Ten Years of RFI - Project Phoenix at Parkes, Green Bank and Arecibo
Michael M. Davis, SETI Institute
Peter R. Backus, SETI Institute
Jill Tarter, SETI Institute
Between 1995 and 2004 Project Phoenix detected and recorded narrowband, drifting CW and pulsed signals between 1200 and 3000 MHz, in a search for extraterrestrial intelligence. The observations were carried out at three major radio observatories, with frequency resolutions of 1 kHz, 1 Hz and, for candidate signals, a few mHz. No narrow bandwidth signals originating beyond the solar system were detected. Each of the millions of candidate signals were analyzed in near real time, and their characteristics stored in a database. Analysis of that database provides a unique snapshot of the radio frequency interference at each observatory, and the longer term evolution of terrestrial and satellite spectrum occupancy over the decade. The data permit comparison of the RFI status within and outside the protected radio astronomy bands in this frequency range.