Amerikanska dokument från 1944 - 45 som beskriver APR5 Dessa dokument visar på |
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Dokumenten avhemligades 1947 och kommer från Harvard University - Radio Research Laboratory - som ursprungligen konstruerade APR5 | ||
The Radio Research Laboratory (RRL) was established in 1942 to develop countermeasures to radar. These countermeasures were simultaneously under development at the Massachusetts Institute of Technology (MIT). First located at MIT , the RRL soon moved to Harvard where it was operated by the University during World War II under contract with the U.S. Office of Scientific Research and Development. | ||
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Mimum detectable signal as a function of frequency and other characteristics of APR5a | |
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Sensitivity of the APR5a in waveguidee 3 to 5 cm | |
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A variable cut-off high-pass filter for use with APR5a | |
Övriga APR5: | ||
Blanking of the APR5 search receiver | ||
Waveguide installation for APR5a | ||