WSPR

Related wiki pages Repeater listings, APRS, D-Star, Echolink, IRLP, Packet, Slow-Scan Television (SSTV), Fast-Scan Television (ATV), Optical communications, Software

WSPR Weak Signal Propagation Reporter
WSPR (usually pronounced "whisper") is a software application that uses the transmission mode MEPT-JT (Manned Experimental Propagation Transmitter - Joe Taylor).

In MEPT transmissions, the radio becomes a beacon that transmits for just under 2 minutes, transmitting callsign, locator and power information. Modulation is by narrow band FSK.