The top of the tower signal at B 2000 m away from A was sighted through a transit with a recorded vertical angle of 3'30". The height of the mast is 12 m and H.I. of the transit above the point where it is set is 1.10m. The elevation of the point under the transit A is 133.33 m. Compute the elevation of the base of the signal B. 545.025m 355.025m 245.025m 445.025m

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Antenna Characteristics

The antenna is an important concept in the domain of electronics and communication engineering. An antenna forms an integral part of many commonly used devices such as wireless modems, routers, game controllers, mobile phones, bluetooth devices, and so on. In simple terms, any wireless communication makes use of antennas to serve the purpose. An antenna, also known by the term 'arial', is an electrical device that converts electrical signals into electromagnetic waves or electromagnetic waves into electrical signals. An antenna contains a transmission line usually made up of co-axial cable, it then receives the signals and converts them into electromagnetic waves, which are then transmitted via space into their required destination. A communication system essentially makes use of two antennas, a transmission antenna, which converts electrical signals into electromagnetic waves, and a receiving antenna, which receives the electromagnetic waves and converts them back into electrical signals.