SRC-577

Satellite Power Systems (SPS) Concept Definition Study, Final Report (Exhibit D), Volume II: Systems/Subsystems Analyses -- SSD 80-0108-2; NASA CR-3393 per filename, not confirmed on pp.1-4; October 1980 (this SSD-numbered cover)

Rockwell International, Space Operations and Satellite Systems Division ·1980 · T3 government or agency report · VC02

Commissioned by NASA/MSFC, Contract NAS8-32475, Exhibit D, DPD 567 MA-04. Who paid for a study is recorded because it bears on how its conclusions should be read, not because it makes them wrong.

SSD 80-0108-2; NASA CR-3393 per filename, not independently confirmed in the SSD-numbered text read on pp.1-4; contract NAS8-32475; no NTRS N-number printed the identifier this document is registered under

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

energyaperture.com/s/src-577

SRC-577 , recorded 2026-09-17.