The invention relates to a diagnostics device and to a method for the operation thereof comprising an X-ray system for producing X-ray images, the system comprising an X-ray device and an image system for the X-ray device, and a system for locating objects, wherein adjusting means for changing the frequency of at least one of the two systems are provided, by way of which the two systems can be coordinated with one another such that interference within successive X-ray images is virtually static, and the image system comprises a correcting device which is constructed such that the static interference is eliminated. Diagnostics devices of this type are used in various medical procedures, for example in PCI (Percutaneous Coronary Intervention) and Cardiac EP (electrophysiology) interventions.