WWVB DX Virgin No More
Thanks to a spiffy new Airspy HF+ SDR receiver I can scratch listening to WWVB off the bucket list.
Propagation
Articles concerning radio wave propagation.
NVIS works very well… except when it doesn’t
Near Vertical Incident Skywave (NVIS) propagation works wonders when the bands cooperate, but can slam the door shut at any moment.
Sunspots and HF propagation
QSO data from a state QSO party reveal trends in HF usage correlating with sunspot numbers.