Hi guys,
Waas sat 48 (prn 135) is still going strong, much longer than originally
forecasted - it is experiencing a complete avionics failure as you may know.
Has anyone set up tests to see how it's eventual demise may affect timing
accuracy?
One of our FireFly-1A boards can be monitored in
On 07/07/2010 08:11 AM, Said Jackson wrote:
Hi guys,
Waas sat 48 (prn 135) is still going strong, much longer than originally
forecasted - it is experiencing a complete avionics failure as you may know.
Has anyone set up tests to see how it's eventual demise may affect timing
accuracy?
One
Congratulations Joe!!!
Didier
-Original Message-
From: time-nuts-boun...@febo.com
[mailto:time-nuts-boun...@febo.com] On Behalf Of J. L. Trantham
Sent: Tuesday, July 06, 2010 11:44 PM
To: 'Discussion of precise time and frequency measurement'
Subject: [time-nuts] 5061A Problem
Hi
The closest thing I could find were the side adjust parts. They also have flat
on the board parts and 3/8 squares. No sign of top adjust 1/4 parts
Bob
On Jul 7, 2010, at 1:09 AM, Ed Palmer wrote:
It looks like there's still a problem with the trimmers. R17 and R22 are
shown as
Has the Mouser list:
https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=c7ada9ced0
Been updated with the right trimmers, or is right still up in the air?
Lester B Veenstra MØYCM K1YCM
les...@veenstras.com
m0...@veenstras.com
k1...@veenstras.com
US Postal Address:
PSC 45 Box
It has not been updated yet. We're still looking for a good replacement.
On Wed, Jul 7, 2010 at 10:57 AM, Lester Veenstra les...@veenstras.com wrote:
Has the Mouser list:
https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=c7ada9ced0
Been updated with the right trimmers, or is
Not right this sec. Give us a few hours.
On Wed, Jul 7, 2010 at 11:08 AM, Lester Veenstra les...@veenstras.com wrote:
So now would not be a good time to execute a Mouser Project buy.
Lester B Veenstra MØYCM K1YCM
les...@veenstras.com
m0...@veenstras.com
k1...@veenstras.com
US Postal
Q4, the FET seems to missing from the Mouser BOM.
Lester B Veenstra MØYCM K1YCM
les...@veenstras.com
m0...@veenstras.com
k1...@veenstras.com
US Postal Address:
PSC 45 Box 781
APO AE 09468 USA
UK Postal Address:
Dawn Cottage
Norwood, Harrogate
HG3 1SD, UK
Telephones:
Office:
Hi Bob;
When I can buy one of those programmers that runs on the MAC OS,
please let me know.
I would much prefer to offer a fellow enthusiast $20 to provide a
programmed chip then get involved with Windows (even if it would open
the opportunity for Lady Heather...humm). I get too much
Google pic programming mac os turns up many links.
http://www.mactech.com/articles/mactech/Vol.20/20.02/PICMicrocontroller/index.html
http://www.1710.co.uk/cms/pics-on-mac
Stanley
- Original Message
From: Thomas A. Frank ka2...@cox.net
To: Discussion of precise time and frequency
Things like MicroChip's PICStart run nicely on Linux under
wine.
And if you don't want to run wine, there is an open source
program called PICLAB which runs directly on linux, BSD, etc...
I would bet it would run under a MAC too.
-Chuck Harris
Stanley Reynolds wrote:
Google pic programming
Hi Magnus,
Just read up on their website, they cannot disable the WAAS signal because
it would disable all GPS WAAS landing approaches in the USA. A very big
deal. When it fails, they will be landing aircraft with only one GPS bird for
a while, and no backup!
So it will continue to
I would be very happy to provide PIC chips and programming service to
anybody in the continental USA. How about we do this for $10.00 shipped
for the first chip, and $2.50 per chip after that.
Email me privately (rdarling...@gmail.com) if you're interested. I'll stop
taking names next Tuesday
Hi
The hardware for just about any of them will run fine under OS-X. The software
is not available as OS-X native program. The simple answers would be to run it
under Boot Camp or in a Vmware shell. Neither one is really a Mac solution to
the problem though, since you are running Windows on
Hi
I just got through poking at a couple of TBolts with Lady Heather. It appears
that you can indeed get the hardware and software to put the TBolt into single
satellite mode. That may enable a pretty simple GPS common view setup.
One way to do it:
Somebody picks a set of sats and times
On 07/08/2010 12:49 AM, Bob Camp wrote:
Hi
I just got through poking at a couple of TBolts with Lady Heather. It appears
that you can indeed get the hardware and software to put the TBolt into single
satellite mode. That may enable a pretty simple GPS common view setup.
One way to do it:
Hi
Oddly enough I happen to be set up to do 6 common view sats
Bob
On Jul 7, 2010, at 6:56 PM, Magnus Danielson wrote:
On 07/08/2010 12:49 AM, Bob Camp wrote:
Hi
I just got through poking at a couple of TBolts with Lady Heather. It
appears that you can indeed get the hardware and
Bob Camp wrote:
Hi
I just got through poking at a couple of TBolts with Lady Heather. It appears that you can indeed get the hardware and software to put the TBolt into single satellite mode. That may enable a pretty simple GPS common view setup.
One way to do it:
Somebody picks a set of
Hi
From a quick look it's not real clear how you would go about extracting time
from the software suite. It's certainly useful for navigation though.
A secondary gotcha is that the TBolt likely has some internal issues that
distort the data a bit. Running a TBolt on both ends should wash out
Completely agree congrats and thanks for the update.
I may be getting back involved with my 5061a soon now that I have a HP
pico/femto amp meter.
By golly I will go hunting for the elusive I beam current ghost directly off
the tube or at least learn that I can't.
On Wed, Jul 7, 2010 at 6:29 AM,
Hi
From looking at the numbers on a set of TBolt's it's apparent that adjusting
the time constant after they have been on power for a while is a good idea.
Something like:
Start at 10 seconds until pps is within 10 ns for 5 minutes
Run at 50 seconds until the same condition is met
Bump to 200
Bob Camp wrote:
Hi
From a quick look it's not real clear how you would go about extracting time from the software suite. It's certainly useful for navigation though.
A secondary gotcha is that the TBolt likely has some internal issues that
distort the data a bit. Running a TBolt on both
Hi
NIST publishes data on a per satellite basis as well.
WIth all of these the big question will be weather the data is in fine enough
buckets to be useful. I know that back when we had a NIST time transfer modem
that they indeed had all the data to make it work. At least at that time the
That could be done easily with my GPSMon project, just add code :)
The project decodes the TSIP binary format, so it would not be so hard to
decode the packets you need. At the moment, the project does not talk to the
TBolt, and I forgot if the Tx routines are in the code. If they are not and
Hi
I suspect that I only need to decode one of the packets and send one of three
or four specific strings. I could send them blind and hope they work, or
actually confirm they took effect. Either way it should fit in a pretty small
chip.
Thanks!
Bob
On Jul 7, 2010, at 9:55 PM, Didier Juges
Bob,
It would be easy to start a timer when the TBolt reaches a certain state, and
send specific commands after certain times, and restart the sequence if the
TBolt loses lock.
The processor's clock has 0.5% accuracy, which should be sufficient.
There is plenty of code space left in the
Hi
I've been watching a number of TBolt's as they stabilize. Some make it to the
ready for long time constant condition pretty quickly. Others take a *long*
time to get there. There may be reasons for this. If so they are not very
obvious. All of the units are in the same temperature
I have had a lot of fun repairing these units and I have learned a lot from
the experience and from folks on the list, particularly Bert Kehren, Corby
Dawson and John Miles.
If you can think of a way I can help, let me know.
I was able to avoid the need for a pico/femto amp meter. I probably
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