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Partial answer..? In lay mans terms I think there is confusion between a 'complete end-to-end flow from planning the science Webb will perform to posting the scientific data to the community archive' test and an 'environment' test, which is where everything as assembled is tested in specific places such as an anechoic chamber. In this case they are only ...


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Having listened to CuriousMarc's excellent Apollo video and read the DESCANSO Chapter 3 document, there is no evidence that Voyager has any amplification prior to the mixer. At that time, at those frequencies, amplification would likely have involved another travelling wave tube. Quoting from "The feasibility of a direct relay of Apollo spacecraft via ...


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How many solar system bodies have had coherent radio transponders? To communicate with other spacecraft or ground systems at Earth, one needs a transponder or transceiver. So I will show an abbreviated list of objects where landers successfully sent data to either an orbiting spacecraft or directly to Earth. However, the caveat is that I didn't dig into ...


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