Abstract: A conductive and mechanical energy absorbing gasket is used between an electronics package and a cover of an enclosure to provide microphonics isolation. The electronics package is secured to the cover via a gasket using isolation damping grommets and screws, so that the only substantial transmission of mechanical energy from the case to the electronic package is through the screws themselves. The conductivity of the gasket places the entire enclosure at the same potential as the metal in the electronic package and as the mounting screws, and thus helps prevent the screws from acting as RF antennas.

Abstract: Circuitry is disclosed for detecting signal amplitudes of a signal which is phase indicative of a digital logic level and providing a feedback signal for use in amplitude adjusting the signal to have a substantially zero slope over the relevant frequency bandwidth and zero notch in the middle of the band. The compensation is obtained by applying a voltage to variable impedance pin diodes which form part of a reactive load circuit.

Abstract: Circuitry is disclosed for detecting signal amplitudes of a signal which is phase indicative of a digital logic level and providing a feedback signal for use in amplitude adjusting the signal to have a substantially zero slope over the relevant frequency bandwidth. The compensation is obtained by applying a voltage to variable impedance pin diodes which form part of a reactive load circuit.