On 10/08/2010 08:09 PM, Brooke Clarke wrote:
Hi John:
The WAAS birds may be too weak to receive with an omni antenna, hence
the desire to get some gain.
The normal GPS sats will pass through the beam and the GPS antenna will
pick up some sats directly so you do get some TRAIM.
Doppler is not an
Well I remember them at least I think we are speaking of the same domes.
The ones I am thinking of are just south of moffet field though those were
actually dishes.
Anyhow being a bit interested and in the navy at the time. Drove on to
moffet field no problem with a navy truck and drove through an
Hi Dave:
Yes, it was right on the central expressway and was part of the GTE
military electronics complex.
Hi John:
My recollection of the antennas at the Blue Cube is that they are out in
the open. See photo at:
http://en.wikipedia.org/wiki/Blue_Cube
Have Fun,
Brooke Clarke
On 10/8/2010 1:48 PM, Magnus Danielson wrote:
I would not be supprised if they had not considered such a threat.
This is a common threat for all bent-pipe birds. They have been jammed
before and we can expect them to be jammed again. However, I do not
think the WAAS or any similar is
Hi Magnus:
Stanford Telecom built GPS simulators to test their GPS ICs. It's made
where each wire wrap PCB is based on a page from ICD-200.
http://www.prc68.com/I/5001A.html
Have Fun,
Brooke Clarke
http://www.PRC68.com
Magnus Danielson wrote:
On 10/09/2010 04:47 PM, Matthew Kaufman
On 10/9/2010 8:00 AM, Magnus Danielson wrote:
Hmm. Yes. Creative! Once demonstrated essentially all WAAS/EGNOS/SBAS
sats need to develope some protective measure.
Unless, of course, such protective measures already exist. I can think
of several ways right off the top of my head... one would
The reason for the dishes could well have been for comunications with the
Blue Cube as that place was/is? the headquarters for the Air Force
Satellite Control Facility.
Maybe you remember The Brass Rail... the nudie bar across the street
from the Lockheed main gate?
-John
Well
Matthew Kaufman wrote:
On 10/9/2010 8:00 AM, Magnus Danielson wrote:
Hmm. Yes. Creative! Once demonstrated essentially all WAAS/EGNOS/SBAS
sats need to develope some protective measure.
Unless, of course, such protective measures already exist. I can think
of several ways right off the top
About the only doors in the place that did not have electronic combo locks
were the bathrooms.
Sad to see it's being shut down. IMO, it was one of the kewl places to be
in the heddy early days of space.
OTOH, it probably makes some sense to muve the thing into the bowels of a
mountain somewhere.
On 10/9/2010 8:22 AM, jimlux wrote:
Unlikely that this would be in the open literature. It's pretty
clearly one of those things that falls under export control.
Quite likely. The threat itself hasn't been mentioned as far as I can
tell, either... as someone who relies on GPS timing for
Hi
The Russians have been willing to sell GPS jammers for quite a while. They
aren't terribly expensive. Their export controls are a bit different than the
US's.
Bob
On Oct 9, 2010, at 12:00 PM, Matthew Kaufman wrote:
On 10/9/2010 8:22 AM, jimlux wrote:
Unlikely that this would be in
But unlike the threat I described, they're not pre-mounted in geo orbit over
the US... As far as we know.
Matthew Kaufman
(Sent from my iPhone)
On Oct 9, 2010, at 9:16 AM, Bob Camp li...@rtty.us wrote:
Hi
The Russians have been willing to sell GPS jammers for quite a while. They
aren't
Hi John:
Was at the Brass Rail decade ago. Later read the Russians were also
there during the cold war.
Have Fun,
Brooke Clarke
http://www.PRC68.com
J. Forster wrote:
The reason for the dishes could well have been for comunications with the
Blue Cube as that place was/is? the
I have no doubt it's be a good snooping ground for the Ruskies. Lotsa guys
from spooky places, booze, and naked women. Lunchtime featured a gal with
a big snake... and little else. LoL.
-John
Hi John:
Was at the Brass Rail decade ago. Later read the Russians were also
On 10/9/2010 7:40 AM, Brooke Clarke wrote:
Hi Dave:
Yes, it was right on the central expressway and was part of the GTE
military electronics complex.
That building existed from 1963 until 1990 at the GTE Sylvania complex
that was at 500 Evelyn... right at Central Expressway and 237. Can't
On 10/9/2010 11:43 AM, Matthew Kaufman wrote:
On 10/9/2010 7:40 AM, Brooke Clarke wrote:
Hi Dave:
Yes, it was right on the central expressway and was part of the GTE
military electronics complex.
That building existed from 1963 until 1990 at the GTE Sylvania complex
that was at 500
Have you considered an H Field Loop antenna.
We built a quantity of these to dramatically increase sensitivity and reduce
EMI on our LF tracking RXs (now obsolete)
Some details are still on our web site under RF microwave components.
Yours
Clive Green
CEO
Quartzlock
+ Gothic, Plymouth
Bob Camp wrote:
Hi
The Russians have been willing to sell GPS jammers for quite a while. They
aren't terribly expensive. Their export controls are a bit different than the
US's.
Bob
Simple GPS jammers are pretty easy, since consumer GPS is very
vulnerable to repeater jammers. Hmm I
Since this warning made the list, it must be answered in the list:
Scott McGrath returned my HP5065B manual (by FedEx, no less). It is
back safe and sound. All is well.
Thanks Scott!
-Chuck Harris
Chuck Harris wrote:
PM sent.
-Chuck
scmcgr...@gmail.com wrote:
Yes I do have the manual -
Chuck,
I'm glad you finally got it back.
Best,
-John
===
Since this warning made the list, it must be answered in the list:
Scott McGrath returned my HP5065B manual (by FedEx, no less). It is
back safe and sound. All is well.
Thanks Scott!
-Chuck Harris
Chuck Harris
On 10/09/2010 09:47 PM, jimlux wrote:
Bob Camp wrote:
Hi
The Russians have been willing to sell GPS jammers for quite a while.
They aren't terribly expensive. Their export controls are a bit
different than the US's.
Bob
Simple GPS jammers are pretty easy, since consumer GPS is very
On Oct 9, 2010, at 12:47 PM, jimlux wrote:
Simple GPS jammers are pretty easy, since consumer GPS is very vulnerable to
repeater jammers. Hmm I wonder if that would adversely affect a GPSDO?
Probably not, since the repeated signal is just as stable as the original one.
I would think that
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