 In mode S=8 there are eight symbols per data bit with a Pattern Mapping P=4 producing contrasting symbol sequences - a 0 bit is encoded as binary 0011 and a 1 bit is encoded as binary 1100.In mode S=2 using P=1 the range doubles approximately, while in mode S=8 using P=4 it does quadruple.The "LE Coded" transmissions have not only changed the error correction scheme but it uses a fundamentally new packet format.