 | United States. Federal Communications Commission - 1955 - 280 pages
...intended to carry information 0 (2) Telegraphy without the use of modulating audio frequency 1 (3) Telegraphy by the keying of a modulating audio frequency or audio frequencies or by the keying of the modulated emission (special case: an unkeyed modulated emission) 2 (4) Telephony... | |
 | 1958 - 1028 pages
...modulation Intended to carry Information. Telegraph without the use of modulating audio frequency. Telegraphy by the keying of a modulating audio frequency or audio frequencies, or by the keying of the modulated pulse (special case: an unkeyed modulated pulse). Double sideband, full... | |
 | 1957 - 1010 pages
...Intended to carry Information 0 (2) Telegraphy without the use of modulating audio frequency 1 (3) Telegraphy by the keying of a modulating audio frequency or audio frequencies or by the keying of the modulated emission (special case: an unkeyed modulated emission) 2 (4) Telephony... | |
 | 1952 - 644 pages
...transmission and reception generally known as "Tone Modulation" (amplitude modulated telegraphy by keying of a modulating audio frequency or audio frequencies, or by keying of the modulated emission, A-2), is generally associated with a radio transmitter and receiver in the VHF and UHF frequency bands.... | |
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Telegraphy by the keying of a modulating audio frequency or audio frequencies or by the keying of the modulated emission (special case: an unkeyed modulated emission... 