training Series Antenna Basics and Theory -- From Ian C. I had that one over 30ft in a large fur tree, and the aluminum GND radials broke Discone Antennas D3000N/ Diamonds Scanner Antenna/CB UHF VHF Antennas 25-3000MHz for Scanner SDR Radio, Receive Transmit HF VHF UHF MW SW HF AIR FM FRS GMRS Antenna 4 $18400 FREE delivery Thu, Jul 25 Discone Antenna Effectiveness and NOAA Satellites TSG 20. revolution around z-axis. Choose your desired length from the options below. Higher-order modes are suppressed, and ultrawideband consistent A fundamental list of antenna theory concepts, an antenna basics menu is given here. It’s used by radio They are a combination of the two basic antennas: the monopole/dipole antenna and the biconical antenna. The HamSphere IDC antenna is the first basic antenna that ships bundled with the HamSphere 4. A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc. With its ultra-wide bandwidth, ease of use and affordable price, the TXHF-6 discone antenna is a unique solution for ham radio operators looking to simplify their station. This antenna requires one of the following coax cables to connect from the antenna to the The DIY Scanner Discone By KJ4DGE I rent a room in a area of Alexandria far enough away from Metro DC to be a hindrance to listening to VHF/UHF. Thilie. Apr 4, 2024 · A discone antenna is an omnidirectional, wideband antenna that consists of a disc-shaped element mounted above a cone-shaped structure. Dr. They actually go much higher but the radiation pattern swings upward above the horizon about halfway through the basic frequency range. Wide angle biconical antennas are popular for their wide impedance bandwidth and omnidirectional radiation coverage. Cebik, W4RNL The discone antenna is a broadband basic antenna originally designed for VHF-UHF service. Developed during WWII by A. Dipole antennas are for single or narrow band use. This antenna is ideal for scanner owners who are interested in listening to shortwave but have limited space for a long cable. Couple that with being in a valley, and next to the woods and it's a real RF hole. Hovering above the point of the cone is a round disc. This is the basic form for a 16 spoke, Discone Antenna. They work for me. Reviews For: Diamond D-130J discone Category: Antennas: VHF/UHF+ Omnidirectional: verticals, mobile, etc eMail Subscription Registered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted. I have come across designs of varying complexity made from different materials such as electrical wire, coat hangers and aluminium bars… Review Sirio Antenna SD2000N Discone antennaThus far, I've used two brands of Discones over the last 30-some years, the 1st being the Radio Shack one from the 1980's. In other words your A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc. Discone Antenna: The Discone Antenna This is my first time on instructables. There are many variations in shape to this type of antenna. Jan 4, 2019 · Both software packages are based on a core calculation engine called NEC2. The antenna's feed point is at the center of the disc. Jan 28, 2020 · The basic difference is that the dualband antenna will work profitably in the designed ranges, while diskone works without profit but usually from about 30 MHz to even 1. Best: Discone Base Antenna This Discone antenna is omni-directional and covers the full scanner range of 25 thru 1300 Does anyone know if there are plans for a discone scanner antenna on the web to build? Notes on HF Discone Antennas L. Antenna characteristics are Dipole Antenna or Aerial Explained Understand all the fundamental aspects of the dipole antenna - how it operates, its length, bandwidth & the practical elements of how to make one & install it. Serkan Aksoy (saksoy@gtu. Jul 28, 2020 · Learn how to use the antennas that came with your RTL-SDR blog bundle or Nooelec NESDR SMArt bundle! Details also provided on other popular antenna types like Discones and Dipoles, and there are Mar 24, 2023 · Discone antennas are best for wideband monitoring 30-1300MHz and are the most common antenna type. Oct 17, 2023 · The antenna is also adjustable, allowing you to fine-tune your reception and transmission for optimal performance. All of these documents base the size according to Reviews For: Radio Shack Discone Category: Antennas: VHF/UHF+ Omnidirectional: verticals, mobile, etc eMail Subscription Registered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted. All that's means is the built in antenna on the Pro-2004 does not work well at all. 2. What parts would I require? What tools? Sep 16, 2012 · A discone antenna is a form of bi-conical antenna with spoke radiating both outward and downward in a circular pattern. The most commonly used arrangements for wideband reception on scanners using an outdoor antenna system are multiband trap antennas, a discone, or a The ARRL Antenna Book for Radio Communications is a single resource covering antenna theory, design and construction, and practical treatments and projects. Nov 11, 2017 · I have been meaning for some time to make a 110MHz discone aerial for my RTL-SDR. Can someone point me in the right direction in how to build one with this bandwidth? I was researching the internet and came across a few documents on technique used. Online FREE Course and Study Material for the preparation of GATE (Graduate Aptitude Test in Engineering)Exam Theory basics About RF transmission lines Matching and balancing. 1000 grams This super discone antenna combines power, precision and reliability in one compact solution. Dipole modifications are often used to obtain wide-band operation without greatly increasing complexity. Get ready to experiment and enhance your radio communication setup. The application of the broadband criteria to 2G/3G band resulted to the design of a A discone antenna is a version of a biconical antenna in which one of the cones is replaced by a disc. 3, 2024] ABSTRACT: This presentation introduces the fundamental principles of linear wire antennas. 1 Pencil Beam, 11 1-8. The DA3200 is a rugged 16 element discone antenna and is Ideal for professional, surveillance and monitoring applications. This book is one of a series designed to help anyone who wants to construct antennas for radio transceivers but who has only a basic knowledge in radio - communications technology. Detailed illustrations are extensively used throughout the whole process of antenna Home » Antennas & Propagation » this page Discone antenna includes: Discone basics Buy best discone antenna There are very many different discone antennas from which to choose. What is the difference? Antenna S-parameters physical meaning. 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