This is the InnovAntennas 18el 2m/4m dualbander prototype on test at G8FJG. This antenna has 7 elements on 4m and 11 elements on 2m on a 4.5m boom
If you have ever operated any sort of transmitting equipment, you’ve probably heard about matching an antenna to the transmitter and using the right co-ax cable
M0PLT, a member of UKQRM and EURAO, started a Petition on the UK Government and Parliament website asking to amend the law to exempt all licensed Radio Amateurs (and C.B. radio users) from requiring planning permission for their aerials
Efficient Low Band Counterpoise for Restricted Circumstances Loss Avoidance Opportunities and Techniques for the Low Bands
The short and linear FCP was designed to reduce ground losses from inadequate radial systems beneath inverted L and other vertical antennas.
To compliment their range of excellent HF aerials, (I use one, the’re good, they work – G8YPE), M0CVO offers a selection of VHF and UHF antenna. More information on their website [su_button url=”http://www.m0cvoantennas.com/apps/webstore/products/category/1494822?page=1″]M0CVO Webshop[/su_button]
This 4m dipole was designed as a club project for the Phoenix Radio Club to use with a bulk purchase of 4m converted “PMR” radios. No claim is made as to the originality of the basic design- a dipole is a dipole- although the design has been engineered for easy assembly and to give repeatable results.
Antennas/6MThis simple project, based on the orginal CobWebb-Antenna model, is about an horizontally polarized, omi-directional antenna for the six meter band….
Antennas/70cmA 70 cm yagi antenna design by YU7EF includes tables with antenna elements dimension and spacing.
This UHF Yagi antenna plan provides a maximum gain of 17.93….
Antennas/Homebrewing TechniquesWhy build antennas out of copper and not aluminum or stainless steel. Selecting the best metals for antennas evaluating the conductivity factor….
Antennas/SatelliteModified 80cm Offset Dish for 2.4 GHz Satellite Reception. This 50-ohm impedance antenna allows, when connected to 2.4GHz preamplifier and downconverter, to receive Amateur satellites with 2.4GHz transponders such as AO-40….
Antennas/160MAn schema drawing and formula to calculate size of an Inverted L antenna for the 160 meters band, 1.84 MHz….
Antennas/PortableThis article describes a project of asymmetrical hatted vertical dipole, a portable antenna that can be used for field day operations, sota, campings or even for fixed installations. This is a freestanding 20-10m antenna that is really easy to build, easy to tune and relatively easy to carry….
Antennas/Fan DipoleThere are a large number of antenna designs for HF. One choice out of many is the fan dipole. The ability to transmit of multiple bands without needing a tuner (and even more with a tuner) is a very desirable factor in choosing a versitle antenna for HF….
Manufacturers/Antennas/VHF UHF Microwave/Vertical AntennasHand-tuned, J-Pole Antennas. The James Pole Antenna is constructed of 1/2 inch Type M copper pipe, soldered together and capped on both vertical elements. Each Antenna is tuned for center frequency….
Five best homebrew fan dipole antenna projects easy to build. The fan dipole antenna is a simple wire antenna consisting of multible monoband dipoles sharing a single coax feed line….
Antennas/Fan DipoleThe antenna in this project is a modification of the techniques used to design a multiband fan type dipole with little or no tuning involved having a total space of 105 feet…
Antennas/Fan DipoleAmateur Radio 40m 20m 15m Half Wave Fan dipole antenna project with part list, pictures and drawing. Includes the option to expand the antenna to cover the 80 meters band…
Antennas/VHF UHFTape measurement yagi. The longest part is 530 mm, easy fit to your backpack. Very easy and fast deploy. Great for SOTA and portable operation. Can be used in horizontal or vertical polarization. Based on DK7ZB design…