Hello Simon, Thursday, December 6, 2018, 3:38:45 PM, you wrote:
> The Dimension 4 i download recently uses, in dafault list, dozens > of ntp server, one after the next. this is exactly the point: D4 lists many server, but for time sync it is using just one of them. And this can be a problem - not in all cases, but in some. Wikipedia in "Clock synchronization algorithm" says: "Accurate synchronization is achieved when both the incoming and outgoing routes between the client and the server have symmetrical nominal delay. If the routes do not have a common nominal delay, there will be a systematic bias of half the difference between the forward and backward travel times." Additional in this Wiki, in "Windows Time service": "If higher accuracy is desired, Microsoft recommends using a different NTP implementation." https://en.wikipedia.org/wiki/Network_Time_Protocol Average Windows user, if they care (and who does that) looking for +/- 1 min, or so. For JT protocol, we are aiming to a have +/- 0,1 second. 73 de Wolfgang OE1MWW ---------- Amateur radio is the most expensive type of free-of-charge communication! Amateurfunk ist die teuerste Art der kostenlosen Kommunikation! _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
