WSJT-X 
WSJT-X SSB transceiver
FT8, FT4, Q65, JT65, MSK144, WSPR and more — for worldwide HF DXing, EME, and meteor scatter with an ordinary SSB radio.
Download →WSJT-X Official distribution
Decode what you can’t hear.
WSJT-X, MAP65, and QMAP are open-source programs for weak-signal digital communication on the amateur bands — from worldwide FT8 on HF to EME on the microwave bands.
The official project
Home of FT8 — and the reference implementation for weak-signal digital communication.
WSJT-X is created and maintained by Joe Taylor, K1JT, and the WSJT Development Team. Official releases and support live only here, on GitHub — other “improved” builds and forks are independent community projects, not part of official WSJT-X.
github.com/WSJTX/wsjtx
What operators do with it
Weak-signal modes turn modest stations into capable ones.
Chase DX
Work the world on the HF bands with a few watts and a simple antenna.
Meteor scatter
Complete VHF contacts off the ionized trails of meteors, in seconds.
Moonbounce (EME)
Bounce signals off the Moon on the VHF, UHF, and microwave bands.
Probe propagation
Map worldwide band openings with low-power WSPR beacons.
Three programs, one project
Built and maintained together by the WSJT Development Team.
MAP65 Wideband VHF/UHF
A panoramic receiver for JT65 and Q65, with polarization matching that defeats Faraday rotation on EME.
Download →QMAP Wideband EME
Q65 reception across a full EME sub-band, working alongside WSJT-X with Earth-Moon-Earth Doppler correction.
Download →Eleven modes in WSJT-X
Each one tuned for a different propagation problem — meteor scatter to moonbounce.
FT8
FT4
Q65
JT65
JT9
JT4
FST4
FST4W
MSK144
WSPR
Echo