Hi Well, you need to leave a lot out to keep it brief.
The answer is “somewhere in the 1x10^-10 to 1x10^-11 range. As long as you are not stating a tau or a confidence factor, any number in that range could be right. ===== Based on having done this a lot of times there are a couple of ways to present the numbers. 1) Fractions of a hertz. Since you get into mili and micro pretty fast, along with a bunch of decimals this can indeed loose people pretty fast. If the environment is one where multiple frequencies will be used / considered / discussed, fractions of a hertz gets a bit crazy. 2) Scientific notation. Obviously, this is a common choice. Since the exponent is ever changing it also can tangle people up, 3) Engineering notation. *IF* everything can be kept in one magic range, this usually works best. Talking about 100 ppt and 0.1 ppt ( or ppb or ppm) seems to get the point across without generating an enormous disconnect. You have one discussion about what a ppt is and then move on. …. back to gazing out over lovely Loveland CO. Bob > On Oct 2, 2019, at 12:32 PM, David Van Horn via time-nuts > <[email protected]> wrote: > > I'm writing up a presentation for some sales guys, and I need the typical > frequency error of the thunderbolt in marketing friendly terms like "plus or > minus X millihertz" > > What would that number be? Short term only. > > -- > David VanHorn > Lead Hardware Engineer > > Backcountry Access, Inc. > 2820 Wilderness Pl, Unit H > Boulder, CO 80301 USA > phone: 303-417-1345 x110 > email: > [email protected]<mailto:[email protected]> > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
