User's Guide
3.3 RADIO FREQUENCY TOLERANCE
The transmitted initial center frequency accuracy must be ±75 kHz from Fc.
The initial frequency accuracy is defined as being the frequency accuracy
before any information is transmitted. Note that the frequency drift requirement
is not included in the ±75 kHz.
The transmitter center frequency drift in a packet is specified in Table 3.4. The
different packets are defined in the Baseband Specification.