Direction is the shape of the transmission pattern. As the gain of a directional antenna increases, the angle of radiation usually decreases. This provides a greater coverage distance, but with a reduced coverage angle. The coverage area or radiation pattern is measured in degrees. These angles are measured in degrees and are called beamwidths.
1. (Units) Also called: long ton Brit a unit of weight equal to 2240 pounds or 1016.046909 kilograms. 2. (Units) Also called: short ton or net ton US a unit of weight equal to 2000 pounds or 907.184 kilograms. 3. (Units) Also called: metric ton or tonne a unit of weight equal to 1000 kilograms. 4. (Units) Also called: freight ton a unit of volume or weight used for charging or measuring freight in shipping.
The short ton is a unit of mass equal to 2000 lb (exactly 907.18474 kg). In the United States it is often called simply ton without distinguishing it from the metric ton (or tonne) and the long ton rather, the other two are specifically noted.