Embodiments of the present invention relate to avionics systems, and more particularly, to collision avoidance systems. The process is additive in character, as opposed to traditional subtractive etch processes for forming capacitor structures. An opening extends through the end wall and is adapted to receive the terminal end of a J-hook therethrough. The top piece further includes a cover flap to conceal the fasteners on each respective piece. The comparison may be accomplished visually by reading the meter and comparing the readings with the information received on the mobile computing device. A corresponding focus correction occurs with a radial displacement of the scanner objective.