HEATKEYS

International Electronic Discussion Forum: EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals

The largest amateur Unmanned Aerial Vehicle (UAV) community on the web.

Thousands of hacking projects and tutorials: hack your iPod, cell phone, Xbox 360, lasers, case mods, airsoft - We hack them all!

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

FalTech GPS is a UK-based supplier of GPS repeater technology that provides GPS satellite signals inside any building. L1, L2 and GLONASS supported.

DIY Electronic circuit schematics and projects with full instructions, PCB files , photos and user reviews.

GPS Networking is the market leader in GPS signal distribution products for wide-ranging markets specializing in GPS signal amplification, repeating, splitting, networking, attenuating and filtering, also including satellite radio, military, aviation...

- eHam.net is a Web site dedicated to ham radio (amateur radio).