| 摘要 |
PURPOSE:To reduce unpleasant sense in the listening in sending/receiving a confirmation signal by changing a reception voice band in transmitting receiving the confirming signal. CONSTITUTION:In entering the talking state, a confirmation signal (ID signal) is transmitted received at a prescribed interval(e.g., 15sec) to ensure the reliability of radio communication. The period in predicting the ID signal in advance, the band of RFLT 11, 23 and each reception voice filter is changed to attenuate the level of the ID signal at the outside of the voice band, thereby suppressing the adjacent channel leakage power. Thus, the voice signal is not lost completely and the unpleasant sense due to the ID signal tone in the listening state is reduced. |
