Radio Frequency Fields Generated by the S-Band Communication Link on OV102
Abstract
The Space Shuttle STS-3 mission carried a Plasma Diagnostics Package (PDP) whose instrumentation included an S-band antenna and detector. The PDP was maneuvered by the Remote Manipulator System arm through a computer controlled sequence in the Orbiter's X-Z plane, above the quad and hemi S-band communications antennas. Antenna field strength measurements were conducted during transmitter high power modes, and the results were compared to ground full scale measurements and predictions. A field strength 4.8 + or - 3 dB higher than predicted is noted. This RF field is primarily due to the quad PM transmitter, whose power output of 115 W compares with 15 W for the hemi.
- Publication:
-
Journal of Spacecraft and Rockets
- Pub Date:
- August 1984
- DOI:
- Bibcode:
- 1984JSpRo..21..398M
- Keywords:
-
- Electromagnetic Interference;
- Remote Manipulator System;
- Space Communication;
- Space Transportation System 3 Flight;
- Spacecraft Antennas;
- Ultrahigh Frequencies;
- Antenna Radiation Patterns;
- Instrument Errors;
- Radio Antennas;
- Signal Detectors;
- Superhigh Frequencies;
- Space Communications, Spacecraft Communications, Command and Tracking