The Fiber Optics Illustrated Dictionary - Part 100 fills a gap in the literature by providing instructors, hobbyists, and top-level engineers with an accessible, current reference. From the author of the best-selling Telecommunications Illustrated Dictionary, this comprehensive reference includes fundamental physics, basic technical information for fiber splicing, installation, maintenance, and repair, and follow-up information for communications and other professionals using fiber optic components. Well-balanced, well-researched, and extensively cross-referenced, it also includes hundreds of photographs, charts, and diagrams that clarify the more complex ideas and put simpler ideas into their applications context | Fiber Optics Illustrated Dictionary diameter of about 27 km. This type of antenna array was popularized in the movie Contact based upon the book by Carl Sagan. See Very Large Array Expanded. http Very Large Array Expanded EVLA. Based upon the infrastructure of the Very Large Array VL A the EVLA will be an updated virtual telescope of movable radio-based telescopes with far greater sensitivity and angular resolution than the VLA operating at frequencies from about 1 - 50 GHz. It will enable more accurate spectroscopic assessments of the cosmos at different wavelengths. The distance of the new stations being added to the current array may be as far away as 250 km. The communications links between existing and new antenna dishes are being updated with fiber optic links as part of the Phase I expansion. See Very Large Array. very large scale integration VLSI. In the semiconductor industry VLSIs are integrated circuits ICs that combine hundreds of thousands of logic and or memory elements into one very small chip. This type of circuitry revolutionized the cost and manufacture of computers. VLSI has enabled the manufacture of palm-sized computers more powerful than roomsized computers from a few decades ago which were dependent on vacuum tubes and wires for their circuitry. Very Small Aperture Terminal VSAT. Very small commercial terminals for two-way satellite transmissions in the United States and one-way communications in countries with restrictions. VSATs are generally organized in a star topology with the Earth station acting as a central node in the network. This Earth station operates with a large satellite dish and a commercial quality transceiver. In some VSAT implementations the signal from the transmitting Earth station to the satellite is amplified and redirected to a hub Earth station. Since all trans missions pass through this hub two hops are needed for intercommunication between satellites. This results in a bounce pattern known as an M .
