No i mean what were you measuring? Were you using an external signal generator and what were its specs?
Sent from my iPhone > On Jul 20, 2017, at 9:09 PM, john liu <johncorad1...@gmail.com> wrote: > > HI Marcus, > internal with TCXO. > >> On Thu, Jul 20, 2017 at 11:31 PM, Marcus D. Leech <mle...@ripnet.com> wrote: >>> On 07/20/2017 02:22 AM, john liu wrote: >>>> >>>> >>> What was your tuned frequency in this case? >>> >>> Hi,Marcus, >>> >>> It is 433.05Mhz >> That's about 7PPM. >> >> What was your signal source? >> >> >>> >>>> On Thu, Jul 20, 2017 at 11:46 AM, john liu <johncorad1...@gmail.com> wrote: >>>> Hi all, >>>> We used B210 with TCXO,and run about 2 hours , a 3.2K frequency shift >>>> occurred when the temperature did not change significantly.Is it a normal? >>>> How can we improve this situation? >>>> >>>> thank you. >>>> best regards >>>> John >>> >> >
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