Online Training
Included in Membership
GVF520

Satcom Fundamentals

Fundamental theory of VSAT communications for all VSAT technicians and engineers. Includes advanced interactive graphical simulations.

17
Lessons
10-20
Hours

Course Description

GVF520, the second in a series of three online courses leading to Advanced Satcom Professional Certification, provides the student with a thorough understanding of the fundamental theories of satellite communications. This knowledge is essential for every skilled and effective satellite ground equipment terminal field technician.

Audience:

The course is appropriate for all installers and field technicians who may be responsible for activating any type of VSAT terminal, as well as engineers and technicians desiring a technical introduction to two-way satellite communications.

Delivery:

Animated & interactive HTML5, self-paced, on-line format. Requirements: internet access while studying the course material (high speed preferred ); current browser with JavaScript enabled; permission to access SatProf server and learning system websites; mouse.

Tests:

Each lesson contains a mandatory quiz and simulator-based skills assessments. All pages must be viewed and all quizzes and simulator tests must be passed in order to satisfactorily complete the course.

Lessons Included

  1. Course introduction, including review of Certification requirements.
  2. Satellite communications overview, including spacecraft, transponders, and launch vehicles.
  3. Orbits, with interactive simulator-based orbital mechanics experimenters and 3-D constellation animations.
  4. Footprints, explaining EIRP, G/T, contours, and their relationships to dish size.
  5. Waves, including interactive experimenters for amplitude and frequency; latency; satcom bands.
  6. Gains, losses, and levels, covering fundamentals of dB and level calculations, with interactive animated exercises.
  7. Signals, noise, and spectrums, including real-time spectrum simulation of bandwidth, noise, and C/N.
  8. Modulation, with animated explanations of QPSK, 8PSK, etc, forward error correction, and bit error rate.
  9. Antennas, including sidelobes, patterns, and gain, with interactive experimenters.
  10. Propagation, including rain fade, blockage, snow/ice effects, and animated solar transit outage demonstration.
  11. Satellite links, with breakdown of how a link budget concepts, link margins, and availability.
  12. Polarization, with 3-D interactive animations of linear and circular pol waves, feed systems, and XPD.
  13. Earth station and VSAT equipment, including expanded discussion of components found in larger earth stations.
  14. Access methods, with animated diagrams of SCPC, TDMA, TDM, DAMA, and DVB.
  15. Mobile VSAT overview, including 3-D illustrations of auto-deploy and marine stabilized antennas.
  16. Considering VSAT networks, with discussion of cost, regulatory, safety, and installation issues.
  17. Comparing satellites, including review of satellite advantages and alternatives for specific services.

Samples