On 8/29/15 7:19 PM, Alex Pummer wrote:
Hi Bob,
go to your local city library get membership[ here in California it is
free] , and ask them to get from the university library, it will take
some time than they cal you the your stuff is there, you could have it
for four weeks if you need you
On Thu, 27 Aug 2015 21:14:09 -0700
Jim Lux jim...@earthlink.net wrote:
I don’t see anything on a quick Google search that actually give
the Beckman constants.
there's some C code out there that models AT (and also other cuts)..
I'll see if I can find it. I found it in a PhD
Hi
On Aug 29, 2015, at 9:25 AM, Attila Kinali att...@kinali.ch wrote:
On Fri, 28 Aug 2015 11:29:21 -0400
Bob Camp kb...@n1k.org wrote:
there's some C code out there that models AT (and also other cuts).. I'll
see if I can find it. I found it in a PhD dissertation on designing
On Fri, 28 Aug 2015 11:29:21 -0400
Bob Camp kb...@n1k.org wrote:
there's some C code out there that models AT (and also other cuts).. I'll
see if I can find it. I found it in a PhD dissertation on designing
temperature compensation neworks, as I recall.
The formulas and everything
On 8/27/15 4:46 PM, Bob Camp wrote:
Hi
On Aug 27, 2015, at 3:58 AM, Hal Murray hmur...@megapathdsl.net wrote:
kb...@n1k.org said:
Is there anything fundamental about SC that forces the turn over
temperature
to be high?
Simple answer yes. More complicated answer : that depends.
The
Hi
On Aug 28, 2015, at 12:14 AM, Jim Lux jim...@earthlink.net wrote:
On 8/27/15 4:46 PM, Bob Camp wrote:
Hi
On Aug 27, 2015, at 3:58 AM, Hal Murray hmur...@megapathdsl.net wrote:
kb...@n1k.org said:
Is there anything fundamental about SC that forces the turn over
temperature
to
to the DDS.
Mike
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Jim Lux
Sent: Wednesday, August 26, 2015 2:24 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] looking for SMT oscillator SC cut, with no oven
kb...@n1k.org said:
Is there anything fundamental about SC that forces the turn over
temperature
to be high?
Simple answer yes. More complicated answer : that depends.
The crystal curve on an AT or an IT centers roughly at room temperature.
When you fiddle the angles to get a stress
Hi
On Aug 26, 2015, at 7:28 PM, Hal Murray hmur...@megapathdsl.net wrote:
dk...@arcor.de said:
SC requires high temperature, that does not go together well with SMD and
low power.
Is there anything fundamental about SC that forces the turn over temperature
to be high?
Simple
On 8/26/15 4:46 PM, Alex Pummer wrote:
But if he needs 100dBc at 10Hz that is Wenzel's stronghold
[https://twitter.com/ultralownoise]
look that: http://www.wenzel.com/wp-content/parts/501-04517.pdf
Yep.. got one of those sitting on my desk (or one that's very similar)..
but it's a 2x2 block
Hi
On Aug 27, 2015, at 3:58 AM, Hal Murray hmur...@megapathdsl.net wrote:
kb...@n1k.org said:
Is there anything fundamental about SC that forces the turn over
temperature
to be high?
Simple answer yes. More complicated answer : that depends.
The crystal curve on an AT or an IT
For a project at work, I'm looking for a good close in phase noise
oscillator (better than -100dBc@ 10Hz, -120dBc would be nice) at 100 MHz
in a SMT form factor. But it doesn't need good temperature stability.
There's tons of SMT OCXOs out there with reasonably good performance,
but they draw
On 8/26/15 1:28 PM, steve heidmann via time-nuts wrote:
Rakon has always impressed me .
I'll take a look. The online datasheets don't have phase noise data for
close in frequencies (at least the 3 I looked at).. some give a
integrated jitter but it's for 12kHz and out, and I've noticed
Am 26.08.2015 um 22:04 schrieb Javier Herrero:
I suppose that one of the alternatives that you've explored are the
ABLNO from Abracon http://www.abracon.com/Precisiontiming/ABLNO.pdf
looks just like this one from Crystek:
http://www.digikey.de/product-search/de?keywords=cvhd-950
but that
Hello, Jim,
I suppose that one of the alternatives that you've explored are the
ABLNO from Abracon http://www.abracon.com/Precisiontiming/ABLNO.pdf
They say that they are 3rd overtone, but it seems more an AT-cut than a
SC, and anyway is around 10dB poorer than your requirements. An I
Rakon has always impressed me .
From: Jim Lux jim...@earthlink.net
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Wednesday, August 26, 2015 11:23 AM
Subject: [time-nuts] looking for SMT oscillator SC cut, with no oven
For a project at work, I'm
On 8/26/15 2:38 PM, Gerhard Hoffmann wrote:
Am 26.08.2015 um 22:04 schrieb Javier Herrero:
I suppose that one of the alternatives that you've explored are the
ABLNO from Abracon http://www.abracon.com/Precisiontiming/ABLNO.pdf
looks just like this one from Crystek:
But if he needs 100dBc at 10Hz that is Wenzel's stronghold
[https://twitter.com/ultralownoise]
look that: http://www.wenzel.com/wp-content/parts/501-04517.pdf
73
KJ6UHN
Alex
On 8/26/2015 2:38 PM, Gerhard Hoffmann wrote:
Am 26.08.2015 um 22:04 schrieb Javier Herrero:
I suppose that one of
dk...@arcor.de said:
SC requires high temperature, that does not go together well with SMD and
low power.
Is there anything fundamental about SC that forces the turn over temperature
to be high?
Or is is something like SC is only used in ovens and they have to be higher
than ambient so
On 8/26/15 1:04 PM, Javier Herrero wrote:
Hello, Jim,
I suppose that one of the alternatives that you've explored are the
ABLNO from Abracon http://www.abracon.com/Precisiontiming/ABLNO.pdf
They say that they are 3rd overtone, but it seems more an AT-cut than a
SC, and anyway is around 10dB
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