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Query: Antenna
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Categories
- 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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The broad band hexagonal beam (hexbeam) designed by G3TXQ and built by K4KIO -
With the view to establish a quick and easy multi-band antenna deployment for portable and camping operations a simple long wire antenna with an earth or earth plus counterpoise arrangement with a 9:1 voltage unun including a tuner or simply with a tuner is one possible solution. With the 9:1 voltage unun and wire lengths suggested in the below tables the antenna should present non extreme impedances for all HF amateur band frequencies. This page is far from complete and represents the ongoing investigation into this type of antenna. Experiments to date seem to have raised more questions than obvious answers. -
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Antennas for asset tracking, navigation and remote monitoring GPS, GSM, GPS/GSM, Satellite Radio, WLAN -
The AB2RA bowtie 80 meter antenna includes also a 40 meter dipole -
A comparative article on performance differences between Slim Jim antennas versus J-Pole antennas -
A home made ZS6BKW multiband antenna includes the construction of the plastic support for the ladder line -
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Trap-style Inverted-V Antenna for 3.5, 7, 14, 21 & 28 MHz -
The vertical Double-Zepp 2x7 m is a very simple, effective 8-Band-antenna. The end of the Dipol must be 5-10 m above the ground -
Build the Slim JIM Antenna, a unique VHF Antenna with gain over a J-Pole Jose I. Calderon, DU1ANV -
This is another alternative home-brew center connector for a dipole. The parts used are common PVC accesories found at the home supply store. -
An antenna for shortwave radio broadcasting consisting of rows and columns of dipoles, is a high gain directional antenna, designed for medium and long range communications. -
Constructing a Compact Low Cost Sprinkler Valve Antenna Launcher -
A homemade 70cm handitenna made with a PVC pipe -
Testing performances of indoor antenna. A comparison of a magnetic loop antenna vs a classic wire dipole done using wsprlite on 30 meters band. -
Are the lengths of antenna radials related to the height of a vertical? By N6LF -
High impedance amplifiers for shortened vertical antennas, Array matched and Optimized 15dB Preamplifier -
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Loop Antenna Basics and Regulatory Compliance for Short-Range Radio -
Magnetic Loop Antenna for 20/15m with Remote Tuning by George Szymanski -
Experiences by EA5XQ on setting up indoor antennas and in particular delta inverted antennas with 300 ohms TV cables. -
This antenna article is geared towards new Hams and antenna builders looking for a very inexpensive 6 band antenna that can be efficiently fed with 50 ohm coax without a tune -
Refurbishing a Cushcraft A3S, by George Szymanski, DU1GM -
Building a Windom HF Antenna. A PDF file presentation about homebrewing a windom antenna for the HF bands with formulas for 40 and 80 meters bands and step by step guide on making a 4:1 balun to feed the antenna. -
Useful hints & tips on building a 10 and 17 meter Moxon Antenna -
The HyGain LJ-153BA a monoband 3 element Yagi, designed for the 15 m band 21.00 - 21.45 MHz -
Discussion at eham about wire size used in wire antennas, and how it affects the gain of the antenna -
Since they were first described by the French mathematician Benoit Mandelbrot in the mid-1970s, repeating geometric figures known as fractals have fascinated computer scientists, mathematicians and graphic artists. -
A directional active loop receiving antenna system by J A Lambert G3FNZ article published on Radcom in november 1982 -
Description and simulation of two types of rhombic antennas, using the software 4Nec2: the simple bi-directional and the terminated directional rhombic antenna -
Integrate the LDG Pro II antenna tuner into the 897 batteries compartment by K2COW -
A nice post on Make: on homebrewing a multiband antenna for amateur radio portable operations -
Based on a simple project based on a 2 elements Yagi for 20m band, and then becomed a triband yagi with a open-sleeve feed system -
Experiences with Loop antennas at G3YMC include some loop antenna tests and theory by G3LHZ -
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A ten element ultra-lightweight yagi beam antenna for 144 MHz based on YU7EF design concept -
Do you want to measure antenna impedance at resonance? With this Antenna Scope, you have a simple RF Bridge for getting started in an exciting part of Ham Radio, building your own Antennas that work well -
A new beem antenna design improvement over the cubical quad -
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ITELITE manufactures omnidirectional, sector and directional antennas 900 MHz 2.4 GHz 3.5 GHz 5 GHz 5.8 GHz antennas. -
How to build a QFH (Quadrifilar Helix Antenna) to download images from weather satellites. A complete tutorial on assembling QFH antenna at home with simple and common tools -
The Patch Antenna Array was constructed and used for various satellite up and down links at my previous residence in Melbourne, Victoria from 2003 - 2007 -
A magnetic loop antenna for the VHF band, featuring a high gain that can be compared to a quarter wave vertical antenna -
Stop common-mode current when transmitting with an end-fed antenna. Unbalanced antennas are very prone to currents on the outside of the coax. -
Here are 10 tips and truisms that every ham should know about antennas, by W20QI -
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This article describes the design and simulation of a multiple dipole antenna for the HF band, using the software MMANA-GAL. The antenna will be designed to operate in the 10, 20, 40 and 80 m bands