GTE Lenkurt Demodulator, Volume 10, Issue 11GTE Lenkurt, 1961 - Telecommunication |
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Common terms and phrases
1000 cycle tone 144 weighting 90 dbrn attenuating effect Bell Telephone System C-message weighting complex wave crosstalk coupling CYCLES PER SECOND D. A. Lewinski db meter db transmission level Dba and dbrn dba0 dbm measured dbm0 DbRAP dbrn C-message decibels above reference decibels referred disturbed circuit Edison Electric Institute Electronic Industries Association ence power evaluate the interfering F1A line weighting F1A weighting flat noise FREQUENCY IN CYCLES H. E. Kent handset Institute and Bell interference interfering tone line weighting characteristic logarithmic units means decibels Message Circuit Noise milliwatt noise measuring set Noise powers measured number of different open-wire voice fre power level program volume level quency circuits radio transmitters reference noise power reference power Reference Transmission Level RELATIVE INTERFERING EFFECT-DB Relative Interfering Effects steady sine wave telephone industry telephone sets tone was superimposed transmission level point voice frequency spectrum voltmeter Volume Units VU meters watt weighting curve zero dbm