"whisper") is an acronym for Weak Signal Propagation Reporter. It is a protocol, implemented in a computer program, used for weak-signal radio communication between...

amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use...

acknowledge his work in developing weak signal communication modes for radio. WSPR: Weak Signal – Propagation Reporter WSPR is a software suite and computer...

could be plotted by analysis of the disruption to Weak Signal Propagation Reporter (WSPR) signals on the day in question. He claimed in November 2021...

Duncan, Kate J. (2021-03-10). "Simulation and Comparison of Weak-Signal VHF Propagation". SoutheastCon 2021. Atlanta, GA, USA: IEEE. pp. 1–5. doi:10...

WSJT-X is a computer program used for weak-signal radio communication between amateur radio operators. The program was initially written by Joe Taylor...

automatic spotting networks such as PSK Reporter within 2 years. FT8 is a popular form of digital weak signal communication used primarily by amateur...

recorder was invented by Valdemar Poulsen in 1898. Poulsen's device recorded a signal on a wire wrapped around a drum. In 1928, Fritz Pfleumer developed the first...

(2000). "Correcting propagation effects in C-band polarimetric radar observations of tropical convection using differential propagation phase". J. Appl....

for different wavelength ranges. Intensified CCDs can be used for very weak signals and/or pulsed lasers. The spectral range depends on the size of the CCD...