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Query: Antenna
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- Antennas > 20M > 20 meter Dipole Antennas
- Antennas > 20M > 20 meter Vertical Antennas
- Antennas > 20M > 20 meter Yagi antennas
- Antennas > 40M > 40 meter Delta Loop Antennas
- Antennas > 40M > 40 meter Dipole Antennas
- Antennas > 40M > 40 meter Loop Antennas
- Antennas > 40M > 40 meter Magnetic Loop Antennas
- Antennas > 40M > 40 meter Vertical Antennas
- Antennas > 40M > 40 meter Yagi Antennas
- Antennas > 6M > 6 meter J-Pole Antenna
- Antennas > 6M > 6 meter Moxon Antennas
- Antennas > 6M > 6 meter Yagi Antennas
- Manufacturers > Antennas > HF > Active antennas
- Software > Antenna analysis
- Manufacturers > Antenna Analyzers
- Radio Equipment > Antenna Analyzers
- Antennas > Antenna Books
- Antennas > Antenna Calculators
- Antennas > Theory > Antenna Gain
- Technical Reference > Antenna Launcher
- Manufacturers > Antenna Launcher
- Manufacturers > Antenna Masts and Mounts
- Shopping and Services > Antenna Mount
- Manufacturers > Antenna Parts
- Shopping and Services > Antenna Parts
- Technical Reference > Antenna Rotator
- Manufacturers > Antenna Rotators
- Software > Antenna rotor control
- Technical Reference > Antenna Switch
- Manufacturers > Antenna Switches
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This Antenna project is a bit more complex than other omni antennas for satellite use, but it is much easier and cheaper than a standard tower mounted circular polarized azimuth and elevation rotating beam system. -
This simple beverage ntenna is easy to make, easy to setup, and it offers great RX performance. -
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We all think we know about it, we all think we need it, but what is it really? -
A monoband delta loop antenna for the 7 MHz. This vertically polarized DX Antenna is a full wavelength sngle side antenna and has a total length of 42.3 meters (137,1 inch) Can be easily setup with a flag pole or fishing pole as center top mast. For optimal performance lower side should be at 2 meter above the ground. This antenna offers a low radiation angle and 1 DB Gain. -
The SARK-110 is a completely new design concept for an Antenna Analyzer. This is a truly pocket size device, so you can take it anywhere. It offers a gorgeous 3" high-resolution, active-matrix color display that allows information-rich diagrams, works from 0.1 to 230MHz -
How to improve your transmitting antennas for very low solar activity periods, vertically polarized 160 meter antennas, horizontally polarized 80 to 10 meter antennas, single or stacked yagis, multi-tower stations -
Distributed Antenna Systems technology used for gaining better coverage and using a lower power. -
An article explaining features and characteristics of amateur radio log periodic antennas -
Consider installing a stealth vertical loop antenna if you live in a place with no antenna restrictions. Full wave loop wire antennas allow you to be on the air without installing evidente external aerials. -
Isotron antennas are antennas of reduced size, without tuning. On 40 and 80m band, it is made of two plates into v whose angles are connected by a coil. In this article the description of a home made realization for the 40m band. -
Smart antennas or the adaptive antenna array and smart antenna technology used with SDR, cognitive radio, MIMO, and other new technologies. -
Online calculator for J-Pole antennas. The J-pole antenna consists of a short and a long vertical pole with a feed point near the bottom. The antenna looks like the letter J, hence the name J-pole antenna. -
In this article, K8CU describes his custom design that uses an embedded controller and touch screen LCD panel. -
Main High Frequency Antennas from the 2009 LARC FARL Field Day, Ford Amateur Radio League. A document comparing antenna performances and flexibility among a G5RV an Carolina Windom and a Cushcraft R7 vertical antenna. -
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Relevance of a proper ground systems on short HF vertical antennas, with an analysis on a vertical antenna for 160 meter band -
Simulation of a top loaded vertical antenna for 1.2 MHz -
This antenna is a vertical loop antenna mounted on a 8 meters high grounded mast with an input impedance of 50 Ohms without a matching device -
A page describing how to setup a magnetic loop antenna with the DIY Magnetic Loop Starter Kit produced by Chamaeleon Antenna. Includes a video and a detailed instructions to setup. -
The Horn reflector antenna at Bell Telephone Laboratories -
Antenna Manufacturer of Base station antennas, Colinears, Yagis, Whips, Portable, Handheld, PCB and Embedded Antenna Modules -
The receiving antenna setup for the top band, made with a 9 elements vertical antenna array, remote controller and remote relais. -
The webpage discusses metal fatigue in antenna elements for radio amateurs, offering construction tips and techniques. It covers theory, tricks, and the use of baluns and coils. -
Notes on an optimum Portable HF Antenna, a comparison of MFJ927 and SGC239 autotuners, and a 31 ft. vs 43 ft. vertical by VE1ZAC -
A test with a superantenna MP-1 on a tripod operating HF bands on 40 20 and 17 meters band -
A summary, overview or tutorial covering the basics of Meteor Scatter or Meteor Burst Communications, a form of radio signal propagation often used at VHF. -
Elk Antennas to give the Ham log periodic antennas with the best gain, directivity, and front to back ratio possible for the size and price. -
Near Vertical Incidence Skywave propagation is a form of radio wave propagation used on the MF and HF bands to provide radio communications and broadcasting coverage over short distances, especially where the terrain contains obstacles. -
If you like building good antennas, this one is for you. The J-pole is a slim, omnidirectional, half-wave antenna fed at the end through a quarter-wave shorted transmission line. Its predecessor is the famous Zepp antenna developed for the Zeppelin airship. -
The folded dipole antenna or folded dipole aerial is widely used, not only on its own, but also as the driven element in other antennas like the Yagi antenna and various other types of antenna. Folded Dipole Myths, Bandwidth and details on folded dipoles -
Observing how fractal antennas might exhibit characteristics that are correlated to their form by kb7qhc -
Profesional GPS, GSM, Telematics, Yagi, WIFI antennas by 2J antennas -
A great and efficient monoband VHF portable antenna. The article consist of two version of a 12.5 Ohm 3 elements yagi beam antenna plans for the two meter band, a full sized and a shortened version expecially designed for the SSB and CW on 144 MHz. -
It is possible to detune the tower so that, at least on one band, the tower can be made to effectively disappear. That is, become non-resonant on the band of interest. This allows the vertically-polarized low-bands antenna to meet its potential. -
A multiband J-Pole antenna project that cover 144,220 and 430 MHz. The articles includes several pictures of this multi-band antenna, including handmade schematics and diagrams, project is mainly in Italian -
The Japanese-made Maldol MFB-300 HF vertical antenna offer extremely wide-band performance, with a specified frequency range of 1.0-60 MHz. -
A brief review of the TW2010L Backpacker Antenna. This is a portable vertical antenna covering 10,12,15,17 and 20m -
An interesting article focused on defining the optimal lenght and number of ground radials in vertical, inverted-L, end-fed antennas. This article compares also the radial length vs number of ground radials to power loss in transmitted power. -
Article on Yagi and Log periodic antennas by Tom, K1JJ -
A 2 elements yagi beam for 12 meters band with liear load -
A quad turnstile consists of two cubical quad loops oriented in a diamond configuration and angled 90 degrees apart from one another with both diamonds sharing the same top and bottom points -
An antenna for 80 meters band for those who does not have enough space to setup a halwave wire dipole that is aprox 130ft or 40 meters. The antenna is an open-wire-fed shortened dipole -
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This air-powered Tennis Ball launcher is designed to launch tennis balls over trees towing fishing line. -
A trapped multi band end-fed-half-wave antenna for 40/30/20/17/15m. -
Article on antenna feed impedance and the importance of matching RF andtennas to feeders, including notes on Radiation resistance, loss resistance, and efficiency are also detailed. -
An interesting guide to aerials comparing height, gain and angles -
MFJ-971 Portable Antenna Tuner Modifications adding a bypass switch and increasing inductance to tune on 1.8MHz -
A classic document originally presented in Proceedings of the Institute of Radio Engineers in 1937 and is, still today, the standard referenced by the FCC, text books and many amateur radio publications.