recorded in the Master International Frequency Register for CD-DE LA HAJJANA, are 0000-2400 hours and there is no possibility of time-sharing without the agreement of the Cuban administration. (5) The Board is aware that there are numerous instances throughout the world of stations that use frequencies outside the 3900 to 4000 kHz and 5068 kHz to 41 MHz bands without fully complying with the provisions of RR 2666, but in most cases this is permitted by the administrations concerned: in many cases, these exceptions have been included in regional agreements. It is the Board's view that, in general, it is up to the administrations concerned to comply with the limitations imposed in RR 2666; however, in the event of an objection, the Board is required to conduct an investigation with regard to this provision. The Board wishes to reaffirm the views it expressed in its telefax dated 2 April 1990, namely, that station Cudjoe Key is operating in violation of article 158 of the ITU Convention (Nairobi 1982) and of Rules 340, 342 and 2666 of the Radio Regulations. The Board again requests that you take prompt action to eliminate this harmful interferente, -..--- 
**Analysis**
The text appears to be a formal communication related to radio frequency usage and compliance with international regulations. It mentions specific frequencies, ITU Convention, and Radio Regulations, indicating a focus on technical and administrative issues. The language used is formal and bureaucratic, suggesting a context of international cooperation and governance.

**Category**
Transport and communication, Science and technology