I doubt there is any information, but the place to ask is the Tekscopes group
on Yahoo! Also Tekscopes2 (schism) also on Yahoo!
Regards,
David Partridge
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Daniel Mendes
Sent: 24 April 2015 04:01
To:
Lady Heather has a display option (G L) for blanking out the location
display... no need to mess with Photoshop...
Ok, my *assumption* is that the location data has been Photoshopped. Normally
that
is not worth commenting on. It’s something that a lot of people do.
Hi
I believe that you will find that all GPS devices are pretty easy to jam when
you
are right on top of the receiver. . The signals are so far down in the mud that
it
does not take a whole lot to mess up tracking them. Your little gizmo is
likely
putting out a signal that is massively
Hello,
The input: HP 5386A which I would like to calibrate, Well warmed Tremble
Thunderbolt (1PPS only), 10 Mhz Datum OCXO (unknown accuracy), Rigol
1101E Oscilloscope.
The goal is to calibrate counter to read the Datum OCXO.
===
Reading the manual for 5386A,
On Fri, Apr 24, 2015 at 12:00 PM, Gary Fiber gfi...@comcast.net wrote:
Turn off the WiFi too. Many cell phones will keep track of WiFi locations
they have come across.
And as I wrote, turn off the cell phone receivers too. They can use
relative distance to multiple towers to triangulate your
Hi
Ok, my *assumption* is that the location data has been Photoshopped. Normally
that
is not worth commenting on. It’s something that a lot of people do.
Past that, yes, the GPS is 10X worse than a “bad location” GPS. There is
something
in trouble there. From later posts in the thread, the
Why not use a T connector to patch the 10 MHz to two places at once?
Bob
On Friday, April 24, 2015 5:06 PM, d0ct0r t...@patoka.org wrote:
Hello,
The input: HP 5386A which I would like to calibrate, Well warmed Tremble
Thunderbolt (1PPS only), 10 Mhz Datum OCXO (unknown
and be very careful, it does not tolerate more than ±2 volts input! it
was originally designed for the CSA 803A and requires a relative
complicated control system, it has a 15 to 18 picoseconds rise time, 50
ohms input, and at least 30dB return loss at 18GHz. If both inputs are
used they
What is the problem withplaccing the GPS antenna all the way up on the
roof ridge? If you can get an iron pipe and make short mast and place
the GPS Antenna a few feet above the top of the roof. Run the pipe
through the roof into the attic and run the coax cable inside the
pipe. This way the
Since I was working at Tektronix at the time, I still remember the first
instruments that were in the family.
Like the main frames 11801, 11802, CSA801, CSA802, CSA803, etc and sampling
heads SD-20, SD-22, SD-24, etc.
You can try a google search like Tektronix 11801 filetype:pdf.
You can also
Currently, 10 Mhz output connected to Linear LTC6957-3 to feed DDS and
MCU for another purpose. Of course I am able to reconfigure (physically
disconnect) it. But I am just curious if its an option to use only 1PPS
for calibration.
Regards,
V.P.
On , Bob Albert wrote:
Why not use a T
Following my request, I am curious about modding of HP 5386A. My unit
has TCXO. Is it possible to replace that existed TCXO by third part OCXO
? Like Morion MV89A, for example ?
--
WBW,
V.P.
___
time-nuts mailing list -- time-nuts@febo.com
To
Just feed the PPS into the scope trigger on step 2.
The low repetition rate on the PPS would make this difficult on an
analog scope; on a digital scope it is easy. You can use any
sub-harmonic that is less than or equal the counter reference frequency
(10 MHz).
Brent
On 4/24/2015 3:45 PM,
Hi Chris, thanks for the feedback... the cost is not a concern, is making
the run to the peak of the roof worth it as far as the GPS reception /
signal is concerned? Where I have a clean view south, is it worth it to
run the coax up through the attic and to the peak of the roof so I get a
totally
In reading the posts regarding a TBolt being interfered with by a close by
GPS antenna/preamp/receiver, I don't have experience with Tbolts and
interference but I do have some with the Z3801. I had my Z3801 running for
a couple of years here at work. The antenna was a marine antenna mounted
about
Gee. my phone has a place in settings to turn the gps off to save power. Am I
being fooled?
Don
Charles Steinmetz
John wrote:
I was interested in building a micro power GPS
jammer to attach to my own phone to keep it from
sending GPS coordinates.
Easy peasy. Open the phone, locate the GPS
John wrote:
I was interested in building a micro power GPS
jammer to attach to my own phone to keep it from
sending GPS coordinates.
Easy peasy. Open the phone, locate the GPS antenna, and wrap it in a
small piece of aluminum foil. I've done several this way.
Best regards,
Charles
Does anybody in this group has any info about Tektronix sample heads
like SD26? I´d like schematics, or at least a pinout of the
centronix-like interface. My google-fu failed me (got only a service
manual that says nothing).
Thanks
Daniel
___
Turn off the WiFi too. Many cell phones will keep track of WiFi locations they
have come across. Gaining that information is as good as GPS and with the cell
phone extraction equipment it is easy to do.
Gary P. Fiber K8IZ
On Apr 24, 2015, at 10:21 AM, Charles Steinmetz csteinm...@yandex.com
Yes, I think those were from the era when service info became sparse -
treated as modules or black boxes - unlike the products from the good
old days, which had much more info available. I believe the SD26 is to
fit in the Tek 11801B or other 11000 series sampling scope setups. A
quick look
On Fri, Apr 24, 2015 at 10:21 AM, Charles Steinmetz
csteinm...@yandex.com wrote:
John wrote:
I was interested in building a micro power GPS
jammer to attach to my own phone to keep it from
sending GPS coordinates.
Can't you just go into settings and turn off Location Services?
THAT would
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