Antenna selection

Pure Rural Area: Coverage is main target. As we are densely populated, we are using sectorized sites which are built with 3 sectors 120 degree apart. High gain antenna with low vertical opening angle(6/7) and moderate H/O angle(65-90 degree depending on situation) is preferable. In case of scattered traffic, higher horizontal beam width and even omni antenna can be used. This will increase trunking efficiency. Splitters and repeaters can also be used for the same reason.

Suburban area: District town is considered suburban area where we can follow same as rural area except using omni/repeater/splitter.

                Here site position is important which should keep in mind the future traffic trend and major traffic source. Most of our district areas have one big umbrella site with small capacity sites where we should use mid gain antenna.

Urban areas: Grid structure and orientation should be strictly maintained. Antenna with low gain(dense urban) or mid gain(urban) and 65 H/O angle.V/O angle will depend on consistency of building height. If the building height is more or less same then low V/O is preferable otherwise high vertical opening can be a choice which also ensure high-rise building coverage.

Highway/Railway coverage: 2-sector(back to back) site along the direction of road. High gain low v/o and h/o antenna is preferable. Other strategies depend on position of site and direction of road ( using high H/O angle to cover length of road)