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t future climatic change and rising societal water demands are likely to further transform river flow regimes and threaten freshwater ecosystems.This article describes a novel digital L-band EPR spectrometer. The spectrometer uses direct digital detection with time-locked subsampling (TLSS). The device consists of a microwave bridge equipped with a microwave source based on direct digital synthesis (DDS) and a digital receiver. DDS technology combined with an ultra-low noise 1 GHz master clock allowed the development of a digitally contr
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