[Elecraft] OT: Trivia - WWV & so-called "atomic" clocks

Ken - K0PP kengkopp at gmail.com
Thu Jun 2 18:12:52 EDT 2011


        
The so-called "atomic clocks" use the 60 KHZ signal
from WWVB at the NBS transmitter site north of Fort 
Collins, CO.  

The signal level from the station got a bit of a boost 
awhile back when the PA from the decommissioned 
100 KHZ LORAN C transmitter in ND(?) was moved 
to Ft. Collins and retrofitted into the 60 KHZ transmitter.

The 20 KHZ  WWVL rig is/was a beauty ... HB by NBS
and painted bright blue ... with a brush.  Both VLF
antennas are of such High-Q that a thunderstorm overhead
will detune them enough to throw the TX's into overload and
shutdown protection.

73! Ken - K0PP 


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