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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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Helical antennas have long been popular in applications from VHF to microwaves requiring circular polarization, since they have the unique property of naturally providing circularly polarized radiation. Paul Wade W1GHZ -
This HALO design is not ground dependent and can be mounted atop a section of PVC. -
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Various publications through the years have shown how the SWR measured on a shorted (or open) feed line can be used to calculate feed line attenuation -
By Guy, de ON6MU, At VHF, both the 1/4-wavelength monopole and the 5/8-wavelength monopole antennas are widely used. -
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A 4 way remote antenna switch project -
A 10 meters band Slim Jim antenna project, made with a 450 Ohm slotted ribbon cable and secured on a 8 m fishing pole, by Steve G0KYA -
W4ZT used this antenna for Field Day and other portable applications. He built them for all bands between 160 meters and 6 meters. You can make them easily using whatever wire you have available and make the insulators from scrap plastic -
The Truth about the G5RV Antenna, how to optimize the design to be more efficient on all bands -
There is considerable confusion as to what exactly a multiband vertical antenna is. The confusion concerns the method of feed, how much mismatch one can expect, how many radials are required, how the particular antenna is built for multiband use, plus some other points. -
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The WT0G crazy W dipole, a solution for 160 meter operations -
A moxon antenna project for 70 cm band, test and results of this popular antenna model applies to UHF bands. -
Antenna mounting height, the higher the better? Learn how radiation pattern change, and decide if you need an higher or a lower angle for your dx needs. -
A 2 element yagi wire-beam antenna for the 20 meter band based on the KJ5VW design -
Lowering an NVIS or N.V.I.S. antenna very close to the ground enhances NVIS operation -
This antenna was described by Bill, G4KIH in Sprat 52 and is actually a G5RV modified to fit into a small space. -
The antenna was designed for installation in a field conditions or limited space. Antenna may be installed at a low- height mast. Antenna does not required guys and takes small room for installation. -
A vertical portable antenna system by W0SJS that will work on 40, 30, 20, 17 and 15 meters -
A project of a semi vertical trap antenna that can be tuned for 7 bands -
A project of a vertical and wires that generate a multiband antenna for 28 14 10 and 7 Mhz in french -
Antenna tests on Alford 1.2 Ghz for ATV oprations in italian -
A compact halfwave endfed wire antenna tuner that works 12 thru 40 meters with a halfwave wire for the band of interest attached -
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A monoband J pole antenna dimensions sheet by N6JSX -
Putting up wire antennas is always a fun proposition. Sometimes it is fun for the participants and often fun for on-lookers. There are at least as many methods as there are folks putting up antennas. -
Review by G3TXQ and comparison to its modificated versions. SWR Measurements on inverted V setup and comparison from EZNEC model and a real one. -
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A 160 meter antenna with a base loading coil used to tune the two lower frequency segments of the band. -
The SARK100 Antenna Analyzer it is yet another antenna analyzer but available in kit form and designed to be easy to assemble and with an affordable pricing. -
The Pocket Loop is a small magnetic loop antenna designed for a carry anywhere operation, it disassembles in 33 centimeters pieces that can be carried even on an attach handbag. -
This was an investigation into whether an inverted V dipole could be fed offcenter to work on 20, 17, 15, 12, AND 10. -
A club project experiment about a vertical Moxon antenna for 20 meter band -
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A brick, some PVC tubing and a few other common hardware store items can be transformed into an effective Quick and Dirty RF-launcher for less than $25! By Michael Atlas, N7FC -
K9AY 160M / 80M Receiving Loop Antenna System by K7SFN -
A 4 element Wire Yagi antenna design for the 40 meters band -
Lazy H Antenna, Bi-Square, Sterba Curtain, HR, HRS, and USIA Curtain Antenna Arrays at W8JI -
80M field expedient antenna, suitable for NVIS operations -
A simple & effective antenna pre-amp for 10m. Band (28-29.7 MHz) -
How to homebrew a ENVIS antenna for 80 and 40 meters band -
Antan is a homemade antenna analyzer project by F6BQU -
50 MHZ Moxon antenna based on the KG4JJH design with some slight modifications in the construction -
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Quad and loop antennas comparisons, evaluating the impedance and gain of both antennas and considerationso n horizontal loop antennas for low bands by PA0FRI -
Article on mobile ham radio antenna setup -
Based on original G2BCX design this J-Pole antenna for the six meter band is made with a homemade ribbon cable. The antenna shown in this article includes a coaxial cable choke feed to remove RF currents from flowing on the outer of the cable. -
How to Build a ZS6BKW Antenna, an optimised version of the popular G5RV multiband Antenna, basically a random length dipole with a 450 Ohm ladder line acting as a 1:1 transformer by VK4MDX
