Dit Stations slightly out of sync 3 different frequencies:
6801.38 khz, 6803.38 khz and 6805.38 khz.
The 6803.38 khz being the strongest in signal and the 2 others much weaker but about the same as each other in signal strength.
Frequencies #1 and #3 appear to be in sync with the #2 signal a little later (as in a few mili-seconds).
Hope this might be helpful.
73
Vince KA1IIC