On 5/6/19 3:54 PM, Bob kb8tq wrote:
Hi
Back a while ago it was in the “over a million dollars” range. Like anything
that
is designed for space use, the price is meaningless until you sort through what
kind of paperwork this or that program requires.
Yeah, this one:
Radiation
Hardened to withstand natural and manmade space environments, including
phase- continuous operation through transient radiation
is a pain.
The vibe is high, but not mindbending they don't say whether it's sine
or random. But as a comparison the usual cubesat qualification level is
14grms...
Who was Excelitas originally? Salem, MA - is it EG&G?
Bob
On May 6, 2019, at 5:37 PM, William H. Fite <[email protected]> wrote:
Anyone know the price of the Excelitas device? No, I'm not interested in
purchasing one, just curious. I assume it is hair-curling expensive.
On Monday, May 6, 2019, Bob kb8tq <[email protected]> wrote:
Hi
Ummm ….. errrr ….. the Efratom Rb’s use an integrated lamp plus one cell.
http://www.wriley.com/A%20Modern%20MIL%20Rubidium%
20Frequency%20Standard.pdf <http://www.wriley.com/A%
20Modern%20MIL%20Rubidium%20Frequency%20Standard.pdf>
There still are a lot of people doing the lamp plus two approach. One of
many:
http://www.excelitas.com/Downloads/DTS_Frequency_Standards_RAFS.pdf <
http://www.excelitas.com/Downloads/DTS_Frequency_Standards_RAFS.pdf>
Bob
On May 6, 2019, at 3:23 PM, Ed Palmer <[email protected]> wrote:
On 2019-05-06 10:00 AM, Bob kb8tq <[email protected]>wrote:
Hi
I?m sure they are good cells. The gotcha is ?which one is it??. A
normal Rb has multiple
cells doing different things. You ? umm? errr ? need a set of cells ?.
Why do you think I posed the question "Anybody feeling lucky (or
desperate!)?"? Don't forget that all(?) newer Rb standards use an
integrated cell so it's a 'set' of one. Whether that's the case here is
unknown, but not likely given the size of this cell.
The only Russian Rb company I've heard of is Kvarz. Has anyone seen a
cell from one of their old units?
Ed
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