[time-nuts] About HP10544A
didier at cox.net
Sun Mar 8 10:47:31 EDT 2009
> -----Original Message-----
> From: time-nuts-bounces at febo.com
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Bruce Griffiths
> Sent: Saturday, March 07, 2009 8:48 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] About HP10544A
> Scott Newell wrote:
> > At 07:41 PM 3/7/2009, Tom Van Baak wrote:
> >> I know *late* model 5245L counters used the 10544A oscillator.
> >> Perhaps others in the group can provide other examples and
> then you
> >> can head off to the online manual sites and grab the info you need
> >> from the PDF files.
> > My 5345A has a 10544A.
> The 10MHz buffer is merely a cascade of 3 ECL line receivers.
How much isolation can on expect to get from that kind of buffer?
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