From:
http://www.npl.co.uk/science-technology/time-frequency/products-and-services/time/msf-outages
"MSF signal off-air
"Please note that the MSF signal has had to be taken off-air from Saturday
evening, 24 May, until late Tuesday, 27 May, at the earliest, due to a
technical fault.
"Further u
Hi All:
This posting is not about splitting milli-seconds or other accuracy stuff, but
I need help and thought of our time-nuts group.
At our Ham club we try to keep accurate time (think wall clock) for logging
certain tests, local and state emergency skeds and coordination with other
EmComm and
On Wed, May 28, 2014 at 6:28 PM, Jim Lux wrote:
> What you need is to program your receiver to give you the raw observables
> (someone on the list can point you to how you do this), and then you need
> to get them in what's called RINEX file format. You submit your RINEX
> formatted files to JPL
hi John
I am new in the list but not in the art
here a lot of manuals
http://exodus.poly.edu/~kurt/manuals/manuals/HP%20Agilent/
Gianni
In 28 maggio 2014, starb...@uplink.net scritto:
> Hello to the time experts,
> I own a nice HP-58503A and I would be happy
> to find a pdf version of the complet
On 5/28/14, 2:11 PM, Tom Holmes wrote:
Thanks Jim.
So if, just for fun since this is time-nuts after all, I wanted to make a
similar measurement in my back yard here in the relatively stable Ohio,
would I be able rig something up to monitor the position changes? Obviously
a lot of averaging of
I'll have to run a quick calculation on the data it presents to see if it is
good enough to use.
Tom Holmes, N8ZM
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Hal Murray
Sent: Wednesday, May 28, 2014 5:33 PM
To: Discussion of precise
Hal, you bring up an interesting point: Is the receiver in a Z3801 inherently
more accurate in position reporting than the receiver in an Adafruit? Somehow
I doubt it, if for no other reason than the improvements in technology.
(Excluding any programming errors that may or may not exist in th
thol...@woh.rr.com said:
> I'm not sure my Z3801 or any of my navigation receivers have the necessary
> resolution to see even 10 mm.
In normal operation (post survey), a Z3801A "knows" the location and uses
that to work out a better time and/or the time with fewer satellites. So you
won't be
Thanks Jim.
So if, just for fun since this is time-nuts after all, I wanted to make a
similar measurement in my back yard here in the relatively stable Ohio,
would I be able rig something up to monitor the position changes? Obviously
a lot of averaging of GPS position data would be needed but I'm
On 5/27/14, 9:21 PM, Chris Albertson wrote:
On 5/27/14, 10:24 AM, Brooke Clarke wrote:
BACK ON TOPIC... What does it take to measure ones distance from the
center of the Earth accurately enough to detect geological movement in
a reasonable amount of time? Measuring distance really is, I
On 5/28/14, 6:04 AM, Tom Holmes wrote:
Which begs the question: just where the heck, exactly, is the center of the
Earth given that it is in the 'middle' of a molten and dynamic core. Are the
satellite orbits so stable and/or measurable around the center of
gravitational pull that the location ca
Which begs the question: just where the heck, exactly, is the center of the
Earth given that it is in the 'middle' of a molten and dynamic core. Are the
satellite orbits so stable and/or measurable around the center of
gravitational pull that the location can be determined from that? Where is
the r
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