Hi Tom,
Two questions - Will the internal TI value still be updated against
GPS in this case (as it is with the TBolt)?
No, unfortunately not.
There is another (better?) command to manually put the Fury/FireFly units
into holdover mode:
SYNChronisation:HOLDover:INITiate
To get out
Gents,
a new version of Z38XX is available for download.
1) It addresses most of the typos that Kit and Murray have found.
2) I detects fractional EFC numbers and changes number formats and EFC scale
according to that.
Enjoy
Ulrich Bangert
www.ulrich-bangert.de
Ortholzer Weg 1
27243 Gross
How do folks like to connect to this RbO ? Do they use a connector ?
Or just solder to the pins ?
If they use a Connector can you tell me the Make Part Number ?
Thanks, Dick, W1KSZ
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Richard W. Solomon wrote:
How do folks like to connect to this RbO ? Do they use a connector ? Or just
solder to the pins ?
If they use a Connector can you tell me the Make Part Number ?
Thanks, Dick, W1KSZ
Cut up a DIP socket. Don't use a nice turned-pin type. Cheap and
nasty ones work
You can physically move Your antenna to the
position that matches some 5 digit exact position. :))
At 00:04 14.7.2009, you wrote:
While playing with getting the Thunderbolt to
supply a more accurate/reliable position, I
came up with a way to filter the lat/lon/alt
data in such a way
How do folks like to connect to this RbO ? Do they use a connector ?
Or just solder to the pins ? If they use a Connector can you tell me
the Make Part Number ?
They are standard 0.025 square pins on a 0.1 (inch) grid. All the connector
companies make something that will work. (probably
Don,
welcome in the boat.
You describe with other words what I am fighting against.
There must be a logic behind which we did not find yet.
I want to understand what is hidden behind all the setting parameters
and find a way to get the 10811 running without degradation but
just disciplining
A an additional batch of Trimble Thunderbolt GPSDOs has become
available.
If interested, you may place your order at:
http://www.tapr.org/kits_thunder.html
If you have questions about the Thunderbolt, please visit the links to
leapsecond.com that are near the top of the previouly referenced
On Tue, Jul 14, 2009 at 03:20:42PM -0500, John Koster wrote:
A an additional batch of Trimble Thunderbolt GPSDOs has become
available.
If interested, you may place your order at:
http://www.tapr.org/kits_thunder.html
Are these gone already?
Sorry, this item is no
Wow, sold out in 4 minutes ;)
On Tue, Jul 14, 2009 at 2:23 PM, Majdi S. Abbas m...@latt.net wrote:
On Tue, Jul 14, 2009 at 03:20:42PM -0500, John Koster wrote:
A an additional batch of Trimble Thunderbolt GPSDOs has become
available.
If interested, you may place your order at:
In a message dated 14/07/2009 21:26:24 GMT Daylight Time,
rdarling...@gmail.com writes:
Wow, sold out in 4 minutes ;)
Not quite, the order link has only just appeared:-)
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You guys are too quick!!!
I knew I should have taken down the 'sold out' sign BEFORE posting the
message, but I forgot and did it backwards.
Try it again.
On Tue, 14 Jul 2009, Sam Carson wrote:
john
The web site says not available
Sam Carson
K4SOC
--
73,
John, W9DDD
On Tue, Jul 14, 2009 at 03:31:11PM -0500, John Koster wrote:
You guys are too quick!!!
Past experience trying for the previous buys has taught me
to order immediately ;)
Thanks John!
73, Majdi, N0RMZ
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On Mon, 13 Jul 2009 13:32:37 -0700, John Miles wrote:
What are you using for the Kvco constant with your 10811-based Thunderbolt?
If you don't back it down to -0.2 V/Hz, the loop's damping factor will be
very wrong, which might confuse the firmware. Check the Kvco, and also do a
factory reset
Why not leave the TBolt original OCXO in place and run the 10811 as a
separate oscillator phase locked to the TBolt OCXO? Then you have full
control over what loop parameters you use in the external PLL, as well
as still having the TBolt loop parameters to tweak if necessary.
DaveB, NZ
-
Dave,
there is a clear answer:
Why shall I do several rounds when I can succeed in one?
If you look to my oadev values achieved with the disciplined 10811
you will see already a significant improvement over the normal TB values
I have seen. But there are clear indications that it shall be
Well, I implemented a test of getting the tbolt to lock in a precise location.
After entering 3D-fix mode, it would fairly reliably output a location within
1 foot of my surveyed (within 4mm lat/lon) spot within 15 minutes of
observations.
The problem is when I see the location match, I
On Tue, 14 Jul 2009 22:28:10 +, Mark Sims wrote:
Well, I implemented a test of getting the tbolt to lock in a precise
location. After entering 3D-fix mode, it would fairly reliably output a
location within 1 foot of my surveyed (within 4mm lat/lon) spot within 15
minutes of
Hi Mark:
0.1 degrees (five decimal places) = 0.00060' = 0.0360 of arc.
If one second of arc is about 100 feet of longitude then the total distance for
0.1 degrees is about 3.6 feet. To get latitude multiply by COS(your lat).
That way you know how far to move the antenna.
But to check
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of Brooke Clarke
Sent: Tuesday, July 14, 2009 3:56 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Accurate Thunderbolt position
Hi Mark:
0.1
Good morning Ulrich
I have a HP/Z3801 for a number of years. My communication program is quite
old. Would you please send me a updated copy of this new version
Thank you.
Ron Hensley
WB6RNH
rchens...@gmailCOM
On 7/14/09, Ulrich Bangert df...@ulrich-bangert.de wrote:
Gents,
a new
I put in as K0 what I measured several times with the 10811
as 'gain' with -0.74 Hz/V. Is that not the right way?
Yes, that's fine. Because the varactor is nonlinear and a small part of the
overall tank circuit C, the tuning gain depends on the adjustment-screw
setting to some extent.
Hi guys,
I am very excited to say that Ulrich's latest Z38xx program now works quite
well on our FireFly GPSDO units.
Very impressive program Ulrich!
I haven't tried it on our Fury's yet, but I am pretty confident it will
work just as well.
Thanks much again Ulrich, great job!
Said
My Ashtech Z12 system has located my g-spot to within 4mm lat/lon and 27mm
altitude. I used the OPUS-RS system to process 1.5 hours of data using 9
baselines to national CORS reference stations and the rapid (1-day) orbits...
not too shabby for 15+ year old technology. The fix should be even
Mark,
Nice work on the Z12. Now one idea for you on the TBolt.
Before you spend too much time trying to nail it down to the
foot or inch you might want to see what effect being off by
a couple feet or meters actually has on your TBolt timing.
For this you want to compare the 1pps output against
Well it started as a simple exercise in Hey, now that really I know where I
am, how close can a Tbolt get. Well, it looks like a foot or so may be
doable. Might be useful for something, even if it does not help the timing
application.
Then the thing showed its stupid limitation of not
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