Testing device for antitheft system deactivator

The invention provides a testing device for an antitheft system deactivator. The testing device comprises a deactivating board and a first receiving circuit. The deactivating board is provided with a first receiving coil. The center frequency of the first receiving circuit is the pulse center frequency of the deactivator. The first receiving circuit comprises a band-pass filtering circuit, an amplifying circuit and a comparative output circuit, wherein the band-pass filtering circuit, the amplifying circuit and the comparative output circuit are successively cascaded. The first receiving coil is connected with the input end of the band-pass filtering circuit. The output end of the comparative output circuit is connected with a built-in timer and a controller with a capturing counting function. The testing device is also provided with a zero-point acquisition circuit and a commercial power transforming circuit. The input end of the zero-point acquisition circuit is connected with the output end of the commercial power transforming circuit. The output end of the zero-point acquisition circuit is connected with a controller. The testing device has advantages of conveniently and accurately testing a transmitting phase synchronization function of a deactivator host, preventing factory leaving of unqualified products, reducing debugging workload, testing and understanding a code energy amplitude and ensuring high consistency of factory leaving equipment.