[time-nuts] Time Signals on TV signals

W4wj at aol.com W4wj at aol.com
Wed May 27 18:19:48 EDT 2009


Mark...
 
AH...   You are correct sir!!   I was  thinking of where I kept mine...   
;-)
 
TNX for the correction!!
 
 
73, Don, W4WJ  
 
 
 
 
In a message dated 5/26/2009 10:02:26 P.M. Central Daylight Time,  
mhuffstutter at seanet.com writes:



Don,
I think
you might have dropped a zero there typing, They actually  allow
us
+/- 10 Hz on burst.

Best  Regards,
Mark

>
Unfortunately "cesium passthru" went away with  the advent of the

> use of frame synchronizers to receive the  network signal and
then 
> re-clock it to match the local sync  generator phase and
frequency. 
> 
> The FCC requirement for  the color burst
signal (3.579545 MHz) 
> is plus/minus 1 Hz... and  you can
certainly do better than that with 
> most  rudimentary
oscillators. 
>  




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