Hi
The utility of the watch crystal is greatly enhanced in a wrist watch by
the calibration process on the watch. When they use one in an AC powered
clock (say a clock / radio / alarm) , it’s as a backup device. Power goes out
and the crystal keeps time. They don’t do much (any at all)
Hi
Here’s the basic point:
What is *required* for low phase noise?
If you can build *one* oscillator that violates a “law” then that “law” is not
valid. In tis case the question is “do you *need* low harmonics in the
oscillator
stage to get low phase noise?”
Here on the list, we get obsessed
Just picked it up, it has an internal rubidium which piqued my interest as
worst case I could cannibalize the unit. It's also been sitting on a shelf
for 10 years so the oscillator should hopefully have some life left in it.
What does surprise me is the firmware is dated 25th August 1998, I was
Trying again in case the SPAM header frightened you. My ISP is flagging some
nut mail. Don’t know why.
Le 27 juil. 2015 à 09:44, Mike Cook michael.c...@sfr.fr a écrit :
Back in the 2011, the same Q was asked here and there was a response from Rob
Kimberley who had worked at Austron
Here's the rub Bob. I have been trying to find a way or have you explain
how a high harmonic oscillator stage is even possible and zip. You don't
know and I certainly don't know. So there's that.
Jerry
On Jul 27, 2015 9:33 AM, Bob Camp kb...@n1k.org wrote:
Hi
Here’s the basic point:
What is
Bob wrote:
In tis case the question is do you *need* low harmonics in the oscillator
stage to get low phase noise?
Note that there are actually two questions. One is WRT the phase
noise of the oscillator itself, and the other WRT the phase noise of
a system that integrates the oscillator.
Hi Attila, Bob et al
Generally speaking, you do want satellites as low on the horizon as
possible, because they give you the most accurate x/y position solution.
The idea is to get a location where you can see at least 2/3 of those
tracks when they are above about 20 degrees to the
Hi
On Jul 27, 2015, at 11:52 AM, jerry shirᴀr radio.n...@gmail.com wrote:
Here's the rub Bob. I have been trying to find a way or have you explain
how a high harmonic oscillator stage
You are confusing the current through the crystal with the current in the
oscillator transistor.
So:
Jerry wrote:
I have been trying to find a way [to] explain how a
high harmonic oscillator stage is even possible and zip.
Simple. Use a circuit with way more gain than necessary, and bias it
so that it goes into saturation at the one end of its voltage
excursion long before the current
Hi
On Jul 27, 2015, at 1:28 PM, Charles Steinmetz csteinm...@yandex.com wrote:
Bob wrote:
In tis case the question is do you *need* low harmonics in the oscillator
stage to get low phase noise?
Note that there are actually two questions. One is WRT the phase noise of
the oscillator
Hi
On Jul 27, 2015, at 1:28 PM, Charles Steinmetz csteinm...@yandex.com wrote:
Bob wrote:
In tis case the question is do you *need* low harmonics in the oscillator
stage to get low phase noise?
Note that there are actually two questions. One is WRT the phase noise of
the oscillator
Hi
For all of you who dropped off the list back around Christmas and decided to
re-join now that the KS box yack has died down …..
The usual auction site now has the pair selling for $100 and the “no GPS
inside” part of the pair selling for $25 or two for $50.
Mighty fair prices considering
In the early 1970's both LED and LSI integrated circuit technology
advanced to the point that digital wristwatches were introduced. These
used 32,768 Hz crystals. Use of this technology was made in digital desk
clocks (such as alarm radio clocks), but I think that for many years it
was much less
Gotta get some answers from my relative in a PA gas fired plant. A year
ago he told me that the plan to deregulate the number of cycles in a day
had been abandoned. The referenced documents are older than that.
OTOH, there's no other explanation for Hal Murray's observation of the
West Coast
Thanks Tim. I love reading these papers. However my copy states In fact,
were it not for this slight non-linearity, it would be virtually
impossible to build a simple lamp-stabilized RC oscillator with good
envelope stability over a wide frequency range. rather than In fact, were
it not for
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