The example frame field 7D - GPSRAW has two bit errors, which lead to a checksum error if CRC is applied. Byte 0x0DA should be 0x46 and byte 0x100 should be 0xde. Both errors originate in a single bit error. With those changes applied to the field, the correct checksum 0xbd9e will be calculated.
The example frame field
7D - GPSRAWhas two bit errors, which lead to a checksum error if CRC is applied. Byte0x0DAshould be0x46and byte0x100should be0xde. Both errors originate in a single bit error. With those changes applied to the field, the correct checksum0xbd9ewill be calculated.