You may watch the WSPR results in real time at WSPRnet.
WSPR (“whisper”) or Weak Signal Propagation Reporter software.
Dowloads for Windows at WSPR 2.0 WSPR 2.12 and FMT
This software program is designed for sending and receiving low-power transmissions to test propagation paths on the MF and HF bands and forwarding the results to WSPRnet.
WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Normal transmissions carry a station’s callsign, Maidenhead grid locator, and transmitter power in dBm. The program can decode signals with S/N as low as -28 dB in a 2500 Hz bandwidth. Stations with internet access can automatically upload their reception reports to a central database called WSPRnet, which includes a mapping facility. To see a live version of the map pictured at top right, click here.
Other Weak Signal software information
Gateway Amateur Radio Club 