Abstract: A man-portable wearable antenna system to be worn by a wearer. The wearable antenna system comprises a helmet antenna, a vest antenna worn around the torso, a body antenna worn along the entire body, and a means for routing signals between one of the antennas and a communication device.

Abstract: A self-stabilizing intra-oral saliva evacuator insertable astride the mandibular and maxillary arches to hold the oral cavity open and to maintain the upper and lower molars dry and isolated from contact with the lingual and buccal tissues so long as the evacuator is in place. The semi resilient tempered main body is supported solely by the teeth and a major portion thereof is embraced by flexible tubing connected to evacuating facilities and is provided with strategically located orifices to remove saliva and maintain a particularly copious flow of ambient drying air over the adjacent dental surfaces. The two-part main body, though a permanent assembly, can be readily adjusted to accommodate a range of different oral cavity configurations.