| 摘要 |
PURPOSE:To transmit a waveform near the square wave to be transmitted with the maximum modulation degree to secure always the maximum signal level, by utilizing the instantaneous deviation control circuit equipped in the PM transmitter. CONSTITUTION:The data signal input from input terminal 1 is amplified sufficiently by amplifier 2 and becomes always a triangular wave at output end 4 of instantaneous deviation control IDC circuit 3 even for level fluctuation and passes through splatter filter 5 and is modulated with an allowable maximum modulation degree by PM modulator 6 and is transmitted from antenna 7. Meanwhile, this radio wave input from antenna 8 is received by FM receiver 9 and is detected as a waveform near the square wave, which includes fundamental wave components most out of waveforms of the same peak-to-peak, and is output as a data signal through BPF11. |
