Hi Ashley,
Reading between the lines, are you trying to subsitute a 1pps output GPS for
use in the G3RUH 10kHz GPSDO design? If this is the case youwould be better
off biting the bullet and going for a design that uses 1pps directly. An
example is the classic Brooks Shera design,
All,
This years European TF Forum is being held at ESA-ESTEC in Noordwijk in the
Netherlands.
Rob Kimberley
_
Dear colleague,
We are pleased to announce that the programme for the 24th European
Frequency and Time Forum, being held 13-16 April 2010 at ESA-ESTEC, The
Netherlands,
Hi..
If the price is right, the 8590 analyzer if healthy makes a good
introduction to that class of instruments, you'll learn a lot.
Yes, they are not the top of the range, but they are not shabby either.
Get yourself signed up to the HP_Agilent group (also on Yahoo) for
detailed info, and they
Hi All,
Found this interesting device last week while looking for a basic PLL to
replace a crystal for an IF offset. Has anyone experimented with the
si570/si571 yet?
www.silabs.com/Support%20Documents/TechnicalDocs/
http://www.silabs.com/Support%20Documents/TechnicalDocs/Si570.pdf
Si570.pdf
I built a kit and found that it wanders 50 Hz at 10MHz.
http://www.cliftonlaboratories.com/si570_kit_from_k5bcq.htm
Found this interesting device last week while looking for a basic PLL to
replace a crystal for an IF offset. Has anyone experimented with the
si570/si571 yet?
It's a very good device.
Used in 1000's of Softrock SDR's arround the world now.
Control software (by various means, including USB) can be found courtesy
of the Softrock40 group, on Yahoo.
http://groups.yahoo.com/group/softrock40/
73.
Dave G0WBX.
--
Message:
Hi
A picture of the end with the markings on it would be a big help.
It looks a lot like a late 50's / early 60's design. I would not count on it's
performance being real good by todays standards.
Bob
On Feb 21, 2010, at 11:18 PM, Larry Snyder wrote:
Hi all --
Looking for any docs on a
Hi to the list
Anyone out there in Time Nuts Land have a working Jupiter receiver (V1.80)
or newer they are not currently using and would like to trade for $$ ?
Thanks !!
Thank You
Kiss-Electronics
Ms Ashley Hall
183 N 5th Avenue
Cornelius, Oregon
97113
W7DUZ
Anybody know what its performance is like under vibration?
Henry
On Mon, Feb 22, 2010 at 5:32 AM, Marco IK1ODO -2 ik1...@spin-it.com wrote:
There are several kits around using the Si570 serires of oscillators. I
built the FA-SY and it's very nice:
Hi
Assuming it's an R1051 standard you then have to know who made it. Some of
the later parts made by the replacement parts empire were of questionable
performance / reliability. The side with the markings likely would tell us a
lot.
Simple answer - when it's not Chinese New Year, the auction
From: Henry Hallam he...@pericynthion.org
Subject: Re: [time-nuts] Are the days of buying a crystal numbered?
Anybody know what its performance is like under vibration?
Henry
Just guessing here . . . poor
Unless it is a specifically G-hardened device, it is sure to be microphonic.
All
Hello Bob,
My 15mA estimate for the output stage was based on AC coupling the
output, which is how I connected it. The IC is then sourcing 25mA into
100R for half the time and sinking 25mA the rest of the time, so the
mean supply current drawn is 12.5mA. The extra is to allow for the IC's
Yes, it is the R-1051 frequency standard, I have one. It was made by General
Dynamics, and was rated, if I recall, at 1x10E-8 per day.
See also this archive at
http://www.mail-archive.com/time-nuts@febo.com/msg02674.html
Antonio I8IOV
Messaggio originale
Da: li...@cq.nu
Data:
Bob Camp li...@cq.nu wrote:
Hi
Assuming it's an R1051 standard you then have to know who made it. Some of
the later parts made by the replacement parts empire were of questionable
performance / reliability. The side with the markings likely would tell us a
lot.
That was the side with the
Last week I bought a very clean 5370B, in near new condition (missing OCXO but
I have a spare one).
It has a HP tag on the top edge of the rear frame, under the top cover, which
says:
Date 12 09 97 5370A to 5370B by 28457
The serial number is 2116A01177. The front panel template is marked
I apologize for having left some unwanted quoted text in my previous post.
Antonio I8IOV
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The trick of including a PLL in an oscillator package has been around for a
while.
The initial ones were programmed at the factory or distributor. The idea was
to avoid the long wait while they polished the crystal to your specific
frequency. They stocked them in a handful of frequencies
Le 22/02/2010 03:02, Alexander Sack a écrit :
Has anyone seen this:
http://www.drdobbs.com/linux-open-source/223000197;jsessionid=LEYQTVQD4D24TQE1GHPCKH4ATMY32JVN?pgno=1
Excuse if its been talked about but I don't see it in my mail
archives. I thought some of the ntpd'ers on this list might
That said NTP is very conservative in validating the stability of
clock sources. I have not delved into the code, but it is obvious
that even a refclock like a GPS receiver doesn't get any favours. Why
should it? Who knows whether the clock is dodgy or not?
The NMEA strings from low cost GPS
I forgot what your goal was, but if you just want an accurate 10 MHz / 1
pps reference, why not just buy a Thunderbolt or Z3805A?
Many on this list have had good results dealing with fluke.l on ebay. I
just did a search (select 'advanced search' and put fluke.l in the
seller field down the
Hello, Time-Nutters--
I am in need of a 110 MHz VCXO for a mixer input to
provide the needed offset for a tracking generator
I am building for my Tek 494P Spectrum Analyzer.
The 110 MHz VCXO only needs to be pullable/pushable
by +/- 100KHz in order to center the tracking gen
signal in the
Hi
If the objective is convergence to 1 ms any timing optimized gps receiver
will do just fine. Non-timing receivers are going to do all sorts of bizarre
things every so often. I don't think we can blame this all on the GPS.
The NTP setup he's running in the article is broken. Setting the
Just to add a little fuel...Did I count the leading zeros incorrectly? He
often stated Timekeeper was better than 1 uSec, yet many of his graphs were
10 uSec per division, and he barely made that.
Regards,
Tom Holmes, N8ZM
Tipp City, OH
EM79xx
-Original Message-
From:
Hal Murray wrote:
The trick of including a PLL in an oscillator package has been around for a
while.
The initial ones were programmed at the factory or distributor. The idea was
to avoid the long wait while they polished the crystal to your specific
frequency. They stocked them in a
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