The January Club Program was about Antenna Propagation tools/programs such as Reverse Beacon Network and the PSK Reporter used to measure and compare, in real-time, your antennas with the worldwide CW/Digital Skimmer network with multi-band SDR receivers. There are thousands of listening stations, provided for and maintained by our fellow Hams. The skimmer outputs are aggregated and carried over the internet to the servers that deliver the spotting and propagation information.