In message <05ea571f-18cd-4046-b520-63f29a892...@n1k.org>, Bob Camp writes:
>> See also http://leapsecond.com/pages/fe405/ and the links near the bottom.
>> This (patented) FEI design avoids the spur issues several of you have been
>> talking about: the RF output comes from a low-noise
Hi Tom:
While I was working at TRW Microwave we were purchased by FEI. It's my understanding the their key capability was in
the crystal material in that it produced the cleanest oscillators on the market.
--
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/201
Hi,
Vremya also have such boxes. The current one, VCH-317, goes under the
name "Real-Time Atomic Clock Combiner" which may not give you the
initial association of it being a micro-stepper. I have read the manual
for an older box, or at least an older description, which included a
nice descrip
Hi
> On Dec 9, 2015, at 12:34 PM, Tom Van Baak wrote:
>
>> Are you aware of some redeeming value that phase microsteppers
>> have that would make us want to investigate them? Am I
>> being too harsh on them? Maybe you can champion them and they
>> will make a come back :-)
>>
>> Rick Karlqu
> Moin,
>
> I just tried to figure out how phase microsteppers are usually build,
> but, beside the time-nuts discussion from 10 years ago and US patents
> US4358741 and US4417352 my search turned out empty. I am pretty sure
> that I used the wrong search terms and there should be lots of document
Hi Attila:
Once you find a patent you can then search on the class number for very
similar patents.
See the links under "Handy External Links:"
http://www.prc68.com/I/Learning.shtml
Quick allows searching for a class number or other fields (but not the text of
the patent).
PS Sunnyvale has a p
> Are you aware of some redeeming value that phase microsteppers
> have that would make us want to investigate them? Am I
> being too harsh on them? Maybe you can champion them and they
> will make a come back :-)
>
> Rick Karlquist N6RK
A phase microstepper is useful with many older Rb and Cs
Do you mean delay-generators for 1PPS? Or a finely-tunable frequency
synthesizer?
For 1PPS, the fine-delay FMC card might be worth a look:
http://www.ohwr.org/projects/fmc-delay-1ns-8cha/wiki
afaik it works by first time-stamping the input pulse, then delaying the
output with an integer number of
On 12/9/2015 2:26 AM, Attila Kinali wrote:
Moin,
I just tried to figure out how phase microsteppers are usually build,
but, beside the time-nuts discussion from 10 years ago and US patents
US4358741 and US4417352 my search turned out empty. I am pretty sure
that I used the wrong search terms and
it is not a hint, for what you asked, but if you add a DC voltage to the
output of the phase detector in an analog PLL the VCO phase could be
adjusted, similarly if you add a constants to the input data of a phase
accumulator of the NCO you could adjust the phase of the NCO
but be aware, the N
Moin,
I just tried to figure out how phase microsteppers are usually build,
but, beside the time-nuts discussion from 10 years ago and US patents
US4358741 and US4417352 my search turned out empty. I am pretty sure
that I used the wrong search terms and there should be lots of documentation
out th
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