[time-nuts] I have a new toy
Arthur Dent
golgarfrincham at yahoo.com
Mon Oct 25 01:13:33 UTC 2010
I picked up an interesting item on Ebay that I think will
be useful. It is a direct digital synthesizer where the
leftmost knob changes the 4 MSDs from 4,998 , 4,999 ,
5,000 , 5,001 , to 5,002 and the other nine knobs are
decades with the LSD being a .000001Hz step. There is also
a toggle switch on back to double the output to 10MHz but
then the "decades" will go from 0 to 2.0 in .2 steps making
the calculation of the output frequency a little tedious.
Obviously you have to use an external standard to get the
ultimate accuracy but there is a "crude" internal 10811
oscillator that can be used for a quick check. I got it
for less than some people are selling the HP 10811 for on
Ebay so I think it was a good deal. I've never seen one of
these units before. It was made about 1987 but looks like new.
I do love new toys. ;-)
http://farm2.static.flickr.com/1354/5112059771_18197ae84d_b.jpg
-Arthur
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