TY - RPRT TI - Shuttle STS-2 mission communication systems RF coverage and performance predictions. Volume 1: Ascent AU - Porter, J. A. AU - Gibson, J. S. AU - Kroll, Q. D. AU - Loh, Y. C. PY - 1981 UR - https://ntrs.nasa.gov/citations/19820025718 ID - 19820025718 ER -