09 May 2019

	WSJT-X is equipped with a new mode FT4. Immediately, I submitted an application for additional changes to the attached equipment and tried the test.
Compared to the 4GFSK, 23.4 Bodotto, and FT8 developed for the contest, the communication speed is faster and the transmission time is shorter, so the
S / N ratio is considerably worse than the FT8 . Looking at the QSO at 14MHz, it seems that it
cannot be received because the report is being sent repeatedly and continuously . In image communication, transmission and reception are repeated at a pitch of 6 seconds, so I feel a little busy.
When I changed from JT65 to FT8, I had a feeling of weak meat and strong food in the normal character QSO, but it seems that this tendency will further increase in FT4.
The result of 7.172MHz is the same, and it seems that it will not decode unless it is a fairly strong radio wave. In image communication, it
seems that the FT8 will be better off, but what are your thoughts? ??