Program control combined filter

The utility model discloses a program-controlled combined filter. The device comprises a communication module, a CPU module and a filtering switching module. Wherein the communication module is connected with the CPU module, the CPU module is connected with the filtering switching module, the communication module is used for long-distance communication, the CPU module controls a switching chip inthe filtering switching module, and the filtering switching module comprises a multi-tree switching structure. Selection of implementation combination filter. According to the program-controlled combined filter, program-controlled selection of a plurality of channel filters is realized through combined switching, frequent manual replacement of the channel filters in a cable television nonlinear index test process is avoided, and the test efficiency is improved. 本实用新型公开了程控组合滤波器，包括通讯模块、CPU模块和滤波切换模块，所述通讯模块与CPU模块相连，所述CPU模块与滤波切换模块相连，所述通讯模块用于远距离通信，所述CPU模块控制所述滤波切换模块中切换芯片，所述滤波切换模块包括多树状型切换结构。实现组合滤波器的选择。本实用新型程控组合滤波器通过组合切换实现多个频道