Satellite C-band usually transmits around 6 GHz and receives around 4 GHz. It uses large (2.4- 3.7 meter) antennas. These are the large white domes that you see on top of the cruise ships and commercial vessels.
Inferior Vena Cava Filter Placement and Removal. 1  During Inferior Vena Cava (IVC) filter placement, a filtering device is placed within the IVC, a large vein in the abdomen that returns blood from the lower body to the heart. Blood clots in the veins of the legs and pelvis can occasionally travel to the lungs where they may cause a pulmonary embolism or blockage.
Other filter shapes are also usedâfor example, the birdâs nest IVC filter, which is a random array of wires extending in various directions; the shape is reminiscent of a birdâs nest. There are basically two types of IVC filters, permanent and optional, commonly referred to as retrievable.ilter migration. The entire IVC filter breaks free from the vena cava wall and travels to another part of the body (e.g., lungs, heart). Filter embolization. A part of the filter (e.g., strut) breaks free from the filter and travels to another part of the body (e.g., lungs, heart).