Re: [time-nuts] GPS Leap Second

2005-08-06 Thread David Forbes
At 7:39 AM -0700 8/5/05, Tom Van Baak wrote: By the way, if someone has access to world population sorted by timezone see if you can calculate the exact percentage of people left of Greenwich vs. right of Greenwich. /tvb This photo could be used for the raw data, since it approximates the nu

[time-nuts] Re: Navman Jupiter GPS

2005-08-06 Thread Alberto di Bene
Mike Seguin wrote: >Alberto, > >This site has much information on the engines. It lists the following, which >doesn't say Navman, but the model number is in the series > >Datasheet Jupiter GPS Receiver TU30-D140-211/221/231. size 1.3MB, 19 pages, >date: sept. 1998 > >http://www.gpskit.nl/downloads

Re: [time-nuts] Newbie with new questions: Rubidium

2005-08-06 Thread Robert Lutwak
The lamp runs quite hot (typically over 100C). Failure is generally the heater, which is typically a transistor or FET bolted to the lamp body. Occasionally, the RF transistor which drive the lamp discharge (something in the range of 60-150 MHz) will fail. Again, it's the electronic components

Re: [time-nuts] Newbie with new questions: Rubidium

2005-08-06 Thread Magnus Danielson
From: <[EMAIL PROTECTED]> Subject: RE: [time-nuts] Newbie with new questions: Rubidium Date: Fri, 5 Aug 2005 16:45:17 -0700 Message-ID: <[EMAIL PROTECTED]> > Our experience has been that the most common > failure in Rb standards is the Rb lamp. There > is a known wearout mechanism in the lamp an