Unruh wrote: > The "way better oscillators" I think is primarily oscillators which are > temp controlled (yes heaters) and selected/adjusted. > Nowadays they are as likely to be TCXO's, temperature compensated crystal oscillators, in which the temperature is measured and used to drive a varicap diode, across the crystal, to compensate. I think portable GPS receivers tend to use that approach.
In principle, you can also apply that compensation in software; you just need access to a thermistor that is thermally bonded to the crystal. _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
