| 摘要 |
PURPOSE:To attain ease of a reflecting test of own station or the like by controlling a switching section with a signal outputted in performing the own station reflecting so as to attain switching between channels of a transmitting or receiving base band signal. CONSTITUTION:In operating a mode switch SW at a control section 4 for the own station reflecting test, a ''0'' signal is outputted from the mode switch SW, an output of an NAND circuit G1 goes to ''1'', a data DATA1 from a transmission base band signal processing section 1 is applied to a PSK (Phase Shift Keying) modulating section 3 via NAND circuits G4, G7 and a DATA2 is applied to the PSK modulating section 3 via NAND circuits G3, G6. That is, the DATA1 is switched to the 2nd channel of the PSK modulating section 3 and the DATA2 is switched to the 1st channel respectively. Thus, the data received and demodulated by the own station reflecting becomes a correct data, then the data and the transmitted data are collated, allowing to attain the reflecting test of the own station. |
