HEATKEYS

AMSAT is a worldwide group of Amateur Radio Operators who share an active interest in building, launching and then communicating with each other through non-commercial Amateur Radio satellites. AMSAT designs, constructs and successfully launches comm...

A little online application with interactive map that shows sun movement and sunlight phases during the given day at the given location.

DX Zone directory with 15000 Amateur Radio links, about Ham-Radio radio scanning, cb radio and shortwave listening, antenna homebrew projects and a complete radio software collection. Include a free classified ads, ham radio reviews and operators di...

Bringing a quarter century of proven experience and performance on solar power, SunPower provides residential, commercial and power plant solar solutions. Discover why SunPower is The World’s Standard for Solar.

This website features an assortment of projects and how to guides for the DIY er.

GPS Tracker | GPS Tracking Tracker| GPS Tracking Device | GPS Locator for fleet management, law enforcement and personal vehicle tracking. Global Positioning Syste

Build It Solar will help people with Do It Yourself skills build solar projects that save money and reduce pollution. It is a "hands-on" site with detailed plans for solar projects including solar space heating, water heating, passive sola...

High Powered Heliostat Array Concentrating Solar Collectors.

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.