TELECOMMUNICATIONS SYSTEM

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Job Title : ICT TECHNICIAN Reference Code : EC-2004133 Company Qatar Petroleum (QP) is a state-owned public corporation established by Emiri Decree No. 10 in 1974. It is responsible for all phases of the oil and gas industry in the State of Qatar. The principal activities of QP, its subsidiaries and joint ventures are the exploration, production, local and international sale of crude oil, natural gas and gas liquids, refined products, synthetic fuels, petrochemicals, fuel additives, fertilizers, liquefied natural gas(LNG), steel and aluminium. QP’s strategy of conducting hydrocarbon exploration and development is through Exploration and Production Sharing Agreements (EPSA) and Development and Production Sharing Agreements (DPSA) concluded with major international oil and gas companies. The operations and activities of QP and its affiliates are conducted at various onshore locations, including Doha, Dukhan and the Mesaieed and Ras Laffan Industrial Cities, as well as offshore areas, inc...

  97cm Ka band JONSA TECHNOLOGIES CO., LTD. provides VSAT (Very Small Aperture Terminal) at Ku band and Ka band frequency, to meet customer's demands in satisfactory. Specifications Item No. VSAT E97 Reflector Dish Type Elliptical Offset Angle 18.44° Physical Size Short Axis 97cm Physical Size Long Axis 99.8.cm Aperture Diameter 95.8.cm F/D Ratio 0.75 Focus Length 710mm Antenna Specification Operation Frequency TX RX Efficiency 29~ 31 GHz 19.2 - 21.2 GHz Ka-Band Gain 70% Min. 70% Min. 3d8 Beamwidth 46.9dBi @29GHz 43.9 dBi@ 19.2 GHz TX/RX Sidelobe Level 0.7° Max. 1.1°  Max. 29-25 logθdB θmin θ≦04 20 -3.5dB 20°<θ ≦ 26.3° 32-25 log θdB 26.3°θ ≦ 48° Cross Polarization on Axris -10dB 48° θ ≦ 180° within 1 dB Beamsidth 30 dB Min 25 dB Min Mounting Mounting Type Pole Mount Adjustment Type AZ / EL Adjustable Material Galvanized Steel Finish Polyester Coating Color Cool Grey / Dark Grey Elevation Range 10° ~90° Azimuth Range 0°~360° Pole Diameter Acceptable ¢60 mm Environment Operat...

 https://www.nisshinbo-microdevices.co.jp/en/products/micro/vsat/njr2825.html

 https://www.miwv.com/standard-gain-horn-antennas/

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  Antenna Theory - Fundamentals A person, who needs to convey a thought, an idea or a doubt, can do so by  voice communication . The following illustration shows two individuals communicating with each other. Here, communication takes place through  sound waves . However, if two people want to communicate who are at longer distances, then we have to convert these sound waves into  electromagnetic waves . The device, which converts the required information signal into electromagnetic waves, is known as an  Antenna . What is an Antenna ? An Antenna is a transducer, which converts electrical power into electromagnetic waves and vice versa. An Antenna can be used either as a  transmitting antenna  or a  receiving antenna . A  transmitting antenna  is one, which converts electrical signals into electromagnetic waves and radiates them. A  receiving antenna  is one, which converts electromagnetic waves from the received beam into elec...