CO537-4320 — Page 53

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(19) Frequency assigned to а station means the mid- frequency of the band of frequencies in which the station is author- ised to work. In general, this frequency is that of the carrier

wave.

(20) Frequency tolerance" means the maximum deviation permissible between the frequency assigned to a station and the actual frequency of emission.

(21)

"

General telecommunications system includes the whole of the existing channels of telecommunication open to the public service, except the radiocommunication channels of the mobile ser- vice.

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(22) Government telegrams and radio telegrams means those originating with

(a) the Head of a State;

(b) a Minister who is a member of a Government;

(c) the Head of a colony, protectorate, overseas territory or terri- tcry under suzerainty, authority or mandate of the Contracting Govern. ments;

(d) Commanders in Chief of military forces, land, sea or air; (e) diplomatic or consular agents of the Contracting Govern- ments;

(A) the Secretary General of the League of Nations;

and also the replies to such communications.

(23) "International service means a telecommunication ser- vice between offices or stations of different countries or between stations of the mobile service, unless these latter are of the same nationality and are within the limits of the country to which they belong. An internal or national telecommunication service, which is capable of causing interference with other services outside the limits of the country in which it operates, is considered as an international service from the point of view of interference.

(24) "International telephone circuit means a telephone circuit connecting two telephone exchanges situated in two different countries.

(25) "Land station means a station not capable of moving which performs a mobile service.

(26) "Mobile service" means 2 radiocommunication service effected between mobile stations themselves, special services exclud- ed.

(27) "Mobile station" means station capable of moving which ordinarily does move.

(28) "Normal route" means the route which must be chosen in the first place for the passing of telephone traffic in a particular service.

(29) Power of a radioelectric transmitter supplied to the aerial.

means the power

In the case of a modulated wave transmitter, the power in the aerial is expressed by two figures, one indicating the power of the carrier wave supplied to the aerial and the other the maximum per- centage of modulation actually used.

(30) "Private enterprise means any individual or any com- pany or corporation other than a governmental establishment or agency, recognised by the Government concerned, and operating telecommunication installations with a view to the exchange of public correspondence.

(31) "Private experimental station" means a private station intended for experiments with a view to the development of radio- electric practice or science.

(32) "Private radiocommunication station" means a private station, not open to public correspondence, which is authorised solely