Hi At the time EG&G had done the GPS Rb’s but not done any other military parts. Some research showed that indeed the FRK went into a variety of systems and the price was $X. (It varied a bit with quantity)
Push the numbers around and look at this and that. The decision was made that indeed if you could sell a few hundred to maybe a thousand a year at $X, it was a good thing. A design was done and (as noted earlier) it was a good little device. The fun part came with that $X pricing. Out comes a request for some few hundred pieces to this or that organization. Bid $X, order goes down to the competition for X-$300. Next request for a few hundred, bid X-$400, order goes down to the other guy for X-$500. This step by step process goes on for a year …. same result again and again. At the end of that time period it was far less clear just *why* one does up an FRK like part …. Bob > On Apr 8, 2020, at 2:32 PM, djl <d...@montana.com> wrote: > > What a tease!!!!! OK, very well WHY??? > Don > > On 2020-04-08 08:04, Bob kb8tq wrote: >> Hi >> A few of the long running FRK’s ( in a very similar package … >> hmmm ….. wonder why …. yes, I was there way back then >> and know very well why :) ) have crazy good long term aging. >> That said, I don’t think that I’ve seen a FRK quite this good. >> Thanks for sharing !!! >> Bob >>> On Apr 8, 2020, at 9:45 AM, mar...@ptsyst.com wrote: >>> Hi Guys, >>> Just though you'd be interested in my prototype rubidium frequency standard >>> I made in the 1990's. >>> http://www.ptsyst.com/RFS10-FrequencyDrift.pdf >>> I have measured its frequency at random intervals for the past 18 years. >>> Its never been adjusted and is just free running. >>> It was turned off in 2005 and sent to a customer in Japan for a few weeks, >>> then returned and turned back on. >>> For the past 18 years its stayed within plus/minus 3 x 10E-11. >>> The overall linear drift is something like 1.85 x 10E-13 per month. >>> This is not an advert. There's no way any of our production units are as >>> good as this one, well I assume so as I've never measured any for 18 years >>> continuous! >>> Its now over 25 years old, have hardly ever been turned off. Any day I >>> expect it to fail, but it keeps on running!! >>> Regards >>> Martyn >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@lists.febo.com >>> To unsubscribe, go to >>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>> and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe, go to >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >> and follow the instructions there. > > -- > Dr. Don Latham AJ7LL > PO Box 404, Frenchtown, MT, 59834 > VOX: 406-626-4304 > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.