[R-390] WWV shut down. Alternate calibration methods

[Gordon Hayward]

I'm using a GPS receiver ($20) to discipline an OCXO ($120) at 10 MHz.


Clocks etc. use WWVB because 60 KHz is ground wave so the doppler is not an issue and the path length is constant. I built an up converter so I can get WWVB on the 390AInteresting note: at the speed of light, 1 nS is very close to 1 ft.


I did get QSLs from both - 'At the tone..." was too easy so I decoded the subaudible modulation on WWV. WWV was QSL number 29608 and WWVB was 217.


Another note, one of the big prion labs in the US is in Ft. Collins near WWV and one in Canada is in sight of CHU. Interesting (but off topic) trivia.


Cheers,

Gord, VE3EOS

________________________________
From: r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> on behalf of Bob kb8tq <kb8tq at n1k.org>
Sent: Wednesday, August 15, 2018 8:59:44 PM
To: Ron.K3PID
Cc: R-390 Forum
Subject: Re: [R-390] WWV shut down. Alternate calibration methods

Hi

I think you have WWVB and WWV confused. The wall clocks / weather stations these days
all use the 60 KHz WWVB signal.

Bob

> On Aug 15, 2018, at 7:07 PM, Ron.K3PID <ron.k3pid at sbcglobal.net> wrote:
>
> What about the millions ( Yes millions) of clocks, weather stations, etc that use the 5 MHz WWV signals? They can't possible expect to just dump that support! Maybe it's a long term thing say over 10 years or something...
>
> Ron K3PID
>
>
>
> -----Original Message----- From: Robert Meadows
> Sent: Tuesday, August 14, 2018 9:15 AM
> To: 'Larry H' ; 'R-390 Forum'
> Subject: Re: [R-390] WWV shut down. Alternate calibration methods
>
> Just how does NIST expect that shutting down WWV will not have a serious
> effect on the measurement of time?  Any other time signal is fraught with
> failure, especially if it is internet based.
> The internet will be the first major "failure" in the event of gummite run
> amuck.
> R
>
> -----Original Message-----
> From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
> On Behalf Of Larry H
> Sent: Tuesday, August 14, 2018 4:50 AM
> To: R-390 Forum
> Subject: [R-390] WWV shut down. Alternate calibration methods
>
> I just read that the NIST has an item in the 2019 budget to shut down 'NIST
> radio stations in Colorado and Hawaii'.  I assume this is WWV and WWVH.
> Here's a link to the NIST budget:
>
> https://www.nist.gov/director/fy-2019-presidential-budget-request-summary/fu
> ndamental-measurement-quantum-science-and
>
>
> If they do go away, how can I calibrate my equipment?  I only know using
> WWV.
>
> Regards, Larry
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