[time-nuts] Racal-Dana 1992 Information Wanted

Ed Palmer ed_palmer at sasktel.net
Fri Jun 24 06:41:25 UTC 2011

The HP 5370B is spec'ed for a single-shot time interval resolution of 20 
picoseconds, not 10 nanoseconds.  The Racal 1992 is only spec'ed at 1 

If you're thinking of buying a Racal 1991 or 1992, watch out for bad 
switches.  One type of switch that was used is failing due to age.  If 
one switch is gone, they will all fail soon.  I noticed that one of the 
units for sale says that some of the switches are bad.  Maybe that's why 
the price is low.


Perry Sandeen wrote:
> List,
> Being fatally infected with the Time-Nuts disease I’m inclined to spend ever more amounts of money in pursuit of greater minutia.  Thus the question of the Racal-Dana 1992.
> I have at present two HP 5370B units which are spec’d to 10 nS resolution IIRC.  I believe it was posted on this list that the 1992 was spec’d to 1nS resolution.  As there are now several available on epay at more favorable prices in the past, is there any advantage to the 1992 that the HP may lack? (Other than a neato front panel.) Or should I save my shekels for a TEK 2252?  Or both?
> Opinions welcomed.
> Regards,
> Perrier
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