AMRAD Active LF Antenna
- The AMRAD Active LF Antenna. You can tune into LF activity with this easy-tobuild and erect active antenna. As a bonus, you get MF and HF coverage, tooŚnot to mention world-class performance
OK1RR DX & Contesting Page
- Almost a fresh QSL manager Database, Country Tables for YPLOG by VE6YP (updated monthly), Additional files for the TRLoog by N6TR. Technical topics for HF Contesting (mostly CW), software download (a huge collection)
The home of NuMorse and NuTest
- Learn the Morse Code. Learn from random text or simulated QSO (contact) sources. Create character sequences that you find difficult. Compare your results with what the program sent and view error statistics. Take simulated tests. Sound card not essential. Evaluation version not time limited.
Digital Communications Conference
- Hams convene each year at a Digital Communications Conference to evaluate and further the state of the art. TAPR's webserver provides conference papers from previous DCCs as well as information about the upcoming DCC.
NAVSTAR GPS Timing Operations
- NAVSTAR GPS Timing Operations, USNO GPS Data & Information Files Global Positioning System Overview Current GPS Constellation, GPS Time Transfer Operations, GPS & Glonass Satellite Visibility