call+by+radiotelephony

См. также в других словарях:

• Call sign — In broadcasting and radio communications, a call sign (also known as a callsign or call letters, or abbreviated as a call, or otherwise known as a handle) is a unique designation for a transmitting station. In some countries they are used as… …   Wikipedia

• Global Maritime Distress Safety System — The Global Maritime Distress and Safety System (GMDSS) is an internationally agreed upon set of safety procedures, types of equipment, and communication protocols used to increase safety and make it easier to rescue distressed ships, boats and… …   Wikipedia

• Air traffic control — For the Canadian musical group, see Air Traffic Control (band). Airport Traffic Control Towers (ATCTs) at Amsterdam s Schiphol Airport, the Netherlands …   Wikipedia

• Mobile telephony — Mobile phone tower Mobile telephony is the provision of telephone services to phones which may move around freely rather than stay fixed in one location. Mobile phones connect to a terrestrial cellular network of base stations (cell sites),… …   Wikipedia

• communication — I (New American Roget s College Thesaurus) Act of communicating ideas Nouns 1. communication, intercourse, conversation, speech, writing, correspondence; message, tidings, news(see information). 2. communicator, messenger, nuncio; herald, crier,… …   English dictionary for students

• Curtiss JN-4 — JN Jenny Curtiss JN 4 Jenny, 1918 Role Trainer Manufacturer …   Wikipedia

• Marine and mobile radio telephony — Example: Complete GMDSS A3 installation with HF telex. The Marine Radiotelephone Service or HF ship to shore operates on shortwave radio frequencies, using single sideband modulation. The usual method is that a ship calls a shore station, and the …   Wikipedia

• military communication — Introduction       the transmission of information from reconnaissance and other units in contact with the enemy and the means for exercising command by the transmission of orders and instructions of commanders to their subordinates. As such, it… …   Universalium

• pan, pan — The international radiotelephony urgency signal. Preferably spoken three times, it indicates a safety concern with an aircraft or another vehicle, of some person on board, or of someone within sight not requiring immediate assistance. The words… …   Aviation dictionary

• ITU-T — The ITU Telecommunication Standardization Sector (ITU T) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU); it coordinates standards for telecommunications. The standardization work of ITU dates… …   Wikipedia

• Maroc Telecom — Type Public (Euronext: IAM) Industry Telecommunications Founded …   Wikipedia