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The CC1101 is compatible with the IEEE802.15.4g standard (Mandatory mode, FSK 50 kbps). The IEEE802.15.4g is a PHY amendment to the IEEE802.15.4-2006 standard to provide a global standard that facilitates very large scale process control applications such as the utility smart-grid network capable of supporting large, geographically diverse networks with minimal infrastructure, with potentially millions of fixed endpoints.IEEE802.15.4-2006 specifies the use of DSSS which CC1101 does not support, also there are a very limited number sub-1GHz channels defined.
The IEEE802.15.4g is an amendment to the 15.4 specification, specifying e.g. more sub-1GHz bands to be used. CC1101 supports the mandatory mode (50 kbps, FSK) in the 15.4g spec.
