[time-nuts] Atomic Clocks: It is important that they keep good time, Part 1
phk at phk.freebsd.dk
Fri Jan 4 04:33:20 EST 2019
In message <CS1PR8401MB10780BD06FFE6BB5A74DF1BC8C8E0 at CS1PR8401MB1078.NAMPRD84.P
ROD.OUTLOOK.COM>, "Rice, Hugh (IPH Writing Systems)" writes:
>The clock display on a HP Cesium Standard is a bit of a gimmick.
>The legend I was told: An Admiral was touring a nuclear submarine,
>and was being shown the "Atomic Clocks" in the navigation section,
>and said: "If the Navy is going to pay 40 grand for an atomic
>clock, I damn well better be able to set my watch by it."
I once showed the CEO our brand new $100K cisco AGS+ router. It
was kitted out to the hilt with ethernet interfaces, but the front
side he saw had only the orange bridge siloutte and a single green
power LED. He looked at it and then said "For that kind of money,
couldn't they at least make it blink ?"
> Some poor engineer had to come up with a solution that fit the
> electronics in the round hole used by the Patek clock. 3 circular
> PCAs were used, electrically connected with pins from one PCB to
> the other, so it would be a drop in replacement. It was a hack
> of epic proportions. Hard to manufacture, expensive, power
> hungry. But it worked and was reliable.
Well, about that...
(I still have spare PCBs available)
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
More information about the time-nuts