| 摘要 |
PROBLEM TO BE SOLVED: To provide the radio communication system in which no difference is caused in hop frequency data between a master set and a slave set even when the master set and a charger are installed at a remote location. SOLUTION: Communication is started between a master set and a slave set while conducting frequency hopping. The master set sends a speech signal (slave set receives the speech signal) in a first half phase of one frame (S172), the master set receives the speech signal (slave set sends the speech signal) in a latter half phase of one frame (S174). After the end of the latter half phase, the master set (slave set) conducts respectively disturbing detection processing and when any disturbance is detected, the frequency at that time is revised into other frequency so that the frequency at that time is not used succeedingly. When the speech is finished, both the master set and the slave set initialize a hopping table (S179). |
