SPGRF crytal tolerance

Posted on April 04, 2016 at 09:50

Dear Madam, Sir,

Would You inform me about the type of crystal what SPSGRF board uses.

I have developed and manufactured 250pcs Spirit1 boards with this crystals.

http://www.ndk.com/images/products/catalog/c_NX3225GA-STD-CRG-1_e.pdf

All my boards with my radio able to communicate to each other using FC_OFFSET1 = 0 and FC_OFFSET0 = 0 value. But those boards which area mounted the buyed SPGRS can't communicate with my radios. I know a can tune syntesizer of SPSGRF boards to my requirement.

Can You garantee that the your SPSGRF boards will mounted the same crystal in the future? Need I check all buyed SPGRS modul crystal tolerance during manufacturing process all the time in all modul?

Thank Your answare in advance  

Laszlo

ps.

My radio params are

#define XTAL_OFFSET_PPM             0 

#define CHANNEL_SPACE                250000

#define MODULATION_SELECT          GFSK_BT05        

#define DATARATE                     250000            

#define FREQ_DEVIATION              DATARATE/4       

#define BANDWIDTH                    DATARATE *12/10