Abstract: An antenna system is described that includes a radiating element, a feed point configured for electrical connection to the radiating element, and a grounding point configured for electrical connection to the radiating element. At least one of the feed point and the grounding point are configured to accommodate a range of distances between the electrical connections to the radiating element.

Abstract: The invention provides a coaxial connector assembly comprising a first coaxial connector and a second coaxial connector matable therewith in an axial direction, each connector comprising a mating section having an inner contact surrounded by an outer contact and separated therefrom by a dielectric, the first or second coaxial connectors having a lead-in portion for guiding and locating the connector mating sections of the first and second coaxial connector during plugging together, wherein said inner contact is formed by a resilient metal strip which is integrally formed with a contact portion being adapted to provide a switchable electrical connection with a corresponding counter contact portion depending on the mated or unmated state of the coaxial connector assembly.

Abstract: A low-cost gyroscope can provide an output approaching the accuracy of more precise instruments by processing the gyroscope output signal. First, a calibration algorithm develops a set of coefficients to predict drift. Second, an adaptive operational algorithm updates the coefficients during periods of inactivity and filters out high and low frequency noise components. An accurate, low-cost, rugged aiming device for a weapon can be realized with a simple, relatively-inexpensive gyroscope by utilizing the foregoing algorithms.