81.   The researchers switched orifices only when it became clear they could get better radio contact in the wetter environment of the mouth.

82.   The troops are in radio contact with U.N. headquarters in Sarajevo and have plenty of supplies, the U.N. official said.

83.   They are in radio contact with communications aircraft and spotter planes, which help guide them to potential targets.

84.   They made a base camp, and after several days began their ascent, maintaining radio contact with another climbing party in the area.

85.   Peruvian fighters must first try to make radio contact and visually signal a suspect aircraft to land for inspection before opening fire.

86.   Radio contact between Buhoma and conservationists in Kampala was lost after the attack late Sunday.

87.   Radio contact with aid workers in Tubmanburg indicated that food supplies have dried up and people were surviving on wild roots and leaves.

88.   Radio contact with the plane was lost hours before the crash.

89.   Radio contact with the team was established Saturday from one of the rescue helicopters.