As noted in my prior email - This thread was closed yesterday.
73,
Eric
/elecraft.com/
On 8/21/2018 10:57 AM, Lee Ormiston wrote:
The cesium and iridium clocks at National Institute of Standards and
Technology through WWV and WWVH broadcasts, provide the time signals to the
Global Positioning System satellites which without time signals to the Wide
Area Augmentation system from WWV & WWVH are not accurate for navigation
purposes. The WWV and WWVH broadcasts also provide the time signals for
satellites and space probes.
These signals also provide the time stability for all the Joe Taylor
communication modes.
The bit about my $30 wrist watch being incredibly accurate is not important
in the grand scheme of things.
73 Lee
NORRL
On Tue, Aug 21, 2018 at 10:05 AM, K2bew <[email protected]> wrote:
Sorry don't agree at all. Emergency communications when everything is down
and people need help is not comparable to a transmitter that puts out the
time according to an atomic clock over radio. You can always use a sundial,
and knowing the time to the second is not necessary in an emergency.
Tom
On Tue, Aug 21, 2018, 9:43 AM Phil Kane <[email protected]> wrote:
On 8/20/2018 7:16 PM, K2bew wrote:
With the internet and phones that use data and or GPS satellites to
constantly synch time more effectively than radio sygnals it does
seem crazy to fund it.
This is the same sort of argument that some folks in the Emergency
Management community raise - why do we need radios when we have cell
phones and the internet. That assumes that the internet and the
cell-phone infrastructure that depends on same will exist when the chips
are down.
I remember being in the studios of a major AM radio station when the
corporate auditor told the chief engineer "this could be a very
profitable operation if we could get rid of this thing called the
transmitter". (Rest in peace, Howie....)
I would suspect that the incremental cost of running WWV and WWVH -
which are mostly "set and forget" operations - is of the same order of
magnitude as the paper towel and toilet paper bill for that agency.
73 de K2ASP - Phil Kane
Elecraft K2/100 s/n 5402
From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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