In message 727DE1FE9A784A598E49129B80D2C63C@pc52, Tom Van Baak writes:
filename=5071A-xyz.jpg
As far as I can see, two of the tubes have their axis parallel to
the X-coordinate ?
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
From: Jim Lux
I'm looking for an easy way to get current lat lon, when you've got a
GPS-18 hooked up for NTP. That is, the GPS receiver is there doing it's
NTP thing, so presumably it knows where it is.
[]
It's not like ntpd or ntpq have some handy switch that says display
current lat/lon
Hi
If the 1164 was anything like the 1162 they got a lot of use in the crystal
industry. The normal operating mode involved a reset of the frequency every few
minutes. That got them into the cranky category pretty quickly (as in by the
mid 70's).
Bob
On Sep 3, 2013, at 7:43 PM, paul swed
In message 522735c1.6020...@earthlink.net, Jim Lux writes:
And in California, cannot be operated by those under 18, even with the
hands free capability.
Not to mention the fact that you can go to jail if you remove the
fire-warninglabel from the foam-cushion it came packed in :-)
--
GPS 18x PC/LVC 3.90 (August 28, 2013)
Folks, I have received notice of an update to the GPS 18x LVC firmware,
which can be downloaded here:
http://www8.garmin.com/support/agree.jsp?id=4055
Changes made from version 3.80 to 3.90:
Better handling for leap second data storage especially
On 9/2/13 7:21 PM, John Seamons wrote:
Somewhat off-topic but it might help someone out: I've had a tough time finding, and
using, files on the net containing raw GPS signal samples to be used with the various
software-only (or software-mostly) GPS receivers out there. I finally got a file of
I noticed that my old Nokia phones kept time better than computers, then
I learned that the oscillator in the phone is adjusted to match the BTS
carrier [1].
To verify this I ran ntpd in an Android phone synced to a stratum 1
server via USB tethering. (USB has a lower latency and jitter than
On 9/4/13 7:35 AM, Didier Juges wrote:
Jim,
You should be able to piggyback a second serial port in parallel with the one
used by NTP (just the Rx line and ground) and use any NMEA decoder.
It does not even have to be the same computer.
I have a quick NMEA decoder for Windows I wrote some
Jim,
You should be able to piggyback a second serial port in parallel with the one
used by NTP (just the Rx line and ground) and use any NMEA decoder.
It does not even have to be the same computer.
I have a quick NMEA decoder for Windows I wrote some time ago somewhere.
Didier KO4BB
Jim Lux
This is something I've been thinking of doing. And, TI is running a
back-to-school special on the Chronos watch now, $30 shipped.
Looks like this requires manual syncing; I'd like to have it sync
whenever it's in range, but that shouldn't be a big deal. Expand the
video description to get a
Where can one get this for less than $30 shipped??
On 09/04/2013 07:50 AM, Paul Amaranth wrote:
This is something I've been thinking of doing. And, TI is running a
back-to-school special on the Chronos watch now, $30 shipped.
Looks like this requires manual syncing; I'd like to have it sync
I knew I should have included the link
http://e2e.ti.com/blogs_/b/msp430blog/archive/2013/09/01/back-to-school-sale-part-3-ez430-chronos.aspx
Write down the correct coupon code and enter it on the payment screen.
Paul
From: Chuck Forsberg WA7KGX c...@omen.com
Where can one get this for
chuck:
The coupon codes TI get them for $30 is here
http://e2e.ti.com/blogs_/b/msp430blog/archive/2013/09/01/back-to-school-sale-part-3-ez430-chronos.aspx
On Wed, Sep 4, 2013 at 8:24 AM, Chuck Forsberg WA7KGX c...@omen.com wrote:
Where can one get this for less than $30 shipped??
On
Just musing, ran across this:
http://www.analog.com/static/imported-files/data_sheets/ADCMP572_573.pdf
There's a reasonable eval with SMA connectors.
Any comments?
Don
--
The power of accurate observation is commonly called cynicism by those
who have not got it.
-George Bernard Shaw
Dr.
When I bought this elderly 34310-T, the seller (in China) said the midpoint EFC
was about 4 volts. When I installed it, it was actually just under 3, which
was a bit of a surprise. Just before my frequency glitch/drop, it was just a
bit above 2.94. Now, the midpoint is just above 2.90. This
Hi Bob,
it's not +/-100ns on all receivers.
Our Fury GPSDO that uses Motorola designed M12M receivers allow +/-1ns
antenna delay phase adjustment resolution. No effect on timing stability.
Almost all of our other products using uBlox GPS also allow +/-1ns antenna
delay phase adjustment
The 1164 was the last of the family, It required a different cabinet
slightly deeper cabinet.
The 1161 0 to 100kHz, 1162 0 to 1MHz, 1163 30Hz to 12 MHz and the 1164,
10kHz to 70 MHz
Interesting you mention crystals, either a 1161 or 1162 I have has a Bulova
Accutron asset tag one of the few
I have 6 of these things, I've opened one of them. Is anyone interested in
them, are they worth anything, should I put them on ebay? You can see them
here http://s251.photobucket.com/user/DogTi/library/time?sort=3page=1 I think
they're out of UHF Quantar digital repeaters. I have no other
Hi John,
It's not off-topic at all. Thanks for posting. Someday it would be cool if an
amateur precise time project emerged from this effort.
What is not clear from your link is the accuracy or stability of the LO that
was used. It seems to me, for timing purposes, that one would want to have
Hi Lachlan,
Having others to compare against is not so much an issue on this list. Many of
us have Cs, or more.
For GPS 1PPS measurements, for sawtooth removal, for GPSDO, for L1 common view
-- usually 1 ns resolution is adequate, because that's the numerical
granularity of the GPS receiver
Tom, John,
Wouldn't the software be able to remove any LO instability by simple cross
correlation error cancellation by all the carrier phases? After all carrier
phase measurements are concerned with relative phase delays, not absolute
offsets?
In other words the LO and ADC phase errors
Bob,
Forgot to mention that this phase offset feature is built into the GPS
receivers themselves.
Bye,
Said
Sent From iPhone
On Sep 4, 2013, at 13:02, saidj...@aol.com wrote:
Hi Bob,
it's not +/-100ns on all receivers.
Our Fury GPSDO that uses Motorola designed M12M receivers allow
For our timing niche, SDGPS (Software-Defined GPS) doesn't even need to be
real-time. It's the after-the-fact corrections to the LO that are of interest.
Can you elaborate the after-the-fact corrections to the LO point? I
understand that: I can correct the LO after a sample cycle, then use
the
Hi Pete:
The HP 5110 has a phase continuous output when the frequency is changed and was
the basis for early chirp sounders.
http://www.prc68.com/I/HP5100.shtml
http://www.prc68.com/I/RCS-5A.shtml
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
On 09/04/2013 11:25 PM, Said Jackson wrote:
Tom, John,
Wouldn't the software be able to remove any LO instability by simple cross
correlation error cancellation by all the carrier phases? After all carrier
phase measurements are concerned with relative phase delays, not absolute
offsets?
Readers of my newsletter are reporting a strange interruption of their GPS
reception yesterday -- mainly in the northeastern US but also in SC. This is my
first day on this mailing list -- for a while -- so I don't know if this has
been discussed or reported previously. Has anyone else noticed
Hi
Certainly looks like Motorola innards. They are one of the few outfits that
refers to oscillator trim as a warp adjustment. You *do not* want to know
what that oscillator's great grandfather looked like in 1974….
Bob
On Sep 4, 2013, at 4:38 PM, quartz55 quart...@hughes.net wrote:
I have
Tom,
On 09/04/2013 11:05 PM, Tom Van Baak wrote:
Hi John,
It's not off-topic at all. Thanks for posting. Someday it would be cool if an
amateur precise time project emerged from this effort.
What is not clear from your link is the accuracy or stability of the LO that
was used. It seems
Dave
In my experience motorola oscillators were pretty good. They do the job
intended of keeping radios on frequency with an appropriate noise level.
Nice unit its heater looks like it runs on 18v and osc at 8V.
Hard to say how these units compare to what is typically discussed on
Time-nuts I will
Don
It sure looks easy enough to use. I need to dive into the specs to see how
low of a signal the zero crossing behavior works. May check the eval board $
Regards
Paul.
On Wed, Sep 4, 2013 at 2:03 PM, Don Latham d...@montana.com wrote:
Just musing, ran across this:
Hi
Silicon Germanium is one of the materials that have pretty high 1/f noise
corners. The part probably works quite well for fast edges. I would not expect
it to do a very good job on lower frequency / slower speed stuff. I certainly
would not expect it to do well in a DMTD type setup at 1 to
Hi
My guess is that if GPS was down over the northeastern part of the US for most
of a day, you would not have to check with TimeNuts. It would be on the evening
news. Since your typical mobile GPS needs more sats than a timing receiver,
they should drop out first. When the entire car / truck
On Sep 5, 2013, at 9:05 AM, Tom Van Baak wrote:
Hi John,
It's not off-topic at all. Thanks for posting. Someday it would be cool if an
amateur precise time project emerged from this effort.
What is not clear from your link is the accuracy or stability of the LO that
was used. It seems
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