Heartland DX Association
- The mission of the HDXA is to encourage DX activites in Eastern Nebraska and Western Iowa. The HDXA is a ARRL Affiliated Club with members promoting & sharing DX information and experiences.
The SouthEastern Repeater Association, Inc. (SERA)
- Welcome to the official Home Page of SouthEastern Repeater Association Inc. SERA is the largest Amatuer Radio Coordination organization in the United States. SERA represents Kentucky, Mississippi, North Carolina, South Carolina, Virginia, Tennessee, West Virginia and Georgia
South Eastern Amateur Radio Group
- EI2WRC Based in Waterford, Ireland. Resources, Information and Links about Amateur Radio, Propagation, DX, Repeaters, News, Packet etc. Also contains useful charts and maps and a Photo Album of out club.
Radio Free Europe
- Radio Free Europe / Radio Liberty is an international news and broadcast organization serving Central and Eastern Europe, the Caucasus, Central Asia, Russia, the Middle East and Balkan countries.
- SignalGen is a free (GPL) Linux (Xwindows GUI-based) utility that generates relatively low frequency signals with the use of a PC sound card. It is an entirely suitable replacement for a hardware signal generator if one doesn't require signals of a frequency higher than about 50 KHz. SignalGen creates any frequency between a fraction of one Hertz and an upper limit determined by your sound card's capabilities.