Dr Bruce Griffiths said the following on 10/22/2006 07:19 PM: > An inexpensive modern time interval counter with a power dissipation of > less than 10 watts and a resolution comparable to the 5370 would be > useful for such comparisons especially if the experiment lasts several > months.
I don't usually use the 5370 for long-term measurements, as it does make a very noticeable amount of heat. Since the long term averages don't really need super resolution, I find that an HP 5334 counter, which has 2ns resolution and dissipates far less heat, works well. My current experiment is using a 5334 along with a GPIB-controlled coax switch (forget the HP number right now) to do 100 second averages of six combinations (CS1-GPS, CS2-GPS, RB1-GPS, CS2-CS1, RB1-CS1, and RB1-CS2) so I end up with a tau of 600 seconds and ~200ps resolution with the 100 sample average. John _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
