voice-frequency telegraphy

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• voice-frequency telegraphy — toninė telegrafija statusas T sritis radioelektronika atitikmenys: angl. voice frequency telegraphy vok. Wechselstromtelegraphie, f rus. тональная телеграфия, f pranc. télégraphie par fréquences vocales, f …   Radioelektronikos terminų žodynas

• Telegraphy — (from the Greek words (τηλε) = far and (γραφειν) = write) is the long distance transmission of written messages without physical transport of letters. Radiotelegraphy or wireless telegraphy transmits messages using radio. Telegraphy includes… …   Wikipedia

• Voice procedure — includes various techniques used to clarify, simplify and standardize spoken communications over two way radios, in use by the military, in civil aviation, police and fire dispatching systems, citizens band radio (CB), etc. Voice procedure… …   Wikipedia

• Frequency-division multiplexing — (FDM) is a form of signal multiplexing where multiple baseband signals are modulated on different frequency carrier waves and added together to create a composite signal. Non telephoneFDM can also be used to combine multiple signals before final… …   Wikipedia

• Voice of Russia — For the blues rock band, see Radio Moscow (band). Russian State Radio Company Voice of Russia Type Radio network …   Wikipedia

• Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… …   Wikipedia

• Multiple frequency-shift keying — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• Beat frequency oscillator — A beat frequency oscillator or BFO in radio telegraphy, is a dedicated oscillator used to create an audio frequency signal from carrier wave transmissions to make them audible, as they are not broadcast as such. The signal from the BFO is then… …   Wikipedia

• FMVFT — Frequency Modulated Voice Frequency Telegraphy/Telephony (siehe R.35) …   Acronyms

• FMVFT — Frequency Modulated Voice Frequency Telegraphy/Telephony (siehe R.35) …   Acronyms von A bis Z

• VFT — • Voice Frequency Telegraphy/Telephony (siehe R.30) • Verification FLight Test NASA …   Acronyms