| 摘要 |
A radio transmitter is described, having power control for increasing and decreasing the power of a transmit signal for use in, but not limited to, a time division multiple access (TDMA) radio system. The transmitter has frequency control means (11, 56) for tuning the transmitter to transmit a signal on a selected radio channel, power control means (13, 26) for increasing and decreasing the power of the signal for transmission in preselected time slots to and from a peak value, and control means (20) for causing the power control means to commence increasing the power while the frequency control means tunes the transmitter to transmit outside the selected radio channel and for causing the frequency control means to tune the transmitter to transmit the signal in the selected radio channel when the power has been increased to the peak value. By ramping up from outside the channel, a slower ramp-up can be achieved, giving rise to less interference. <IMAGE> |
