Videos: Single sideband, HAMNET update, HF propagation

Introduction to SSB

This is an Air Traffic Command instructional video describing the theory behind single side band (SSB) modulation. Dig that jazzy intro music!

HAMNet Update

HAMNET (Highspeed Amateur radio Multimedia NETwork) is a fully-independent amateur radio wireless network that provides data services. It’s a wireless internet, so to speak. It covers many regions in Europe and is even now growing fast beyond its European border. Hamnet is using international coordinated IP-address space of the AMPRNet (44.0.0.0/8) and Autonomous System (AS) numbers out of the 16-bit and 32-bit private AS number space to interconnect active regions by external Border Gateway Protocol (BGP) routing.

Here is an up date on HAMNET given at the recent FOSDEM conference.

Rohde & Schwarz on HF Propagation

Rohde & Schwarz produces some of the finest RF instrumentation in the world. They also produce great videos on RF topics. This one explains HF propagation.