A video stream may include portions that are stored while other portions are being displayed. A spiral conducting plate is disposed around the flow conducting tube. The first portion has a first axial length and a first diameter, and the first portion is configured for operative connection with a pole piece. In another embodiment, a field or factor in an uplink or downlink transmission packet can designate which directional transmission beam is best suited for the transmission or when the directional transmission beam should be activated. The system further has a controller for determining driver awareness of the object based on the detected object position and the eye gaze vector.