公开(公告)号：US4776032A

公开(公告)日：1988-10-04

申请号：US940134

申请日：1986-12-10

申请人： Hitoshi Odate ,  Hisao Takahashi ,  Toshio Suzuki ,  Toshio Nojima ,  Sadayuki Nishiki ,  Teruya Fujii

发明人： Hitoshi Odate ,  Hisao Takahashi ,  Toshio Suzuki ,  Toshio Nojima ,  Sadayuki Nishiki ,  Teruya Fujii

IPC分类号： H04B7/155 ,  H04B7/15 ,  H04B7/02

CPC分类号： H04B7/15535 ,  H04B1/525 ,  H04B7/15578

摘要： The system for measuring the spillover signal from a transmitter to a receiver in a same frequency repeater or a booster has a frequency conversion device which slightly offsets the transmission frequency from the reception frequency, and a signal detector which measures the offset frequency component in the reception signal. The offset frequency is around 100 Hz, which is higher than the fading frequency, and low enough not to affect the operation of receivers. The measured spillover level is used to control the gain of the repeater, and/or to cancel the spillover signal, so that the repeater has the maximum gain without suffering from oscillation.

摘要翻译： 用于测量来自相同频率转发器或升压器中的发射机到接收机的溢出信号的系统具有使发送频率与接收频率稍微偏移的频率转换装置，以及测量接收中的偏移频率分量的信号检测器 信号。 偏移频率约为100Hz，高于衰落频率，足够低，不影响接收机的操作。 测量的溢出电平用于控制中继器的增益和/或消除溢出信号，使得中继器具有最大增益而不会发生振荡。