"Caveat Lector" wrote in message
news:z4T0f.329$i%.136@fed1read07...
Excellent Brenda -- right on

2nd part of the question - What other information is transmitted?


That depends on the station. Included in the subcarrier set can be such
things as digital or analog SCA (Subsidiary Communications Authorizations)
or RDS signals. IIRC, these are carried in most cases on 76 and 92 KHz
subcarriers, although there is no steadfast rule for use of subcarrier
frequencies, only convention.