| 摘要 |
PURPOSE:To improve the quality of a call by selecting a calling channel with less noise during the call and also to improve connection probability by switching to other control channels when the set control channel is frequently used by other telephone sets. CONSTITUTION:This system is provided with a carrier detection means 11 for performing the output corresponding to the carrier amount of the channel set by a channel switching means 9, A/D converter 12 for converting the output of the carrier detection means 11 to a digital value and a carrier storage means constituted of a master unit control part 1 for storing the value converted with the A/D converter 12. Then, the channel with the least carrier amount at the time of calling start is selected. |
