****************************************************** PR # 41180 3C48 is one of the radio-loud quasar . Especially in radio frequency, its shows us uncommon feature as a quasar. Its large abundance of molecular gas ,which is detected as a CO line emission, indicates that the object had experienced starburst and after that evolvded into quasar. The formation of quasar is unclear regarding to its origine ,but this object may give us a key to understand the relationships between AGN and starburst. To attain this , we propose to get X-ray spectra using ASCA. X-ray spectra will reveal the AGN activity in starburst. ******************************************************