You computer can generate "time code" audio signals and if you are keeping the computer's clock sync'd with NTP then those generated time codes will be reasonably accurate. The time code generator is distributed with the NTP software along with other misc. tools. It's a free download if you don't have it. The code is I think the same as sent by WWV. It is some IRIG version. It hing the name of the time code generator is just "tc". There is a good chance you alreasy have this but if not it's in the NTP source distribution
OK I just looked it up. The filename is .../util/tg.c and here is a quote from the file * This program can generate audio signals that simulate the WWV/H * broadcast timecode. Alternatively, it can generate the IRIG-B * timecode commonly used to synchronize laboratory equipment. later NTP can read back this time code and sync a clock to it. We do this "all the time" when recording rocket telemetry at work. It works pretty much exactly the way the OP wanted I thing this implementation in tg.c is good to about 1 millisecond -- ===== Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
