John -
I have a nice 3585B, 11729C (with all filters) and a nice working 8662A. I
assume the PN of the 640 output of the 8662A is still more than adequate.
You are suggesting replacing the multiplier within the 11729C with the NLTL
comb generator instead of the currently used SRD. I do not see
Thanks to all those who replied to my query regarding the above.
Regards
Tracey
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I happen to like the way Gimp is laid out, but I can
see how others might not... I am more of a function over
appearance sort of guy. The Gimp is so much more powerful
than Adobe Photoshop that it compelled me to learn its way of
doing things. It is a WordPerfect vs Word kind of difference
in my
From: Chuck Harris [EMAIL PROTECTED]
Subject: Re: [time-nuts] GIMP VS PhotoShop
Date: Fri, 28 Dec 2007 08:48:29 -0500
Message-ID: [EMAIL PROTECTED]
I happen to like the way Gimp is laid out, but I can
see how others might not... I am more of a function over
appearance sort of guy. The Gimp is
John Miles wrote:
Unfortunately, when I called Picosecond Pulse Labs to order my first choice
(the 7103 model), they told me they'd shut down their fab in Oregon and were
no longer producing NLTL multipliers. They have a few left in stock and are
selling them for $975 each regardless of the
Well it can get rid of that nasty nose hair on that favorite photo, or
replace that lazy eye with one from the other side :).
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Magnus Danielson
Sent: Friday, December 28, 2007 8:01 AM
To: time-nuts@febo.com
Magnus Danielson wrote:
Yes, yes, yes... but how will GIMP/Photoshop/VFSH improve my stability and
accuracy? Except for allowing me to fiddle with the graphs to display better
values than I actually acheive.
Oh, I think it can be more useful to precision time and frequency
measurement than
it has to run of its own power supply for ~18 hours a day, and
recharge fully at night. the device must be intrinsically accurate
without be disciplined by an external signal, although that could be
done at night. The size and wei8ght need to be pocketable such a a
large cell phone.I
Is an
This request is different than the last one.
The most accurate TCXO watch is about 1 seconds/year, with regular
wear and lots of adjustment. For at least 1 order of magnitude in
accuracy, what can be made/bought given these initial requirements: it
has to run of its own power supply for ~18 hours
Ronald Held wrote:
This request is different than the last one.
The most accurate TCXO watch is about 1 seconds/year, with regular
wear and lots of adjustment. [...]
Really? What watch is good to 1s per year? Can you point me at one?
That's amazing for a watch.
jeff
The SRD (step recovery diode) definitely degrades the phase
noise beyond 20 LOG N, according to Agilent engineers I have
talked to. They mentioned a number like -150 dBc/Hz or something.
Having said that, you also have to be very careful to design
the driver (especially with NLTL) or it will
I have a nice 3585B, 11729C (with all filters) and a nice working 8662A. I
assume the PN of the 640 output of the 8662A is still more than adequate.
Right; it doesn't make sense to swap out the 11729's SRD multiplier unless
you are also upgrading the 640-MHz drive source at the same time.
Sorry for the late reply. didn't see this until now.
Seeing only one part of the sky is not an issue for time keeping at the
accuracy you wanted.
I would worry about animals harming my DirecTV or 58532A GPS antenna, when
they were the size of a condor or had teeth like a beaver. Were such
It's hard to read the tea leaves on that. Dieter Scherer has one note
(Generation of Low PN Microwave Signals) that shows the 33004A multiplier's
output noise at -140 dBc/Hz to -148 dBc/Hz from 1 to 10 kHz, at 5.5 GHz
(N=11). If that is the case with the 11729's multiplier, then the NLTL part
is
This request is different than the last one.
The most accurate TCXO watch is about 1 seconds/year, with regular
wear and lots of adjustment. For at least 1 order of magnitude in
accuracy, what can be made/bought given these initial requirements: it
has to run of its own power supply for ~18
Just to throw another wrench in the gears.. I've become fond of
paint.net http://www.getpaint.net/
Michael Baker wrote:
Time-Nuts--
John De Armond said:
RE: Gimp. I wouldn't foist that crap off on my
worst enemy. Whomever conceived that user interface
had to be stoned. Bad stoned.
to Hal:
I meant a device which was independent. I suppose a phone in constant
contact with a CDMA tower/transmitter could be quite accurate, but
that is not what I wanted. The cell phone was just an estimate for
size and weight since people do not generally complain,nowadays about
the weight and
To Tom:
I will look at those products. Isn't there a problem if the
crystals are not preaged, for the accuracies I am looking for? Since
I am circuit impaired, besides the power supply, what other inputs are
needed and what is the output(1 PPS, a Frequency)?
Hi Ronald:
Here are a some of ideas for the heart beat for a LCD based clock like the ones
I've been developing.
Best) A Vectron EX-380 series Vacuum OCXO only draws 0.35 Watts and if the 5
volt version that's only 70 ma. So a single AA would have enough energy, three
AAA Ni-MH would be
You need a really clean driver to be good enough to need a NLTL
instead of an SRD. Whatever the intrinsic noise of the NLTL is,
it is lower than any practical source so you can consider it zero.
Rick Karlquist N6RK
John Miles wrote:
It's hard to read the tea leaves on that. Dieter Scherer
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