The Brits are turning their Loran system back on to protect against GPS
outages from jamming or space weather:
http://www.gpsworld.com/uk-switches-on-eloran-for-backup-in-the-english-channel/
--
Chuck Forsberg WA7KGX c...@omen.com www.omen.com
Developer of Industrial ZMODEM(Tm) for
Hi,
The January issue of the article is now available so it would be interesting
to get further comments from members.
Previous comments were generally very critical of this Jim Rowe designed
unit and one in particular commented on the non availability of the source
code for some of the
Actually it has been on all the time - this is just a more extensive
implementation of the (formerly experimental) e-loran 'add-in' to target high
usage areas.
Paul Reeves G8GJA
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of
Message: 1
I was thinking more along the lines of large jitter in the CPU clock. A clock
shortened by 1/8th cycle could play havoc with CPU operation. Of course you
could do the experiment to see what happens. Or you could divide by 10 and only
worry about the rest of the problems.
Simon
Hi Chuck, It never went off!! The French are spear-heading this. An
experimental eLoran station was run from Rugby (GBR site) before it finally
closed then the gear was relocated to be run by VT Communications, now
Babcock I believe, based on Anthorn (south bank of the Solway Firth). This
uses
Hi
There are a number of counters that are a lot better than what you have.
There's also a limited amount of money in the universe. I'd suggest setting a
rational budget and time frame. This is all used gear. You *might* get a
perfect one that never ever breaks. More likely you will need to
Thank you Bob, Ed, Magnus , ..and all.
Excellent reviews, ...detailed and clear. I REALLY do appreciate it.
HP has turned out so much equipment over the years, it is often good to see
a comparison. This was excellent.
I'll wait for a good deal, and don the road bid alongside many of
Hi
Keep in mind that the good prices are generally for gear that is in the
don't know if it works at all category. The prices go up quickly for stuff
that has had even basic checks run on it.
It's rare to find any of this stuff with a believable iron clad guarantee /
certification that it runs
In message 3B5BC99D4C814337985A6DE70F6AAC60@gnat, Alan Melia writes:
Most of the financers of the Baltic Sylt chain do not seem
enthusiastic but it remains on (I believe subsidised by the French)
I belive UK and France carries the entire cost of the NELS chains now.
--
Poul-Henning
On 01/09/2013 05:39 AM, Ed Palmer wrote:
In the past there has been much discussion on this list regarding the
relative strengths and weaknesses of the 5370 (20ps resolution) and the
5371/5372 (150ps resolution) units. There are other units that have even
better resolution, but they tend to be
I bought a Thunderbolt via TAPR some time ago which came complete with an
Ault SW-305 PSU. For some reason I can't find the documentation that came
with it and don't have the wiring colour codes. A diligent search of the
internet hasn't thrown up anything -- can any kind soul please assist?
Hi John
The information below was posted to the list by another member back in
2008.
I never used the SW305 power supply with mine and haven't confirmed these
connections, so the Check before use is still very good advice:-)
Regards
Nigel
GM8PZR
---
CHECK
I bought a Thunderbolt via TAPR some time ago which came complete with an
Ault SW-305 PSU. For some reason I can't find the documentation that came
with it and don't have the wiring colour codes. A diligent search of the
internet hasn't thrown up anything -- can any kind soul please assist?
and don't forget the PM6681 (50pS)
On Wed, Jan 9, 2013 at 7:29 PM, Magnus Danielson mag...@rubidium.dyndns.org
wrote:
On 01/09/2013 05:39 AM, Ed Palmer wrote:
In the past there has been much discussion on this list regarding the
relative strengths and weaknesses of the 5370 (20ps
On 1/9/2013 12:48 PM, Azelio Boriani wrote:
and don't forget the PM6681 (50pS)
The PM6681 was sold by Fluke/Philips. The same counter is also
occasionally seen as the Pendulum CNT-81. Additional good features:
small, light, and quiet.
On Wed, Jan 9, 2013 at 7:29 PM, Magnus
I kept putting off buying a nice counter and finally decided to try a phase
detector circuit to compare 10 MHz standards. It’s not novel, but I like the
results so far. It lets me see things I couldn’t see before. I thought the
idea might be useful to some of us who are equipment-limited.
Hi Bob,
Thanks for sharing that. Many of the atomic clock phase comparators from the
70's and 80's were based on this time-honored technique. The use of different
taps/scales is clever.
Note that once you have an ascii data file from LabJack you can feed that into
John's TimeLab program for
Bob Quenelle wrote:
I kept putting off buying a nice counter and finally decided to try a
phase detector circuit to compare 10 MHz standards. Itâs not novel, but
You might want to try this phase detector instead of reinventing the wheel:
On 01/10/2013 12:02 AM, Rex wrote:
On 1/9/2013 12:48 PM, Azelio Boriani wrote:
and don't forget the PM6681 (50pS)
The PM6681 was sold by Fluke/Philips. The same counter is also
occasionally seen as the Pendulum CNT-81. Additional good features:
small, light, and quiet.
A bit more history
in progress,
but this project seems useful for now.
-- next part --
A non-text attachment was scrubbed...
Name: Phase-8-4015.GIF
Type: image/gif
Size: 18956 bytes
Desc: not available
URL:
http://www.febo.com/pipermail/time-nuts/attachments/20130109/181e7fca/attachment.gif
20 matches
Mail list logo
