grid dip osc.

Rotary dipole for 12/17 meters - A home brewed rotary dipole antenna for 12 and 17 meters band with pictures and construction details

An effective 3 band Wire DX aerial - A 3 band dipole for 10 15 and 20 meters band by Mel G4WYW

Rotary Dipole for 30 and 40 meters band - Drawings pictures and notes on a rotary dipole antenna for 30 and 40 meters band

A centre-fed co-axial dipole for 4m - Easy to setup dipole antenna for 4 meters band by Tony Hawker G4CJZ

Six Metre Portable Dipole - A portable dipole for six meters band

QRP 80 Metre Slinky Dipole - M0WYM slinky dipole setup into an attic.

Coaxial cable dipole for 80m - Here are some simple antennas you can build along with calculators to help you get the right length.

Dipole and Inverted V Antenna Calculator - Enter the resonant frequency for the dipole/vee antenna calculation

WB4BXW Diople Antenna Calculator - Dipole and inverted vee antenna calculator sufficiently accurate for wire antennas up to 30 Mhz

Dipole Calculator in JavaScript - Input the desired resonant frequency and it will calculate lenght in inches feet and meters

W4HN Antenna Calculator - Calculate your dipole, 3 element yagi and a simple dipole

Short 40m dipole - The GM4JMU Shortened 7Mhz Dipole

K0RWU Multiband dipole 6-17 meters - This antenna consists of 4 resonate dipoles made from 12 insulated copper electrical wire. The dipoles are resonate on the following bands: 6 meters, 10 meters, 12 meters and 17 meters.

The Galaxy dipole - A very short dipole with a good radiation efficiently plus a respectable bandwidth by S. C. Chuck Smith, WA7RAI

Mobile 10/80 dipole antenna setup - A mobile setup using a dipole antenna for 10 to 80 meters band in italian

Multiband HF antenna - A multiband hf antenna for restricted spaces covering 80 40 20 15 meters Based on the VK2ERG shortened 80M dipole

An Improved Multiband Trap Dipole Antenna - This improved multiband trap dipole introduces a new trap design and a change in trap location. The antenna features double-coaxial-cable-wound traps having lower reactance and a higher quality factor (Q) than earlier coax-cable traps by W8NX

KE4UYP One wavelenght loop antenna - A Loop antenna plan with a gain over one Dipole of 3DB or 5.15DBi

The Grid Yagi for 144 Mhz - The Grid Yagi (or Grid Quad) is a high performance yagi antenna that can be built with readily obtainable inexpensive materials. Described here is a 6 element 2 meter version with a boom length of about 1 wavelength, shown

BiQuad Antenna for 144/440 - This is a vertically polarized Broadside and Collinear Array each Loop is a vertically polarized Broadside Array both the right and the left side of the Loop is a bent 1/2 wave dipole working 180 degrees out of phase with the other one and that gives you 4.15dbi of gain by KE4UYP

The CQ DX Field Award - The CQ DX Field Award is issued in four categories—Mixed, CW, SSB, and Digital—for confirmed two-way contacts with 50 or more Grid Fields

Costa Rica Awards - Radio Club de Costa Rica

Operating from a scooter - Activities from a scooter by IK4DCS using a dipole

iLocator for iPhone - A small application for Apple iPhone that calculate grid locator from gps, wifi or gsm cells by IW2BSQ

Grounded Grid Amplifier - Picture of a power amplifier, made using of GI-7B triodes by Bob Briggs, VK3ZL