Given the heat this thing puts out, I think I need to cool it if I enclose it. Hopefully a small DC Muffin Fan will do. My plan is to construct a portable reference, not a lab standard.
Thanks for the replies, 73, Dick, W1KSZ -----Original Message----- >From: Mark Spencer <[email protected]> >Sent: Jul 17, 2011 1:07 PM >To: [email protected], [email protected] >Subject: Re: [time-nuts] Muffin Fan and Rb Oscillator > >I've done something similar to this. In my case the Rb out performs the 100 >second adev and re trace specs from the manufacturer with the fan running. I >can't measure phase noise and I only use the rb to occasionally use as a >reference for checking the frequency of an oxco over a time span of an hour or >so. > >I did notice that the current drain of the rb is slightly higher with the fan >running and probably more stable than before. I suspect the heater in the rb > is working a bit harder than before and I may be over cooling the unit. This >might be something to look at if you cool your rb with a fan. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
