Thanks for the info, Clint. Seems like the only way to get my four Panasonic DVRs to synchronize time is to analyze the I/O of the micro in the DVR, write interface and HMI specs, and replace the micro with one that can talk to my SNTP server. (Added two DVRs back when NASA was launching shuttles.)
This would have the added benefit of fixing the scheduling bugs and make finalizing automatic for a full disk, rather than the five clicks it takes now. One day, the lack of sync every week will get to me, and I'll start this project, but I don't think I'll live to finish it. Bill Hawkins -----Original Message----- From: Clint Turner Sent: Thursday, February 02, 2012 4:10 PM -----%<----- Off subject stuff snipped I, too, have an older (Philips) DVR that has lost its time sync since the analogs went dark. For a while, I used the XDS time code that happened to be in the vertical interval of one of its standard definition DTV PBS station's sub-channels (received on a set-top box and modulated onto a TV channel to which the DVR would "look" for its time code) but this has code since been dropped. Before I discovered this, I dug up the line 21 (IIRC) code specifications and noted that even a PIC could probably generate the proper code, synchronized either from a GPS or a WWVB receiver. I'd thought about putting it on multiple lines and then RF modulating it for the DVR to see, but lost enthusiasm after I discovered the time code on the sub-channel. Since that went away (about a year ago) I've just remembered to set the clock once a month, not being able to quickly find the specs for the time code again online... 73, Clint KA7OEI _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.