Said, As you say, the M12M has much better short term stability due to it using a TCXO rather than a crystal like the M12+. Even so, I still surround the TCXO with a small piece of foam to isolate it from any rapid temperature changes. You will see much better stability (especially with the old M12+) using this method. This is especially true if the unit is in an enclosure with a fan. As you might guess, thermostatically controlled fans REALLY mess things up.
Randy ________________________________________________________________________ ______________________________________ -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Sunday, September 24, 2006 1:07 PM To: [email protected] Subject: Re: [time-nuts] M12M Receiver Disiplining PRS10 Hi Lee, sorry, forgot to mention, I used both an M12+ and an M12M to do this, no big difference between the two receivers. The M12M has better short term stability (less thermal sensitivity) which doesen't matter with a 7 hour averaging, and better RF sensitivity. bye, Said _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
