On 5/7/19 2:16 PM, Bob kb8tq wrote:
Hi
Well, given the price, running it in a thermal-vac chamber would not
significantly increase
the charges to your credit card :)
But perhaps Poul-Henning was thinking about the gravitational force.
So you could buy two, and drop them alternately down a pair of evacuated
drop towers.
I did notice that the temperature range is quite small for flight
hardware (typical design range might be -10 to +55) - but then, they're
mounted in a fairly large satellite and that's basically putting the
thermal engineering responsibility on the satellite bus engineers.
Holding within 5 degrees nominal is fairly straightforward
it's people wanting to hold milliKelvins that are the ones making trouble.
Bob
On May 7, 2019, at 3:23 PM, Poul-Henning Kamp <[email protected]> wrote:
--------
In message <[email protected]>, Bob kb8tq writes:
In terms of “I don’t want one” …. well, they are pretty much the best Rb ever
made anywhere / ever. They are as close as you will get to a maser and
not *be* a maser.
Rumours has it that the design is optimized for space use and therefore
not quite as fantastic at sea-level.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[email protected] | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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