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WSPR (pronounced "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 operators. The protocol was designed, and a program written initially, by Joe Taylor, K1JT.
An amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and ...
A BBC documentary investigating the disappearance of flight MH370 has reexamined the theory that Weak Signal Propagation Reporter (WSPR) radio signals could help to locate the missing aircraft in ...
WSJT was named after Dr. J.H. Taylor to acknowledge his work in developing weak signal communication modes for radio. [11] [c] WSPR: Weak Signal – Propagation Reporter WSPR is a software suite and computer network used to monitor propagation paths for optimal communication conditions. [11]
The digital signal processing techniques in WSJT-X make it substantially easier for amateur radio operators to employ esoteric propagation modes, such as high-speed meteor scatter and moonbounce. [2] Additionally WSJT is able to send signal reports to spotting networks such as PSK Reporter. [2]
PSK Reporter is an amateur radio signal reporting and spotting network and website started by Philip Gladstone in 2014 which allows operators to see where their radio signals are being received. [ 1 ] [ 2 ] The platform works by collecting digital signal reports from software clients such as WSJT [ 3 ] and FLDIGI, [ 4 ] then mapping them to ...
The required signal-to-noise ratio in a 2500 Hz bandwidth is −21 dB, so the corresponding E b /N 0 is 10 log 10 (2500/6.09) = 26.1 dB greater, or −21 dB + 26.1 = 5.1 dB. [ 1 ] Although FT8 transmissions occur within fixed time windows, the software can cope with discrepancies between sending and receiving systems of up to a second or two.
The NFL Network wisely let 11-year-old Jeremiah Fennell ask questions of the Chiefs and 49ers players, and he started things off with a terrific chat with Patrick Mahomes.