RFM02 Datasheet, PDF (18/24 Pages) List of Unclassifed Manufacturers – Universal ISM Band FSK Transmitter

RFM02
The first 3 bytes compose a 24 bit length ‘01’ pattern to let enough time for the clock recovery of the
receiver to lock. The next two bytes compose a 16 bit synchron pattern which is essential for the
receiver’s FIFO to find the byte synchron in the received bit stream. The synchron patters is followed by
the payload. The first byte transmitted after the synchron pattern (D0 in the picture above) will be the first
received byte in the FIFO.
Important: The bytes of the data stream should follow each other continuously, otherwise the clock
recovery circuit of the receiver side will be unable to track.
Further details of packet structures can be found in the RF ISM-UGSB1 software development kit manual
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