1. Transmissions shall be in plain language and shall be limited to messages of a technical nature relating to tests and to remarks of a personal character. It is absolutely forbidden for amateur stations to be used for transmitting international communications on behalf of third parties.
2. If any message which the licensee is not entitled to receive is nevertheless received, the licensee shall not make known or allow to be made known its contents, it origin or destination, its existence or the fact of its receipt to any person (other than a duly authorised officer of Her Majesty's Government or a competent legal tribunal) and shall not reproduce in writing, copy or make any use of such message or allow the same to be reproduced in writing, copied or made use of.
3. A running record shall be kept in a book of approved type (not loose leaf),of all sending periods showing the date and time of each period and the frequency and type of emission employed. No gaps shall be left between entries in the log. The record of sending periods shall in all cases be initialed at the time of recording by the licensee.
4. The station shall be subject to the approval of the Telecommunications Officer and together with the record of transmissions and this licence shall be open to inspection at all reasonable times by officers duly authorised by the Telecommunications Officer.
5. An amateur station must operate within the band of frequencies specified on the licence and must be so adjusted that no interference shall be caused on frequencies outside of the specified band. Adequate frequency stabilization must be employed and must be in accordance with the Radio Regulations.
6. The licensee shall observe and comply with the provisions of the International Telecommunication Convention and the Radio Regulations.
7. The Station shall always be equipped for the reception of signals sent on frequencies in current use at the station at any time by means of continuous wave telegraphy, telephone and any other type of emission authorised.
8. The call sign, which may be sent by either Morse telegraphy at a speed not greater than 20 words per minute or by telephony, shall be sent for identification purposes at the beginning and at the end of each period of sending, and whenever the frequency is changed. When the period of use exceeds 10 minutes the call sign shall be repeated (in the same manner) at the commencement of each succeeding period of 10 minutes.
9. When telegraphy is used, the letters of the call sign may be confirmed by the pronouncement of well-known words of which the initial letters are the same as those in the call sign; but words in this manner shall not be of a facetious or objectionable character.
10. When the station is used at the temporary premises or the temporary location, or on board a boat, or in a vehicle particulars of the temporary location or of the address of the temporary premises shall be sent at the beginning and end of the establishment of communication with each separate amateur station, or at intervals of 10 minutes, whichever is more frequent. When on a boat or in a vehicle the call sign followed by "Mobile" and the exact location shall be given.
11. No transmission which is grossly offensive or of an indecent or obscene character shall be made.
12. The station shall be closed down at any time on the demand of the Telecommunications Officer or a person acting under this authority.
13. Nothing in the licence shall be deemed to authorise the use of the station for business, advertisement or propaganda purposes or for the sending or receiving of or messages of or on behalf of, or for the benefit or information of any social, political, religious or commercial organisation, or anyone other than the licensee or the person with whom he is in communication.