RCA-38 and RCA-38(Old)

UEI protocol: not known
IRP notation for RCA-38: {38.7k,460,msb}<1,-2|1,-4>(8,-8,D:4,F:8,~D:4,~F:8,1,-16)+
IRP notation for RCA-38(Old): {38.7k,460,msb}<1,-2|1,-4>(32,(8,-8,D:4,F:8,~D:4,~F:8,2,-16)+)
EFC translation: MSB

These are recently discovered variants of the RCA protocol. They differ from RCA and RCA(Old) only in the frequency, which is 38.7kHz instead of the standard 58kHz.