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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Accurate quartz watches
From: Jim Thompson
Date: 2005 Mar 19, 06:42 -0400
From: Jim Thompson
Date: 2005 Mar 19, 06:42 -0400
> -----Original Message----- > From: Peter Fogg > Keeping a log just records the raw data; it makes sense when plotted as a > graph. I use the elapsed time (days, weeks, etc) on the > horizontal axis, the > seconds above/below zero (perfect time) on the vertical axis. Agreed. I use a HanDBase database in my Palm handheld computer to log variance between my time pieces and various authorities, usually a phone call to the Ottawa time standard. The database synchronizes to my desktop, where I maintain an Excel spreadsheet to do the graphs. This helps me to compare the times given by various standards too (Ottawa by phone, CBC radio, shortwave time signal, GPS time signal, Internet times etc). As Peter points out, this system makes it easy to maintain cheap digital watches for time keeping. Jim Thompson
