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Avionics System Design: How to Prevent Incidents from PEDS
February 1, 2000
More e-mail has come my way on the issues associated with personal electronic devices (PEDs) in aircraft than any other topic. I am indebted to the many readers who provided me with insight into both the political and technical issues involved with...
http://www.aviationtoday.com/av/categories/military/12534.html
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Avionics System Design: Lab Magic
May 1, 2000
Ever so often, a design or test project gets bogged down because some aspect of the lab work hits a brick wall. The method for getting past such a problem is not always so easy or obvious, so it helps to have people pass on their favorite magic...
http://www.aviationtoday.com/av/categories/military/12665.html
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Avionics System Design: Insurance As a Design Parameter
June 1, 2000
In the fall and winter of 1999, something happened quietly behind the scenes in the aviation business that may have changed the nature of avionics design and support permanently, but with very little fanfare. Insurance companies, many fearing...
http://www.aviationtoday.com/av/categories/military/12703.html
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Avionics System Design: In Praise of the Aftermarket
December 1, 2000
While most focus in avionics is on new equipment, an enormous industry exists that is geared towards the repair, restoration and resale of used equipment. Original manufacturers often lose interest in systems after a few years, but the avionics...
http://www.aviationtoday.com/av/categories/military/12939.html
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Avionics System Design: The Pitfalls of Long-Term Storage
May 1, 2001
Storing and archiving design, service and production data is far trickier than it might initially appear. The original data often is computer generated, which means it must be stored in some electronic fashion. Consequently, a company may use...
http://www.aviationtoday.com/av/categories/military/12666.html
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Avionics System Design: Project 25 Radios: A Welcome Standard
June 1, 2001
If you have anything to do with public safety, law enforcement, government agencies or contract/leased aircraft, Project 25 radios will be a reality in your life this year. And these new radios will grow steadily in importance as a key avionics...
http://www.aviationtoday.com/av/categories/military/12706.html
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Avionics System Design: Designing with LEDs
August 1, 2001
Incandescent lamps have almost vanished from many new avionics designs. Now high-efficiency light emitting diodes (LEDs), especially in white, have become inexpensive and readily available. LEDs are widely used for backlighting pushbuttons, panel...
http://www.aviationtoday.com/av/categories/military/12787.html
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Avionics Systems Design: Gratuitous Technology
September 1, 2001
These days, technology seems to race along unfettered by either logic or utility not to mention quality and support in a ceaseless quest for "new-ness" and market position. This condition expresses itself in weird products and services such as...
http://www.aviationtoday.com/av/categories/military/12827.html
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Avionics System Design: Voodoo Audio: Part I
November 1, 2001
Recent flights and discussions with flight and technical personnel have convinced me that cockpit audio remains a poorly understood area one in which a good design requires some innovative bat wing dust and pilots need deep understanding to stay...
http://www.aviationtoday.com/av/categories/military/12914.html
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Avionics System Design: Voodoo Audio: Part II
December 1, 2001
In last month s issue, I began telling the history of the poorly understood subject of cockpit audio. I discussed the introduction of noise-canceling microphones and the accompanying low-impedance headsets. And I mentioned that fully...
http://www.aviationtoday.com/av/categories/military/12953.html
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Avionics System Design: Designing for Space
February 1, 2002
The most difficult avionics design task is making equipment for operation in outer space. The equipment must provide 100 percent reliability under harsh environmental conditions and where repair usually is impossible. While some snicker when...
http://www.aviationtoday.com/av/categories/military/12559.html
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Avionics System Design: Antennas and Feedlines
April 1, 2002
All aircraft start out looking sleek and graceful. Then comes the avionics department, and their sleekness diminishes because every surface seems to have an antenna attached. Large or mission-specific airframes, especially, are outfitted with a...
http://www.aviationtoday.com/av/categories/military/12639.html
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Avionics System: Galileo: Commercializing Satnav
August 1, 2002
Politics represents a powerful force in the design world. It manifests itself in everything from emergency locator transmitters (ELTs) to water purity standards to satellite navigation. A vivid example is Europe s Galileo satellite positioning...
http://www.aviationtoday.com/av/categories/military/12801.html
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System Design: Evaporating Data
February 1, 2003
Recently, we have seen evidence in our shop of a disturbing fault trend that merits wider discussion in the avionics community. My coworkers and I happen to be involved in a great deal of test equipment overhaul. We also supply parts for that...
http://www.aviationtoday.com/av/categories/military/707.html
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System Design: Dispersing Heat: The Solutions
May 1, 2003
In my last column (April 2003, page 47), I noted problems associated with waste heat from avionics components. Here are some suggestions on optimizing boards and assemblies for heat removal. In general, the best strategy is to eliminate waste heat...
http://www.aviationtoday.com/av/categories/military/866.html
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System Design: How to Keep the Cockpit Cool
October 1, 2003
Few working environments impose as many irritating problems as the aircraft cockpit. It is physically cramped but visually open, with as much window space as possible, since the point of being airborne is often to observe. Because of their large...
http://www.aviationtoday.com/av/categories/military/1124.html
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System Design: Designing With Digital Audio
January 1, 2004
Many companies look at digital audio for aircraft systems as a way of improving system operation in the electrically noisy environment. Thanks to effective consumer advertising, "digital audio" has achieved some mystical properties it does not...
http://www.aviationtoday.com/av/categories/military/680.html
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System Design: Forged and Counterfeit Parts (Part II)
September 1, 2004
My first encounter with forged parts was almost 40 years ago. I discovered that some U.S. surplus dealers would strip the markings from expensive tantalum capacitors and connectors, and then select or remake them. Tantalums would be bridged out to...
http://www.aviationtoday.com/av/issue/columns/1078.html
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System Design: The Analog/Digital Coin Toss
September 1, 1999
When starting a design or looking at a test situation, knowing whether to take the digital or analog fork in the road can be quite difficult. As I mentioned last month, there is often a misplaced sense of accuracy attached to digital measurements...
http://www.aviationtoday.com/av/issue/columns/13008.html
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Dispersing Heat: The Problems
April 1, 2003
Heat is an awkward parameter to control in an avionics system, especially if normal operation generates large amounts of it. And every part, wire and circuit board trace that has energy flowing in it generates some waste heat. Removing it from a...
http://www.aviationtoday.com/av/issue/columns/815.html
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