Hello, Not unusual at all. It is 4.9152 * 4 and also 6.5536 * 3, both quite common numbers :). It easily divides to standard serial baud rates (38400 * 16 * 32 ).
Regards, Javier, EA1CRB Rex wrote: >I have an HP Z3816A GPS timing receiver. It has 4 of its output >connectors at 19.6608 MHz. I gather this was for cellular telephone >service. > >Just curious... 19.6608 MHz seems like an unusual frequency. Is there >some logical reason why that frequency was chosen for this application? >I see this is 12C0000 in hex (or 300 * 65536). I guess this may be part >of the reason. Would be pretty easy to divide down to 0.01 second >intervals. > >I've been thinking of trying to hack the circuit board to convert the >drive for these 4 outputs to also be at 10 MHz. I wonder if anyone else >has already done this and could save me a lot of circuit tracing. > >-Rex > > >_______________________________________________ >time-nuts mailing list >time-nuts@febo.com >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > > > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts