6 meter amp

PV6 Yagi antenna - 6 elements yagi beam for 15 meters band, by T73M

Delta-Loop for 40 Meters - Two-element Parasitic Delta-Loop Array for 40 Meters by WB3HUZ

Quad calculator  ^{updated  pop} - Cubical quad antenna calculator in java script

Cubical Quad Antenna Design  ^pop - By N6VNG, can be used to determine the element lengths and the gamma match values for different frequencies, includes link to excel files with formulas to dimension your quad antenna.

SWL home made antennas  ^{updated  pop} - Short guide to home made antennas for shortwave reception, in pdf format

160 meter sloper antenna - The 160-meter sloper system at K3LR

2LD751 Andy Priority listing - Webpage of Andy, 2LD751. Includes links to some good 11 meter related stuff. Updated often.

QSL-info.com - World's largest QSL manager database woth 106000+ calls signs online.

National RACES web site - US national radio amateur civil emergency service web site

A.D.R.I. 38 - Ham radio web site of the Association Departementale des Radioamateurs de l'Isere. Many links, forum, technical pages, adds, QSL, F5KGA, Grenoble...

Tampa Amateur Radio Club - Since 1922 Tampa's largest Ham organization. Dedicated to hams by hams. Classes in theory, code, and experimentation are a regular event.

Central New Hampshire Amateur Radio Club - ARRL special service club

MaCo Antennas - Maco Manufacturing, HF Antennas, gamma matches, cable assemblies, power supply, swr meters, watt meters

I.C. Engineering - Electromagnetic field strength meter

Ten Tec  ^pop - HF, VHF, transeivers kit's, amplifiers and more.

Autek Research - Autek Research make three models of RF Analysts, power and swr meters

Diamond Antenna  ^pop - Base station and repeater antennas, mobile antennas, ,multi-band HF antennas , handheld transceivers, receiving and scanner antennas, power meters, swr meters, power supplies, coaxial switches

Italian airport frequencies  ^updated - List of italian airport frequencies

SQ6CWP QSL Cards - Full color QSL cards from Poland

RCOM for Linux - Terminal program for serial device.

PSK31 by G3PLX - PSK31, version 1.06 by Peter Martinez, G3PLX

Pathfinder - A free application that searches more than 100 web-accessible sources to locate QSL information for a callsign that you enter once

Amplifier Simulation Program - ASP 4.0 - Design weak signal GaAs FET or bipolar PreAmps. Automatically designs for optimum gain, NF, VSWR or all.

PLL2 - 2nd Order phase locked loop design for passive and active circuits. Bode plot, step response, design parameters

Field strenght meter - Simple to build with a very clear instruction set, useful to check the radiated power of your antennas