Abstract: Mechanisms for verification of an item. A controller reads out signals from an antenna array comprising a plurality of individual antenna elements that is configured to overlay an item that generates radio frequency (RF) emissions. The signals quantify the RF emissions received by antenna elements from the item. The controller generates an ad hoc RF emission signature based on the signals. A predetermined RF emission signature associated with the item is accessed. The ad hoc RF emission signature and the predetermined RF emission signature are compared to determine a verification status, and the controller performs a verification action based on the verification status.

Abstract: A fishing reel drag indicator system for numerical quantification of tension applied to fishing line on fishing reels equipped with a drag system features a drag indicator cap having a notch located on a side of an anterior end. A round indicator window is centrally located on a second flat notch side. A cylindrical recess is centrally located on a planar posterior end and an annular channel is centrally located on a recess floor. A gauge spring is located in the annular channel. A top edge of the tension indicator is located against the gauge spring in the annular channel. A main spring is located in the cylindrical recess against a bottom surface of the tension indicator. A bottom plate is located on the posterior end against the main spring. The threaded channel is adapted to screw onto a threaded rod located on the fishing reel anterior end.