[time-nuts] BC637PCI

[Scott Mace]

Nigel, thanks for the detailed response.  I noticed the password option in
the advanced menu as well.  I ran it overnight locked to a 1-PPS feed
and it seemed to stay witin +-200ns.  Not spectacular, but within
spec according to the older datasheets.  I am mainly interested in the card
as a timecode generator.  However it looks like it might be more convenient
to just feed the card an external 10mhz and not use the internal oscillator.
Also, the RTC battery is toast, so it looks like I'll be replacing that at
some point.

	Scott

GandalfG8 at aol.com wrote:
>  
> In a message dated 11/10/2008 05:12:11 GMT Daylight Time, smace at intt.net  
> writes:
> 
> Has  anyone "upgraded" the oscillator on an older Datum BC637PCI card to
> the MTI  crystal?  Is it as simple as changing the crystal and adjusting  the
> osc gain?
> 
> 
> 
> ---------
> PS
>  
> Should have added to my previous waffle, I think the answer to this is  
> yes:-)....
> given the need to reset any changed values every time you power down and up  
> again.
>  
> regards
>  
> Nigel
> GM8PZR
> 
> 
> 
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