40 meter

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

Coaxial-Cable Trap Dipole  ^{updated  pop} - An Attic Coaxial-Cable trap dipole for 10, 15, 20, 30, 40, and 80 meters

2 meter Quagi 97  ^pop - Dimensions and plan to build a W5UN EME quagi antenna

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

Loop Antenna for 6m  ^pop - Indoor loop antenna for six meters band, project by Colen Harlow, G8BTK

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

Inductors used in antenna matching networks - Article about variometers, helipot inductors, roller inductors, binary switched inductors, Coil and Capstan by G3YNH

Sierra Fox - An 11 meter radio club

43AX101 Ben Priority listing - Home page of 43AX101- Ben. Practical informative site for 11-meter operators DX-ing the South Pacific, DIY antennas,propagation & monitor updated daily.

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

VP6BR Pitcairn Isl. - DXpedition to Pitcairn Island in January 2000 to celebrate OH2BR 40 year long Amateur Radio career

WinLink 2000 - WinLink 2000 employs Stations World-wide to provide an HF/VHF/UHF digital radio Interface into the Internet Email system for the mobile radio operator. Features include binary and graphic file attachments, APRS position reporting and over 340 downloadable WX products. The mode used is Pactor I and Pactor II.

WebSDR in Louisiana USA - WebSDR Receiver on 10 meter by W5ZA located in Shreveport, Louisiana USA

T.G.M. Communications - MQ-1 four band HF beams 20,15,10,6 meters MQ-2 six band HF beams 20,17,15,12,10,6 meters, beam antennas and Hybrid Quad antennas

I.C. Engineering - Electromagnetic field strength meter

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

Hidden Transmitter Hunting - Lots of information of hidding transmitters, building portable yagi antennas, s-meters, and much more

6 Meters repeaters - 6 Meters repeaters in California

HB9G RV58 French-Swiss Repeater - French-Swiss Radio Amateur Repeater, located in Switzerland, at 1628 meters.

Radio Blandengue - Transmitting since 1997 from s. america

QARTest - Italian only contest logging software, designed for the ARI 40-80 contest.

ERP Calculator - DOS program that will assist you in determining your 2 meter station's Effective Radiated Power (ERP)

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