Engineering topics
Publications and source records attributed to Wright, L..
A keyboard interface designed to allow data input without use of a teleprinter is described. In operation, the keyboard allows JOLT start-up and entry of data for LORAN or OMEGA navigation.
An improved Omega navigation system preamplifier, which provides both ADF and Omega outputs from a single antenna input, is described. This preamp has tuneable bandpass filtering, zero phase shift at both output ports, adjustable gain at the Omega output, and it receives power via the coaxial cable to the receiver front-end.
In-flight information was gathered on two Omega receiver analog modules, one having a 4-Hz bandwidth and the other a 30-Hz bandwidth. The Mini-O receiver was also monitored. An improved signal-to-noise characteristic of the narrower bandwidth front-end with negligible loss in dynamic range indicates that the 4-Hz front-end is the more desirable for the prototype Omega receivers. The Mini-O receiver was found to function quite satisfactorily on its second test flight, and has a very real potential for a low-cost, low-power, compact and light-weight Omega receiver.