| 摘要 |
A transceiver (10) used in an RF messaging system transmits unscheduled messages on a channel selected by the transceiver (10). The transceiver (10) examines a number of factors prior to selecting a channel, including the power available from its battery (39), the power required to send the message, and which channel it had previously used to successfully transmit a message. Depending on the results of this examination, the transceiver (10) can reject the channel it has used successfully on previous occasions and select a different channel having a different data rate. |
