| 单词 | call signal |
| 释义 | > as lemmascall signal call signal n. (a) a signal, typically an audible one, that a telegraphic message has arrived, or that there is a telephone call to be answered (now rare); (b) = call sign n. (b). ΘΚΠ society > communication > telecommunication > radio communications > [noun] > radio codes and call-signs call signal1853 call letter1876 call sign1896 ten signal1951 good buddy1956 Zulu1960 ten-code1969 twenty1975 society > communication > telecommunication > telegraphy or telephony > telephony > [noun] > signals or tones call signal1853 telephone call1878 tone1878 ring-off1885 busy tone1902 buzz1913 dialling tone1917 dial tone1920 ringtone1921 ringing tone1922 pip1929 pip-pip-pip1936 logatom1937 pay-tone1958 ringtone1984 1853 H. Mapple & D. M. Mapple Brit. Patent 2345 (1854) 359 The call signal or alarum consists in placing aney number of weights or balls at aney required heigth; an electric current sent from a distant station will act upon a lever, and release the weights or balls, wich, falling on aney sounding material,..will call attention. 1884 Every Boy's Ann. 120/2 This system can make a Bell telephone..speak loud enough to be heard throughout a room; and it comprises besides a call-signal within itself. 1912 in Year-bk. Wireless Telegr. (1913) 52 The call signals must be differentiated from one another, and each one must consist of a group of three letters. 1922 Pop. Radio Aug. 273/1 Suppose the Smith Manufacturing Co. enters an application for a radio license and asks for the allotment of a call signal for its station. 1961 Nation's Business Sept. 50 (advt.) Call signals and lights [on an intercom] can be soft and courteous, yet efficient. 2005 Occup. & Environmental Med. 62 761/2 The Registry..includes information on name, date of birth, job title, name and call signal of the ship. < as lemmas |
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