Search results

JA7KPI windom antenna page

Dimension and formula for a 4 element QUAD antenna for the 10 meters band

This is my simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna.

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 tuner by N4JTE

Pictures of the 160 meters dipole antenna at W5JGV

5 elelents yagi beam antenna for 20 meters band by T93M

G0KYA slim jim antenna for 10 meters band

A design of a 2 m quagi antenna by TA2IB

W5ALT Indoor Vertical Antenna is a base loaded vertical antenna that can be tuned on almost all HF bands by adjusting a big coil. Operating a ham radio station from an apartment in Maracaibo, Venezuela, the author demonstrates effective communication with over 100 countries using a custom-built indoor vertical antenna. Addressing common misconceptions, the design uses a balanced approach with radials and a base-loaded vertical element made from affordable materials. The antenna fits discreetly indoors, covers 6 to 40 meter bands, and achieves acceptable SWR with an MFJ tuner. Despite limited space and typical apartment challenges, the setup enables reliable DX contacts, confirmed by numerous QSL cards, proving indoor antennas can perform well in constrained environments.

8 and 4 elemets yagi beam antenna by N6CA

Inverted V antennas is a dipole with the center raised on a mast and the endpoints near ground. Calculate dimensions online.

Adding an external antenna to the Belkin F5D7050

The Joystick antenna was used many years ago as an all band vertical HF antenna under restricted space situations that would cover from 80 meters thru 10 meters with a tuner and was a great commercial success Some hams even had success with it on 160 meters.

A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.

Online calculator for Cantenna special antenna for 802.11 Wi-Fi bands

An attic indoor antenna successfully implemented by N9RET by using two runs of 2-conductor wire

A Parasitic Lindenblad Antenna for 70cm by Anthony Monteiro, AA2TX. This is the official 16 pages PDF File published by AMSAT about the 70cm Parasitic Lindenblad Antenna.

Active antenna with a frequency response that is flat from 5kHz to over 30MHz

This antenna project came out very nice. It's a rugged homebrew multi-band trap vertical antenna that works the 10, 15, and 20 meter amateur radio bands. The antenna can be mounted on the ground or on a mast. Mounted on the ground the antenna has a low take off angle for working DX. If mounted on a mast the antenna will acheive both a low angle as well as another radiation lobe that has a much higher take off angle.

This very large moxon antenna resonate on 80 40 and 10 meters, has been used for CQWW 2006 by a YU team project

K4TR Manufacture and sell simple dipoles, half square 2 wire phased vertical arrays, end fed zepp antennas, G5RV antennas. 1:1 baluns

Java script antenna calculators for ground planes, half wave verticals, quad antenna, 5/8th wave vertical antenna, dipole and inverted vee antennas

A shortened multiband antenna, about 23m long, for 80m - 10m bands with a low SWR (<1.3) on 80m and 40m, and < 3 till 10m. Bandwith on 80m is 300kHz

VHF Antenna in a lunchbox. The magnetic loop on two metres band Lloyd Butler VK5BR

A new homebrew arial with +- 2.30 m lengt for tuner use only ,6m to 80m made by hans dg7pe

A sample implementation of the C-Pole antenna for the 14 Mhz without making use of the pole.

This article is to describe a multi band DX-dedicated antenna offering a minimum of compromises (such as lossy traps), for the hams not having any high-support

EA4CYQ portable VHF UHF Yagi antenna designed for satellite operations.

&#65279;A light and compact antenna that is easy to build, and easy to find parts for. Band coverage is 60 through 10 meters.

Notes on bazooka antennas by Katunk: a portable field antenna, sometimes called the double bazooka or a coaxial antenna.

Steve G0KYA project of and End Fed 1/2 Vertical

F6DED page of a 2 element beam W8LK antenna with pictures and dimensions, in french

Pictures of GAP Titan DX vertical antenna assembled by IW5EDI

Wound on a 3 foot length of PVC pipe, the long loopstick antenna was an experiment to try to improve AM radio reception without using a long wire or ground.

The Bazooka-antenna was developed by the staff of M.I.T. for radar use. The original Bazooka used coaxial cable for the entire radiating elements.

A small antenna for 2m and 70cm

Hand held portable, 6 meters and satellite antennas

by Harry Lythall SM0VPO

For good Short Wave reception long aerial really is required to dig those distant stations out of the ether.

Prototype of a 80 meters helical antenna on a 6 meters squid pole by VK2TTL

10 to 20 meters band log-periodic antenna project with SWR Plots, boom lenght and element spacing.

Lincomatic's Homebrew WiFi Antennae, Cantenna, Toothpick Monopole, Patch Antenna, BiQuad, collinear wifi antenna all in one page

One of the most important considerations when designing and building a Yagi antenna is the method used to attach the elements to a boom. This is true because the boom influences the electrical length of the elements. In this article JH Reisert explain with drawings techniques on mounting yagi antenna elements to a boom

IK4DCS experience on maintaining a multiband delta loop antenna for 10/12/20 meters.

The basic antenna is a vertical monopole, using elevated radials to complete the ground plane by k5oe

Mobile antennas, loading coil current, and loaded antennas. efficiency and electrical rules. Loading inductors used in mobile HF antennas.

Here are construction plans of a Turnstile antenna that can be used for space communication on the 2 meter amateur radio band. Specifically for 145.80 mHz

Plan for a log periodic antenna for the 14Mhz-30Mhz by F6DOP in french

manufacturer of VHF and microwave antennas and related products, from 50 MHz through 10 GHz

Also known as W0MHS Loop Skywire or Full Wave Loop Antenna, here you can find N1SU interesting observations on this antennas.