| 摘要 |
PURPOSE:To measure the difference in electrical length between two paths in any case by adding newly a relay and an oscillator to a line measuring device of the space diversity system. CONSTITUTION:When a receiving side is provided with two systems of receivers, relays RL1, RL2 are inserted between two receivers RX1, RX2 and a receiving section M2 of a relative delay time measuring device and when a transmission side is provided with two systems of transmitters, the relays are inserted between two transmitters TX2, TX3 and a transmission section SG2 of a relative delay time measuring device. The relays RL1, RL2 are switched at a frequency larger than the sweeping of the transmission section of the relative delay time measuring device from oscillators SG3, SG4, and the difference in electrical length of between two paths is obtained by an amplitude of rectangular wave. |
