Satellite communications supply reliable information transmission from anywhere, reaching near and distant locations all over the world.
This lab consists of three different training systems, each focusing on an intrinsic aspect of satellite communications. These include reception systems, satellite communications and GPS application based on satellite navigation signals.
MDC-3273 - Basic Satellite Communications
Subjects Covered
• Concepts of satellite communications • Setting up a direct link • Setting up an active satellite link • Studying a satellite transponder • Setting up a satellite communication link • Studying audio and video transmission via satellite link • Studying a baseband analog signal (voice) in a satellite link • Transmitting and receiving function generator waveforms via satellite link • Transmitting tone via satellite link • Establishing a PC-to-PC communications using a satellite communications link
Structure
• Uplink transmitter, satellite link and a downlink receiver. Frequencies are selectable,
carrying up to three signals – audio or voice, as well as video and data simultaneously
• Accessory set
• Student manual
MDC-3261 – Principles of Satellite Television Reception System
Subjects Covered • Structure and operation of satellite TV reception system • Setting up receiver channels carrier to noise • Bit Error Rate (BER) and signal to noise ratio (SNR) measurements in a digital channel • Satellite transmission - channels bandwidth, transponders • Satellites link budgets – measurements and calculations • Video signals in the reception system
Structure • Main satellite components • Digital positioning receiver • Digital receiver for each workstation • Antenna with 1.8 meter diameter, complete with all associated components • LNB for Ku wideband and C band
Required Measuring Instruments • Combined TV & SAT analyzer (950-2150MHz) • 60MHz dual trace oscilloscope
Accessories • Television set with multi-system features • Software courseware • Student experiment manual
MDC-3272 - GPS Trainer
Subjects Covered • Understanding GPS concepts • Establishing a link between a GPS satellite and the GPS trainer • Measurement of latitude and longitude • Effect of DOP • Familiarization with HDOP & VDOP • Analysis of NMEA 0183 protocols • Analysis of elevation, azimuth, SNR • Familiarization with PRN code • Common NMEA sentence protocols:GPGGA, GPGLL, GPGSA, GPGSV, GPRMC, GPVTG • Studying other GPS NMEA sentences: GPALM, GPGRS, GPGST, GPMSS, GPZDA, • UTC Data & Time • Studying Useful Conversion Formulas
Structure: • 12-channel GPS & carrier • Serial port for communicating with a PC • GPS analysis software • Student manual
