79 Special service station means a radio receiving station used exclusively for the purposes of receiving time signals, notices to navigators, epidemiological and medical advice and like services of general utility. Standard frequency means a radio transmitting station used for the purpose of station transmitting standard and specified frequencies of known high accuracy intended for general reception. SECOND SCHEDULE (Section 4 (2)) ANCILLARY POWERS OF AUTHORITY 1. To acquire by lease, purchase, or otherwise, immovable property and to construct buildings thereon. 2. To buy, take in exchange, hire or otherwise acquire movable property, including vehicles, necessary or convenient for the performance of its functions. 3. To maintain, alter and improve property acquired by it. 4. To mortgage or pledge any assets or part of any assets and, with the approval of the Minister, to sell, exchange, let, dispose of, turn to account or otherwise deal with any assets or part of any assets which are not required for the exercise of its functions for such consideration as the Authority may, with the approval of the Minister, determine. 5. To open bank and building society and post office accounts in the name of the Authority and to draw, make, accept, endorse, discount, execute and issue for the purposes of its functions, cheques, promissory notes, bills of exchange, bills of lading, securities and other instruments. 6. To insure against losses, damages, risks and liabilities which it may incur. 7. To enter into contracts and suretyships or give guarantees in connection with the exercise of its functions and to modify or rescind such contracts or rescind suretyships or guarantees.