On 5/8/2015 2:19 PM, Bob Camp wrote:
On May 7, 2015, at 11:09 AM, Attila Kinali att...@kinali.ch wrote:
On Wed, 06 May 2015 18:09:03 -0700
Richard (Rick) Karlquist rich...@karlquist.com wrote:
A standard input on a frequency counter is not a very demanding thing in the
hierarchy of
HI
I’d bet that the ACE is supplying full time / date info to the TS2100. That’s
what
every module I’ve seen does. No reason to play with the GPS weeks if you don’t
have to. Use the date from the receiver.
Assuming that’s correct. You have a lot more to do than flip one bit in at one
point
A bc635 can be had on eBay for almost nothing. It's not a pleasant piece of
gear, but this is one task it can help you with greatly.
Tools exist to let you analyse the stream extensively, and the Api is
trivial to learn -but not super featured at the high level.
On Tuesday, May 19, 2015, Tim
Joseph Gwinn kirjoitti:
I'm studying up on how IRIG-B decoder circuits work. What are the good
approaches, the bad approaches, especially in the presence of noise?
(I asked on the NTP group, with little result beyond the C/C++ decoder
software written for the audio channel of a 1990s Sun
Hi
The gotcha is that the GPS numbers are related to a geoid model and not to sea
level.
You can indeed find points that are “underwater” based on the geoid, but quite
dry in
real life (and vice-versa).
Bob
On May 19, 2015, at 12:26 PM, Demian Martin demianm@gmail.com wrote:
I would
Hi
The Iridium frequencies are even further “up band” than the Glonass signals.
None of the
“GPS” antennas that I have tried work very well on Glonass. I doubt they would
do well
at all trying to get Iridium.
Bob
On May 19, 2015, at 1:57 AM, David I. Emery d...@dieconsulting.com wrote:
Hi Bob,
I just got back from my son's commencement ceremony, and finally
have a little time to maybe give a few pointers.
First, safety prevents one from trying to run too many different
applications within a given wine sandbox (aka bottle). It is
best to give each application its own sandbox,
If it's not a reporting error as below, you could be getting signal bounce,
making it look as if your antenna is underwater, andreducing the time
accuracy - you could try bumping your elevation mask by 5 degrees,
to see ifyour position improves.
On 2015-05-19 13:45, Dave Martindale wrote:
Which
jim...@earthlink.net said:
Why iridium? Why not Sirius or XM or DBS.
What's the signal strength at the surface of the Earth?
--
These are my opinions. I hate spam.
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On Mon, May 18, 2015 at 09:52:03PM -0700, Jim Lux wrote:
Why iridium? Why not Sirius or XM or DBS. Unless you want something
world wide, as opposed to populated areas served by broadcast radio and
TV
Well it seems to me I remember Iridium is time domain duplex
around 1610 MHz or
Have you seen the orbit of the Sirius satellites?
http://www.tiger-usa.com/satellite_animation.htm
Dave
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf
Of Jim Lux
Sent: Monday, May 18, 2015 21:52
To: time-nuts@febo.com
Subject: Re: [time-nuts]
I would buy that (Google Maps being off) except that I'm less than 2 miles from
the SF bay and -5M would have me underwater. That may well happen but not for a
few years at least. Also the Arbiter does match Google maps pretty closely. It
doesn't really matter a lot, just a curiosity.
I'm studying up on how IRIG-B decoder circuits work. What are the good
approaches, the bad approaches, especially in the presence of noise?
(I asked on the NTP group, with little result beyond the C/C++ decoder
software written for the audio channel of a 1990s Sun workstation,
which it ate
Not necessarily, you are assuming a single large jammer you could easily
disperse a large number of small narrowband jammers over an area you wanted to
deny GPS coverage to via airdrops or artillery and that would effectively deny
coverage and make it almost impossible to suppress all the
Joe,
On 05/19/2015 03:51 PM, Joseph Gwinn wrote:
I'm studying up on how IRIG-B decoder circuits work. What are the good
approaches, the bad approaches, especially in the presence of noise?
(I asked on the NTP group, with little result beyond the C/C++ decoder
software written for the audio
See for example the Truetime 820 decoder. Discriminators, One-shots, and
Flip-Flops with pots to tweak the levels.
Tim N3QE
On Tuesday, May 19, 2015, Joseph Gwinn joegw...@comcast.net wrote:
I'm studying up on how IRIG-B decoder circuits work. What are the good
approaches, the bad
Hi everyone,
I'm looking for the enclosure, top and bottom panels and inside frames
from an HP 8620 A,B, or C.
Can be gutted, and all the goodies removed from the front panel.
I just need the frame and outsides for a project. (rear heatsink intact
if possible.)
Anybody have a gutted one I can
Which altitude do you have the Thunderbolt set up to report?
If you have the datum set to WGS-84, the Thunderbolt can report either HAE
(height above ellipsoid) or MSL (height above the geoid model) in its
serial output. The choice is controlled by bit 2 of byte 0 of the 0x35
command packet.
Back from Dayton and found in my mailbox a PLJ-9VFD-A9 digit frequency
counter block. Fresh from eBay. Very nice piece of gear for about $20. It
has a 13 MHz voltage controlled time base marked 1300446 TW 499K. Pin out
seems standard and the Voltage Control on pin 1 simply goes to a (I
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