On 07/20/2017 10:08 PM, john liu wrote:
i am sorry.
We generate a GFSK signal with B210 and received the signal with
multiple cc1120.When frequency shift occurred,the cc1120 can not
received the signal.
Also, another b210 has been running for several days without such a
jump phenomenon.
So, sorry to be a bother, but, where did the 3.2kHz frequency shift
measurement come from? The CC1120 is just a GFSK demodulating digital
receiver.
On Fri, Jul 21, 2017 at 9:37 AM, Marcus D. Leech <mle...@ripnet.com
<mailto:mle...@ripnet.com>> wrote:
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
<mailto:johncorad1...@gmail.com>> wrote:
HI Marcus,
internal with TCXO.
On Thu, Jul 20, 2017 at 11:31 PM, Marcus D. Leech
<mle...@ripnet.com <mailto: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 <mailto: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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