TEST OF A GENERAL AVIATION TRANSPONDER MODIFIED TO INCORPORATE A CRYSTAL VIDEO RECEIVER.
NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J
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Tests of a modified General Aviation Transponder incorporating a crystal video receiver were performed in order to determine whether it is technically feasible to use this type of receiver in the design of future radar beacon transponders. The modified GAT met specifications or performed as well as the unmodified GAT during most tests however, the unmodified GAT exhibited a low gain-bandwidth product. It was concluded that the technique of using a crystal video receiver in place of the superheterodyne receiver in radar beacon transponders is technically feasible, and when designed as an integral part of a new transponder, may effect a reduction in the cost, weight, or power consumption of the transponder. It was recommended that this technique be considered in the design of future radar beacon transponders. Author
- Air Navigation and Guidance