[Elecraft] OT: Changes at WWV, WWVB
Phil Kane
k2asp at kanafi.org
Fri Nov 28 16:42:50 EST 2014
On 11/28/2014 1:25 PM, dave wrote:
> At one time I used a cesium standard to troubleshoot a timing issue when
> clocking the phone network. I think it, in its shipping container,
> weighed about 75#. The container probably weighed less than 15#. A
> cesium standard is fairly heavy. We had to lug it up to the 3rd floor of
> one central office.
Fifty years ago I was a (junior) project engineer on the US Air Force's
first computerized digital message switching system. Each of our
switches used rubidium standards made by National Radio (the same folks
who made the HRO line of receivers). They took up two full relay racks
each, Times have changed!
73 de K2ASP - Phil Kane
Elecraft K2/100 s/n 5402
>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
More information about the Elecraft
mailing list