在电缆载波机的自动调节电平系统,常常采用所谓Bode如可变均衡器(有时称凸形可变均衡器)。图1和图2分别示这种基本的串联式和并联式均衡器网络。图上画出了信号源内阻和负载电阻与辅助四端网络特性电阻的关系,后者已归一化为R_0=1。最常用的辅助网络形式是定值电阻的衰耗均衡器,通常为桥T形网络,特性阻抗R_0,转移常数Ψ’=β_0’+jα。有时这衰耗均衡器串接一四端相移网络,一般是 In cable carrier auto-leveling systems, so-called Bode such as variable equalizers (sometimes called convex variable equalizers) are often used. Figures 1 and 2 show this basic network of series and parallel equalizers, respectively. The graph shows the relationship between the signal source internal resistance and load resistance and the auxiliary four-terminal network characteristic resistance, which has been normalized to R_0 = 1. The most common form of auxiliary network is the decay equalizer of a fixed value resistor, usually a bridge T-shaped network with characteristic impedance R_0 and transfer constant Ψ ’= β_0’ + jα. This attenuation equalizer sometimes connected in series with a four-terminal phase shift network, generally