FM Subsidiary Communication Authorization (SCA) has been used to broadcast
background music for a long time. Analog audio programs or digital data tra
nsmission services, utilizing SCAs, such as paging, stock market and headli
ne news updates are common in people's daily life. Some demonstrations have
been offered in the past to broadcast fax messages [1] and some studies de
aling with broadcasting video programs over the FM SCA channels [2]-[4],
This paper focuses on using the FM SCA subchannel to transmit bus service s
tatus. This application provides the transmission of accurate status of pub
lic bus transportation services in order to offer better services, The stat
us can be displayed on bus stations display boards or on personal computer
receivers.