Hi,
We have a TM1 Eval Kit with User's Guide. It has not been powered on for about
13 years. We'll check it out this week to see if it's operational.
Art
-Original Message-
From: time-nuts On Behalf Of Jerry via
time-nuts
Sent: Wednesday, July 10, 2019 9:03 PM
To:
Hi
> On Jul 11, 2019, at 9:37 AM, Leo Bodnar wrote:
>
>> Well part of it comes from designing, testing, and manufacturing a few
>> thousand OCXO designs over the years. We likely built 10’s of millions of
>> OCXO’s over the time I was doing / managing that.
> It might be just my personal
I'm on the fence on purchasing a new Thunderbolt E from Trimble and
wanted to hear from current or past owners.
I have a couple of the eBay x-telecom patchwork quilt GPSDO units which
seem to do an OK job. Is there anything else besides a warranty and
better performance specs that the
For what it’s worth, the mercury ion clocks were shipped to the US Naval
Observatory. HP shortly thereafter did a market survey and concluded there was
not enough profit in it. They did allow Len and Robin to give short-answer
support, and the project fell to me. I found the clocks were
Hello,
Why would you not want high drive level for best close-in noise? This is at
odds with general thinking in the industry.
Close-in in this context means from 0.1Hz to 1/f knee which is 1-100kHz
depending on the design of the sustaining amplifier.
There are few reasons why low phase noise
Hi
Well part of it comes from designing, testing, and manufacturing a few
thousand OCXO designs over the years. We likely built 10’s of millions of
OCXO’s over the time I was doing / managing that.
> On Jul 11, 2019, at 3:56 AM, Leo Bodnar wrote:
>
> Hello, /
>
> Why would you not want
> Well part of it comes from designing, testing, and manufacturing a few
> thousand OCXO designs over the years. We likely built 10’s of millions of
> OCXO’s over the time I was doing / managing that.
It might be just my personal opinion but credential swinging is better left out
of technical
On Wed, Jul 10, 2019 at 8:00 PM folkert wrote:
>
> > Folkert van Heusden has a driver for NTP which includes PPS output:
> > https://vanheusden.com/time/rpi_gpio_ntp/
> > Perhaps this might help?
>
> Indeed I did! :-)
>
> But please note that the jitter is high, iirc around 18ms.
> Personally I
>From the block diagram of the TM3-02 I can say that it is like the
TBolt, it has the disciplined oscillator in the receive chain so no
need to correct for the sawtooth.
On Thu, Jul 11, 2019 at 7:14 AM Jerry via time-nuts
wrote:
>
> Recent postings on 'sawtooth' hardware correction; several
The URQ 10 was a reference that drove a distribution system that then
provided the receivers and transmitters with a very stable reference. These
were used with the T827 and R1051 synthesized radios. If the radio was off
by 1 hz something was wrong. If the signal wasn't heard it wasn't there.
Not
Hi
There is nothing on the spec sheet that leaps out as “obviously better” than
the
T-Bolt’s that we all know and love. Indeed you *will* get support, a warranty,
and
a unit that has 10 to 20 years less wear and tear.
Bob
> On Jul 11, 2019, at 3:22 PM, Chris Burford wrote:
>
> I'm on the
I'm not going to buy one, but . . . what does a new-from-Trimble
Thunderbolt E cost?
Steve, K8JQ
On 7/11/2019 6:06 PM, Bob kb8tq wrote:
Hi
There is nothing on the spec sheet that leaps out as “obviously better” than the
T-Bolt’s that we all know and love. Indeed you *will* get support, a
Thanks Perry for that offer. I think the PDF is available several places
on the web, including the author's own website:
https://www.its.caltech.edu/~atomic/publist/tempcontroller.pdf
In addition there's a "comment on" the paper here:
On Fri, 12 Jul 2019 at 06:03, Perry Sandeen via time-nuts <
time-nuts@lists.febo.com> wrote:
> Yo Bubba Dudes!,
> This may not be too germain to the present discussion of temperature
> controllers but if anyone is interested I have a PDF copy of:
> A versatile thermoelectric temperature
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