SRC-579

Satellite Power Systems (SPS) Concept Definition Study (Exhibit D), Volume V - Systems Engineering/Integration Research and Technology -- NASA CR-3396; Contract NAS8-32475; March 1981

Commissioned by Marshall Space Flight Center, Contract NAS8-32475, Exhibit D. Who paid for a study is recorded because it bears on how its conclusions should be read, not because it makes them wrong.

Published claims resting on this source

• CLM-1004 In 1980 the systems contractor's own table said magnetrons were about three billion times (95 dB) noisier than klystrons; a year later the same contractor was quoting the tube maker's claim that a magnetron run without its heater was quieter than a klystron, while also listing proper noise measurements as work still to be done. Anyone citing "the magnetron's noise advantage" from this period has to say whose figure it is.

Cite this