There have been a few television documentaries over the years on the Carrington
event of 1859.
https://www.history.com/news/a-perfect-solar-superstorm-the-1859-carrington-event
-=Bryan=-
From: time-nuts on behalf of David I. Emery
Sent: August 12, 2018
On 8/12/2018 6:55 PM, John C. Westmoreland, P.E. wrote:
I hope this does not happen. I get questions from new Hams that ask, 'How
can I check my antenna easily?' - the quick reply is to check for WWV on
2.5, 5,0, 10.0, 15.0 and 20.0 MHz.
W1AW is far more useful to check ham antennas, since
Well, maybe NIST wants to cut, and maybe not. What happens is, in zero
based budgeting, the chain of command will pass down the line requests
for budgets for the coming year with cuts of varying depth. After a
couple of cuts everywhere, travel for example, an agency will seek
programs that
I hope this does not happen. I get questions from new Hams that ask, 'How
can I check my antenna easily?' - the quick reply is to check for WWV on
2.5, 5,0, 10.0, 15.0 and 20.0 MHz.
Also, from my days in the Merchant Marine until now, I for one will truly
miss this service if it is discontinued,
What bits I have read do seem to indicate its NIST that wants to cut the
service. Since technology has moved beyond the services value which is kind
of true. Just think what they can get for the land the sites on.
Microsemi's comments were interesting in that in some manner there might be
a NTP
On Sun, Aug 12, 2018 at 07:48:52PM -0400, Bob kb8tq wrote:
> Hi
>
> Well???. there???s also the solar flare that vaporizes the planet earth :)
>
> A flare big enough to take out all the sat systems would disrupt a lot more
> than just navigation.
> It also probably is big enough to take out HF
Comment in the link about visiting WWV reminds me of my experience. Many years
ago my late wife and I were roving around Colorado and I telephoned WWV and
asked if I could get a tour. I mentioned that I was a ham, an EE, blah blah.
This had worked before at other installations (not NAA
How exactly does one get submillisecond time of day precision with a
sextant?
(even if sticks and pebbles are thrown into the mix)
I'd say more like ~1 sec precision on a really fine day, it the sextant is
wielded by
a skilled and practiced operator who has apriori knowledge of his location.
And
Group,
This subject needs some additional detail. I found an article with comments at
https://swling.com/blog/2018/08/nist-fy2019-budget-includes-request-to-shutdown-wwv-and-wwvh/
It is not clear whether WWVB will still be available for all of our cheap
"atomic" clocks.
One comment says
Well if the old LF and HF signals go away I am on for yet another wwvb
project and wwv. What the heck.
Creating a AM wwvb is really pretty easy and in fact I have done that.
Can't remember what code that was.
Pretty sure it was basic on SXb2. But the good news is the old BPSK code
isn't needed so
Yep, just like "government shutdowns" where all non-essential people stay home.
(I always wondered why, it they are non-essential they are on the payroll in the
first place, but what do I know, I'm just a taxpayer.) But what gets shut down
first are things like National Parks, which have
all you need for a once a day noon fix is a level surface, a stick, and
some pebbles.
Don
On 2018-08-12 08:29, Scott McGrath wrote:
And with dependence on GPS we have created a serious vulnerability as
too many critical pieces of infrastructure are dependent on a SINGLE
precision timing and
Just a word: When budget cuts are announced, the agencies put the most
valued "stuff" to be cut first, such as the Washington monument, etc.
This is a recognized ploy. When the dust settles, all may be well. . .
Don
On 2018-08-12 12:20, paul swed wrote:
Like all of you I have a few wwvb
Hi
If GPS goes down, you then have Glonass. If Glonass goes down, you have
Galileo. If all of those go down and you are in the
right region, the Chinese and Japanese both have systems you could use.
In terms of *system* failure, there’s a lot of redundancy out there ….. Yes,
you *would* have
And with dependence on GPS we have created a serious vulnerability as too many
critical pieces of infrastructure are dependent on a SINGLE precision timing
and positioning system.
I can use a sextant and have a copy of Bowditch.But they only work on clear
days and nights.
if GPS goes down
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