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Redesigning avionics comms system

Posted: 07 Jul 2009 ?? ?Print Version ?Bookmark and Share

Keywords:audio communications system? analog? electronic components?

Three point seven-five inches wide. Two point five-o inches high. Four point five-o inches deep. These are the physical dimensions in inches of the now obsolete helicopter cockpit audio communications system that we at Orchid Technologies recently redesigned. Within the given volume, the original audio communications system provided intercom services between two flight personnel and ground. Three way and two way only audio communications with analog headsets was supported. Manually operated controls provided in flight personnel with system status and message indicators. The original communications system received power and audio feeds through hard-wired point-to-point connections inside the instrument manifold. Field service and preventative maintenance was a constant and costly challenge. In flight failure rates were disturbingly high. When critical electronic components could no longer be reliably procured, our client called us to redesign the entire sub-assembly.

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