In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] writes: >I have a tiny mini-ITX motherboard that has served as a stratum-1 for >several years. > >It sits in the basement, so no radically wild swings in temperature or >other environmental factors. > >Still, this morning when I look back at a few years of loopstats, the >oscillator in this thing is remarkably, and maybe unbelievably, stable. >It has stuck in the -2.5 to -5.5 PPM range over the past two years, and >in a typical daily swing it might go up and down by a 0.5 PPM. > >Is this statistic just "too good to be true"? Or did I luck out when I >bought this box many years ago?
Seems fine to me. I'll bet you can back compute the temperature from the drift. My unheated/uncooled setup swings by 2 ppm each day. That's with a 10 F temperature swing. >It has two refclocks available, wwv_audio and a Z3801A (via hpgps and a >PPS nanokernel), and cross-checking between the two I believe them >both. > >Tim. > -- The suespammers.org mail server is located in California. So are all my other mailboxes. Please do not send unsolicited bulk e-mail or unsolicited commercial e-mail to my suespammers.org address or any of my other addresses. These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
