dual gate fet

80/160 Dual band vertical - This 80/160 meter antenna is constructed from six 12 foot aluminum tubes to form a slip-up mast antenna some 60 feet high by K0RWU

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

F5DQK Vinecon 6N4 - A dual band antenna for 50Mhz and 70Mhz with lots of pictures and diagrams by F5DQK

The YU7EF Duo Band Antenna - The original project of a dual band yagi antenna for 50 and 70 mhz, published on dubus 2/2007 by YU7EF

G7CNF dual band yagi for 4 and 6 m - A 5 Element dual band, single feed solution for 4m and 6m built by Nigel Coleman.

An active antenna - Project for QRP operations by George Dobbs G3RJV

Dualband EH Antenna - A detailed project of a dual band EH antenna by F5IXU in french

The versatile end-fed wire - Benefits and limitations of an end feed antennas. By Peter Parker VK3YE - first appeared in Amateur Radio, June 1998

J Pole Antenna - Dual Band (2 Meter/70 cm) Solid Aluminum J-Pole

HF antenna for high rise dwellers - If you have ever tried transmitting on HF from a tall block of apartments, where it's just not possible to erect a substantial aerial system, then this article is for you by Mel G4WYW

Antennas for the Space Restricted - This article shows that it is possible to operate successfully from a confined space with antennas for 2 10 and 80 meters band

Gunnar Olsen Study : Towers Collapsing - This study is of guyed tower failures and collapses to investigate what a typical tower fall radius would be.

Central Ohio Amateur Radio Emergency Service - Our Mission: To provide emergency communications to central Ohio public safety, emergency, health, government and relief agencies in times of disaster.

The Toronto Marine Ham Radio Club - Whilst Amateur Radio has a great history of invention and service to both business and the general public as a whole, this website is dedicated to the sailing fraternity with the primary objective of providing information and training facility as it applies to “Safety at Sea through Wireless Communication”.

Muskegon County Emergency Communication Service - Provide communication service primarily to the public safety organizations

Amateur Radio Online - Ham Radio Auction Gateway - Ham radio ebay auctions, amazon affiliate bookstore and more

dstar_digital : D-Star * Digital - An International discussion group for D-STAR Digital Amateur Radio. Radios, Repeaters, Gateways, Internet, Setup, Mobile and Portable radios, Cloning Software, icf files,

Butte County California Public Safety Scanner - Live scanner feed from Butte County, paradise/upper ridge, chico , california public safety

Chevron Morse Keys - Each key is individually numbered and has been built by either Kevin M0AGA or retired master engineer Alan G4HCD to exacting standards.

A Guide to Test Equipment - That just about sums up many peoples’ attitude towards test equipment. Multimeter, SWR/Power Meter, Dip Oscillator, RF Signal Generator, Cathode Ray Oscilloscope

West NewYork Scanner Guide - The western new york amateur radio and scanner guide by the lancaster amateur radio club in PDF file

How to make an APRS IGATE - How to make an APRS IGATE using Linux, soundmodem and aprx by HA2NON

Low power VHF RF amplifier - Low power VHF RF amplifier with VMP1 Mosfet by IZ1BTS IK1XPD

2 Meter GaAs FET Preamp - KD9JQ 2 meter GaAsFET preamplifier by KD9JQ

Simple test equipment to build - A field strength meter, a crystal tester and a capacitance meter by Peter Parker VK3YE