Jamming device for jamming a frequency hopping signal , the jamming device comprising: at least one receiving antenna configured to receive signals in the signal spectrum of the frequency hopping signal , an emission detection unit configured to detect relevant emissions in the received signals that pertain to the frequency hopping signal , wherein the emission detection unit is configured to detect the relevant emissions based on a predefined set of configurable parameters , and wherein the configurable parameters comprise a frequency band and/or frequency channel center frequencies for the frequency channels and/or widths for the frequency channels and/or timing information about the frequency channel changes of the frequency hopping signal and/or a minimum energy threshold value for detecting one of the relevant emissions in a frequency channel, and an effectivity analysis unit configured to determine and output the effectivity of the emission detection unit based on the number of the detected relevant emissions and an expected number of relevant emissions of the frequency hopping signal , and a signal analyzer that is configured to analyze the received signal and determine the configurable parameters based on the received signal , wherein the signal analyzer is configured to tune at least the minimum energy threshold value for detecting a relevant emission in a frequency channel such that the number of detected relevant emissions is approximately equal, especially equal, to the expected number of relevant emissions . at least one receiving antenna configured to receive signals in the signal spectrum of the frequency hopping signal , an emission detection unit configured to detect relevant emissions in the received signals that pertain to the frequency hopping signal , wherein the emission detection unit is configured to detect the relevant emissions based on a predefined set of configurable parameters , and wherein the configurable parameters comprise a frequency band and/or frequency channel center frequencies for the frequency channels and/or widths for the frequency channels and/or timing information about the frequency channel changes of the frequency hopping signal and/or a minimum energy threshold value for detecting one of the relevant emissions in a frequency channel, and wherein the emission detection unit is configured to detect the relevant emissions based on a predefined set of configurable parameters , and wherein the configurable parameters comprise a frequency band and/or frequency channel center frequencies for the frequency channels and/or widths for the frequency channels and/or timing information about the frequency channel changes of the frequency hopping signal and/or a minimum energy threshold value for detecting one of the relevant emissions in a frequency channel, and an effectivity analysis unit configured to determine and output the effectivity of the emission detection unit based on the number of the detected relevant emissions and an expected number of relevant emissions of the frequency hopping signal , and a signal analyzer that is configured to analyze the received signal and determine the configurable parameters based on the received signal , wherein the signal analyzer is configured to tune at least the minimum energy threshold value for detecting a relevant emission in a frequency channel such that the number of detected relevant emissions is approximately equal, especially equal, to the expected number of relevant emissions . <EOS>