8.1 eV or 153 nm is in the vacuum ultraviolet. You might want to buy
a little stock in KM labs at
https://www.kmlabs.com/news-and-events/hyperion-vuv-talk . I had no
idea that lasers like that were possible. Such atomic clocks should
be able to see 1 mm difference in altitude between them.
On
Unwind a foot or so of wire and measure the resistance to figure the wire
size. If possible, then unwind the entire choke to find its proper
resistance. This will determine the original value from the inductor data
sheet. If not calculate the resistance from the volume of the winding.
On
I am working on a readible copy. This isnthe best that I can do for now
from January 73 of 1994.
https://archive.org/details/73-magazine-1994-01/page/n11
On Thursday, January 2, 2020, kc9ieq via time-nuts
wrote:
> Services for our fallen fellow time nut Bob Roehrig are this Saturday
> January
That was the first time that I had seen an xy plot of WWV versus a
stable crystal oscillator. It is even worse than I thought. I had to
look up FRK to see that it is a rubidium standard. I talked to Jim
Maxton the chief engineer of WWVB many times around 1995. At the time
I was in Gila Bend 80
HF propagation of WWV or WWVH is horrible compared to VLF propagation
of WWVB at 60 kc. In this video the 5 mc WWV signal from Ft Collins,
Colorado is being received in New Jersey. It was compared against a
stable 5mc crystal source. You can see a shift of a few cycles per
second over a few
A search for the Navy designation O-1695A/U for the HP5062C cesium
clock leads to an interesting webpage for the history of Navy time
dissemination, http://www.navy-radio.com/freq-equip.htm . It claims
that the service manual for it is 0969-LP-171-6020 . That manual
could not be found on line.
