Search results

Diamond W8010 Multiband Dipole Modifications

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

Building a Resonant Feed line Dipole for 2 Meters

Construct a compact, 20 meter rotatable dipole antenna of durable weather worthy components supported at a single point obviating the need for multiple supports and multiple support ropes crossing the yard.

An off-center-fed sleeve dipole, made of CPVC and aluminum foil tape by KV5R

The fan dipole antenna as an alternative to the paralled dipole antenna, to achieve a larger bandwidth and a better tuning by decreasing elenment influences.A project based on the W6HDG original concept.

kv5r 2 meter antenna

Modeling compact 160 meter antennas, inverted L, half wave dipoles and linearly loaded dipole

A wire antenna feeded with an unsymmetrical feed and a 1:4 balun can be tuned from 6 to 80 meters band but can be noisier than a dipole and cause RF in the shack

22 Different Wire Antennas for the 160 Meter Band, Random Length Radiator Wire, delta loop, loop antennas, off-centered antennas, sloper, dipoles, Z antenna, Zepp and Clothesline Antennas

An excel spreadsheet that in a really simple way checks how much to trim your antenna elements. Download the xls file and watch the presentation video include in this page

GM3MCK Central dipole insulator for inverted V dipoles

Setting up a new antenna Mast for dipoles at VE3VN

This simple antenna modelling windows software by F5IMV wil calculate a dipole,extended double Zepp,G5RV, ZS6BKW and many other wire antennas by F5IMV

An unconventional antenna family, the VHF/UHF Zigzag Dipole Antennas. Design, theory and practical construction, transformation and balancing with a half wave balun.

Experimenting vertical wire antennas for 40 and 20 meters supported by balloons resulting in excellent gain in RX and good overall performance against horizontal dipole

Common antennas for portable use compared. A vertical antenna, a dipole antenna an inverted V and a fan dipole all at same height.

Dipoles at the correct height are not only stealthy antennas, they work great

A parallel multiband wire dipole project

The T-Match with its balanced feed point is one method of feeding a Balanced Dipole.

An economical dipole for simple QRP HF homebrew rigs

This page provides information on building a short dipole antenna for the 60 meter tropical band. It includes details on the construction of the antenna using 12 meters of wire divided into four sections. The page is aimed at experienced shortwave DXers and radio hobbyists looking to improve their antenna setup for better DXing performance.

The N3UJJ antenna project,parallel-cage dipole a multi-band horizontal antenna, without the need of an antenna tuner.

Theory and origins of W4RNL Asymmetrical Hatted Vertical Dipole AHVD for portable operations.

Study of the Coaxial Dipole: Just how does this thing work.

A comparison of the buddipole antenna versus a wire dipole done on 20 meters band

A small dipole antenna installed inside a balcony. This linear loaded short dipole antenna has been designed at first for the 21 MHz and then adapted for the 20 meters band.

Antenna modeling discussions about What happens if... a dipole is bent horizontally, laterally, vertically. Zig-zag, meander, catenary curve. Effect of sag, elevation, radials. OCF off-center feed, harmonics. Includes 4NEC2 antenna models for each study.

Maltronix, HF antennas, dipoles and verticals, switching power supply, power distribution, antenna switch

A page descibing the principles of OCF antennas also known as windom antennas by DJ0IP

Experiences with the end-fed dipole based on the concepts presented by J. Taylor in an article titled RFD-1 and RFD-2: Resonant Feed-Line Dipoles in QST. August 1991.

Home made wire dipole on a lenght of 30 meter 98.4 ft by PE1OPM

Amateur 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

Slot cubes are folded skeleton slot antennas with widened, folded dipoles bent into a cube to reduce size. QST Article 12 2019

There 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.

Listen to the online web sdr in Rome Italy. A kiwisdr project using a vertical antenna and dipoles for HF bands.

This article describe the principles of baluns when referred to devices used to balance unbalanced systems, like a coax cable and a dipole antenna

An article on RFD antennas, resonant feed-line antennas

A review of some portable antennas for SOTA operations, including linked dipoles, end-fed, verticals

A review of the Buddipole Deluxe Antenna portable HF VHF ham radio antenna

This handy and cheap portable dipole can be folded and backpacked, carried in use, and adjusted to a very wide range of frequencies.

About windom antennas and OCF dipoles, tricks on covering more bands moving feed-points and potential problems. Problems caused by common mode currents in OCF dipoles

Homemade dipole antenna for portable use

The Vertical Buddi Beam on 20m using no Coils. n this article I am going to describe a totally new way to construct and use a very old design the two element Yagi antenna. Unlike the traditional Yagi this design does not require a Tower or a boom, it is 100 percent portable and most important high- performance and easy to assemble using standard Buddipole components.

An easy to build dipole for 21 and 14 MHz with traps made by two T50-6 toroids cores mounted on a simple PCB foil

This article describes a unique copper pipe fan dipole that the author home made and that provides fantastic results.

Two find dipoles one for 75/40/20 and the other for 20/15. These 2 dipoles are at right angles to each other and the 20/15 dipole is located about 6 feet below the 75/40/20 fan dipole.

This dipole is composed by a coaxial structure and non-folded dipole made from two open conductive cylinders, and benefits from the stub compensation of a folded dipole by passing an insulated wire through the axis and connecting it to the ends of both limbs. By G4CQM

A report on working a CQWW SSB on 40m with a vertical buddipole antenna

US amateur radio antenna manufacturer. Produce baluns, delta loops, dipoles, ocf antennas and more