Introduction: Lab Satellite Receiver Trainer is based on a modern and complete satellite receiver system consists of an external unit including: parabolic antenna, driven positioner, polarizer and LNB converter. This trainer is mounted in a sleek Anodized Aluminium cabinet defining a compact and functional set indicating the Block diagram of satellite Receiver in multicolour. Test points are provided on an easily accessible panel; the fault simulators are also provided in this trainer. The following objectives are explained in this trainer for the students to understand the complete working principles of satellite receiver system. Where it is useful
Why it is used
Reason of using high frequency for communications via Satellite
Parts of dish antenna
LNB mounting arrangement
Faults due to dish antenna, co-axial cable, LNB
Assembling the dish antenna Alignment of dish antenna
Receiver circuit description. The block diagram of the Satellite Communication Receiver is printed on the front panel of the trainer. All necessary test points are provided to observe various signals at different stages. Controls like Vision IF, gain control, and volume control are provided on the trainer. Training Program: Direct TV signal broadcasting via satellite:orbital path, geostationary satellites, emitted power, covering map, transmission standard, coding systems.
Functional diagram of a reception for TV satellites
Components characteristics: parabolic antenna, illuminator, polarizer, LNB converter, motor-driven positioner, indoor unit, and positioner control
Mounting and tracking of the parabolic antenna: "Azimuth-Elevation" mounting and "Polar" mounting
Motor-driven positioner regulation
Mounting and regulation of the circular and linear (horizontal and vertical) polarizer
Mounting and tracking of the reception converter
Tracking adjustment and memorization of satellite position
Characteristics of the signal converted to intermediate frequency
Audio/video decoders operation: wave-from analysis
Video decoder programming
Audio decoder programming Technical Specifications External Unit: Parabolic Antenna: polar mounting, 1.2 to 3.7m diameter(*), base mounted on self-holding structure
Low noise converter
Polarizer
Positioner
Cables 50m for IF and control Positioner and polarizer
Dimensions: L=parabola diameter, H=1m + parabola ray Indoor unit
Digital Satellite Receiver outputs: video, audio, RF
Antenna Positioner control
Structure: compact box with liftable cover with all the electronic parts, the test points, the fault simulator; and the block diagram of the circuit
Fault simulator: various faults insertable by means of switches
Test points; various test points mounted on panel and directly connected to the circuits of the equipment
Power supply: 230 VAC, 50 Hz MAINS OPERATED.
Dimensions: 82cms x 19cms x 48cms
10 Feet Dish Antenna
Weight: 75 Kgs (approximately) Included Accessories: Theoretical-experimental tests
Inclinometer, colour TV monitor with remote control, compass, power cord
Detailed step by step Instruction Manual
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