[Code of Federal Regulations] [Title 47, Volume 2] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 47CFR23.48] [Page 222] TITLE 47--TELECOMMUNICATION CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) PART 23_INTERNATIONAL FIXED PUBLIC RADIOCOMMUNICATION SERVICES--Table of Contents Sec. 23.48 Content of station records. (a) For each station in the services under this part, except stations in the international fixed public control service, the licensee shall maintain a technical log of the station operating showing: (1) Signature of each licensed operator responsible for the operation of the transmitting equipment and an indication of his hours of duty. (2) Hours of use of each frequency assignment and type of emission indicating time of beginning and end of each period of operation and points of communication to which each frequency is used (or area if service is pursuant to Sec. 23.53). (3) Hours of use of each transmitter indicating time of beginning and end of each period of operation. (4) Power input to the final stage of each transmitter. (5) Dates and results of each frequency measurement. (b) For stations in the international fixed public control service, the licensee shall maintain a technical log of the station operating showing: (1) Normal hours of operation and dates and times of interruptions to service. (2) Dates and results of each frequency measurement. (3) When service or maintenance duties are performed, the responsible operator shall sign and date the station record giving pertinent details of all duties performed by him or under his supervision; his name and the class, serial number, and date of expiration of his license. (c) For each station having an antenna structure which is required to be obstruction-lighted, appropriate entries shall be made in the station's technical log as required by Sec. 23.39. [38 FR 22481, Aug. 21, 1973]