31 until 30 years old, who are aware of global trends and having value as the identity
as  Indonesia  youngsters.  It  was  first  aired  on  February  27,  2000.  The  mottos  of this  radio  are  smart,  mature,  fun  and  friendly.  It  is  always  updating  the
information about what is something new in youngsters’ world. The information in  the  radio  provides  the  listeners  with  fun  information  on  matters  related  to
music,  education,  entertainment,  career,  and  health.  Source:  Profile  of Swaragama FM radio
The sources of the data were the radio announcers’ utterances that had been collected from September 16 to September 20, 2013. There  were five recordings
taken  from  the  “Sunset  Drive”  program  because  the  researcher  only  got  a permission  to  record  the  program  during  that  time.  The  researcher  chose  five
editions of topics discussed in the prog ram because the “Sunset Drive” program is
five  days  daily  program  and  the  researcher  found  the  phenomena  of  code switching during those editions.
C. Research Participants
The participants of this study were two main announcers and two additional announcers. The four announcers lived in Yogyakarta, X1, X2, X3, and X4. Most
of the announcers graduated from one of Universities in Yogyakarta. Most of the announcers  used  Bahasa  Indonesia  and  Bahasa  Jawa  in  their  daily
communication. When they talked in the radio program, sometimes they switched Bahasa  Indonesia  into  English.  They  learned  English  since  elementary  until
University. The announcers were the participant  of this study.  For supporting the results,  the  researcher  interviewed  the  participants.  The  researcher  interviewed
32 few  of  the  participants  to  get  their  background  that  caused  them  to  switch
languages. Based on the information about their background, the researcher found that  they  learned  English  only  at  school  and  used  Bahasa  Indonesia  or  Bahasa
Jawa to communicate. However, during the broadcasting in the radio, they often created  switch  utterances  subconsciously  when  talking  with  listeners  or  other
announcers. Interview on July 8, 2014 The  principle  of  this  research  consisted  of  recording  the  transcript  of
interaction  between  the  radio  broadcasters  and  listeners  in  various  situations during  the  program.  This  study,  however,  only  used  the  code-switching  of  the
subject  investigated  in  five  recordings  with  different  topics,  for  instance graduation,  jobseeker,  falling  in  love,  Wednesday  diary  and  music.  Since  the
announcers’ utterances in radio program were too broad to be used as a whole, the researcher classified the utterances based on the day of publication and the topics.
The announcers’ recordings were presented in Table 3.1.
Table 3.1. The Data of the Radio Recordings No
The Announcers Date of the recording
Topic
1 X1, X2, X4, X3
September 16, 2013 Graduation
2 X1, X2, X3, X4
September 17, 2013 Falling in love
3 X1, X2, X3, X4
September 18, 2013 Wednesday diary
4 X1, X2, X3, X4
September 19, 2013 Jobseeker banking
5 X1,X2,X3, X4
September 20, 2013 Music
Notes X1
: Announcer 1 X2
: Announcer 2 X3
: Announcer 3 X4
: Announcer 4