Filler level measuring device

The invention relates to a modular radar fill level measuring device (1) which can be produced in a compact manner. For this purpose, a high-frequency module (11, 12, 120) of the radar fill level measuring device according to the invention is biased in a device housing (131) by means of a spring element (130, 133) in such a way that a waveguide section (120) of the high-frequency module (11, 12, 120) presses against a corresponding high-frequency connection (100) of the antenna arrangement (10) with a corresponding force. In this way, a gap-free and thus low-interference connection of the high-frequency module (11, 12, 120) to the antenna arrangement (10) by means of the waveguide section (100, 120) is ensured. This simplifies the modular design of the fill level measuring device (1). In this case, in particular when the high-frequency modules (11, 12, 120) are accommodated in the measuring device neck (131) of the device housing (13) in the direction of the antenna arrangement (10), the fill level measuring