International Telecommunications Conferences, Cairo, 1938: Report of the Secretary of State by the Chairman of American Delegation with Appended DocumentsU.S. Government Printing Office, 1939 - 428 pages |
Expressions et termes fréquents
abbreviation accounts acknowledgment of receipt administration or private administrations and private administrations and/or private administrations concerned aeronautical services agreement aircraft stations and/or private operating apparatus applicable ARTICLE avis d'appel Bureau Cairo Conference call signal calling station carrier wave certificate cetera CHAPTER chargeable coast station committees Conference Delegation delivery European regime filing frequency bands government telegrams grams Greenwich mean interference kilocycles land station language letter-telegrams letters line-terminal offices maritime mobile service mobile station money orders nomenclature notified number of words office of destination office of origin on-board station paid-service indicator paid-service notice period phototelegrams plenary assembly préavis press telegrams private operating enterprises provisions radio communications radio direction-finding stations Radio Regulations radiobeacons radiotelegram radiotelephone rates received reforwarding refunded regions request route semaphore sender service notice ship stations tele telecommunication telegraph money telegraph office Telegraph Regulations tion transmission transmitted Union urgent wave wavelengths
Fréquemment cités
Page 138 - These distress signals shall announce that the ship, aircraft, or any other vehicle which sends the distress signal is threatened by serious and imminent danger and requests immediate assistance.
Page 121 - Stations of the mobile service which receive a distress message from a mobile station which is unquestionably in their vicinity, must acknowledge receipt thereof at once (see Nos.
Page 179 - I am busy (or I am busy with . . . ). Please do not interfere. I am being interfered with. I am troubled by static. Increase the power.
Page 187 - Your true bearing in relation to me is degrees or Your true bearing in relation to (call signal) is degrees at (time) or The true bearing of (call signal) in relation to (call signal) is degrees at (time).
Page 124 - ... distinctly marking the seconds, preferably by means of a moving hand completing one revolution per minute. This clock must be placed at a point sufficiently visible from the...
Page 120 - DE, and the call signal of the mobile station in distress transmitted three times. 555 (4) This call shall have absolute priority over other transmissions. All stations hearing it must immediately cease all transmission capable of interfering with the distress traffic, and must listen on the wave used for the distress call. This call must not be sent to any particular station and shall not require an acknowledgment of receipt.
Page 125 - The urgency signal is the international radiotelegraph or radiotelephone signal which indicates that the calling station has a very urgent message to transmit concerning the safety of a ship, aircraft, or other vehicle, or of some person on board or within sight. (2) In radiotelegraphy, the international urgency signal consists of three repetitions of the group "XXX".
Page 95 - Article 12 279. § 1. (1) The competent governments or administrations of countries where a mobile station calls, may demand the production of the license. The operator of the mobile station or the person responsible for the station must submit to this verification. The license must be kept in such a way that it may be furnished without delay. However, the production of the license may be replaced by a permanent posting in the station, of a copy of the license certified by the authority which has...
Page 120 - As a general rule, a ship or aircraft at sea shall signal its position in latitude and longitude (Greenwich) using figures, for the degrees and minutes, accompanied by one of the words North or South and one of the words East or West.
Page 130 - The order of priority of radio communications in the mobile service shall be as follows: 1. Distress calls, distress messages, and distress traffic; 2. Communications preceded by an urgent signal; 3. Communications preceded by a safety signal; » 4. Communications relative to radio direction-finding bearings; 5.