. The Bell System technical journal . )pened to be caused by a relay in the trunk circuit,occurred just prior to and overlapping the tone interval. It would se-riously damage a ring forward signal. The solution to this particularproblem is to absorb the noise at its source, or prevent it from reachingthe ^oice path. After the recei\^er is operated for a short time ( sec or so) the guardaction is removed. Later on when the tone is removed it is desired thatthe receiver release, but noise at this time will tend to prevent solution to this problem is a compromise in receiver sensit
. The Bell System technical journal . )pened to be caused by a relay in the trunk circuit,occurred just prior to and overlapping the tone interval. It would se-riously damage a ring forward signal. The solution to this particularproblem is to absorb the noise at its source, or prevent it from reachingthe ^oice path. After the recei\^er is operated for a short time ( sec or so) the guardaction is removed. Later on when the tone is removed it is desired thatthe receiver release, but noise at this time will tend to prevent solution to this problem is a compromise in receiver sensitivity,, it must be sensitive enough to hold up on the weakest signaling toneand yet release on the maximum noise that can be tolerated from aspeech point of view. Fortunately such a compromise is achieved with asensitivity that will cause the receiver to hold with the tone about 8 db L BEGINNING OFTRANSMITTING TONE. TRANSIENT VOLTAGE AT TRANSMITTING END (-16 TL) BEGINNING OFRECEIVED TONE
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
