[time-nuts] I have a new toy

John Miles jmiles at pop.net
Sun Oct 24 21:23:30 EDT 2010


Neat box.  Pentek has some really interesting hardware.

-- john, KE5FX

> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
> Behalf Of Arthur Dent
> Sent: Sunday, October 24, 2010 6:14 PM
> To: time-nuts at febo.com
> Subject: [time-nuts] I have a new toy
> 
> 
> 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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