A measuring device comprises a first interface, which is adapted to receive a first measuring signal. The measuring device further comprises an acquisition memory, which is adapted to store at least one data segment of the first measuring signal. The measuring device further comprises an analyzer, which is connected to the acquisition memory, and is adapted to analyze the at least one data segment of the first measuring signal and generate a first analysis result therefrom. The measuring device further comprises a memory controller, which is adapted to either keep, in the acquisition memory, or discard, the at least one data segment based upon the first analysis result.