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FT8 time differential - how to resolve?


 

A buddy reported to me that my zBitx was showing 1.8s of DT in his WSJT-X console, and I can verify same with my own copy locally. I have verified that the clock on the zBitx is to the instant correct with WWV, ie. when I hear start of the tone at the top of the minute, the minute switches over on my zBitx, as well as with my NTP synchronized devices around the shack.

Yet, when I answer a call or start a CQ, I'm showing as 1.8 seconds out of sync with most other people.
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Also what 'app' or library or whatever is being used for FT8?
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73,
.Vince
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