On 27/07/12 03:17, Tom Miller wrote:
I agree with Ron. Clean the board up real good then do an inspection.
With a microscope if you can get your hands on one. Look for cracked
SMT parts. The high heat from the oven could very well stress the
parts causing a failure. Flux the board up and hit
Ron Ward sayeth:
Hi:
I have been looking at the poor quality solder joints on the oscillator.
If you have a steady hand and a small tipped soldering with silver
baring (about 2% silver) solder, I would re-solder the connections. Many
of them do not look properly wetted and cold. Some of the heat
Hi
Pulsars are an interesting clock. That by no means equates to them being a
better clock than an ion standard or possibly a neutron standard. If you look
at ADEV numbers, there's pretty much no way a pulsar will be anywhere near the
level a good atomic clock can deliver over useful time
The same issue we have for rotating clocks on board of GPSes and
differently rotating clocks on the Earth's surface?
On Fri, Mar 30, 2012 at 12:02 AM, Bob Camp li...@rtty.us wrote:
Hi
Pulsars are an interesting clock. That by no means equates to them being
a better clock than an ion standard
Hello Azelio:
Thank you very much, I use this keyword searched in internet and got many
useful infomation, include some block diagram. Thank you!
Hui
At 2012-07-26 22:55:26,Azelio Boriani azelio.bori...@screen.it wrote:
Search for DMTD, dual mixer time difference.
On Thu, Jul 26,
Hello Bob:
Many thanks for your kindly and detailed explanation, I think I am
completely get it. I have few minicircuit SBL-1 mixer module, but I lacks a
limiter circuit, I deicide to do some test near times. If I have any progress
I will be glad to tell you in this mail list.
By
Sorry for the for sale post but if any one is interested I have a new to me
Datum 1000B that seems to be a few hz high in frequency (after approx one week
of warm up it would only adjust down to approx 10,000,001 Hz.) It might be
usefull for this application. Please contact me off list if
Does anyone know if there is ANY recent active Lightsquared testing taking
place in the SFO area of the US?
I'm dealing with a day-job issue with GPS clocks in the Bay Area showing
GPS unlocked errors from 3rd party equipment.
-Brian, WA1ZMS
On Fri, Jul 27, 2012 at 09:42:49PM -0400, Brian, WA1ZMS wrote:
Does anyone know if there is ANY recent active Lightsquared testing taking
place in the SFO area of the US?
I'm dealing with a day-job issue with GPS clocks in the Bay Area showing
GPS unlocked errors from 3rd party
The Ham expert on this has to be Tom Clark, W3IO, of AMSAT and the TAC system
offered at one time by TAPR. He did a lot of timing professionaly using these
as I recall.
N0UU
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On 7/27/12 6:42 PM, Brian, WA1ZMS wrote:
Does anyone know if there is ANY recent active Lightsquared testing taking
place in the SFO area of the US?
Very unlikely.. they've lost their experimental license.
I'm dealing with a day-job issue with GPS clocks in the Bay Area showing
GPS
Interesting that they use jammers. The guys on the ambulances just wrap the
antennas with the foil from burger wrappers or the like.
On Jul 28, 2012, at 0:34, Jim Lux jim...@earthlink.net wrote:
On 7/27/12 6:42 PM, Brian, WA1ZMS wrote:
Does anyone know if there is ANY recent active
I've had a graph logging on my HP3816A in San Jose. I see one big glitch
on 7/27 ~17:00 UTC. I don't know if it unlocked, nor if it was from
something received, or some jump in my hardware. Other than that one
jump, I don't see anything unusual over the last week or so.
There must be others
Jim-
That's one thing I was afraid of, but did not yet mention to our mgmt. team.
But if Light squared lost their Part 5 license, then I can take them off the
list.
It's a complicated problem that due to the nature of it, I cannot discuss on
the reflector.
But I'm involved via remote reporting
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