"4.(1) No person shall possess, establish, install or use any station in any place or on board any local vessel or aircraft or in any vehicle, unless he has a valid licence granted by the Authority.
"4.(2) Notwithstanding the grant of any license under the Act, in respect of any station, or network no person shall use any radio frequency channel to establish or operate any network unless he has a valid station and frequency user license granted by the Authority...
"27.(3) ...the validity of frequency user licence is subject to payment of annual frequency user licence fees...
"31.(1) The following arrangements shall be adhered for devices using spread spectrum in industrial scientific and medical band -
"(a) devices operating in the band 915 - 928 MHz shall have equivalent Isotropically Radiated power limited to 1 Watt in order to provide adequate protection to services in adjacent bands in particularly GSM base stations below 915 MHz;"(2) All devices operating in industrial scientific and medical bands shall be registered by the Authority.
"(b) devices operating in the band 2.4 - 2.4875 GHz and band 5.725 - 5.875 GHz shall operate with maximum peak transmitter output power of 1 Watt and with effective isotropic radiated power of 4 Watt;...
"(d) Licensees operating on shared frequencies shall accept any interference that may result from the legitimate operation of stations...
"32. The Authority may grant a localised radiocommunication station licence to an approved applicant to use the following equipment -
"(a) remote control devices;
"(b) local area paging devices;
"(c) wireless microphones;
"(d) citizen band transceivers CB walkie talkies;
"(e) telemetry or alarm systems or both;
"(g) low range cordless telephones; or
"(h) any other radio-communication equipment as may be authorised by the Authority from time to time..."