Thanks all for the replies to my initial query as to whether anyone had any
firsthand experience with this device. The replies have been helpful.
It is also clear that what some see as an apple, others see as an orange. A
simple common truth perhaps which becomes very obvious when comparing the
Hi All,
Just purchased a LEA-6T based board to play with (It's a Synergy Systems
SSR-6Tru). The Ublox web site has some documentation regarding the setup
of these units. In the documentation are some screenshots of what
appears to be a utility for configuration. I haven't seen it on the
Ublox web
Hi Dan,
I think you're looking for the u-center software. Finding software on that
site can be difficult, so it's easier to resort to a websearch. There's a link
to the latest software on this page.
http://www.u-blox.com/en/evaluation-tools-a-software/u-center/u-center.html
As to the
I found the parameters for the X72's 1PPS input. The range of Tau is 5 -
10,000 seconds, or about 2 hrs, 45 min. at the longest setting. It
defaults to 400 seconds. However, mine doesn't have the firmware to enable
the 1PPS input, so it really doesn't matter.
Out of curiosity, does anyone
A while ago I asked about dephasing WWVB. Since them I have tried many things
and finally found one that works. I use my WWVB trf receiver with the squaring
chip at its output. This gives me a dephased 120 KHz signal. In reading the
Tracor manual about their MSK converter I discovered that
I would call that done.
Henry
On Sat, Aug 23, 2014 at 4:38 PM, Bob Stewart b...@evoria.net wrote:
I've had the LEA-6T sitting in survey-in mode for about 17 hours, and at this
point, the u-center software says that the Mean 3D Std Dev is 0.109 meters.
Given that my antenna is just a puck
Charles Steinmetz wrote:
Dave wrote:
does anyone know of any Rb units that can be programmed to a 24 hr
(or longer) Tau, either by EFC or 1PPS input?
The SRS PRS10 has a very versatile PPS input that can discipline its
frequency with a truly comprehensive array of adjustments (to the
point
Dave wrote:
does anyone know of any Rb units that can be programmed to a 24 hr
(or longer) Tau, either by EFC or 1PPS input?
The SRS PRS10 has a very versatile PPS input that can discipline its
frequency with a truly comprehensive array of adjustments (to the
point of potential bafflement).
Hi
The only Rb’s I know of that go out to the 24 to 72 hour tau’s are full blown
GPSDO Rb’s.
Bob
On Aug 25, 2014, at 1:53 PM, Dave M dgmin...@mediacombb.net wrote:
I found the parameters for the X72's 1PPS input. The range of Tau is 5 -
10,000 seconds, or about 2 hrs, 45 min. at the
Hi
There are some periodic errors in GPS that only get averaged in after a = 48
hour survey. It’s not so much a specific error level in meters as much as
averaging in all the “issues”.
Bob
On Aug 23, 2014, at 7:38 PM, Bob Stewart b...@evoria.net wrote:
I've had the LEA-6T sitting in
Hi Bob,
Thanks for the info. I'll have to run a long test to see what the difference
is. Maybe I can capture the XYZ coordinates to the PC during the run.
Bob
From: Bob Camp kb...@n1k.org
To: Discussion of precise time and frequency measurement
I have been offered what appears to be a Trimble GPSDO board. The model
number is 46865-00-BM. From the photos, the board appears to be about the
same size and layout as my NTBW50AA and includes a Trimble STP2254 10 MHz
TCXO module, a USB port, and the same type of backplane connectors as the
Hi
I’d say you have it figured out pretty well.
It’s a TCXO based board for a “short holdover” cell site or something like
that. There is a good chance that it’s got the same plusses and minuses as the
GPSTM plus the degraded ADEV from the TCXO.
Bob
On Aug 25, 2014, at 5:04 PM, Bob
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