b. interoperability of analogue and digital television sets. Article 62 Wireless transmission equipment Transmission equipment for wireless electronic communications may only be possessed, established or used with the permission of the PTA. Wireless electronic communications may, however, be operated without special authorisation if it is used solely for public electronic communications services in a specific frequency range. PTA shall issue licences to use wireless communications for limited periods. The licences may be made subject to conditions, for instance on the transmission power, location, bandwidth, transmission area and connection to public electronic communications networks. Licences shall be issued in the name of the equipment owner and are not transferable. A licensee who sells wireless equipment, for which he/she has obtained a licence, or turns it over to another person permanently is responsible for notifying PTA of the new owner. PTA shall immediately take measures to suspend the operation of wireless transmitters, including broadcasting transmitters, for which no licence has been issued and which are not exempted from licensing obligations. PTA inspectors undertaking such action may not be interfered with, provided they have produced their professional identification. PTA may grant exemptions from the licence provision for specific types of transmission equipment. No licences are required for transmission equipment with a maximum radiated power of 50 milliwatts. Article 63 Electronic communications equipment in means of transportation Icelandic vessels, aircraft and other means of transportation shall be equipped with electronic communications equipment in accordance with international conventions and regulations1) issued by the Minister of Communications. Electronic communications equipment aboard foreign vessels, aircraft or other means of transportation which are in Icelandic territorial waters or air space may only be used in accordance with Icelandic law and regulations. PTA may prohibit the use of electronic communications equipment in foreign means of transport within Icelandic jurisdiction if such usage is contrary to Icelandic regulations. Notwithstanding the provisions of the second paragraph, PTA may authorise the use of equipment approved for use internationally. 1)Reg. 53/2000. Article 64 Restrictions on electronic communications due to interference The Post and Telecom Administration may have an electronic communications facility sealed off, in whole or in part, prohibit its use or, depending upon the circumstances, take it into custody under seal, if the electronic communications facility interferes with other electronic communications or there is a danger 27/34