The third Space Shuttle mission's OSS-1 payload included 30 Hz-800 MHz and S-band receivers which assessed the intentional (transmitter) and unintentional (subsystem) EMI levels. It was noted that, at the pallet location, the UHF voice downlink transmitter field strengths did not exceed 0.1 V/m. At the remote manipulator system, the figure was 0.5 V/m. Below 300 kHz, the magnetic field noise was 30 dB pT + or - 20 dB, while the electric field noise was broadband and variable over at least 60 dB, depending on thruster firings and Orbiter attitude. This noise may have been generated by the Orbiter's interaction with the ambient plasma.
Measurements of electromagnetic interference on OV102 Columbia using the plasma diagnostics package
1984-08-01
Miscellaneous
No indication
English
Spacelab 2 Plasma Diagnostics Package
NTRS | 1990
|Spacelab 2 Plasma Diagnostics Package
AIAA | 1990
|Spectrum Analyzers for Electromagnetic Interference Measurements
SAE Technical Papers | 2009