On Wed, Jul 20, 2011 at 7:08 PM, Igor Kosvin <[email protected]> wrote:
> ...aging drift - better than 1e-11 per month. Useful life of LPRO - usually > 15 years. > Make your math how much it drifts over life.... =========== An interesting question. If the drift is always in the same direction, you get the (apparently) obvious answer. If, at the other extreme, each month's drift is independent of the previous month's, then the expected frequency at the end will be described by a Gaussian distribution with mean = the starting point, and standard deviation scaled by the square root of the number of months. In practice, one would expect some serial correlation between monthly drifts, so a bias would be added to the expected mean. Tony KT0NY ______________________________________________________________ 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
