Re: [LEAPSECS] Reliability (was Re: it's WP7A week in Geneva)

2009-10-03 Thread Poul-Henning Kamp
In message <0b8b21eb-dbea-4dec-89c5-f27557f37...@noao.edu>, Rob Seaman writes: >Tom Van Baak wrote: >It is clearly aberrant design for any system to ever lie about a >return value. Well, "lie" is such a strong word. I know for sure that both the Motorola UT+ and M12+T in certain a certain spec

[LEAPSECS] Reliability (was Re: it's WP7A week in Geneva)

2009-10-03 Thread Rob Seaman
Tom Van Baak wrote: when all is said and done). A 12.5 minute down time means your annual reliability can only be 4 9's, not 5 9's... This is why many receivers remember the last UTC offset values and warm start with them if they have only been off a short period of time... Warner User

Re: [LEAPSECS] it's WP7A week in Geneva

2009-10-03 Thread Tom Van Baak
when all is said and done). A 12.5 minute down time means your annual reliability can only be 4 9's, not 5 9's... This is why many receivers remember the last UTC offset values and warm start with them if they have only been off a short period of time... Warner Yes, but you know this only par

Re: [LEAPSECS] it's WP7A week in Geneva

2009-10-03 Thread M. Warner Losh
In message: <4ac732c8.3060...@rubidium.dyndns.org> Magnus Danielson writes: : Poul-Henning Kamp wrote: : > In message <1254164464.4ac107f021...@webmail.unb.ca>, "Richard B. Langley" writ : > es: : >> : > : > Thanks. : > : > A

Re: [LEAPSECS] it's WP7A week in Geneva

2009-10-03 Thread Tom Van Baak
Almost every GPS receiver also applies the UTC corrections to produce a UTC time. Infact, many of them can't externally produce any other time than UTC. Some has the ability to deliver GPS time or UTC time. Only a fraction of the receivers made only use GPS time, but then for some specific use.

Re: [LEAPSECS] it's WP7A week in Geneva

2009-10-03 Thread Magnus Danielson
Poul-Henning Kamp wrote: In message <1254164464.4ac107f021...@webmail.unb.ca>, "Richard B. Langley" writ es: Thanks. Although I do appreciate what the context conveys, I did smile when I noticed that the last slide mentions "GPS time"