Hi Sir ,
If I want to pass the FCC15.247 and it needs to have FHSS function because the chip can't support on BW>500K,
so do you have any suggestion for this question?
You can transmit modulation with a 6dB b/w wider than 500kHz with the ADF7023. On the receive side however the maximum IF filter size is 300kHz so you would experience sensitivity loss. Generally users would implement a frequency hopping scheme unless the system calls for a very low transmit power.
If you are looking to implement 6lowpan there is a support site at:
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