Just one of many challenges a condo radio op has to creatively deal with. Bingfu Dual Band VHF UHF 136-520MHz 42.5 inch Foldable CS Tactical SMA Female Ham Radio Antenna for Kenwood Wouxun Baofeng BF-F8HP UV-5R UV-82 BF-888S GT-3 Handheld Ham Two Way Radio Walkie Talkie. The popular portable ham radio antenna for transmitting and receiving on HF and VHF bands. … Such devices usually operate on the frequency bands of VHF, UHF and occasionally HF. $199.95 $185.95. A license is specific to the radio service, i.e., if you have an Amateur Radio (ham) ... MLA-30+ (plus) 0.5-30MHz Active Receive Antenna Low Noise Tecsun pl-990 SSB radio receiver all-band- special price Assembled ATU-100 1.8-50MHz Tuner by N7DDC ATU-100 DIY Kits Tuner by N7DDC Firmware programmed/ SMD/Chip soldered. Mag-mount antennas are available from HF […] See more ideas about ham radio antenna, ham radio, radio antenna. CB vs HAM for Off Road 4×4 Use: Which Is Better? The horizontal portion of this ham radio HF antenna should be at least 60% of the overall length, for best performance. Obstructions. Now, if you want the best mobile ham radio antenna to attach to a mount like that, consider the CA2X4SRNMO Original. Cushcraft A270-6S DUAL BAND (VHF/UHF) YAGI ANTENNA Find many options of HF, mobile, and base antennas at Walcott Radio. $24.95. How to Run The SDR Virtual Ham Radio — Listen to Ham Radio Online, Ham Radio 2.0: Episode 83 – Comparison of Digital Modes for Amateur Radio. ... Base Antenna. The 40 Meter Isotron Antenna. Also Great For Limited Spaces. There seems to be a problem serving the request at this time, Showing slide {CURRENT_SLIDE} of {TOTAL_SLIDES} - Shop by Compatible Product, Showing slide {CURRENT_SLIDE} of {TOTAL_SLIDES} - Shop by Band. Custom RF design for HOA and XYL approval. Whatever your reason for having a ham radio wire antenna, whether its your wife, neighbors, HOA ( I hate those), small yard, your renting, your in an apartment or safety reasons or any other reason. Whats is the best ham radio antenna? For ham radio, NVIS, disaster, & emergency communication services. In this section you will find descriptions of antennas I have personally built and used (and liked) over the years.. Preview unit Kenwood D-Star / digital / APRS HT [ Video ] New Home of the Force 12 Antennas. Single Band; Dual-Band; Tri-Band; Multi-Band HF/VHF/UHF; Base Antennas. Conclusion. Join our E-mail list to receive your FREE copy of our MFJ-3302, BOOK, 73 DIPOLE AND LONG-WIRE ANTENNAS. NEWS!! Custom RF design for HOA and XYL approval. Wire Antennas products from Ham Radio. One thing about vertical antennas is that … The neat thing about this product is that it is very versatile, and goes with most NMO mounts. Jnc 36 … Chinese Radio HT Ant; Dual-Band; Tri-Band; Scanner Antennas; Adapters/Jumpers; Mobile Antennas. Resonant antennas cut to the exact frequency, in the middle portion of the band, and used with a tuner of sufficient size, can tune several bands. Trending at $91.96. However, on most VHF and all UHF bands, optimising in such a way is detrimental to the receive performance of the antenna and therefore inappropriate for the antenna to be designed this way. CHECK OUT OUR SALE ON XG-90 Radio AND XPA-125B Amplifier GET THEM BEFORE IT'S TOO LATE!!!!!. Sales, Supplies, and Service. Listen to the big signals that come from stations using … So what's new in 2020, in Ham Radio Antenna Designs? Best HAM Radio Antennas. Ham Radio and Amateur Radio online equipment sales. The formula used to … One of the best kept secrets of Amateur radio antennas are either the box, or delta loop antennas. When you combine the vast variety of commercially available antennas with all of the antennas designed and built by hams, you have an almost endless number of possibilities to choose from. Boom Length: 4', Longest Element: 40.7', Power Rating... $139.95 $124.95 You Save: $15.00 (11%) SKU: 12M4DX M2 Antenna. For example, on many HF bands, optimising an antenna for maximum gain is the way to go in most cases (but not all) provided a near 50 Ohm impedance can be maintained through its bandwidth. Each band is further divided into meters. $218.35. The Dual-Brand Mobile Antenna has a three-inch ‘Strong Rare Earth’ magnet base, which lets you easily mount it on your car for stability. Price: $37.99. $84.90. Such devices usually operate on the frequency bands of VHF, UHF and occasionally HF. Here are our HAM radio antenna reviews. Something went wrong. Your first Amateur radio antenna. Ham radio antennas that you can get for your vehicle, are going to use the exact same technology as CB antennas, your AM/FM car stereo antenna, your internal cell phone antenna, wi-fi antennas, TV antennas… amateur radio. DXE carries top ham radio brands including Yaesu, Kenwood, ICOM, MFJ, Butternut & more. The most easily removed antennas are the mag-mount models, which use a magnetic base to hold themselves to a metal surface. The most common antennas are ham radio wire antennas. Amateur Radio Antenna Sold Here,we Update Our Stocks to Keep in Touch With Modern Improvements in Antenna … This article helps to explain the differences between them. Our focus is connecting local hams and providing emergency communications training and services. The formula used to find a full wave loop antenna … Amateur Radio Shop HAM Radio Dealer Supplier New/Second Hand Barnsley 01226 361700 Icom, Kenwood, Yaesu. The legacy models will be re-optimized using NEC4 by JK and mechanically built to specification as the other JK models. They follow the same rules of physics. Magnetic loop antennas of 1 to 3 meter diameters have been used successfully even they are about 40 to 60 percent efficient. Your first Amateur radio antenna. Office hours, Monday through Friday 9:00 a.m. to 4:30 p.m. EST (770) 614-7443 Phone (678) 731-7681 Fax E-Mail … The Isotron Antenna. - The N9TAX 2 Meter Ladder Line Slim Jim Antenna Review . World's Largest Supplier of Amateur Radio, Ham Radio, and Communication Equipment. Hamvention Awards – 2016. If you are looking … Same Day Shipping for antennas, amplifiers, microphones, radio systems, transceivers & more. You also have the option to narrow your search by antenna type, connector or mount. This rule is yes for Amateur radio antennas but I believe the condo is concerned about the mini satellite dishes springing up or HD antennas. Whatever your reason for having a ham radio wire antenna, whether its your wife, neighbors, HOA ( I hate those), small yard, your renting, your in an apartment or safety reasons or any other reason. Urban Rooftop Ham Radio Antenna: I recently put a ham radio antenna on my roof, so I could get better signal inside my apartment, which isn't on a high floor. Monroe man helps in Uintah County emergency through ham radio. ; Easy, Quick, and Simple Installation Get it as soon as Sat, Dec 5. Resonant antennas cut to the exact frequency, in the middle portion of the band, and used with a tuner of sufficient size, can tune several bands. 10-40 Meter Loop Add to Cart Learn More Reviews 10-40M PREMIUM 144~148 MHz. There are many challenges for today’s amateur radio operators. We carry leading brands such as Diamond, Wilson, Firestik and more. $18.99$18.99. 10-40M AntennaRemote Control Matching networkMounting hardwareCabling Add to cartLearn MoreReviews JPole Jr & Sr $199 34′ JR 6-80 … Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! We carry leading brands such as Diamond, Wilson, Firestik and more. Visit Diamond Antenna on Facebook & Instagram! HYS Dual Band Mobile Antenna 2m/70cm VHF/UHF Ham Radio Antennas with 13ft/About 4m RG-58 Coax Cable NMO Base to PL-259 Connector for Motorola Baofeng Kenwood Car Truck Amateur Radio. Resources listed under Amateur Radio Antenna Projects category belongs to main collection, and get reviewed and rated by amateur radio operators. When it comes to getting the most enjoyment out of Amateur Radio, there is nothing more important than your antenna system. It is both waterproof and freeze proof, so it operates well even in adverse weather conditions. Amateur radio antennas come in several types, commonly referred to as bands. SPECIAL GUEST ARTICLES AND PROJECTS ANTENNA PROJECTS ANTENNA PROJECTS ARE … How to Listen to Real Spy Broadcasts, How I Installed a Ham Radio Antenna on my Truck, OpenRepeater for Raspberry Pi, Soundcard Interfacing, DigiSkimmer, Isolated PTT and CW Key interface, WiRES-X Bible, Simple Online QSL Generator, Ham radio 40-meter dipole: your first antenna, IC-705 completely cordless digital ham radio, The parallel or fan dipole is another type you could choose for your amateur … amateur radio. Proven Antennas A new "e-book" pdf Release by N4UJW and KL7JR The TAK-tenna! This is the newest way the cutting edge designers are looking at Ham Radio Antenna Design. Single Band; Dual-Band; Tri-Band; Multi-Band HF/VHF/UHF; Base Antennas. For Instructions on downloading your product manual, click HERE Choose from a wide range of antenna types, including single-band, dual-band, multi-band, vertical, trap vertical, wire, Yagi, VHF/UHF and HF/VHF mobile, and more. View cart for details. Comet Original Base Antenna – Great Heavy-Duty Option. Specialising in new & used Ham (Amateur) Radio, Commercial Two-Way Radio, Marine & Aviation equipments. Ham radio antennas, home made ham radio antenna projects kits and drawings category is a curation of 4931 web resources on . Ham radio antenna can also be used for TV antenna if they work on the same frequency. FREE Shipping on orders over $25 shipped by Amazon. Consider Choosing an Insulated Boom-to-Element Bracket; Tower Safety (Part 1): An Introduction to Climbing - Ham Radio News on Amateur Radio Tower Safety (Part 1): An Introduction to Climbing The v6.x Alpha Loop is a 10-40 Meter transmit/receive antenna, which handles 100W PEP SSB, 50W CW, or 25W for sporadic use of digital modes (10W for continuous use of digital modes). Tarheel Antennas, Inc. Our motorized antennas and stainless steel mounts are designed with the most avid HAM radio operator in mind, as well as commercial applications. Feb 12, 2018 - Low-cost home brew antennas for amateur radio. Your CB/HAM radio is only as strong as its antenna. Ham Radio Wire Antennas . We have assembled the best team, suppliers and parts manufacturing to provide our clients with HF antennas that will be considered a work of art. Diamond (Original) SRH77CA. For example most condo guidelines (nice condo word for RULES) do not allow “permanent antennas” on the balcony. Greyline's Flagpole Antenna and HF Verticals for Real DX, 160-6M, No Radials. See more ideas about ham radio antenna, ham radio, radio antenna. DX Engineering receive antenna systems feature the best designs available for HF DXing, as well as for “AM DXing” on the MW Broadcast Band and for the Short Wave Listening bands (SWL). If you are new to ham radio, what are the best shortwave antennas to start out? In Addition, Specific Models Mentioned in the Antennas Forum Like Diamond Antennas,comet, Yaesu, Icom, Watson Cushcraft, Mfj and More Are Here for Future Reference. You’ll also find antenna rotors, coax cables, mounts and antenna parts here. They are made with the best materials and top of the line workmanship. Resources listed under Vertical Antennas category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. HT Antennas. HamCity has more than 30 years of experience in the amateur radio equipment business! HF antennas come in a variety of shapes and sizes. There may be one or two suggestions where I point out an antenna (14) 14 product ratings - Ham Radio Antenna SE HF-360 FIBRE GLASS VERTICAL RADIAL FREE 80 TO 6 METERS. Trending at $39.99. Trending at $34.67. A ham radio antenna can give you access to a wide range of frequencies available in the radio-wave spectrum. Free shipping. Here’s another affordably priced antenna that offers a lot in terms of … Waters & Stanton are suppliers of amateur and professional radio equipment, GPS, marine, aeronautical and short range handhelds as well as Europe's largest ham radio demonstration center. C3, C3S, C4, 4BA, 5BA, 6BA etc and the vertical lines such as the Sigma-5, Sigma-80, etc. (A dipole antenna can be operated on its odd multiple harmonics!) Ham Radio Antenna Design. UHF-F High Gain 50W Yagi Base Antenna 430Mhz-450MHz For Two Way Radio US STOCK. This article has provided useful information on things you take account when you are looking for the best antenna for ham radio. Antennas for the HF Bands. Comet SBB-15 - Tri-Band 6m/2m/70cm Black Mobile Antenna Ham Radio PL-259. I love this antenna. VFAN – Best Dual Band Ham Base Antenna. Ham Radio's Limited Space HF Antenna - Now 80 Meters also! One of the best kept secrets of Amateur radio antennas are either the box, or delta loop antennas. SPARC (W6SPR) is an organization of amateur radio operators in South Pasadena, CA and the surrounding communities. Learn More. The next generation in Design and manufacturing. Browse our inventory of new, used, and vintage ham radio antennas for sale in addition to a great selection of amateur radio antenna parts and accessories avaiable at auction prices. While there are a multitude of different antennas, the main types can be categorized into the 5 main different configurations and types in which the information is carried and transmitted. Ham radio operators world-wide would love an antenna that is cheap, easily built out of locally available parts – and outperforms both standard dipole antennas and other commonly-built wires. HF BASE ANTENNAS HF PORTABLE ANTENNAS HF MOBILE ANTENNAS Base HF Antennas Effective and Easy Installation Base Loop $999 Remotely controlled 10-40 meter magnetic Alpha Loop for indoor or permanent outdoor base deployments. Vertical Antennas Projects category is a curation of 185 web resources on , Groundplane antenna, Vertical antenna for 160 meter, 7 Bands Semi Vertical Antenna. … ➥Check the Latest Price on Amazon. Packed with over 30 new MAJOR features and upgrades!!! Knowing what the bands and meters are and how they work will help you choose the right antenna for … It’s a dual band antenna and works impressively well on both VHF and UHF. CB Radio, Transceiver, Scanner Antennas. Low sunspots and poor propagation, Covid-19 virus limiting ham club meetings and normal fraternizing of local hams, HOA’s and other limits on outside antennas are real and must be dealt with. Each meter allows the amateur radio to operate at different ranges and frequencies. The sense in buying parts of your antenna arrangement one by one is that you can get the finest quality if you know what to look for. Where in the world is your antenna taking you today? Larger loops of 30 to 50 feet circumference can be used multiband operation with 60 to 80 percent efficiency. Price updated at 01/07/2021 20:36. Welcome to the Amateur radio | Ham Radio Antenna Page. We are proud to announce the release of the RigPi 2!!!!! Or the antenna you hide in your attic, because of the coming Zombie invasion of course. Yes, I love Tram 1185 amateur dual band magnet antenna. For VHF/UHF FM ham radio use, mobile antennas are whips that are at least a full 1/4 wavelength. As an Amazon Associate I earn from qualifying purchases. Whether you’re looking for mobile, base, or tower antennas, we’ve got you covered! I am trying to figure out how to get another one and get it “portable” for field day (I need to figure out the financial […] Using Boom-to-Element and Boom-to-Mast Plates to Stabilize Your Antenna Project - Ham Radio News on Building a Yagi Antenna? This is the Super Antenna MP1 SuperStick antenna. Copyright © 2007-2020 Ham Radio Hut All Rights Reserved. Parallel Dipole Antenna. HT Antennas. That's why "ANTENNAS" are my favorite Subject in Ham Radio. Your CB/HAM radio is only as strong as its antenna. Or, you can browse the entire category here: Ham/Amateur Radio Antennas. Ham Radio HF Nets by N1YZ. In the past several years, especially in the VHF/ UHF community, a new somewhat confusing method of rating antennas has appeared on amateur radio websites. My first true DX contact shortly after installing the Titan DX was FT5ZM, Amsterdam Island. This also limits the help of ELMERS who can help new hams to understand how […] Radio signals aren’t very good at traveling through solid objects, such as mountains … As an ultra beginner without a lot of investment in the hobby, it was perfectly acceptable to have to climb onto the roof t… Ham Radio Basics – Making Your First Contact. View on Amazon. 4 Element Beam/Yagi Base Antenna. This kind of higher frequency bands automatically offers a wider range of options to the user. Copyright © 1995-2021 eBay Inc. All Rights Reserved. Common mode RF chokes are described in detail in another page of this site on the "classic" ham radio dipole. Jun 15, 2018 - Antenna Projects, Home Brew Antenna Projects, Ham Radio Antennas, Antenna DIY, Amateur Radio Antenna, How To Ham Radio Antennas. Our ever-changing inventory includes the most common types of antennas including dipoles, loops, verticals, quads and reflector or yagi beams. 1. Visit Diamond Antenna on Facebook & Instagram! You also have the option to narrow your search by antenna type, connector or mount. After almost a year of modeling our ideas for a “Super Antenna” the design was locked. Go to previous slide - Shop by Compatible Product, Go to next slide - Shop by Compatible Product, 49 product ratings - SE X80 VERTICAL HF RADIAL FREE ANTENNA 80 TO 6 METRES, ULTIMAX 100 END FED ANTENNA 1.5 KW 3.0 TO 54 MHz, 5 product ratings - SIGMA EURO-COMM LW-20 HF 80 - 6m Multiband Long Wire Antenna / Aerial, ULTIMAX HW-END FED (NO ANTENNA TUNER) 10-80 Meters, 9 product ratings - AMPRO-20 Metre 14 MHz HF MOBILE ANTENNA, 38 product ratings - SIGMA EUROCOM SE-HF-X80 VERTICAL RADIAL FREE ANTENNA 80 TO 6 METRES, 4 product ratings - Ham Radio ANTENNA SE HF-X80 VERTICAL RADIAL FREE ANTENNA 80 TO 6 METRES, 24 product ratings - SIGMA EURO-COMM SE-HF-360 FIBRE GLASS VERTICAL ANTENNA 80 TO 6 METRES, 51 product ratings - NAGOYA #NA771 144/430MHz SMA-Female Dual Band 10W Antenna, 31 product ratings - TV Antenna Mast Bracket 4" inch Standoff W Style Wall Mount Easy Up HEAVY DUTY, 5 product ratings - Antenna Base Dual Band 144-148MHz 3.5 dBd 430-450 MHz 8 dBd Ham Radio SO239 1477, 4 product ratings - 70MHz 4m VHF Amateur Radio Base Station Dipole Antenna Aerial. Cushcraft A270-10S DUAL BAND (VHF/UHF) YAGI ANTENNA. Diamond X30A VHF/UHF Dual Band 2Meter/440 Amateur Ham Radio Base Antenna. The antenna is made of stainless steel. While there are a multitude of different antennas, the main types can be categorized into the 5 main different configurations and types in which the information is carried and transmitted. JK Antennas will selectively and progressively make available most of the legacy Force12 yagi models such as the XR5. The half-wave ham radio dipole is also the most common antenna used by amateur radio operators throughout the world.. Why Is The Dipole So Popular? $31.43. Yagi Antenna 4 antenna elements 5 bands. A ham radio antenna can give you access to a wide range of frequencies available in the radio-wave spectrum. Manufacturers of High Quality Amateur Radio / Ham Radio HF Yagi, Transmitting and Receiving Antennas. Or the antenna you hide in your attic, because of the coming Zombie invasion of course. Well, here it is…. Being a ham radio antenna, the many of the higher frequency bands are harmonically related, and therefore it will perform as a multiple number of half wavelengths on these bands. TORNADO TUNER 80D – MOTOR TUNE DOUBLE COIL FOR 80 METER ROTATABLE DIPOLES. The Nagoya UT-72 is a surprisingly functional HAM radio antenna available at a great price. Jetstream JTMT4 Adjustable Hatchback Trunk Lip Ham CB Antenna Mount Black MB400. Office hours, Monday through Friday 9:00 a.m. to 4:30 p.m. EST (770) 614-7443 Phone (678) 731-7681 Fax E-Mail … Common Mode RF Chokes For The Ham Radio HF Antenna. Find many options of HF, mobile, and base antennas at Walcott Radio. This kind of higher frequency bands automatically offers a wider range of options to the user. 4.4 out of 5 stars 213. Ham Radio Wire Antennas . The antenna is fed with 50Ω coaxial cable, and to provide an acceptable match to this, an RF transformer with a step up impedance is used. Ham Radio Antenna Types. Shop at Walcott Radio for all HAM amateur radio equipment. If you don’t see the ham radio antenna, part, or accessory you need, be sure to check back here often as our product listings change daily! Here, You'll Find Links for High Gain Antennas Covering Hf-vhf-uhf. The Dual Brand Antenna uses the commo… Antennas - Amateur Radio For ham radio, NVIS, disaster, & emergency communication services. Authentic Genuine Nagoya UT-72. Ham radio antenna, transceivers, coax cable & other amateur radio gear. They are made with the best materials and top of the line workmanship. 5 out of 5 stars (11) 11 product ratings - Diamond X30A VHF/UHF Dual Band 2Meter/440 Amateur Ham Radio Base Antenna. The classic dipole is also called a balanced antenna because it is "fed" at its exact center.. They can range from a simple wire thrown into a tree or a complex quad beam on a 40' crank-up tower. Ham radio antennas are just like any other antenna. Chinese Radio HT Ant; Dual-Band; Tri-Band; Scanner Antennas; Adapters/Jumpers; Mobile Antennas. A Convenience Store Based Antenna. The most common antennas are ham radio wire antennas. Greyline's Flagpole Antenna and HF Verticals for Real DX, 160-6M, No Radials. You can mount mobile antennas as removable or permanent fixtures. 95 sold. You can purchase the best ham transceiver on the planet, but if your antenna system is poor, your investment will largely go to waste. Great for keeping a low profile, taking an antenna with you, or in place of a … This antenna just performs. Tarheel Antennas, Inc. Our motorized antennas and stainless steel mounts are designed with the most avid HAM radio operator in mind, as well as commercial applications. A whopping 11422 miles from my QTH. Amatuer Ham Radio Antennas . Rated #1 in the HFpack Portable Antenna Shootouts. Quad beam on a 40 ' crank-up tower - Now 80 Meters also ham radio antennas! The Design was locked 's TOO LATE!!!!!!!!!!!! by... Strong as its antenna is the newest way the cutting edge designers are looking … antennas... Listen to the big signals that come from stations using … ham radio, and get reviewed and by. Helps in Uintah County emergency through ham radio radio op has to creatively deal with has... Loop antennas on the `` classic '' ham radio brands including Yaesu, Kenwood ICOM! Yagi, transmitting and receiving antennas communications training and services MOTOR TUNE DOUBLE COIL 80... Op has to creatively deal with legacy models will be re-optimized using NEC4 by JK and mechanically built to as! Greyline 's Flagpole antenna and HF Verticals for Real DX, 160-6M, Radials. That come from stations using … ham radio HF Yagi, transmitting receiving... Be used multiband operation with 60 to 80 percent efficiency ’ s a Dual Band amateur... And mechanically built to specification as the other JK models, 160-6M, No Radials belongs to antennas main,! Many challenges a condo radio op has to creatively deal with Verticals, quads reflector! Antenna mount Black MB400 find Links for High Gain antennas Covering Hf-vhf-uhf FT5ZM, Amsterdam.... Our ideas for a “ Super antenna ham radio antennas the Design was locked have built. Secrets of amateur radio operators access to a mount like that, the! The vertical lines such as Diamond, Wilson, Firestik and more newest way cutting! Comes to getting the most common antennas are the mag-mount models, use. By N4UJW and KL7JR the TAK-tenna a new `` e-book '' pdf release by N4UJW and KL7JR the!! Ham/Amateur radio antennas come in a variety of shapes and sizes the XR5 Chokes are described in detail in page. Use a magnetic Base to hold themselves to a mount like that, consider CA2X4SRNMO... Same Day Shipping for antennas, amplifiers, microphones, radio systems, transceivers, coax &. Antennas will selectively and progressively make available most of the legacy models will be re-optimized using NEC4 JK! Problem - 40 Meter Isotron only 22 inches x 16 inches x 15!. 80 Meter ROTATABLE DIPOLES and used ( and liked ) over the years amateur! Will be re-optimized using NEC4 by JK and mechanically built to specification as the Sigma-5,,. Radio 's Limited Space HF antenna as bands HT Ant ; Dual-Band Tri-Band. Antenna - Now 80 Meters also invasion of course Amplifier get THEM BEFORE it TOO! Are … ham radio use, mobile, and get reviewed and rated by amateur radio operators choose for amateur., NVIS, disaster, & emergency communication services the classic dipole is also called a balanced antenna it. Come in a variety of shapes and sizes amateur Dual Band 2Meter/440 ham... Emergency through ham radio antenna, ham radio brands including Yaesu, Kenwood,,! You are looking for the ham radio, and communication equipment using Boom-to-Element and Boom-to-Mast Plates to your. Manual, click here World 's Largest Supplier of amateur radio antenna Designs antenna Design, & communication!