On Sat, Mar 14, 2020 at 5:35 AM WB6BNQ <[email protected]> wrote: > *By definition a Cesium frequency standard is just that, an absolute > primary reference ! The only difference between the 5061A and another > Cesium reference is a matter of degree of closeness to the absolute > value. For example the 5061A has a spec of +/- 1 in 10 to the -11th for > accuracy, whereas, 30 later, the hp5071 has a spec of +/- 1 in 10 to the > -12th.*
Because the 5061a does not automatically perform c-field adjustment by itself and you cannot perform it without additional equipment (a synthesizer), I wonder if it's pedantically correct to describe the venerable 5061a _by itself_ as a primary reference? The composite system of 5061+synthesizer+person-to-operate-it is a primary reference. Maybe my perspective on this is somewhat warped because I found c-field adjustment on the 5061a to be a bit of a pain. :) Perhaps this is all minutia, but I also though it might be worth reminding people that 5061a is not as plug-and-play as the 5071. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
