Re: [time-nuts] FE-5680A Rb Questions

2011-12-16 Thread Neville Michie
Does the FE-5680A have a similar Rb cell to the LPRO-101? If so do they have finite lamp life, (can you find the one you buy has little life left?) Or by not reporting the status of the lamp no-one worries about it? cheers, Neville Michie ___

Re: [time-nuts] FE-5680A Rb Questions

2011-12-16 Thread Azelio Boriani
I think every Rb has a finite lamp life... On Fri, Dec 16, 2011 at 11:41 AM, Neville Michie namic...@gmail.com wrote: Does the FE-5680A have a similar Rb cell to the LPRO-101? If so do they have finite lamp life, (can you find the one you buy has little life left?) Or by not reporting the

Re: [time-nuts] FE-5680A Rb Questions

2011-12-16 Thread Chuck Harris
It has been pretty well shown that the lamp life is effectively infinite. The only thing that happens to shorten an effective useful campaign of the lamp is when the Rb plates out on the lamp envelope, and renders the glass opaque. That problem, however, is easily remedied, by heating the glass

Re: [time-nuts] FE-5680A Rb Questions

2011-12-16 Thread Azelio Boriani
Yes, of course, in that sense: the life must be restored at some time. On Fri, Dec 16, 2011 at 2:29 PM, Chuck Harris cfhar...@erols.com wrote: It has been pretty well shown that the lamp life is effectively infinite. The only thing that happens to shorten an effective useful campaign of the

Re: [time-nuts] FE-5680A Rb Questions

2011-12-16 Thread paul swed
Chuck Magnus and others will tell you the same reheat the lamp to evaporate the Rb. I have done it also and it puts it right back in the mid range of life. Voltage wise. No way to know if it might plate out quicker with age. The Rb reference were built with a finite life expectation 7 years I

[time-nuts] FE-5680A Rb Questions

2011-12-15 Thread Chuck Forsberg WA7KGX N2469R
With mine due to arrive soon, I have some questions. 1. Will it work on 12 volts instead of 15? 2. Is the serial i/o really RS-232 or something else 3. Is there a command list? 4. Which pinout list is correct? -- Chuck Forsberg WA7KGX N2469R c...@omen.com www.omen.com Developer of

Re: [time-nuts] FE-5680A Rb Questions

2011-12-15 Thread Chris Albertson
On Thu, Dec 15, 2011 at 11:05 AM, Chuck Forsberg WA7KGX N2469R c...@omen.com wrote: 1.  Will it work on 12 volts instead of 15? My bet is no as there is an internal regulator that likely needs headroom 2. Is the serial i/o really RS-232 or something else There is a Max rs232 level converter

Re: [time-nuts] FE-5680A Rb Questions

2011-12-15 Thread GandalfG8
In a message dated 15/12/2011 19:41:58 GMT Standard Time, albertson.ch...@gmail.com writes: On Thu, Dec 15, 2011 at 11:05 AM, Chuck Forsberg WA7KGX N2469R c...@omen.com wrote: 1. Will it work on 12 volts instead of 15? My bet is no as there is an internal regulator that likely needs

Re: [time-nuts] FE-5680A Rb Questions

2011-12-15 Thread Bob Smither
Chris Albertson wrote: On Thu, Dec 15, 2011 at 11:05 AM, Chuck Forsberg WA7KGX N2469R c...@omen.com wrote: 1. Will it work on 12 volts instead of 15? My bet is no as there is an internal regulator that likely needs headroom 2. Is the serial i/o really RS-232 or something else There is a