General conditions
40.  An Amateur Station licensee shall observe the following conditions:
(a) the station shall only be operated at locations approved by the Authority;
(b) the station shall in all cases be operated by the licensee or by persons named in the licence;
(c)the station and all equipment used or intended to be used by the licensee shall be erected, fixed, placed and used, so as not to cause interference to radio-communications in Singapore;
(d) the licensee shall identify himself by the transmission of the callsign assigned to him by the Authority at the beginning and end of each transmission;
(e)any change in the approved location, equipment, mast or antenna system must be approved by the Authority prior to the change being made;
(f)the licensee shall obtain the approval of all relevant authorities before erecting any mast or antenna to be used in connection with the operation of the station; and
(g)the licensee shall —
(i)keep a running record of all transmission periods showing the date and time of each period of transmission and the radio frequency and type of emission employed;
(ii)preserve the record of each entry made for one year; and
(iii)make the record mentioned in sub-paragraph (ii) available for inspection at all reasonable times by an authorised officer.