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The FSEK30 Spectrum Analyzer has a frequency range of 20Hz to 40GHz and an on-screen dynamic range of 105 dB. It come with low phase noise and OCXO, 1Hz resolution bandwidth and an FFT filter. The unit is outstanding for its extremely low noise floor without any impairment to the dynamic range at large signal levels. This can be seen, for example, from the 1 dB compression point of 10 dBm, which yields a dynamic range of 109 dB even at a resolution bandwidth of 1MHz, allowing GSM, DECT and EDGE power ramps to be determined.