I'm curious which way the clock is off, fast or slow? There is a dedicated clock IC on the front panel board which has a fixed capacitor across the 32.768 KHz crystal. The data sheet for the PCF8563 clock IC states that that capicator can made a trimmer to set the frequency exactly. Of course, if the problem is in the way the MCU updates the clock, say internally rather than reading the clock IC, then errors could accumulate until the MCU reads the clock IC again.
Richard KL0DR At 09:24 AM 6/24/2010, John wrote: >Besides trivializing the subject, has anyone a way to make the clock in the >K# accurate. I foind it of value when in places like Kabul where there is >no access to WWV (for example) and while working a contest (like CQ WWSSB). >John Kountz, KE6GFF/T6EE > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:[email protected] > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
